Waterworks Hydraulic
I.T.G. Innovative Technologies Group Ltd is the exclusive distributor of Raphael Valves Industries Ltd products on the territory of the Republic of Azerbaijan and Georgia.
Raphael Valves Industries Ltd, founded in 1949, part of Talis Group, is the first Israeli manufacturer of quality control valves. Since then, RAPHAEL is leading the Israeli and international market valve industry with its wide and innovative product range.
Located in a new modern facility, RAPHAEL's product range includes hydraulic control valves, butterfly valves, gate valves, check valves and other products.
Various coating technologies including epoxy, Rilsan (Nylon 11), enamel, give the ability to supply high quality protection for special applications.
RAPHAEL's R&D department constantly strives to introduce new and innovative products and solutions for water control systems including waterworks, sewage, irrigation, and industry specific. All products are subject ISO 9001..2008 quality control and pass strict pressure tests in the company's testing plant during manufacture and assembly.
Raphael's valves are designed to meet the requirements of water utility systems, wastewater or recycled water. From simple operated valve to a sophisticated water management system, Raphael automatic control valves perform with precision and accuracy to provide exact control of pressure, leakage prevention, flow, level, surge, pump control and more.
RAY – "Y" pattern, double chamber diaphragm control valveRAY
RAY is a high performance hydraulic control valve. The "no-spring" valve has a double-chamber, rubber and fabric diaphragm actuating a guided globe plug.
This new design consists of one universal throttling plug in each size to suite all applications needs. Designed to provide low friction loss yet prevents water surge. It is the valve of choice for water distribution and industrial use. Here again simplicity and perfection came into one.
Diameter: DN50 – DN300
Working Pressure: PN10-PN16
Standard: DIN/ANSI/BS
Parts' breakdown of RAY
The RAY 60 is a piloted hydraulic valve activated by line pressure. The pilot valve has a spirng-loaded membrane, which is sensitive to downstream pressure. The pilot's spring is preset to a desirable reduced pressure. The pilot valve maintains a constant downstream pressure by gradually opening and closing of the main valve. The pressure is maintanied constant regardless of changes in the flow rate.
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The RAY 70 maintains a steady flow rate at any working conditions. Regardless of pressure chagnes or demand, the vale will keep flow constant. The flow is controlled by a pilot and a calibrated orifice plate, and can be adjusted within a range of 20%. The orifice plate size is determined by the requiered flow range and is specific for each project.
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The RAY 68 performs both pressure reducing and pressure sustainnig features. It maintains a constant upstream pressure to an adjusted value as a pressure sustaining valve, and reduces greater upstream pressure to a steady lower downstream pressure as a pressure reducing valve. Both functions occur independently, and the valve constantly modulates accordingly.
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The RAY 80 pressure sustainig valve automatically controls the preset upstream pressure. The inlet pressure will be maintained steady reagardless of changes in flow rate or downstream pressure. The pressure sustaining valve is commonly used as a pressure relief valve, installed in a T configuration. At any conidition, the valve will open only after the preset pressure is achieved.
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The RAY 13, Bi level control valve maintains liquid level in water tanks, reservoirs and water storages. The valve will fully close at a high preset point when water reaches its maximum level, and fully opens at a different, adjustable preset point, allowing water flow in. The bi level control vale is an on/off, non modulating control valve.
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The RAY 40, altitude control valve automatically maintains liquid level in water tanks, reservoirs and storages at its maximum preset point. The valve is pilot controlled, and operates by comparing the water column pressure to the spring adjustment. The valve will be fully closed when the water reaches its preset level. The opening level is determined by the spring selection and varies from 30 to 100 cm.
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The RAY 8020, pump control valve is made to protect pumps from possible damages caused by powerful start-ups and shut-downs of centrifugal pumps. The valve's purpose, is primarily minimizing the formation of surges during on/off operation of the pump, and pretect pump from backflow. The valve is electrically interlocked with pump's control panel. Opening and closing speed can be adjusted, offering a smooth start-up and shut-downs. By the action of a pilot, the pump control valve is also used to regulate maximum flow.
