Fluid controls the fast shut-offvalve main instament to pull outhe steam pipeine,the blast fumace coal gas to the steam turbine-odd pressesthe electric power facllty lRl to let in air the pipelne contour securty rank system, does urgently shuts offthe valve to use; Has the crisis operaingmode when the system, mplements in the 0.3-0.8 second urgenitly closes the valve,realizes the pipeline reliable closure, efecively prevented thesteam engine rear part steam and the condensed water but actually fil or shuts offthe coal gas pipeline, protects the turbine unit the security.
Structure and characteristic
Fluid controls the fast shut-off valve by the main valve, the gear rack cyinder transmission device, the hydrauic system,the electricily controsystem four major part is composed. Each part of high integrations are a whole, the structure are compact, greatly has saved the space.Uses three eccentric metals seals buterly valve,disposes the unique angle bias design in the traditional double eccentric structure foundationjuly uses the cam effect, causes the valve opens shuts when to seal the vice-momentary conlact, the instant in spearated from, eiminates the frictiorand the card crowds, wears slightly, thermostable, opens shuts with ease, the seal is reliable.
