Z641H Pneumatic Flange Cast Steel Gate Valve Product Overview

Z641H pneumatic flange gate valve is composed of pneumatic actuator and manual flange gate valve. Due to the use of a double-layer cylinder structure, the lifting force of pneumatic flange gate valves is doubled compared to single cylinder pneumatic gate valves. The valve is equipped with a buffering mechanism, which can effectively reduce the wear and tear on the sealing surface of the valve plate and valve body caused by the downward impact of the piston when closing the valve, and also avoid the phenomenon of the gate plate getting stuck.

　　Z641H Pneumatic Flange Cast Steel Gate Valve Product Features

1. The actuator of a pneumatic gate valve has two functions: forward and reverse, so the opening and closing methods of the valve include pneumatic opening and pneumatic closing. The gate valve adopts a unique metal contact structure, with reliable operation and extremely high cutting performance, which is superior to conventional cutting valves. Allow leakage to reach 10-8 × KV. Wide range of use, temperature can range from -196 ℃ to 500 ℃, with diameters as small as 40mm and as large as 600mm There are three types of valve seats: parallel, 60 ° V-shaped, and 90 ° V-shaped, which are suitable for different usage scenarios.

2. The valve body can be insulated in the form of a jacket, which is used in situations where the medium is prone to blockage, condensation, or coking after cooling.

3. Pneumatic gate valves, Z641H and Z641W, are widely used as opening and closing devices for connecting or cutting off media in oil and steam pipelines in petrochemical and thermal power plants.

　　Performance characteristics of Z641H pneumatic flange cast steel gate valve

1. Reasonable design, reliable sealing, smooth channel, and low flow resistance coefficient.

2. The sealing surface of the gate and valve seat is made of iron-based alloy or Stellite cobalt based hard alloy, which has good wear resistance, high temperature resistance, corrosion resistance, abrasion resistance, and long service life.

3. Adopting wedge type elastic gate or steel wedge type single gate structure, with rolling bearings set for medium and large diameters, flexible opening and closing, and easy opening and closing.

4. The valve stem has undergone quenching and surface nitriding treatment, providing excellent corrosion resistance, abrasion resistance, and wear resistance.

5. Various piping flange standards and flange sealing surface types can be adopted to meet various engineering needs and user requirements.

6. The valve body material variety is complete, and the packing and gasket can be reasonably selected according to actual working conditions or user requirements, which can be suitable for various pressure, temperature, and medium working conditions.

　　Z641H Pneumatic Flange Cast Steel Gate Valve Ordering Method

This product is directly supplied by the manufacturer. If special configurations are required (can be customized), please specify the following parameters in detail when placing an order:

(For example: valve type, driving method, connection form, structural type, nominal pressure, nominal diameter, input signal, sealing surface material, valve body material, applicable temperature, whether accessories are included)