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The RAY 90, anti-burst valve, prevents water flow in pipes and systems that have been physically damaged from any reason. A high sensitivity flow pilot and an orifice plate, that indicates the current flow in the pipeline, control the valve. When a preset flow ("burst" condition) is reached, the valve will tight close. The valve can only be re-opened manually by turning the manual override cock valve in its control loop.
RAF - Diaphragm Control ValveRAF
In 1993 Raphael has launched RAF - a new concept of diaphragm hydraulic control valve consisting of three basic parts: body, cover and diaphragm, each one is made of durable materials.
The inner flow passages are streamlined and coated with low-friction materials.
This provides quiet flow in both directions, low head-loss and minimal wear.
RAF valves operate with a patented reinforced diaphragm, which eliminates the need for a retaining metal spring. The special elastic design enables gradual and precise opening and closing of the valves. By eliminating a metal spring, the RAF is virtually maitenance free.
Diameter: DN25 - DN350
Standard: DIN/ANSI/BS
Part's breakdown of RAF valve
Two Way Pressure Reducing/Sustaining Control Valve
The RAF 60 and RAF 62 are piloted hydraulic valves activated by line pressure. The pilot valve has a spirng-loaded membrane, which is sensitive to downstream pressure. The pilot's spring is preset to a desirable reduced pressure. The pilot valve maintains a constant downstream pressure by gradually opening and closing of the main valve. The pressure is maintanied constant regardless of changes in the flow rate.
Typical Applications: Use for general water supply systems with medium pressure rating. The 2-way pilot configuration together with Raphael's patented diaphragm enables smooth and precise pressure control.
The RAF 68 and RAF 682 are piloted hydraulic valves activated by line pressure. Both pilots have spring-loaded membrane. One pilot is sensible to upstream pressure and the other to downstream pressure. The combined operation of the two pilot valves sustain a constant upstream pressure of the valve, and at the same time reduces the downstream pressure to a preset pressure. The 68/682 valve opens and closes gradually to maintain both required pressures simultaneously.
Typical Applications:
use to pressure reducing/sustaining valve to define two pressure zones along a supply line, typically, along a downhill flow. Use 68/682 for general water supply systems with medium pressure rating. The elaborated 2-way command with Raphael's patented diaghragm enables smooth and precise pressure control.
Flow Rate Control Valve
The RAF 70 are piloted hydraulic valves activated by line pressure. Normally the RAF 70 is partly open to allow a preset constant flow rate. The flow rate through the RAF 70 is determined indirectly using an orifice plate. The head loss across the orifice is proportional to the actual flow rate. On rising head loss, the RAF 70 is automatically piloted to close. On the other case, the valve opens. Thus the flow rate is maintained constant, regardless of line pressure fluctuations or the downstream deman.
Typical Applications:
Use RAF 70 Flow Rate Control valve to maintain a compensated constant flow rate to limit the flow downstream. RAF 70 has two-way metal pilot valve for general use in wter supply systems of medium pressure rating. Apply RAF 70 to eliminate excessive pumping or to limit the water demand.
The RAF 88 are adjusted to eliminate hazardous pressure surges typical of water hammer conditions. A water hammer is caused by an abrupt shutoff of a pump or rapid closure of a main valve, causing a fast, propagation of low-pressure fornt, followed by an extremely high-pressure waves, each one composed of alternating low and high pressure is created within a few seconds.
The RAF 88 is a piloted hydraulic valve activated by line pressure. The valve has two pilots, for high and low pressure. Under normal conditions, the RAF 88 is closed. It opens when the line pressure drops below a preset pressure, in anticipation to the following surge, and remains open until the fluctuations subside.
Typical Applications:
Use RAF 88 to protect water lines against water hammer damages. Uphill supply lines of considerable length and large diameter pipes are more susceptible to water hammer damages.
Quick Pressure Relief Control Valve
The RAF 80Q are piloted hydraulic valves activated by line pressure. The two-way pilot valve has a spring-loaded membrane, which is sensitive to upstream pressure. The RAF 80Q is normally closed. As line pressure rises above the preset level, the valve opens quickly to relieve the excessive pressure.
