COMPANY HEADER
Print Back
Parker’s MARSA series (Soft Seat) relief valves utilize a soft seat design for reliable venting of gases at set pressures from 1,500 psi (103 bar) to 15,000 psi (1035 bar). The operating temperature range is -50ºF (-46ºC) to 400ºF (204ºF). The soft seat design provides bubble tight sealing, repeatable pop-off, and reseat. Additionally, soft seat valves provide a higher cycle life than metal seat relief valves.

These precision valves are designed for pressure gas systems, where zero leakage ismore
Unit of Measure

Dimensions

Connection

 MPI™ to FNPT

Size

 1/2 x 3/4

Orifice Diameter

 .156 in

Pressure Rating [Min]

 5000 psi345 bar

Pressure Rating [Max]

 10000 psi690 bar

Back Pressure [Max]

 500 psi34 bar

A

 10.62 in

Repair Kits

 R8MARSA-10K-2507

Specifications

Caution
  1. Parker Relief Valves are preset and factory sealed. Warranty is voided if seal is broken by customer.
  2. Maximum system operating pressure should not exceed 90% of relief valve set pressure. Pressures in excess of this value may cause weepage resulting in damage to plug and seat.
  3. Care should be taken when locating a relief valve within a piping system to keep the relief valve as far from the pump as possible. Certain pumps create an end-of-stroke spike in pressure that is not detectable by common instrumentation. These spikes could cause premature failure of the relief valve.