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 - 90-01 & 690-01 Pressure Reducing Valve | Cla-Val | Philippopoulos s.a.

Hydraulic Pressure Control Valves - 90-01 & 690-01 Pressure Reducing Valve | Cla-Val

Hydraulic Pressure Control Valves - 90-01 & 690-01 Pressure Reducing Valve | Cla-Val
Cla-Val
Cla-Val 90-01 / 690-01 Hydraulic pressure reducing valve for water distribution networks. Reduces higher upstream pressure to a stable, lower downstream setpoint, independent of inlet pressure or flow fluctuations, within sizing limits. Operation Pilot-operated regulator. When downstream pressure exceeds the pilot setpoint, both the main valve and pilot...
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Hydraulic Pressure Control Valves - 90-01KO & 690-01KO Anti-Cavitation Pressure Reducing Valve | Cla-Val | Philippopoulos s.a.

Hydraulic Pressure Control Valves - 90-01KO & 690-01KO Anti-Cavitation Pressure Reducing Valve | Cla-Val

Hydraulic Pressure Control Valves - 90-01KO & 690-01KO Anti-Cavitation Pressure Reducing Valve | Cla-Val
Cla-Val
Cla-Val 90-01KO / 690-01KO Hydraulic anti-cavitation pressure reducing valve. Designed to reduce high upstream pressure to a stable, lower downstream pressure. KO anti-cavitation trim minimizes cavitation, noise, and internal component wear in high ΔP applications. Operation Pilot-operated, modulating control. The reducing pilot regulates downstream...
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Hydraulic Pressure Control Valves - 92-01 & 692-01 Pressure Reducing & Sustaining Valve | Cla-Val | Philippopoulos s.a.

Hydraulic Pressure Control Valves - 92-01 & 692-01 Pressure Reducing & Sustaining Valve | Cla-Val

Hydraulic Pressure Control Valves - 92-01 & 692-01 Pressure Reducing & Sustaining Valve | Cla-Val
Cla-Val
Cla-Val 92-01 / 692-01 Combined hydraulic pressure reducing and sustaining valve for water distribution networks. Performs two independent functions: maintains constant downstream pressure and sustains a minimum upstream pressure setpoint. Operation The reducing pilot regulates outlet pressure. The sustaining pilot restricts valve opening if upstream...
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Hydraulic Pressure Control Valves - 92-07 & 692-07 Pressure Reducing, Sustaining & Solenoid Valve | Cla-Val | Philippopoulos ...

Hydraulic Pressure Control Valves - 92-07 & 692-07 Pressure Reducing, Sustaining & Solenoid Valve | Cla-Val

Hydraulic Pressure Control Valves - 92-07 & 692-07 Pressure Reducing, Sustaining & Solenoid Valve | Cla-Val
Cla-Val
Cla-Val 92-07 / 692-07 Combined hydraulic control valve for pressure reducing, upstream pressure sustaining, and solenoid-actuated shutoff. Performs three functions: maintains constant downstream pressure, protects minimum upstream pressure, and enables remote tight shutoff via solenoid override. Operation The reducing pilot regulates downstream setpoint....
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Hydraulic Pressure Control Valves - 93-01 & 693-01 Pressure Reducing & Solenoid Shut-Off Valve | Cla-Val | Philippopoulos s.a.

Hydraulic Pressure Control Valves - 93-01 & 693-01 Pressure Reducing & Solenoid Shut-Off Valve | Cla-Val

Hydraulic Pressure Control Valves - 93-01 & 693-01 Pressure Reducing & Solenoid Shut-Off Valve | Cla-Val
Cla-Val
Cla-Val 93-01 / 693-01 Hydraulic pressure reducing valve with solenoid-actuated shut-off. Maintains stable downstream pressure and enables remote isolation via solenoid control. Operation The reducing pilot regulates downstream pressure. If downstream pressure exceeds the setpoint, the main valve throttles or closes. Electrical actuation of the solenoid...
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Hydraulic Pressure Control Valves - 90-05 & 690-05 Pressure Reducing Valve with Return Flow | Cla-Val | Philippopoulos s.a.

Hydraulic Pressure Control Valves - 90-05 & 690-05 Pressure Reducing Valve with Return Flow | Cla-Val

Hydraulic Pressure Control Valves - 90-05 & 690-05 Pressure Reducing Valve with Return Flow | Cla-Val
Cla-Val
Cla-Val 90-05 / 690-05 Hydraulic pressure reducing valve with integrated reverse flow capability. Maintains stable downstream pressure and allows reverse flow when outlet pressure exceeds inlet pressure. Suitable for water and compatible fluids in municipal, industrial, and process systems. Operation Main valve is a pilot-operated regulator. The reducing...
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Hydraulic Pressure Control Valves - 90-48 & 690-48 Pressure Reducing Valve with Low Flow Bypass | Cla-Val | Philippopoulos s.a.