Quick pressure relief valve protects water systems from quickly rising excessive pressure, due to water hammer surge. It is recommended to install RAF 80Q at the system head, right next to the main supply line or booster pump.
Typical Applications
Use RAF 80Q for general water supply systems with medium pressure rating. The elaborated two-way pilot with Raphael's patented diaghragm enables smooth and precise pressure control.
Flow Rate Control Valve
The RAF 31-33 are activated by line pressure. The valves open or close by electric command through a selectioin of solenoid valves. the solenoid opens or closes the RAF/RAY/G 31-33 as it is energized by an electric pulse. The electric pulse that commands the valve is generated by a controller, timer, sensor or an electric control device.
Typical Applications:
RAF 31-33 are used for remote operation of hydraulic valves by an electric command. The valves can be configured either as Normally Open (NO) or Normally closed (NC).
Altitue Control Valve
The RAF 40/43 is usted to maintain a preset water level of reservoirs or water tanks. The RAF 40/43 is activated by line pressure, and is commanded by an Altitude pilot. The altitude pilot is mounted on the valve, threfore there is o installation requiered on top of the reservoir. The RAF 40/43 controls the maximum water level of the reservoir by controlling the maximum water column pressure generated by the water inside the water storage.
The RAF 40/43 stays open as long as the water level of the reservoir is below a preset level. The RAF 40/43 is a non modulating service valve, operating as an on/off valve.
Typical Applications:
Use RAF 40/43 for reservoirs and water tanks level controls, especially in high rise reservoirs. Line pressure provides energy suitable for operation. RAF 40/43 is particularly suitable for remote sites. Due to its simple design it is vitually maintenance free.
Two-Way Pressure Sustaing/Relief Control Valve
The RAF 80/82 are piloted hydraulic valves activated by line pressure. The pilot valve has a spring-loaded membrane, which is exposed to the upstream pressure. The valve is normally closed. Only when the line pressure rises above a preset point, the RAF 80/82 opens to relieve the excessive pressure downstream without causing surge hazards. When the line pressure drops, the RAF 80/82 closes.
Typical Applications:
Use RAF 80/82 to maintain constant upstream pressure and to avoid undesirable high pressure. This protection is required for most irrigation devices, domestic and industrial utilities. Use RAF 80/82 for general water supply systems with medium pressure rating.
Three-Way Pressure Sustaing/Relief Control Valve
The RAF 83B are piloted hydraulic valves activated by line pressure. The pilot valve has a spring-loaded membrane, which is exposed to the upstream pressure. The valve is normally closed. Only when the line pressure rises above a preset point, the RAF 83B opens to relieve the excessive pressure downstream without causing surge hazards. When the line pressure drops, the RAF 83B re-closes.
Typical Applications:
Use RAF 83B to maintain constant upstream pressure and to avoid undesirable high pressure. This protection is required for most irrigation devices, domestic and industrial utilities.
Anti-Burst Control Valve
The RAF 90 are piloted hydraulic valves activated by line pressure. The valve is normally open. Only in case of flow rate higher than a preset maximum, due to a burst or excessive demand downstream, the RAF 90 is automatically closed down and can reopen manually. The actual flow rate through the RAF 90 is determined by comparing the headloss acrossan orifice plate. the valve is closed down by a hydraulic relay.
Typical Applications:
Use RAF 90 to eliminate water loss and damage due to piping burst. The valve is best in networks susceptible to burst due to old piping, vandalism or pressure surge. The RAF 90 features a metal pilot valve and hydraulic relay to ensure precise and reliable response in general use.
Electric Float Control Valve, 3-W Metal Solenoid
Nominal Diameter 1.5" - 12"
The RAF 10 stays open as long as the water level in the reservoir is below the maximum preset level. As the water level rises and filts the float, the valve gradually closes.
The 10 float level control valve is activated by line pressure in any situation that maximum water level should be maintained.
