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 | Philippopoulos s.a.

Hydraulic Pressure Control Valves - 98-06 & 698-06 Hydraulic Water Saving Control Valve | 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 pipeline overpressure and leakage during periods of low consumption. The high set point maintains adequate pressure for normal or increased demand. Switching logic can be hydraulic or electrically actuated, depending on system requirements.

Applications

  • Water supply zones with night-time pressure reduction
  • Networks with non-revenue water concerns
  • Pipeline overpressure protection
  • Municipal networks and DMA zones
  • Industrial water supply systems

Construction

  • Connection: flanged
  • Standard: ANSI
  • Pressure classes: 150 lbs, 300 lbs
  • Materials: bronze, ASTM A216 WCB, ductile iron

Variants

  • 98-06: full port design.
  • 698-06: reduced port for lower flow rates or enhanced control stability.

Selection Criteria

Selection based on peak flow, minimum night flow, high/low set points, available ΔP, cavitation risk, and required switching logic. Media compatibility and actuator type should be verified for each application.

FAQ

Is this a standard PRV?
No. It is a PRV with two downstream set points for dynamic pressure management.

Is electrical power required?
Depends on the set point switching mechanism. Basic pressure regulation is hydraulic; electrical supply is only needed for electrically actuated switching.

Standard (Options)
  • ANSI
Connection (Options)
  • Flanged
Material (Options)
  • Bronze
  • ASTM A216 WCB
  • Ductile Iron
Pressure Rating (Options)
  • 150 lbs
  • 300 lbs

Datasheet and documents

Description

Cla-Val Models 98-06 and 698-06 Water Saving Valves use two downstream set points to achieve optimum system pressure; i.e. the capability delivering only the pressure that is needed to meet current demand.

A high-pressure set point is selected for high flow demand and a low-pressure set point is selected for low flow demand. This dual set point arrangement allows for a reduction in water consumption as well as unintentional water loss by keeping system piping from being over-pressurized during periods of low demand, such as at night. It does this without inhibiting adequate pressure during periods of normal (daytime), high or fire demand.

The 98-06 Water Savings Valve provides ” the best of both worlds” – adequate pressure to meet demand and maintain customer satisfaction, but not so much that pipelines become over-pressurized and subject to leakage and pipe breaks.