Hydraulic Pressure Control Valves - 90-48 & 690-48 Pressure Reducing Valve with Low Flow Bypass | Cla-Val

Hydraulic Pressure Control Valves - 90-48 & 690-48 Pressure Reducing Valve with Low Flow Bypass | Cla-Val
Cla-Val
Cla-Val 90-48 / 690-48 Hydraulic pressure reducing valve with integrated low-flow bypass. Reduces upstream pressure to a stable downstream setpoint, maintaining control even when demand drops below the main valve’s effective control range. Operation The main valve is pilot-operated via a pressure reducing pilot. For low flow conditions, an integrated...
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Hydraulic Pressure Control Valves - 590-01 & 6590-01 Pressure Reducing Valve | Cla-Val | Philippopoulos s.a.

Hydraulic Pressure Control Valves - 590-01 & 6590-01 Pressure Reducing Valve | Cla-Val

Hydraulic Pressure Control Valves - 590-01 & 6590-01 Pressure Reducing Valve | Cla-Val
Cla-Val
Cla-Val 590-01 / 6590-01 Hydraulic pressure reducing valve for water distribution networks. Maintains a constant downstream pressure regardless of upstream pressure or flow fluctuations, within sizing limits. Operation Main valve is pilot-operated and modulating. The pressure reducing pilot regulates the valve chamber, adjusting the opening to keep...
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Hydraulic Pressure Control Valves - 94-01 & 694-01 Pressure Reducing & Surge Control Valve | Cla-Val | Philippopoulos s.a.

Hydraulic Pressure Control Valves - 94-01 & 694-01 Pressure Reducing & Surge Control Valve | Cla-Val

Hydraulic Pressure Control Valves - 94-01 & 694-01 Pressure Reducing & Surge Control Valve | Cla-Val
Cla-Val
Cla-Val 94-01 / 694-01 Hydraulic pressure reducing valve with surge control pilot. Designed to reduce upstream pressure to a stable downstream setpoint and activate the surge pilot if downstream pressure rises rapidly above the set value. Operation The reducing pilot maintains downstream pressure regulation. In the event of a rapid downstream pressure...
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Hydraulic Pressure Control Valves - 95-01 & 695-01 Ratio Reduction Control Valve | Cla-Val | Philippopoulos s.a.

Hydraulic Pressure Control Valves - 95-01 & 695-01 Ratio Reduction Control Valve | Cla-Val

Hydraulic Pressure Control Valves - 95-01 & 695-01 Ratio Reduction Control Valve | Cla-Val
Cla-Val
Cla-Val 95-01 / 695-01 Hydraulic ratio pressure reducing valve. Reduces upstream pressure to a lower downstream pressure at a fixed ratio, within a defined flow range. Features dual control chambers for precise diaphragm actuation. Operation Downstream pressure is not regulated to an absolute set point as with standard PRVs. Instead, downstream pressure...
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Hydraulic Pressure Control Valves - 90-37 & 690-37 Pressure Reducing Valve | Cla-Val | Philippopoulos s.a.

Hydraulic Pressure Control Valves - 90-37 & 690-37 Pressure Reducing Valve | Cla-Val

Hydraulic Pressure Control Valves - 90-37 & 690-37 Pressure Reducing Valve | Cla-Val
Cla-Val
Cla-Val 90-37 / 690-37 Hydraulic pressure reducing valve for water distribution networks. Reduces higher upstream pressure to a stable, lower downstream pressure, independent of inlet pressure or flow fluctuations. Operation Operates hydraulically, without electrical supply. The pilot circuit modulates the main valve opening to maintain downstream...
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Hydraulic Pressure Control Valves - 90-99 Pressure Reducing Valve with Low Flow Bypass | Cla-Val | Philippopoulos s.a.

Hydraulic Pressure Control Valves - 90-99 Pressure Reducing Valve with Low Flow Bypass | Cla-Val

Hydraulic Pressure Control Valves - 90-99 Pressure Reducing Valve with Low Flow Bypass | Cla-Val
Cla-Val
Cla-Val 90-99 Hydraulic pressure reducing valve with integrated low-flow bypass. Reduces higher upstream pressure to a stable, lower downstream setpoint, independent of flow fluctuations within sizing limits. Operation The main valve operates as a pilot-operated PRV. Low-flow bypass is achieved via an integrated Cla-Val 90-01 2” grooved end valve,...
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Hydraulic Pressure Control Valves - 94-22 & 694-22 Pressure Reducing, Sustaining & Surge Valve | Cla-Val | Philippopoulos s.a.