When the water level is low, the control chamber of the valve is drained through the vent, the valve opens and the reservoir is being filled.
Typical Applications
Use 10:
* to fit in remote sites
* to maintain a miximum preset water level in a reservoir or water tank in a simple and an enocomic manner.
* can be located above the water level.
Due to its simple design, it is virtually maitenance free.
There is no need for energy other than line pressure.
3Way Pressure Reducing Control Valve
The The RAF 63B pressure reducing valve is a line pressure hydraulically actuated, 3-way pilot.
The RAF 63B maintains a constant downstream pressure, as set on the 3-W pressure reducing pilot, regardless of flow changes.
The 3-way pilot configuration together with Raphael's patented diaphragm enables smooth and precise pressure control.
Typical Applications:
Use RAF 63B:
* for water supply systems with medium pressure rating
* for irrigation water distribution, water treatment circulation and filtration network
The 3-W plastic pilot has a simple design that proveides high corrosion resistance and cost effective prices.
3Way Pressure Reducing & Sustaining Control Valve
The RAF 683B pressure reducing & sustaining valve is a line pressure hydraulically actuated.
The RAF 683B maintains a minimum upstream pressure, as set on the 3-W pressure sustaining pilot and a maximum downstream as set on the 3-W pressure reducing pilot, regardless of flow changes.
The 3-way pilot configuration together with Raphael's patented diaphragm enables smooth and precise pressure control.
Typical Applications:
Use RAF 683B:
* for water supply systems with medium pressure rating
* to define two pressure zones along a supply line
* for irrigation water distribution and field control
Electric Float Control Valve, 3-W Metal Solenoid
Electric Float Control Valve, 3-W Metal Solenoid RAF 1031
Pressure Rating PN-16
Nominal Diameter 1.5" - 12"
The RAF 1031 is a Normally Closed (N.C.) electric float control valve, activated by line pressure.
When the level drops below the float, the electric circuit is switched on and opens the valve through a solenoid valve. As the rising water reaches the maximum level, the solenoid is de-energized and the RAF 1013 closes.
Typical Applications
Use RAF 1031:
* for water level control
The valve is best for remote or local control of reservoirs and water tranks level control when electricity is available.
Due to its simple design, it is virtually maitenance free.
Bi-Level Control Valve, 3-W Float Pilot
Bi-Level Control Valve, 3-W Float Pilot RAF 13
Pressure Rating PN-16
Nominal Diameter 1.5" - 12"
The RAF 13 is activated by line pressure and controls by a float pilot.
The valve will open at a low preset water level and will close at a high preset water level. Therefore, there is no need for energy other than line pressure.
The RAF 13 allows filling and draining of a reservoir or a water tank in a level range that can be easily changed.
The RAF 13 stays in its last position (fully open or fully close) as long as the water level is in between minimum and maximum preset levels.
Typical Applications
Use RAF 13:
* to control filling of reservoirs and water tanks, in any situation that water level is controlled
* is best fit where on/off non-modulating valve operation is essential
Due to its simple design, it is virtually maitenance free.
Pump Protection Control Valve
Pump Protection Control Valve RAF 20
Nominal Diameter 1.5" - 12"
The RAF 20 regulates the pressure level during the start and shut-off of a pump to protect the pumping assembly and the downstream network. The RAF 20 is applicable with slightly different layout and switching, for either vertical (deep well) or horizontal (booster) pumps.
the valve is connected electrically to the pump's control panel.
Typical Applications
Use RAF 20:
* with any pump to protect the pump housing, the pumping accessories and water lines.
G - Globe Pattern, Piston Actuated Control ValveG
Hydraulic Control Valve is the most efficient valve for automatic operation of industrial and municipal distribution systems or any other system that requires adjustable working conditions.
The valve operates by pipeline water pressure and does not require any other external energy source. The valve is a completely independent device and can be installed at any location in the pipeline, provided there is just a minimum water pressure allowing its operation. An operating piston surface double the size of the sealing surface enables the control chamber movement towards opening or closing with no external force or energy required.
