Sarasin-RSBD®
Starvalve (RS type) Changeover Valve
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.
KEY FEATURES & BENEFITS
- 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
APPLICATIONS
- Refineries Petrochemical and Chemical installations
DESIGN STANDARDS
- ASME B16.34, PED 2014/68/UE
DESIGN RATINGS
- ASME Class 150 to 600
SIZE RANGE & DIMENSIONS
- Single way: 50mm (2 inches), 2 x 50mm (2 inches) to 250mm (10 inches), 2 x 250mm (10 inches)
- Double way: 50mm (2 inches) – 2 x 25mm (1 inch) to 250mm (10 inches) – 2 x 200mm (8 inches)
TEMPERATURE RANGE
- -60ºC – 427ºC (-76°F – 800°F)
CAPACITY
- Individually calculated and selected for each process application
MATERIALS
- Carbon steel, various carbon & chrome moly steels austenitic stainless steels
DOWNLOADS
RELATED PRODUCTS
- Sarasin-RSBD®Red Point®
