List of products by brand Cla-Val

CLA-VAL – Technical profile of an automatic control valve manufacturer

CLA-VAL is a manufacturer of automatic control valves for waterworks, fire protection, aviation fueling, marine and industrial applications. The official CLA-VAL product scope includes pressure reducing valves, relief valves, deluge valves, air valves and other automatic control valve solutions.

Most CLA-VAL automatic control valves are based on a main valve and a pilot control system. The pilot circuit senses pressure or flow conditions and modulates the main valve hydraulically.

Typical technical functions include:

  • pressure reducing,
  • pressure sustaining,
  • pressure relief,
  • level control,
  • flow control,
  • pump control,
  • surge anticipation,
  • deluge and fire protection control,
  • air release and vacuum relief.

Pressure reducing valves are used to maintain stable downstream pressure in water distribution systems. Pressure sustaining valves maintain upstream pressure. Relief and surge valves protect pipelines from transient overpressure.

In fire protection systems, CLA-VAL products may include UL / ULC listed and FM approved fire protection valves, depending on the model and application.

Selection requires:

  • inlet and outlet pressure,
  • flow range,
  • minimum and maximum demand,
  • valve size and cavitation risk,
  • pilot system configuration,
  • water quality,
  • surge conditions,
  • installation orientation,
  • bypass and isolation arrangement,
  • commissioning procedure.

For waterworks engineers, fire protection engineers and utility operators, CLA-VAL valves should be evaluated as hydraulic control assemblies, not as simple isolation valves.

Hydraulic Pressure Control Valves - 50-33 & 650-33 Back Pressure Shutoff Safety Valve with Manual Reset | Cla-Val | Philippop...

Hydraulic Pressure Control Valves - 50-33 & 650-33 Back Pressure Shutoff Safety Valve with Manual Reset | Cla-Val

Hydraulic Pressure Control Valves - 50-33 & 650-33 Back Pressure Shutoff Safety Valve with Manual Reset | Cla-Val
Cla-Val
Cla-Val 50-33 / 650-33 Hydraulic pressure shut-off safety valve with manual reset. Designed to protect downstream installations when outlet pressure from a primary PRV exceeds the specified limit. Provides positive isolation rather than pressure relief. Operation The valve continuously monitors downstream pressure. If the setpoint is exceeded, it closes...
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Hydraulic Pressure Control Valves - 750-01 Pressure Relief, Sustaining & Back Pressure Valve | Cla-Val | Philippopoulos s.a.

Hydraulic Pressure Control Valves - 750-01 Pressure Relief, Sustaining & Back Pressure Valve | Cla-Val

Hydraulic Pressure Control Valves - 750-01 Pressure Relief, Sustaining & Back Pressure Valve | Cla-Val
Cla-Val
Cla-Val 750-01 The Cla-Val 750-01 is a pilot-operated, modulating hydraulic relief, backpressure, and pressure sustaining valve for water distribution networks. The valve maintains upstream pressure by modulating flow through a pilot control circuit, without requiring external power. Operation When inlet (upstream) pressure exceeds the set point, the...
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Hydraulic Pressure Control Valves - 250-01 & 605-01 Differential Pressure Relief Valve | Cla-Val | Philippopoulos s.a.

Hydraulic Pressure Control Valves - 250-01 & 605-01 Differential Pressure Relief Valve | Cla-Val

Hydraulic Pressure Control Valves - 250-01 & 605-01 Differential Pressure Relief Valve | Cla-Val
Cla-Val
Cla-Val 250-01 / 605-01 Pilot-operated, modulating differential pressure relief valve. Maintains a constant differential pressure between two network points. The valve opens as differential pressure rises above setpoint and closes as it drops below. Applications Centrifugal pump circuits Chilled water networks / closed-loop HVAC systems Pump by-pass for...
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Hydraulic Pressure Control Valves - 550-01 & 6550-01 Pressure Relief & Sustaining Valve | Cla-Val | Philippopoulos s.a.

Hydraulic Pressure Control Valves - 550-01 & 6550-01 Pressure Relief & Sustaining Valve | Cla-Val

Hydraulic Pressure Control Valves - 550-01 & 6550-01 Pressure Relief & Sustaining Valve | Cla-Val
Cla-Val
Cla-Val 550-01 / 6550-01 Hydraulic pressure relief and sustaining valve for water distribution networks. Designed for relief, sustaining, back pressure, and unloading functions. Pilot-operated and modulating, with upstream pressure control. Suitable for potable and industrial water. Compatible with standard water treatment chemicals. Typical pressure...
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Hydraulic Pressure Control Valves - 552-01 & 6552-01 Pressure Relief & Sustaining Valve | Cla-Val | Philippopoulos s.a.