Hydraulic Pressure Control Valves - 94-22 & 694-22 Pressure Reducing, Sustaining & Surge Valve | Cla-Val

Hydraulic Pressure Control Valves - 94-22 & 694-22 Pressure Reducing, Sustaining & Surge Valve | Cla-Val
Cla-Val
Cla-Val 94-22 / 694-22 Hydraulic control valve for downstream pressure reduction, upstream pressure sustaining, and hydraulic surge relief. Integrates downstream pressure control, upstream sustaining, and surge relief in a single pilot-operated assembly. Suitable for potable water, process water, and compatible industrial fluids. Typical pressure classes:...
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Hydraulic Pressure Control Valves - 94-58 & 694-58 Pressure Reducing & Surge Control Valve with Override | Cla-Val | Philippo...

Hydraulic Pressure Control Valves - 94-58 & 694-58 Pressure Reducing & Surge Control Valve with Override | Cla-Val

Hydraulic Pressure Control Valves - 94-58 & 694-58 Pressure Reducing & Surge Control Valve with Override | Cla-Val
Cla-Val
Cla-Val 94-58 / 694-58 Hydraulic pressure reducing valve with surge control and override capability. Maintains downstream pressure at a setpoint and allows external override input to the pilot circuit for specific operational scenarios. Operation The reducing pilot regulates outlet pressure to the specified setpoint. The surge pilot responds to rapid...
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Hydraulic Pressure Control Valves - 790-01 Pressure Reducing Valve | Cla-Val | Philippopoulos s.a.

Hydraulic Pressure Control Valves - 790-01 Pressure Reducing Valve | Cla-Val

Hydraulic Pressure Control Valves - 790-01 Pressure Reducing Valve | Cla-Val
Cla-Val
Cla-Val 790-01 Hydraulic pressure reducing valve for water distribution networks. Downstream pressure is controlled via a pilot circuit, modulating the main valve opening in response to demand fluctuations. Operation The pressure reducing pilot compares downstream pressure to the setpoint. If downstream pressure rises above setpoint, the valve throttles...
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Hydraulic Pressure Control Valves - 50-01 & 650-01 Pressure Relief & Sustaining Valve | Cla-Val | Philippopoulos s.a.

Hydraulic Pressure Control Valves - 50-01 & 650-01 Pressure Relief & Sustaining Valve | Cla-Val

Hydraulic Pressure Control Valves - 50-01 & 650-01 Pressure Relief & Sustaining Valve | Cla-Val
Cla-Val
Cla-Val 50-01 / 650-01 Hydraulically operated, pilot-controlled modulating pressure relief and sustaining valve. Maintains a preset upstream pressure and opens progressively when inlet pressure exceeds the set point. Used as a pressure relief, pressure sustaining, back pressure, or unloading valve in bypass lines. Operation Line pressure is sensed by the...
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Hydraulic Pressure Control Valves - 50-01KO Anti-Cavitation Pressure Relief & Sustaining Valve | Cla-Val | Philippopoulos s.a.

Hydraulic Pressure Control Valves - 50-01KO Anti-Cavitation Pressure Relief & Sustaining Valve | Cla-Val

Hydraulic Pressure Control Valves - 50-01KO Anti-Cavitation Pressure Relief & Sustaining Valve | Cla-Val
Cla-Val
Cla-Val 50-01KO Hydraulic pressure relief and sustaining valve with KO anti-cavitation trim. Pilot-operated, modulating type, designed to maintain a stable upstream pressure. Used for pressure relief, sustaining, back pressure, or unloading functions in by-pass lines. Suitable for water and compatible process fluids. When to Specify KO Trim The KO version...
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Hydraulic Pressure Control Valves - 350-07 & 3650-07 Electronic Pressure Sustaining Control w/Manual Bypass | Cla-Val | Phili...

Hydraulic Pressure Control Valves - 350-07 & 3650-07 Electronic Pressure Sustaining Control w/Manual Bypass | Cla-Val

Hydraulic Pressure Control Valves - 350-07 & 3650-07 Electronic Pressure Sustaining Control w/Manual Bypass | Cla-Val
Cla-Val
Cla-Val 350-07 / 3650-07 Electronically controlled, pilot-operated hydraulic pressure sustaining valve with manual bypass. Designed for upstream pressure regulation in process and utility water systems. Functions as a pressure sustaining, back pressure, or unloading valve in by-pass lines. Modulating operation maintains stable upstream pressure under...
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Hydraulic Pressure Control Valves - 52-03 & 652-03 Pressure Relief & Surge Anticipator Valve | Cla-Val | Philippopoulos s.a.

