Turbine Bypass

1. Cooling Water Control Valves (I, III, V)
Temperature control of secondary steam after the steam-conditioning stations is carried out by cooling water control valves. The steam is then fed to the cooling chamber of the steam-conditioning control valve.

2. HP-LP Steam-Conditioning Control Valves (II)
The HP-LP station supplies the plant with low-pressure steam to meet the power station's own requirements when the turbine is not running or turbine tap pressure is insufficient. ARCA steam-conditioning control valves, are designed to reduce and minimize noise to protect operating staff and the environment by using perforated plugs and seat rings with graduated control, which provide ideal conditions for this. Steam pressure recuction takes place in the vakve body while temperature control is done by injecting cooling water into the valve itself or just after the pressure reduction stage in the outlet line. Process conditions dictate which design is used.

3. HP-MP Steam-Conditioning Control Valves (IV)
The HP-MP station supplies the plant with medium-pressure steam to meet the power station's requirements when the turbine is not running or turbine tap pressure is insufficient. ARCA steam-conditioning control valves, are designed to reduce and minimize noise to protect operating staff and the environment by using perforated plugs and seat rings with graduated control, which provide ideal conditions for this. Steam pressure recuction takes place in the vakve body while temperature control is done by injecting cooling water into the valve itself or just after the pressure reduction stage in the outlet line. Process conditions dictate which design is used.

4. Bypass Station, Steam-Conditioning Control Valves (VI)
The bypass station takes the excess live steam and typically channels it through a steam tube directly into the condenser if the emergency tripping mechanism for the turbine is activated. ARCA steam-conditioning control valves, are designed to reduce and minimize noise to protect operating staff and the environment by using perforated plugs and seat rings with graduated control, which provide ideal conditions for this. Steam pressure recuction takes place in the vakve body while temperature control is done by injecting cooling water into the valve itself or just after the pressure reduction stage in the outlet line. Process conditions dictate which design is used.

Valve & Automation factory trained specialists with extensive plant experience will be able to assist in sizing and selecting the correct control valve for your application. Talk to one of our Technical Specialists today!

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