Sarasin-RSBD®
71 Series Pilot Operated Pressure Relief Valve
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.
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 & DIMENSIONS
- 15 – 40mm (0.5 – 1.5 inches)
PRESSURE RANGE
- Up to 431 bar (6,251 psig) with standard ASME class
TEMPERATURE RANGE
- Reaching -60ºC (-76°F) cryogenic levels to 327ºC (620°F)
CAPACITY
- Individually calculated and selected for each process application
SEAT TIGHTNESS
- 95%
MATERIALS
- Carbon Steel
- Austenitic Stainless Steels
DOWNLOADS
RELATED PRODUCTS
- Sarasin-RSBD®Red Point®