Hydraulic Pressure Control Valves - 52-03 & 652-03 Pressure Relief & Surge Anticipator Valve | Cla-Val

Hydraulic Pressure Control Valves - 52-03 & 652-03 Pressure Relief & Surge Anticipator Valve | Cla-Val
Cla-Val
Cla-Val 52-03 / 652-03 Hydraulic surge anticipation and pressure relief valve for pump stations and pressurized pipelines. Designed to protect pumps, piping, and associated equipment from transient overpressure events caused by rapid changes in flow velocity (hydraulic surge/water hammer). Operation The valve opens in a controlled manner when surge...
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Hydraulic Pressure Control Valves - 58-01 & 658-01 Back Pressure & Solenoid Shut-Off Valve | Cla-Val | Philippopoulos s.a.

Hydraulic Pressure Control Valves - 58-01 & 658-01 Back Pressure & Solenoid Shut-Off Valve | Cla-Val

Hydraulic Pressure Control Valves - 58-01 & 658-01 Back Pressure & Solenoid Shut-Off Valve | Cla-Val
Cla-Val
Cla-Val 58-01 / 658-01 Hydraulic back pressure valve with solenoid shut-off capability. Combines back pressure/sustaining control with remote electrical shut-off via solenoid actuator. Pressure setpoint is hydraulically regulated; the solenoid enables remote closure command. Suitable for water and compatible process fluids. Typical pressure classes:...
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Hydraulic Pressure Control Valves - 52-01 & 652-01 Pressure Relief & Surge Anticipator Valve | Cla-Val | Philippopoulos s.a.

Hydraulic Pressure Control Valves - 52-01 & 652-01 Pressure Relief & Surge Anticipator Valve | Cla-Val

Hydraulic Pressure Control Valves - 52-01 & 652-01 Pressure Relief & Surge Anticipator Valve | Cla-Val
Cla-Val
Cla-Val 52-01 / 652-01 Hydraulic pressure relief and surge anticipation valve. Designed to protect pumps, discharge pipelines, and associated equipment from transient hydraulic events caused by rapid changes in flow velocity. Operation The valve opens in response to a pressure drop that precedes the arrival of a surge wave following abrupt pump shutdown....
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Hydraulic Pressure Control Valves - 50-90 & 650-90 Pressure Sustaining Valve | Cla-Val | Philippopoulos s.a.

Hydraulic Pressure Control Valves - 50-90 & 650-90 Pressure Sustaining Valve | Cla-Val

Hydraulic Pressure Control Valves - 50-90 & 650-90 Pressure Sustaining Valve | Cla-Val
Cla-Val
Cla-Val 50-90 / 650-90 Hydraulic, pilot-operated, modulating pressure sustaining valve. Maintains a preset upstream pressure and is used for pressure sustaining, pressure relief, back pressure, or unloading (by-pass) applications in fluid handling systems. Operation The valve modulates open only as required to maintain the set upstream pressure. In...
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Hydraulic Pressure Control Valves - 55B-60 Pressure Relief Valve | Cla-Val | Philippopoulos s.a.

Hydraulic Pressure Control Valves - 55B-60 Pressure Relief Valve | Cla-Val

Hydraulic Pressure Control Valves - 55B-60 Pressure Relief Valve | Cla-Val
Cla-Val
Cla-Val 55B-60 Hydraulic pressure relief valve for water distribution networks. Designed for controlled pressure discharge when line pressure exceeds the setpoint. Modulating operation is based on network pressure, with no electrical supply required. Suitable for industrial and municipal water systems. Operation When inlet pressure rises above the set...
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Hydraulic Pressure Control Valves - 50-05 & 650-05 Pressure Relief, Air Release & Vacuum Breaker Valve | Cla-Val | Philippopo...

Hydraulic Pressure Control Valves - 50-05 & 650-05 Pressure Relief, Air Release & Vacuum Breaker Valve | Cla-Val

Hydraulic Pressure Control Valves - 50-05 & 650-05 Pressure Relief, Air Release & Vacuum Breaker Valve | Cla-Val
Cla-Val
Cla-Val 50-05 / 650-05 Hydraulic pressure relief, air release, and vacuum breaker valve designed for deep well and pump station applications. Used during pump start-up and shutdown to mitigate hydraulic surge, prevent air entrapment, and avoid vacuum formation in pipelines. Operation At pump start-up, the valve remains open to discharge air from the pump...
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