Bermad IR-120-PD-Z Pressure Reducing Ratio Valve



Pressure Reducing Ratio Valve IR-120-PD-Z

The Bermad double chambered control valve is a ratio reduction valve that will reduce upstream pressure to downstream pressure at a Fixed ratio. The valve has a non metallic body and is simple and effective to reduce line pressure with no operating pilot mechanism.


  • Pressure Reducing Stations
  • Long downhill lines
    • Serial pressure reduction
    • Leakage and burst protection
  • High differential pressure systems
    • Protection against cavitation damage
    • Throttling noise reduction


  • Hydraulic Double chamber Control Valve
    • Line pressure driven
    • Full powered opening and closing
    • Protected diaphragm
    • Non-slam closing characteristic
  • Elegant simplicity
    • Most cost effective
    • Simple to maintain
    • No Pilot nor control Accessories
  • Engineered Plastic Valve with Industrial Grade Design
  • hYflow ‘Y’ Valve Body with “Look Throug” Design
    • Ultra-high flow capacity - Low pressure loss
  • ֺ User-Friendly Design
    • Simple in-line inspection and service



The downstream pressure is applied as closing force on the top side of both the diaphragm and the seal disk areas. The upstream pressure is applied as opening force on the bottom side of the seal disk area. The net force, resulting from the two opposing dynamic forces acting on the actuator’s diaphragm and seal, determines the degree to which the valve is open. As the ratio of the areas of the seal disk and the diaphragm is constant, the ratio of the upstream and downstream pressures is constant as well. When demand is zero, downstream pressure rises in proportion to the reduction ratio, causing the valve to shut off. The Manual Selector Valve 1 allows manual closing of the valve


Pressure Reducing Ratio Valve IR-120-PD-Z
Pressure Reducing Ratio Valve IR-120-PD-Z Brochure