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 Booster Pump Control Valve - 60-11 & 660-11 | Cla-Val | Philippopoulos s.a.

Hydraulic Booster Pump Control Valve - 60-11 & 660-11 | Cla-Val

Hydraulic Booster Pump Control Valve - 60-11 & 660-11 | Cla-Val
Cla-Val
Cla-Val 60-11 / 660-11 – Pump Discharge Booster Control Valve The Cla-Val 60-11 / 660-11 is a pilot-operated control valve designed for installation on the discharge side of booster pumps. It utilizes line pressure for actuation and is engineered to minimize hydraulic transients during pump start-up and shutdown sequences. Operating Sequence The pump...
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Hydraulic Booster Pump Control Valve - 60-73 & 660-73 | Cla-Val | Philippopoulos s.a.

Hydraulic Booster Pump Control Valve - 60-73 & 660-73 | Cla-Val

Hydraulic Booster Pump Control Valve - 60-73 & 660-73 | Cla-Val
Cla-Val
Cla-Val 60-73 / 660-73 – Pump Booster Control Valve The Cla-Val 60-73 / 660-73 is a pilot-operated pump discharge control valve designed for booster pump applications. Operation is based on a solenoid valve, shuttle valve, and integrated lift-type check valve, providing controlled pump start and stop sequencing. Operation The pump starts with the valve...
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Hydraulic Pump Control & Back Pressure Valve - 60-32 & 660-32 | Cla-Val | Philippopoulos s.a.

Hydraulic Pump Control & Back Pressure Valve - 60-32 & 660-32 | Cla-Val

Hydraulic Pump Control & Back Pressure Valve - 60-32 & 660-32 | Cla-Val
Cla-Val
Cla-Val 60-32 / 660-32 – Pump Control Valve with Back Pressure The Cla-Val 60-32 / 660-32 is a pilot-operated pump discharge control valve designed for booster pump applications. It integrates pump start/stop sequencing with adjustable back pressure regulation during operation. Operation When the pump is offline, the valve remains closed due to system...
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Hydraulic Booster Pump Control Valve with High-Capacity Pilot - 60-19 & 660-19 | Cla-Val | Philippopoulos s.a.

Hydraulic Booster Pump Control Valve with High-Capacity Pilot - 60-19 & 660-19 | Cla-Val

Hydraulic Booster Pump Control Valve with High-Capacity Pilot - 60-19 & 660-19 | Cla-Val
Cla-Val
Cla-Val 60-19 / 660-19 – Booster Pump Control Valve The Cla-Val 60-19 / 660-19 is a pilot-operated valve designed for discharge control in large booster pump stations. It mitigates hydraulic transients during pump start-up and shutdown by providing a controlled open/close sequence, reducing the risk of water hammer and pressure surges. Operation The pump...
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Hydraulic Deep Well Pump Control Valve - 61-02 & 661-02 | Cla-Val | Philippopoulos s.a.

Hydraulic Deep Well Pump Control Valve - 61-02 & 661-02 | Cla-Val

Hydraulic Deep Well Pump Control Valve - 61-02 & 661-02 | Cla-Val
Cla-Val
Cla-Val 61-02 / 661-02 – Deep Well Pump Control Valve The Cla-Val 61-02 / 661-02 is a hydraulically actuated diaphragm valve designed for deep well pump discharge control. Installed at the pump outlet, it mitigates hydraulic shock during pump start-up and shutdown by initially venting air, sand, and water to atmosphere. Operation With the pump off, the...
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Hydraulic Deep Well Pump Control Valve with High Capacity Solenoid - 61-47 | Cla-Val | Philippopoulos s.a.

Hydraulic Deep Well Pump Control Valve with High Capacity Solenoid - 61-47 | Cla-Val

Hydraulic Deep Well Pump Control Valve with High Capacity Solenoid - 61-47 | Cla-Val
Cla-Val
Cla-Val 61-47 – Deep Well Pump Control Valve The Cla-Val 61-47 is a diaphragm-actuated, hydraulically operated control valve designed for deep well pump discharge applications. It is equipped with a CSM11-HC high-capacity solenoid pilot. The valve enables controlled pump start/stop sequences and facilitates venting of air, sand, and initial flow from the...
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Hydraulic Booster Pump Control Valve with High Capacity Pilot System - 60-08 | Cla-Val | Philippopoulos s.a.

Hydraulic Booster Pump Control Valve with High Capacity Pilot System - 60-08 | Cla-Val

Hydraulic Booster Pump Control Valve with High Capacity Pilot System - 60-08 | Cla-Val
Cla-Val
Cla-Val 60-08 – Booster Pump Control Valve The Cla-Val 60-08 is a pilot-operated valve designed for installation on the discharge side of booster pumps. Its primary function is to mitigate hydraulic transients during pump start-up and shutdown by providing controlled opening and closing via a 4-way solenoid valve. Operation The pump starts with the valve...
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Air Valves Series 39 | Cla-Val | Philippopoulos s.a.

