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Product overview
Main structural characteristics and USES
1, this series of valve body adopt casting structure, with parallel double sealing deputy half a mandatory two-way sealing, sealing surface in the movement and wedge for zero leakage fast chocking effect step by step.
2, sealing surface friction small, portable, for opening and closing and sealing surface abrasion automatic compensation function.
3, simple, compact structure, convenient maintenance, long service life.
4, cover packing room equipped with vacuum sealing structure, have since the expansion pressure effect, and the sealing the surface with high strength expansion materials, then system completely isolated from the atmosphere, has the very good system tightness.
5, this series valve flange, welding connection points two kinds, drive mode, which has two kinds of manual and electric.
The valves are suitable for working temperature 425 ℃ and 550 ℃ or less, or less for water, steam or air as the working medium of piping, as the opening and closing process;Particularly suitable for power plant turbine condenser and vacuum negative pressure system, the vacuum insulated sealing function.
Applicable medium:Water, steam, air
Suitable temperature (℃):425 or less,550 or less
Body and bonnet : WCB ,Chrome molybdenum steel,
The valve stem:2Cr13, 20Cr1Mo1VA 38CrMoAIA
Ram:25,Chrome molybdenum steel
Stem nut:Aluminum bronze
Packing:Expansion composite graphite
Fasteners:High quality carbon steel,Chrome molybdenum steel
Power station Vacuum isolation gate valve