The G type is a piston actuated valve, which varies from 2" to 32" in a pressure ranging from PN-16 to PN-64.
Raphael G type, globe pattern, piston actuated control valves are a heavy duty, high pressure and large diameters throttling valves.
As a piston actuated valve it is specially designed to withstand high restriction levels at a wide range of flow and diameters.
The metal construction of the piston enables a smooth operation, with no vibrations. Bronze and Stainless steel internal parts provide a cavitation resistance at very low flows keeping metal and iron parts of valves from being damaged. Low corrosion rates are obtainable due to high quality bronze and stainless steel internal parts and high quality epoxy or enamel coating (Potable water approved).
Regulation in high restriction rates is obtainable by a half restricted plug that combine a cost effective protection to seat and seal, keeping sensitive parts in the valve from high velocity water passage.
Globe pattern body construction gives equal wear for the control unit, thus prolonging its lifespan.
Diameter: DN50 – DN900
Working Pressure: PN16-PN64
Standard: DIN/ANSI/BS
The G 60/62G is a piloted hydraulic valve activated by line pressure. The pilot valve has a spirng-loaded membrane, which is sensitive to downstream pressure. The pilot's spring is preset to a desirable reduced pressure. The pilot valve maintains a constant downstream pressure by gradually 
opening and closing of the main valve. The pressure is maintanied constant regardless of changes in the flow rate.
The G 70 maintains a steady flow rate at any working conditions. Regardless of pressure chagnes or demand, the vale will keep flow constant. The flow is controlled by a pilot and a calibrated orifice plate, and can be adjusted within a range of 20%.The orifice plate size is determined by the requiered flow range and is specific for each project.
The G 68 performs both pressure reducing and pressure sustainnig features. It maintains a constant upstream pressure to an adjusted value as a pressure sustaining valve, and reduces greater upstream pressure to a steady lower downstream pressure as a pressure reducing valve. Both functions occur independently, and the valve constantly modulates accordingly.
The G 80 pressure sustainig valve automatically controls the preset upstream pressure. The inlet pressure will be maintained steady reagardless of changes in flow rate or downstream pressure.
The pressure sustaining valve is commonly used as a pressure relief valve, installed in a T configuration. At any conidition, the valve will open only after the preset pressure is achieved.
The G 13, Bi level control valve maintains liquid level in water tanks, reservoirs and water storages. The valve will fully close at a high preset point when water reaches its maximum level, and fully opens at a different, adjustable preset point, allowing water flow in. The bi level control vale is an on/off, non modulating control valve.
The G 40, altitude control valve automatically maintains liquid level in water tanks, reservoirs and storages at its maximum preset point. The valve is pilot controlled, and operates by comparing the water column pressure to the spring adjustment. The valve will be fully closed when the water reaches its preset level. The opening level is determined by the spring selection and varies from 30 to 100 cm.
The G 88, surge anticipating valve pretects pipeline systems and its accessories from damages caused by water hammers. The valve is built to anticipate the dangerous energy accumulation that occurs during a surge and relieves it out of the pipeline. With the beginning of the pressure drop, that indicates the water hammer evolution, the valve will open, relieving the necessary amount of fluid to the atmosphere, and prevents the continuance of the surge. In case pressure rises, the valve will reopen, relieving excess pressure a s Pressure Relief valve.
The G 8020, pump control valve is made to protect pumps from possible damages caused by powerful start-ups and shut-downs of centrifugal pumps. The valve's purpose, is primarily minimizing the formation of surges during on/off operation of the pump, and pretect pump from backflow. The valve is electrically interlocked with pump's control panel. Opening and closing speed can be adjusted, offering a smooth start-up and shut-downs. By the action of a pilot, the pump control valve is also used to regulate maximum flow.
The G 90, anti-burst valve, prevents water flow in pipes and systems that have been physically damaged from any reason. A high sensitivity flow pilot and an orifice plate, that indicates the current flow in the pipeline, control the valve. When a preset flow ("burst" condition) is reached, the valve will tight close. The valve can only be re-opened manually by turning the manual override cock valve in its control loop.