Air Valves Series 39 | Cla-Val

Air Valves Series 39 | Cla-Val
Cla-Val
Cla-Val Series 39 Anti-Slam Air Valves The Cla-Val Series 39 is a range of anti-slam air valves designed for potable water, raw water, and wastewater pipelines. These valves are specified for filling, draining, and transient conditions where uncontrolled air discharge may result in hydraulic shock or water hammer. Functions Air release during pipeline...
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High-Performance Air Release & Vacuum Breaker Valve type 33A | Cla-Val | Philippopoulos s.a.

High-Performance Air Release & Vacuum Breaker Valve type 33A | Cla-Val

High-Performance Air Release & Vacuum Breaker Valve type 33A | Cla-Val
Cla-Val
Cla-Val 33A Air Release & Vacuum Breaker The Cla-Val 33A is a combination air release and vacuum breaker valve designed for water distribution networks and vertical turbine pump installations. It expels air during pipeline filling, releases pressurized air during operation, and admits air during draining, minimizing air lock and vacuum-induced...
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Well Service Air Release & Vacuum Breaker Valve type 33AWS | Cla-Val | Philippopoulos s.a.

Well Service Air Release & Vacuum Breaker Valve type 33AWS | Cla-Val

Well Service Air Release & Vacuum Breaker Valve type 33AWS | Cla-Val
Cla-Val
Cla-Val 33AWS for Well Pump Columns The Cla-Val 33AWS is an air release and vacuum breaker valve engineered for pump columns in well installations. It controls air discharge from the pump column during startup to minimize hydraulic shock and prevent air ingress into the distribution system. On pump shutdown, it allows unrestricted air intake into the...
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Air Release Valve series 34 | Cla-Val | Philippopoulos s.a.

Air Release Valve series 34 | Cla-Val

Air Release Valve series 34 | Cla-Val
Cla-Val
Cla-Val Series 34 Air Release Valve The Cla-Val Series 34 is an automatic air release valve designed for water pipelines. It is installed at high points in piping systems where air accumulation is likely during pressurized operation. The valve continuously expels small volumes of trapped air, preventing the formation of large air pockets that can increase...
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Air & Vacuum Valve Series 35 | Cla-Val | Philippopoulos s.a.

Air & Vacuum Valve Series 35 | Cla-Val

Air & Vacuum Valve Series 35 | Cla-Val
Cla-Val
Cla-Val Series 35 Air & Vacuum Valve The Cla-Val Series 35 is an air and vacuum valve designed for water pipelines. It performs two primary functions: rapid evacuation of large air volumes during pipeline filling, and air admission during pipeline draining or vacuum conditions, minimizing the risk of negative pressure development. Operation During...
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Combination Air Valve series 36 | Cla-Val | Philippopoulos s.a.

Combination Air Valve series 36 | Cla-Val

Combination Air Valve series 36 | Cla-Val
Cla-Val
Cla-Val Series 36 Combination Air Valve The Cla-Val Series 36 is a combination air valve designed for water pipelines. It integrates air release and air & vacuum functions, enabling air discharge under pressure, large volume air expulsion during filling, and air intake during pipeline draining. Operation The large orifice allows rapid air discharge...
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Wastewater Air Release Valve type 34WW | Cla-Val | Philippopoulos s.a.

Wastewater Air Release Valve type 34WW | Cla-Val

Wastewater Air Release Valve type 34WW | Cla-Val
Cla-Val
Cla-Val 34WW for Wastewater Applications The Cla-Val 34WW is an air release valve engineered for wastewater and industrial effluent pipelines. It is installed at high points in pressurized networks where air and gases accumulate, discharging small volumes before significant air pockets form. This prevents flow restriction and mitigates the risk of...
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Wastewater Air & Vacuum Valve type 35WW | Cla-Val | Philippopoulos s.a.

Wastewater Air & Vacuum Valve type 35WW | Cla-Val

Wastewater Air & Vacuum Valve type 35WW | Cla-Val
Cla-Val
Cla-Val 35WW Air & Vacuum Valve for Wastewater The Cla-Val 35WW is an air and vacuum valve designed for wastewater pipelines. It enables rapid expulsion of large air volumes during pipeline filling and allows air intake during draining, preventing negative pressure (vacuum) conditions that could compromise pipeline integrity. Operation During filling,...
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Wastewater Combination Air Valve type 36WW | Cla-Val | Philippopoulos s.a.