Hydraulic Pressure Control Valves - 552-01 & 6552-01 Pressure Relief & Sustaining Valve | Cla-Val

Hydraulic Pressure Control Valves - 552-01 & 6552-01 Pressure Relief & Sustaining Valve | Cla-Val
Cla-Val
Cla-Val 552-01 / 6552-01 Hydraulic pressure relief and sustaining valve for water distribution systems, featuring ANSI flanged connections in 150 / 300 lbs pressure classes. Construction available in ASTM A182 316L stainless steel, suitable for applications requiring corrosion-resistant wetted parts and compliance with industrial standards. Operation The...
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Hydraulic Pressure Control Valves - 98-06 & 698-06 Hydraulic Water Saving Control Valve | Cla-Val | Philippopoulos s.a.

Hydraulic Pressure Control Valves - 98-06 & 698-06 Hydraulic Water Saving Control Valve | Cla-Val

Hydraulic Pressure Control Valves - 98-06 & 698-06 Hydraulic Water Saving Control Valve | Cla-Val
Cla-Val
Cla-Val 98-06 / 698-06 Hydraulic water-saving control valve with two downstream set points. Maintains higher downstream pressure during peak demand and reduces pressure during low demand periods, such as at night, to minimize leakage and pipe stress. Operation The pilot circuit alternates between two downstream pressure settings. The low set point reduces...
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Hydraulic Pressure Control Valves - 390-07 & 3690-07 Electronic Pressure Reducing Valve with Manual Bypass | Cla-Val | Philip...

Hydraulic Pressure Control Valves - 390-07 & 3690-07 Electronic Pressure Reducing Valve with Manual Bypass | Cla-Val

Hydraulic Pressure Control Valves - 390-07 & 3690-07 Electronic Pressure Reducing Valve with Manual Bypass | Cla-Val
Cla-Val
Cla-Val 390-07 / 3690-07 Electronically controlled, pilot-operated hydraulic pressure reducing valve with manual bypass. Maintains downstream pressure at a preset setpoint, independent of upstream pressure or flow fluctuations, within sizing limits. Designed for water and compatible fluids in industrial and municipal networks. Operation Main valve is...
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Hydraulic Pressure Control Valves - 139-10 & 639-10 Programmable Timer Control Valve | Cla-Val | Philippopoulos s.a.

Hydraulic Pressure Control Valves - 139-10 & 639-10 Programmable Timer Control Valve | Cla-Val

Hydraulic Pressure Control Valves - 139-10 & 639-10 Programmable Timer Control Valve | Cla-Val
Cla-Val
Cla-Val 139-10 / 639-10 with Timer Control Hydraulic on-off control valve for water distribution networks, featuring scheduled open/close operation. Utilizes the CTC-33 electronic timer, suitable for remote installations without SCADA integration. Operation Valve actuates according to a weekly schedule. The CTC-33 supports up to 4 open/close cycles per...
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Electronic Pressure Control Valve - 139-10 & 639-10 | Cla-Val | Philippopoulos s.a.

Electronic Pressure Control Valve - 139-10 & 639-10 | Cla-Val

Electronic Pressure Control Valve - 139-10 & 639-10 | Cla-Val
Cla-Val
Cla-Val 139-10 / 639-10 Hydraulically actuated, diaphragm-type control valve with pilot control, designed for electronic operation in water distribution networks. Solenoid pilots are actuated by electrical signals from the VC-22D controller, charging or venting the cover chamber to open or close the main valve. Process Operation Used where remote control...
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Electronic Pressure Interface Control Valve - 131-22 & 631-22 | Cla-Val | Philippopoulos s.a.

Electronic Pressure Interface Control Valve - 131-22 & 631-22 | Cla-Val

Electronic Pressure Interface Control Valve - 131-22 & 631-22 | Cla-Val
Cla-Val
Cla-Val 131-22 / 631-22 – Electronic Interface Control Valve Cla-Val 131-22 and 631-22 are hydraulically actuated diaphragm valves with pilot control and electronic interface. Open/close operation is achieved via two solenoid pilots that charge or vent the cover chamber of the main valve. This configuration enables remote or automated process control...
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Electronic Pressure Control Valve with VC-22D Controller - 131-66 & 631-66 | Cla-Val | Philippopoulos s.a.

