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86 Series Pilot Operated Pressure Relief Valve
Brand: Sarasin-RSBD®It has been developed to protect the drum and superheater and to comply with local regulations where isolated steam from the atmosphere and remote sensing line are mandatory.
The Sarasin-RSBD® 86 Series Pilot Operated Pressure Relief Valve has been developed to address high temperature steam requirements.
This new design and material is based on our extensive experience in nuclear applications.
The DMS technology is the same technology that is currently used by SEBIM® in nuclear power plants.
The design of the valve seal is performed without any elastomer.
The main valve dome and DMS pilot sealing is insured by metallic bellows.
This feature allows the pilot operated pressure relief valve to keep a constant steam flow through the DMS pilot and the main valve without any impact on valve performance.
“Hang-up” of guiding surfaces associated with comparable valves is eliminated with a unique anti-sizing feature.
This is the first pilot operated pressure relief valve in the world to offer this technology to prevent this kind of failure.
Features- ASME B&PVC Section VIII Compliant
- Pop Pilot
- Standard Dimensions for the Inlet Flange Body - API Std 526
- Full Nozzle
- Metal Seat
- Anti-seizing Capabilities to Prevent Sticking
- Repeatable Set Pressure
- Hinged Disc
Specifications
Brand
Design Standards
- ASME BPVC Section VIII
- ISO 4126
- Directive 2014/68/UE|
- ATEX 94/9/EC
- EAC TR CU 10/12/32
Design Ratings
- ASME & API Class 150 to 2500
- API Class 5K & 10K (Customized)
Size Range and Dimensions
- 25 - 200 mm (1 - 8 inches)
Pressure Range
- Up to 180 bar
- 2,610 psig
Temperature Range
- Up to 590° C (1094° F)
Materials
- SA216 Grade WCC
- SA217 Grade WC6/WC9/C12A
- SA351 Grade CF8M
Seat Tightness
- 95%
Capacity
- Individually calculated and selected for each process application
- Steam Line
- Boiler in the Russian Market