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71 Series Pilot Operated Pressure Relief Valve
Brand: Sarasin-RSBD®The Sarasin-RSBD® 71 Series design has been developed to protect the piping or vessel against thermal expansion overpressure in gas service, keeping operating pressure close to the set pressure.
The Sarasin-RSBD® 71 Series design is based on a thermal expansion spring-loaded body design - 9 Series.
The Sarasin-RSBD® 71 Series are an engineered, custom-made design that has been industrialized and offers a full nozzle pilot operated pressure relief valve for use in industrial gas service.
The full nozzle option insures body chemical protection.
In case of an upgraded process: higher back pressure or higher operating pressure, the customer can change from a spring loaded to pilot operated version, keeping the same center-to-face dimension.
The full nozzle option includes integral wetted components which offer the advantage of removal for maintenance and replacement.
Features- ASME BPVC Section VIII Compliant
- Full Nozzle
- Metal Seat
- Anti-seizing Capabilities to Prevent Sticking
- Repeatable Set Pressure
- Hinged Disc
Specifications
Brand
Design Standards
- ASME BPVC Section VIII
- API STD 520/527
- ISO 4126
- Directive 2014/68/UE
- ATEX 94/9/EC
- EAC TR CU 10/12/32
- SELO TS
- Marine Standards
Design Ratings
- ASME & API Class 150 to 2500
- API Class 5K & 10K (customized)
Size Range and Dimensions
- 15 - 40 mm (0.5 - 1.5 inches)
Pressure Range
- Up to 431 bar (6,251 psig) with Standard ASME Class
Temperature Range
- Reaching -60° C (-76° F) Cryogenic Levels to 327° C (620° F)
Capacity
- Individually Calculated and Selected for Each Process Application
Seat Tightness
- 95%
Materials
- Carbon Steel
- Austenitic Stainless Steels
- Industrial Gas