Outlet Pressure Regulating Valve

Size Range from DN25 to DN65

Pressure Setting Range: A: 0~10.3 bar, D: 5.2~19.3 bar

Suitable for R12, R22, R502, R134a, R404a, R507, R717 and other compatible refrigerants.

Temperature Range: -46°C to +120°C.

OPRV are pilot operated using upstream pressure for the opening force and requires a minimum pressure drop to fully open. OPRV modulates flow of refrigerant gas or liquid to maintain a constant downstream pressure as set-for, despite fluctuations in load. The regulator will gradually close when downstream pressure begins to rise above the setting and will gradually open when pressure begins to fall below the setting. The regulator cannot maintain set-for pressure if uncontrolled branch pipe lines feed into the main pipeline downstream of the OPRV Regulator.

Typical uses are as follows:

• Protect Compressor Motor from Overload (Hold-back)
• Hot Gas Bypass Capacity Control &Defrost Control
• Limit Refrigerant Pressure in a Liquid Line
• Prevent Deep Vacuum in Booster Suction
• Prevent Pressure Rise in Suction Main