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Plastic - PC
3-W Pressure Pilot Control
Valve Diameter 1"- 6D"
Application
The Plastic PC, 3-W pressure pilot, is used in pressure reducing and pressure sustaining/relief applications. Two pilot valves can be combined together on single vale to form bi-functional valve operation.
Combining pressure reducing and pressure sustaining functions is used to prevent excess water flow during pipeline filling.
The pressure regulating model is available in normal pressure or low pressure configurations.
The pilot valve body is made of high quality reinforced plastic.
Calibration may be performed by means of an adjusting screw located on the top of the valve.
Pressure rating: PN-10
Sensitivity: 0.3 bar
Max. temperature: 70C
Weight: 0.322 kg
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Plastic - FC
3-W Differencial Flow Pilot Control
Valve Diameter 1"- 6D"
Application
The Plastic FC, 3-W differencial flow pilot, is a flow regulating pilot valve. The pilot can be used for flow regulating applications or together with model PC pilot in combined flow and pressure regulating applications. The pilot valve body is made of high quality reinforced plastic.
Calibration may be performed by means of an adjusting screw located on the top of the valve.
Pressure rating: PN-10
Sensitivity: 0.3 - 0.6 bar
Max. temperature: 70C
Regulating accuracy: 8% of flow rate
Weight: 0.3 kg
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Galit
3-W Plastic Solenoid
Valve Diameter 1"- 6D"
Application
The GALIT is equipped with 4 hydraulic connections and a manual operator.
It converts an external hydraulic command that controls the valve. It also enables a manual control of the valve.
The GALIT is suitable for remote opening and closing of hydraulic valves and can be configured as (N.O.) or (N.C.).
Pressure rating: PN-10
Sensitivity: 0.3 bar
Max. temperature: 90C
Weight: 0.64 kg
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Plastic Solenoid
3-W wp-8
Valve Diameter 1"- 6D"
Application
Raphael's plastic solenoid valves are mounted on PN-10 valves.
The Raphael's plastic solenoid valve has an electric coil responding to different currents and includes manual override.
Plastic solenoid valve bases are available with or without flange connection.
Pressure rating: PN-8
Max. pressure: 10 kg/cm2
Max. temperature: 80C
Weight: 0.103 kg
Power source: 110V, 220V (AC) & 9V, 12V, 24V (DC)
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Metal Solenoid
3-W wp-16
Valve Diameter 1"- 6D"
Application
The 3-W metal solenoid (N.C.) or (N.O.) is recommended for heavy duty applications where high performance is required.
The 3-W metal solenoid (N.C.) or (N.O.) can be used for industrial, irrigation control and automation systems.
Pressure rating: PN-16
Max. temperature: 80C
Weight: 0.267 kg
Power source: 110V, 220V (AC) & 9V, 12V, 24V (DC)
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P-161
2-W Pressure Reducing Pilot
Valve Diameter 1"- 14"
Application
The P-161, 2-W pilot, operates when hydraulic pressure is applied below the spring loaded membrane which is connected to the pilot's seal trim.
The P-161 is Normally Open (N.O.) pilot. Once pipeline pressure is built downstream of the main valve, it will be conveyed to the pilot's membrane through the sensor port. When the pressure surpasses the set point (pre adjusted thorugh the pilot's adjusting screw) the membrane moves upwards and water passage closes, closing the main valve. When the downstream pressure reduces below the pilot's set point, the membrane moves downwards and opening the water passage.
Pressure rating: PN-16
Regulation ratio: 5.1
Kv rate: 0.25 (l/sec)
Sensitivity: 0.1 bar
Max. temperature: 90C
Ports: 1/4"
Weight: 2.0 kg
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P-162
2-W Pressure Reducing Pilot
Valve Diameter 1"- 14"
Application
The P-162, 2-W pilot, operates when hydraulic pressure is applied below the spring loaded membrane which is connected to the pilot's seal trim.
