VS Turbine Bypass Stop Valve
High-performance turbine bypass stop valve for harsh environments
The VS Turbine Bypass Stop Valve is designed for use in the demanding conditions of modern fossil-fuelled power plants. It is commonly applied when a separate stop valve is required upstream of the HP or LP turbine bypass valves, or when a tight shut-off valve is necessary. Additionally, the VS valve can be utilised in the spray water line, or as an isolation valve in a process steam line. Its robust construction ensures long-term performance in harsh environments, making it a reliable solution for critical operations.
- Fully machined valve body made from forged CrMo low alloy or carbon steel to minimise material stresses and ensure durability.
- Angle-style valve design for superior flow control and structural strength.
- Hard-faced seat integrated with the valve body, providing Class V (ANSI/FCI 70-2) tightness and eliminating the need for gaskets.
- Pressure seal bonnet design for easy mounting and removal, ensuring safe and secure operation.
- Customisable design with options for pneumatic, electrohydraulic, or electromechanical actuators based on project requirements.
- Available in balanced tight design to reduce opening forces and improve efficiency.

Product Specifications

Valve configuration
- VS-T: Unbalanced, tight design with leakage tightness according to ANSI B16.104 Class V.
- VS-BT: Balanced, tight design with leakage tightness according to ANSI B16.104 Class V.
Actuator options
- Pneumatic actuator
- Electrohydraulic actuator
- Electromechanical actuator
Materials
- Valve body: Forged CrMo low alloy or carbon steel
- Plug and stem: Corrosion-resistant alloy with surface treatment for added hardness
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