vacuum gate valve, valve production NKZ41H vacuum gate valve opening and closing is ram, ram movement direction perpendicular to the direction of flow and the Industrial Valves can only be fully open and close, not to adjust and throttling.

a, product overview:

the main purpose of the vacuum gate valve: the valve is suitable for the working temperature & le; 425℃（ Chrome molybdenum steel NKZ44Y type for & le; 550℃） , working medium is water, steam or air tube of the road, as the opening and closing device; Particularly suitable for power plant turbine condenser and vacuum negative pressure system, the vacuum insulated sealing function.

product features:

modified overall by the common manual vacuum gate valve gate valve, the difference is that the vacuum packing seal gate valves equipped with a vacuum sealing ring, with the expansion pressure. Better than ordinary gate valves of the gas seal performance.

3, product introduction:

vacuum gate valve opening and closing is ram, ram movement direction perpendicular to the direction of flow and the valve can only be fully open and close, not to adjust and throttling. Sealing face has two gate, two of the most commonly used mode gate valve sealing surface form a wedge, the wedge Angle vary with the valve parameters, usually for 5 & deg; The medium temperature is not high for 2 & deg; 52 ' 。 Wedge gate valve of the damper can be made into a whole, is called a rigid disc; Can also make it generates trace of deformation of ram, in order to improve the manufacturability, make up for the sealing surface Angle in the process of our processing deviation, this damper is called elastic disc. The average Industrial Valves.

4, suitable medium:

C: water, oil, steam p: nitrate class ( Temperature & le; 200℃ ） R: acetic acid class ( Temperature & le; 200℃ ） Design parameters:

the design, manufacture, GB/T12237 - 89

flange connection: JB/T79 - 94年,GB9113 - 2000

structure length: GB12221 - 89

nominal diameter: DN15 ~ DN150mm

nominal pressure: PN1. 6, 2. 5, 4. 0MP。

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