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The FDF two sections shut-off valveisa kind of a two-stage shutting down valve. Close to quickly shut down at the first stage, and the second close to the slow closed. Installed in the oil pipe between governor main distributing valve and servomotor, controlling the closing speed to prevent water hammer accidents,ensuring safe and reliable operation of hydroelectric generating set. Bold innovationon traditional product, a new control principle and structure are designed withcartridge valve technology, better sealing performance, slow closing adjustment easier.
Functions and Features
1. The use of cartridge valve technology, control pressure up to 31.5MPa, valve without leak.
2. Purely hydraulic mechanical structure, no special maintenance.
3. The operation is stable and reliable, easy to adjust, no drift.
Main parameters
1. Rated pressure: 2.5MPa, 4.0MPa, 6.3MPa 16.0MPa
2. Temperature of surroundings: 5～40℃
3. Installation mode: horizontal or vertical
4. Link mode: flange link.
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