Pressure Sustaining Valve IM-SP3PP

General Description:
The IM-SP3PP pressure sustaining valve is designed to automatically maintain upstream pressure at a predefined minimum value. If the upstream pressure drops below this value, the valve closes to ensure the desired pressure is maintained. It is ideal for applications that require pressure flow control and balance.

Technical Specifications:

• Valve Type: Hydraulic, 3-way
• Pilot: Model SP3PP
• Pressure Adjustment Range:
  • Grey Spring: 0.2÷1.5 bar
  • White Spring: 0.6÷3.0 bar
  • Red Spring (Standard): 1.0÷5.5 bar
  • Black Spring: 2.0÷9.0 bar
• Materials:
  • Pilot Body: Reinforced nylon
  • Cover: Reinforced nylon
  • Manual Control CM4V: Brass, with stainless steel ball and Teflon seat
• Connections:
  • Manual control body: Ø1/4” M BSP
  • Open/Close/Auto: Ø1/8” F BSP

Operating Principle:
The valve is controlled by a 3-way hydraulic pilot (Model SP3PP), which adjusts the membrane opening based on upstream pressure. The pilot fills or discharges the valve’s control chamber to maintain the minimum upstream pressure, balancing variations in flow and pressure.
When the upstream pressure is equal to or lower than the set pressure, the valve closes fully. If the upstream pressure exceeds the set value, the valve fully opens. The valve can also be manually operated via a 3-way control (Model CM4V), allowing full valve opening or closing independent of the pilot.