The P-162 is Normally Open (N.O.) pilot. Once pipeline pressure is built downstream of the main valve, it will be conveyed to the pilot's membrane through the sensor port. When the pressure surpasses the set point (pre adjusted thorugh the pilot's adjusting screw) the membrane moves upwards and water passage closes, closing the main valve. When the downstream pressure reduces below the pilot's set point, the membrane moves downwards and opening the water passage and allowing the main valve to open.
Pressure rating: PN-16
Regulation ratio: 4.1
Kv rate: 0.25 (l/sec)
Sensitivity: 0.1 bar
Max. temperature: 90C
Ports: 1/4"
Weight: 0.75 kg
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P-181
2-W Pressure Sustaining/Relief Pilot
Valve Diameter 1"- 14"
Application
The P-181, 2-W pilot, operates when hydraulic pressure is applied below the spring loaded membrane which is connected to the pilot's seal trim.
The P-181 is Normally Closed (N.C.) pilot. When no pressure is applied below the spring loaded membrane, the pilot commands the main valve to close. When the pressure surpasses the set point, the membrane moves upwards and water passage opens, opening the main valve. When the downstream pressure reduces below the pilot's set point, the membrane moves downwards, closing the water passage.
During the pilot's operation water circulates constantly through the pilot, it provides an immediate response to any changes in pipeline pressure.
Pressure rating: PN-16
Regulation ratio: 5.1
Kv rate: 0.25 (l/sec)
Sensitivity: 0.1 bar
Max. temperature: 90C
Ports: 1/4"
Weight: 2.0 kg
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P-182
2-W Pressure Sustaining/Relief Pilot
Valve Diameter 1"- 14"
Application
The P-182, 2-W pilot, operates when hydraulic pressure is applied below the spring loaded membrane which is connected to the pilot's seal trim.
The P-182 is Normally Closed (N.C.) pilot. When no pressure is applied below the spring loaded membrane, the pilot commands the main valve to close. When the pressure surpasses the set point, the membrane moves upwards and water passage opens, opening the main valve. When the downstream pressure reduces below the pilot's set point, the membrane moves downwards, closing the water passage.
During the pilot's operation water circulates constantly through the pilot, it provides an immediate response to any changes in pipeline pressure.
Pressure rating: PN-16
Regulation ratio (sustaining): 4.1
Regulation ratio (relief): 7.1
Kv rate: 0.25 (l/sec)
Max. temperature: 90C
Ports: 1/4"
Weight: 0.75 kg
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P-683
3-W Pressure Sustaining/Reducing Pilot
Valve Diameter 1"- 14"
Application
The P-683 operates only if pipeline coniditons changes, when hydraulic pressure is applied below the spring loaded membrane, which is connected to the pilot's seal trim, alternating the pilot's water passage.
When the pilot reaches the desired set point, the seal trim locks all water passages, there is no water flow in the pilot and the pilot remains in this position until a change is the downstream pressure.
The P-683 can be used either as a Normally Open (N.O.) or Normally Close (N.C.)
N.O. Configuration
When the pressure head in the pilot's sensor port is lower than the set point, the membrane moves downwards, closing pressure supply to the control chamber and opening a water passage. Once pressure head is built, the membrane moves upwards opening the pressure supply to the control chamber and closing the pilot's vent, allowing the main valve to close.
Pressure rating: PN-16
Regulation ratio: 3.1
Kv rate: 0.25 (l/sec)
Max. temperature: 90C
Ports: 1/4"
Weight: 0.9 kg
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P-10
2-W Flow Level Pilot
Valve Diameter 1"- 6D"
Application
The P-10 is a flow pilot that is interconnected by a lever arm. When water level reaches its maximum level, the float rises, closing the water passage of the pilot and commands the main valve to close.
When water level drops, the float opens the water passage and main valve will open.
Every change in water level is conveyed to the pilot directly through the lever arm.
The pilot's water passage will open proportionally to the water level.
The P-10 is usually used to command level control valves in small and medium water reservoirs.
There is no need for energy other than line pressure; it offers an economic control solution.