Electronic Pressure Control Valve with VC-22D Controller - 131-66 & 631-66 | Cla-Val

Electronic Pressure Control Valve with VC-22D Controller - 131-66 & 631-66 | Cla-Val
Cla-Val
Cla-Val 131-66 / 631-66 with VC-22D The Cla-Val 131-66 and 631-66 are hydraulically actuated, pilot-operated diaphragm valves designed for electronic pressure control in water distribution systems. The VC-22D controller sends commands to solenoid pilots, which modulate the pressure in the cover chamber, causing the main valve to open or close...
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Electronic Interface Pressure Control Valve for Industrial Service - 131-73 & 631-73 | Cla-Val | Philippopoulos s.a.

Electronic Interface Pressure Control Valve for Industrial Service - 131-73 & 631-73 | Cla-Val

Electronic Interface Pressure Control Valve for Industrial Service - 131-73 & 631-73 | Cla-Val
Cla-Val
Cla-Val 131-73 / 631-73 – Electronic Interface Control Valve The Cla-Val 131-73 and 631-73 are diaphragm actuated control valves with electronic interface, designed for industrial applications where line pressure is insufficient or the process fluid is unsuitable for direct pilot operation. Actuation is achieved via independent air supply, applied or...
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Hydraulic Rate of Flow Control Valve - 40-01 & 640-01 | Cla-Val | Philippopoulos s.a.

Hydraulic Rate of Flow Control Valve - 40-01 & 640-01 | Cla-Val

Hydraulic Rate of Flow Control Valve - 40-01 & 640-01 | Cla-Val
Cla-Val
Cla-Val 40-01 / 640-01 – Hydraulic Flow Control Valve The Cla-Val 40-01 / 640-01 is designed to hydraulically limit water flow to a preset maximum, independent of line pressure fluctuations. This is a pilot-operated, diaphragm-actuated valve. The pilot receives a differential pressure signal from an orifice plate installed downstream and modulates the...
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Hydraulic Rate of Flow & Pressure Reducing Valve - 49-01 & 649-01 | Cla-Val | Philippopoulos s.a.

Hydraulic Rate of Flow & Pressure Reducing Valve - 49-01 & 649-01 | Cla-Val

Hydraulic Rate of Flow & Pressure Reducing Valve - 49-01 & 649-01 | Cla-Val
Cla-Val
Cla-Val 49-01 / 649-01 – Flow Control & Downstream Pressure Reduction The Cla-Val 49-01 / 649-01 is a hydraulically operated, pilot-controlled diaphragm valve designed for simultaneous downstream pressure reduction and maximum flow limitation. It is specified where downstream demand must be regulated without overloading the supply network. Operating...
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Hydraulic Rate of Flow & Pressure Sustaining Valve - 40-25 & 640-25 | Cla-Val | Philippopoulos s.a.

Hydraulic Rate of Flow & Pressure Sustaining Valve - 40-25 & 640-25 | Cla-Val

Hydraulic Rate of Flow & Pressure Sustaining Valve - 40-25 & 640-25 | Cla-Val
Cla-Val
Cla-Val 40-25 / 640-25 – Flow Control & Upstream Pressure Sustaining Valve The Cla-Val 40-25 / 640-25 is a hydraulically operated, diaphragm-actuated, pilot-controlled valve designed for applications requiring downstream flow limitation while maintaining upstream supply pressure above a preset threshold. Control Function This valve integrates two control...
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Hydraulic Rate of Flow Controller & Solenoid Shut-Off Valve - 43-01 & 643-01 | Cla-Val | Philippopoulos s.a.

Hydraulic Rate of Flow Controller & Solenoid Shut-Off Valve - 43-01 & 643-01 | Cla-Val

Hydraulic Rate of Flow Controller & Solenoid Shut-Off Valve - 43-01 & 643-01 | Cla-Val
Cla-Val
Cla-Val 43-01 / 643-01 – Flow Control Valve with Electromagnetic Shutoff The Cla-Val 43-01 / 643-01 is a hydraulically operated, diaphragm-actuated, pilot-controlled valve designed for maximum flow limitation and remote electrical shutoff. Flow regulation is achieved via differential pressure across an orifice plate installed downstream of the valve. The...
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Hydraulic Flow Control Valves - X52E Orifice Plate Assembly | Cla-Val | Philippopoulos s.a.

Hydraulic Flow Control Valves - X52E Orifice Plate Assembly | Cla-Val

Hydraulic Flow Control Valves - X52E Orifice Plate Assembly | Cla-Val
Cla-Val
Cla-Val X52E – Orifice Plate Assembly The Cla-Val X52E is an orifice plate assembly designed for use with Cla-Val hydraulic flow control valves. It does not independently regulate flow; instead, it generates a predictable pressure drop, providing a stable differential signal to the main valve’s pilot circuit for accurate flow control. Functional Role...
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Electronic Metering Valve - 133-01 & 633-01 | Cla-Val | Philippopoulos s.a.

