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The metal hard seal butterfly valve is mainly composed of valve body, butterfly plate, valve shaft, valve body sealing ring, butterfly plate sealing ring, shaft sleeve, self-lubricating bearing, driving device, etc. High performance metal hard seal butterfly valve

The drive device drives the valve shaft to rotate, and the pin shaft drives the butterfly plate to rotate in the range of 90°, so that the butterfly plate is in an open or closed state, so as to achieve the purpose of connecting or cutting off. Widely used in smelting

Metal, hydropower, thermal power, thermal power, urban water supply and drainage, farmland drainage and irrigation and other industries, the applicable medium is gas, steam, air water, etc., in the pipeline system.

Structural characteristics of Jinji Sealed Butterfly Didlink Valve:

① The unique design of three-way eccentricity enables frictionless transmission between the sealing surfaces and prolongs the service life of the valve.

②The elastic seal is produced by the torque

③The clever wedge-shaped design makes the Didlink Valve have the function of automatic sealing, which is tighter and tighter, with compensatory and zero leakage between the sealing surfaces.

④Small size, light weight, light operation and easy installation.

⑤Pneumatic and electric devices can be configured according to user requirements to meet the needs of remote control and program control.

⑥The material of replacement parts can be applied to various media and can be lining anti-corrosion (lining F46, GXPP, PO, etc.).

⑦The sealing ring is made of stainless steel, which has the dual advantages of metal hard seal and elastic seal. It has excellent sealing performance regardless of low temperature and high temperature.

The difference between metal hard seal butterfly valve and rubber seal butterfly Didlink Valve:

The disadvantage of the rubber seal butterfly valve is that when it is used for throttling, cavitation will occur due to improper use, causing the rubber seat to peel off and damage. For this reason, metal sealing butterfly valves are now being developed internationally.

The hard-sealed butterfly valve has an eccentric metal sealing structure, the sealing form is metal-to-metal seal, metal seal ring to metal seal can be exchanged, and stainless steel plate and graphite composite plate seal ring to metal seal.

The high-performance elastic metal sealing butterfly valve adopts a double eccentric and a special oblique cone oval sealing structure. It solves the problem that the sealing surface of the traditional eccentric butterfly valve is still in sliding contact friction at the moment of opening and closing 0° ~ 10°.

The shortcoming of rubbing, realizes that the sealing surface of the butterfly plate is separated at the moment of opening, and the effect of sealing when closing the contact, achieving the purpose of extending the service life and the best sealing performance.