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IMI Bopp & Reuther
SIRA BHsT - High Pressure Turbine Bypass Control Valve
Protect turbines with precise steam diversion and pressure control.
Diverts steam to prevent turbine damage during load changes or trips.
Advanced steam atomisation ensures efficient vaporisation and temperature control.
Handles extreme conditions with durability and compliance with safety standards.
Features
The SIRA BHsT high-pressure turbine bypass valve from IMI efficiently diverts steam from the main boiler to the cold reheater line, ensuring safe pressure and temperature reductions. Designed for start-up, shut-down, and load changes, it prevents turbine damage and improves plant efficiency. With pinpoint positioning accuracy, a modular design, and advanced steam atomisation for optimal vaporisation, the valve delivers precise control. Its angle-type body and hard-faced seat ensure durability under extreme conditions, handling up to 320 bar and 650°C. The SIRA BHsT valve meets stringent safety standards, making it an ideal solution for modern power plant operations.
Key features
Angle-type body with vertical actuator
Multi-stage pressure reduction for low noise levels
Hydraulic actuator with helical spring
Steam atomising injection nozzle
Parabolic plug for precise control
Handles temperatures up to 650°C
Handles pressures up to 320 bar
Hard-faced integrated valve seat
Meets DIN EN ISO 4126 and ANSI leakage class V
Optional SIL III certification for enhanced safety
Specifications
Fluid Types
Steam
Trim Category
Multi-Stage
Material
EN: 1.7335
1.7383
1.4903
1.4901 ASTM: F12
F22
F91
F92
Actuator Type
Hydraulic
Spray Injection Category
Steam Assist
Design Codes
EN
Temperature Limits (°C)
300 to 650
Certification
SIL III certified system (IEC EN 61511) in conjunction with MT 5356
Service Category
Severe
Resources
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