Ideal protection from backflows for steam turbines
Extremely reliable check valves are needed to protect steam and gas turbines from reverse flows. With their reliable, non-jamming closures, our check valve SCV is optimally designed to fulfil this important protective function.
SCV check valves efficiently protect steam and gas turbines from backflows coming from steam extraction pipes. This is guaranteed by a free-swinging model that closes automatically by means of its own weight. It enables it to swing closed against a double bearing friction moment without the assistance of a drive system. Extremely short closure times of under 0.5 seconds are possible. A hydraulic, pneumatic or an electric fail safe drive can be added as a closure aid by means of a two-part stem construction.
The check valve SCV is a robust cast valve with butt-welded ends. Welding neck flanges can be welded on. Its disc is made of chrome steel which reduces abrasions. In addition, the discs of installed valves can be replaced via the inspection and assembly opening. The seal seat is manufactured by deposit welding and can be hard-coated if necessary.
- Tightness at least in accordance with ANSI/FCI 70-2 Cl. V
- No jamming at seat
- Low pressure loss due to overrunning clutch
- High resilience to temperatures
- Fireproof design
- Low drive torque
- Compact, robust design
- Minimal maintenance; on-site maintenance possible
- Inspection and assembly opening
ADAMS Product range
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