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Cla-Val 750-01- Pressure Relief Control Valve

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Data Sheet
Installation Manual



As the Australian distributors of Cla-Val products, Challenger Valves is proud to offer the Cla-Val Model 750-01 Pressure Relief, Sustaining, and Back Pressure Valve. This automatic control valve is hydraulically operated and pilot-actuated, consisting of only two parts: a stainless steel body and an elastomeric liner or control element.

The main valve of the Cla-Val Model 750-01 opens when inlet pressure exceeds a preset pressure and allows enough flow to maintain that inlet pressure. In pressure sustaining service, this valve conserves pressure in an upper system during periods of high demand in a system below. In pressure relief service, the valve modulates to exhaust line pressure and keep it below a maximum set point. On a pump bypass system, the valve allows flow back to the pump suction when the pump discharge pressure exceeds the set point.

With the ability to control from no flow to full open flow without any chattering or slamming under low flow conditions, the Cla-Val Model 750-01 ensures stable control in by-pass, relief, and pressure sustaining service. You can trust Challenger Valves to provide you with high-quality Cla-Val products to meet all your industrial needs.

Cla-Val Pressure Relief / Sustaining Control Valve 790-01


Pressure Relief / Sustaining Control Valve
  • Bronze/Stainless Steel*, Buna-N®
  • Natural Rubber, 65 durometer (standard)
  • DN50-DN300
  • ANSI B16.5 class 150 (fits class 125) or ANSI B16.5 class 300 (fits class 250)
Pressure rating
  • 720 psi
Operating temperature
  • 0°c - 70°c

Optional Extras

  • Liner in Viton, EPDM, Nitrile, Silicone (available)