Sarasin-RSBD 71 Series Pilot Operated Pressure Relief Valve
The Sarasin-RSBD 71 SERIES design has been developed for customer who want to protect 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 thermal expansion spring-loaded body design (9 SERIES)
The Sarasin-RSBD 71 SERIES are an engineered custom-made design that has been industrialized and offer FULL NOZZLE Pilot Operated Pressure Relief Valve in Industrial Gas Service:
FULL NOZZLE version is better to insure body chemical protection
In case of upgraded process (higher backpressure / higher operating pressure) customer can simply go from Spring Loaded to Pilot Operated version keeping the same center-to-face dimension.
FULL NOZZLE version are integral wetted components which offer the advantage of removal for maintenance and replacement.
The associated POP action DGS Pilot can be fitted with a remote sensing line to prevent against chattering issue.
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
ASME / API Class 150 to 2500,
API Class 5K & 10K (customized)
Size range/ dimensions:
15mm (1/2″) to 40mm (1 1/2″)
Up to 431 barg (6251 psig) with standard ASME class
Reaching -60ºC (-76°F) cryogenic levels to +327ºC (+620°F)
Individually calculated and selected for each process application