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Sarasin-RSBD Starvalve (RS type) Changeover Valve

»Products»Valves By Brand»Sarasin-RSBD®»Sarasin-RSBD Starvalve (RS type) Changeover Valve

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.

The Starvalve Changeover Valve provides easy maintenance for a Pressure Relief Valve without having a process shutdown. It is designed to meet industry standard low pressure drop requirements and features a tested packing design with minimal leak points reducing fugitive emissions. Due to the changeover valve’s 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 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.

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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″”) – 2X 50mm (2″”) to 250mm (10″”) – 2X 250mm (10″”)
Double way: 50mm (2″”) – 2X 25mm (1″”) to 250mm (10″”) – 2X 200mm (8″”)

Temperature range:

-60ºC (-76°F) to +427ºC (+800°F)

Capacity:

Individually calculated and selected for each process application

Materials:

Carbon steel, various carbon & chrome moly steels austenitic stainless steels

    Downloads

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