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RS Type Starvalve Changeover Valve
Brand: Sarasin-RSBD®The Sarasin-RSBD® Starvalve series of changeover valves provides a safe and efficient method of switching from an active to a standby pressure relief valve.
Due to the changeover valve design, no seat lapping is required for maintenance, meaning there are minimal spare parts and a reduced cost of ownership.
It reduces the risk of a pressure relief valve chattering from excessive pressure drop through traditional shuttle type changeover valves.
The Sarasin-RSBD® Starvalve is a rotor type changeover valve which maintains a pressure drop of pressure below 3% through its body.
This changeover valve is designed for use in refineries within the petrochemical and cryogenic industries.
Features- Rotor type maintaining a pressure drop of pressure below 3% through its body
- Clear, positive indication of the active pressure relief valve
- Tested packing design plus minimal leak points ensure reduced fugitive emissions
- No seat lapping is required for maintenance
- Minimal spare parts reduce the cost of ownership
- Simple operation, built-in seat equalization, and no special tool requirements minimize the total valve operating time
- Tandem design: single way, for dual pressure relief valves which are discharging into a closed header system
Specifications
Brand
Design Standards
- ASME B16.34
- PED 2014/68/UE
Design Ratings
- ASME Class 150 to 600
Size Range and Dimensions
- Single-Way: 50 mm (2 inches), 2 x 50 mm (2 inches) to 250 mm (10 inches), 2 x 250 mm (10 inches)
- Double-Way: 50 mm (2 inches) - 2 x 25 mm (1 inch) to 250 mm (10 inches) - 2 x 200 mm (8 inches)
Capacity
- Individually calculated and selected for each process application
Temperature Range
- -60° C - 427° C
- -76° F - 800° F
Materials
- Carbon Steel
- Various Carbon and Chrome Moly Steels
- Austenitic Stainless Steels
- Refineries
- Petrochemical and Chemical installations