Pressure rating: PN-10
Range: 10 cm
Kv rate: 0.45 (l/sec)
Sensitivity: 0.02 bar
Max. temperature: 90C
Ports: 1/2"
Weight: 1.2 kg
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P-100
2-W Differential Pilot
Valve Diameter 1"- 14"
Application
The P-100 is a Normally Open (N.O.) and a differential pilot. The P-100 operates when hydraulic pressure is applied below and above the spring loaded membrane which is connected to the pilot's seal trim. Upper and lower chambers of the pilot are connected to upstream and downstream sides of a calibrated orifice plate, used as a flow sensor. Differential pressure across the orifice changes with flow, and conveyed to the pilot through its sensing ports. When low pressure difference is presented across the orifice plate, the valve opens. When pressure difference increases, the valve tends to close, maintaining the requested flow.
Pressure rating: PN-16
Regulation Ratio: 3.1
Kv rate: 0.25 (l/sec)
Range: 10 cm
Sensitivity: 0.02 bar
Max. temperature: 90C
Ports: 1/4"
Weight: 2.0 kg
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S.V. Shuttle Valve
General Description
The shuttle valve is a 3-W hydraulic device, used to alternatively forward hydraulic command to the valve's control chamber from two different pressure supply devices. When the higher pressure is conveyed into the central connection from one end, the other end will be shut.
The shuttle valve is availabe in metal and plastic to fit PN-16 and PN-10 control applications.
Applications
The shuttle valve is specifically desinged to operate where two different hydraulic commands are present ina 3-W control system. Either remote operating and/or pilot control will alternatively operate by using the shuttle valve.
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BM - Needle Valve
General Description
The needle valve is used in control system to enable the pilot control of modulating applications and provide an opening and closing regulated speed. The needle valve is used when valve operating speed and sensitivity are essential for the control system. Raphael's needle valve has a heavy duty stainless steel seat and needle construction, enabling high sensitivity and maintenance free operation.
Application
Use the needle valve in 2-W control systems for modulation purposes. Also use the needle valve in 2-W and 3-W control systems to regulate the valve's opening and closing speed. The needle valve is specially designed for both PN-10 and PN-16 irrigation system. |
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FI - Finger Filter
General Description
The finger filter is a self flushing screen filter installed in the water inlet of the valve's control system.
It is used to prevent impurities from infiltrating into the control system and disturbing its operation by restricting, or even clogging, water passages.
Raphael's finger filter is desinged to be maintenance free, screwed into the valve's body sampling water from the main pipe. The finger filter will provide a safe water source into the control loop.
Application
The finger filter is ideally desinged for operation with RAF hydraulic control valve for irrigation applications as a main filter for the control system, for both PN-10 and PN-16 applications.
Use the FI finger filter in any control system to prevent eventaul malfunction due to impurities, installing it in the water intake to the control loop.
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SY- 3-way Cock Valve
General Description
The SY 3-W cock valve is a 3 port spherical valve, mounted on the valve's control chamber and used to change water passage between control chamber and 3 other optional ports. The SY is equipped with 4 connections<
1- Common port (unmarked) - always connected to the valve's control chamber.
2- "O"- connects the valve's control chamber to the open air and used to override the control system, manually opening the valve.
3- "C" - connects the valve's control chamber to the pressure supply and used to override the control system, manually closing the valve.
4- "A" - connects the valve's control chamber to the control system and used as the default operating position to be able to use the automatic control function of the application.
Application
Use SY 3-W cock valve with every RAF valve application where override option is necessary, enabling local opening and closing of the valve, regardless of the automatic control function command. The SY is desinged for both PN-10 and PN-16 control systems.
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BK- 2-way Ball Valve
General Description
The BK 2-way ball valve is a spherical valve used as isolating device in the valve's control loop.
The BK is desinged not to interfere in the routine operation of the control system, with minimum head-loss and maximized reliability.
Application
Use the BK 2-way ball valve as an isolation valve when the control system needs to be manipulated.
The BK will eliminate water passage from the main pipe line and enable manipulation and maintenance without the need to shut down the water in the main pipeline.
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