Electronic Metering Valve - 133-01 & 633-01 | Cla-Val

Electronic Metering Valve - 133-01 & 633-01 | Cla-Val
Cla-Val
Cla-Val 133-01 / 633-01 Electronic Dosing Control Valve The Cla-Val 133-01 / 633-01 is a hydraulically actuated diaphragm valve designed for dosing and flow control in water distribution systems. It integrates with the VC-22D controller and is specified for applications requiring local or SCADA-based setpoint adjustment, with differential operating...
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Electronic Multi-Function Electronic Interface Valve - 133-AV | Cla-Val | Philippopoulos s.a.

Electronic Multi-Function Electronic Interface Valve - 133-AV | Cla-Val

Electronic Multi-Function Electronic Interface Valve - 133-AV | Cla-Val
Cla-Val
Cla-Val 133-AV Electronic Interface Control Valve The Cla-Val 133-AV is a hydraulically actuated control valve for water distribution networks, equipped with the VC-22D electronic interface. The system enables calculation or closed-loop control of flow, valve position, or pressure, utilizing the X117D position transmitter and X141-PT pressure transmitter....
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Electronic Multi-Function Electronic Interface Valve - 133-AW | Cla-Val | Philippopoulos s.a.

Electronic Multi-Function Electronic Interface Valve - 133-AW | Cla-Val

Electronic Multi-Function Electronic Interface Valve - 133-AW | Cla-Val
Cla-Val
Cla-Val 133-AW Multifunction Electronic Interface Valve The Cla-Val 133-AW is a hydraulically operated water control valve equipped with the VC-22D electronic controller. It monitors or calculates flow, valve position, and pressure using feedback from the X117 position transmitter and X141-PT pressure transmitter. In the event of power loss, the valve is...
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Electronic Solenoid Control Valve - 136-01 & 636-01 | Cla-Val | Philippopoulos s.a.

Electronic Solenoid Control Valve - 136-01 & 636-01 | Cla-Val

Electronic Solenoid Control Valve - 136-01 & 636-01 | Cla-Val
Cla-Val
Cla-Val 136-01 / 636-01 Electromagnetic On-Off Valve The Cla-Val 136-01 / 636-01 is a hydraulically actuated water control valve, utilizing a Hytrol main valve and a three-way solenoid pilot. Operation is on-off: the valve opens or closes in response to an electrical signal at the solenoid pilot. Operating Principle The three-way solenoid assembly...
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Electronic Rate of Flow Valve - 340-07 & 3640-07 | Cla-Val | Philippopoulos s.a.

Electronic Rate of Flow Valve - 340-07 & 3640-07 | Cla-Val

Electronic Rate of Flow Valve - 340-07 & 3640-07 | Cla-Val
Cla-Val
Cla-Val 340-07 / 3640-07 Electronic Flow Control Valve The Cla-Val 340-07 / 3640-07 is a pilot-operated flow control valve for water distribution networks. It limits flow to a preset maximum value, independent of upstream pressure fluctuations, within a 4:1 control ratio. Operating Principle The system uses a precision orifice plate to generate...
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Electronic Solenoid Control Valve - 136-03 & 636-03 | Cla-Val | Philippopoulos s.a.

Electronic Solenoid Control Valve - 136-03 & 636-03 | Cla-Val

Electronic Solenoid Control Valve - 136-03 & 636-03 | Cla-Val
Cla-Val
Cla-Val 136-03 / 636-03 Electromagnetic On-Off Valve The Cla-Val 136-03 / 636-03 is a hydraulically actuated control valve for water, featuring a Hytrol main valve, a three-way solenoid pilot, and a high-capacity pilot valve. It operates as an on-off valve: the main valve fully opens or closes in response to an electrical signal at the solenoid pilot....
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Hydraulic Booster Pump Control Valve with High-Capacity Solenoid - 60-BY & 660-BY | Cla-Val | Philippopoulos s.a.

Hydraulic Booster Pump Control Valve with High-Capacity Solenoid - 60-BY & 660-BY | Cla-Val

Hydraulic Booster Pump Control Valve with High-Capacity Solenoid - 60-BY & 660-BY | Cla-Val
Cla-Val
Cla-Val 60-BY / 660-BY – Booster Pump Control Valve The Cla-Val 60-BY / 660-BY is a pilot-operated valve designed for installation on the discharge side of booster pumps. It utilizes a high-capacity CSM11-HC solenoid pilot for controlled opening/closing and to limit hydraulic transients during pump start and stop sequences. Operating Sequence Pump startup...
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