Wastewater Combination Air Valve type 36WW | Cla-Val

Wastewater Combination Air Valve type 36WW | Cla-Val
Cla-Val
Cla-Val 36WW Combination Air Valve The Cla-Val 36WW is a combination air valve designed for wastewater pipelines and sewage service. It integrates the functions of the 34WW air release and 35WW air & vacuum valves, providing air release under pressure, large volume air discharge during filling, and air intake during pipeline draining or vacuum...
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Vacuum Breaker Valve type 38VB/AR | Cla-Val | Philippopoulos s.a.

Vacuum Breaker Valve type 38VB/AR | Cla-Val

Vacuum Breaker Valve type 38VB/AR | Cla-Val
Cla-Val
Cla-Val 38VB/AR Vacuum Breaker & Controlled Air Release Valve The Cla-Val 38VB/AR is a vacuum breaker valve with slow air release, designed for transient pressure control in water pipelines. It opens to admit air under vacuum conditions and provides regulated air discharge to minimize the risk of pressure surges. Operation The valve is engineered to...
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Vacuum Breaker Valve type 33VB | Cla-Val | Philippopoulos s.a.

Vacuum Breaker Valve type 33VB | Cla-Val

Vacuum Breaker Valve type 33VB | Cla-Val
Cla-Val
Cla-Val 33VB Vacuum Breaker Valve The Cla-Val 33VB is a vacuum breaker valve designed for water distribution and transmission pipelines. It is installed at high points in piping systems to admit air during vacuum conditions, preventing pipe deformation, collapse, or unstable hydraulic operation. Operation The large air inlet orifice allows unrestricted...
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Check Valve - 81-01 & 681-01 | Cla-Val | Philippopoulos s.a.

Check Valve - 81-01 & 681-01 | Cla-Val

Check Valve - 81-01 & 681-01 | Cla-Val
Cla-Val
Cla-Val 81-01 / 681-01 Check Valve The Cla-Val 81-01 / 681-01 is a hydraulically operated, no-slam check valve designed for water distribution systems. The valve opens when inlet pressure exceeds outlet pressure and closes tightly upon pressure reversal, minimizing hydraulic shock. Operation Downstream pressure is routed to the cover chamber via control...
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Check Valve - 81-02 & 681-02 | Cla-Val | Philippopoulos s.a.

Check Valve - 81-02 & 681-02 | Cla-Val

Check Valve - 81-02 & 681-02 | Cla-Val
Cla-Val
Cla-Val 81-02 / 681-02 Check Valve The Cla-Val 81-02 / 681-02 is a hydraulically operated, no-slam check valve with dual speed controls, designed for water distribution systems. The valve opens when inlet pressure exceeds downstream pressure and closes drip-tight upon pressure reversal, preventing backflow. Operation Downstream pressure is routed to the...
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Check Valve - 81-18 | Cla-Val | Philippopoulos s.a.

Check Valve - 81-18 | Cla-Val

Check Valve - 81-18 | Cla-Val
Cla-Val
Cla-Val 81-18 Check Valve The Cla-Val 81-18 is a hydraulically operated, no-slam check valve designed for water distribution networks. The valve opens when inlet pressure exceeds downstream pressure and achieves drip-tight closure upon pressure reversal, preventing backflow. Operation Downstream pressure is routed to the cover chamber via control tubing....
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Check Valve - 81-12 | Cla-Val | Philippopoulos s.a.

Check Valve - 81-12 | Cla-Val

Check Valve - 81-12 | Cla-Val
Cla-Val
Cla-Val 81-12 / 681-12 Check Valve The Cla-Val 81-12 / 681-12 is a hydraulically operated, no-slam check valve designed for water distribution systems. The valve opens when inlet pressure exceeds downstream pressure and closes drip-tight upon pressure reversal, preventing backflow and water hammer. Operation Downstream pressure is routed to the cover...
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Silent Globe Check Valve - 581 | Cla-Val | Philippopoulos s.a.

Silent Globe Check Valve - 581 | Cla-Val

Silent Globe Check Valve - 581 | Cla-Val
Cla-Val
Cla-Val 581 Silent Globe Check Valve The Cla-Val 581 is a silent globe-type check valve designed for water distribution networks and pump stations. The spring-loaded disc closes prior to flow reversal, minimizing hydraulic shock and water hammer events. Technical Specifications Body: Ductile iron ASTM A536 65-45-12 Seat / Disc: Stainless steel 304...
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Two-Door Wafer Check Valve - 582 | Cla-Val | Philippopoulos s.a.

Two-Door Wafer Check Valve - 582 | Cla-Val

Two-Door Wafer Check Valve - 582 | Cla-Val
Cla-Val
Cla-Val 582 Two-Door Wafer Check Valve The Cla-Val 582 is a dual-plate wafer check valve designed for water distribution systems. It is installed between ANSI flanges and utilizes torsion springs to ensure both plates close prior to reverse flow, minimizing hydraulic shock (water hammer). Construction Body: Ductile iron ASTM A536 65-45-12 Plates:...
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