DKZ41H, DKZ41Y steel vacuum gate valve，Vacuum gate valve，gate valve

DKZ41H, DKZ41Y type PN10~PN100 steel vacuum gate valve: manual, flanged connection, open wedge type rigid single gate, valve seat sealing surface material for alloy steel, nominal pressure PN10~PN100, valve body material for high quality carbon steel (DKZ41H), chromium molybdenum steel (DKZ41Y) vacuum gate valve.

Features of structure

Vacuum gate valve, national standard gate valve, cast steel gate valve, according to the sealing surface configuration can be divided into wedge type gate valve and parallel gate valve, wedge type gate valve can be divided into: single gate type, double gate type and elastic gate type; Parallel gate valve can be divided into single gate type and double gate type. According to the thread position of the valve stem, it can be divided into two types of gate valve and gate valve.

When the vacuum gate valve is closed, the sealing surface can only rely on the medium pressure to seal, that is, rely on the medium pressure to press the sealing surface of the gate to the other side of the valve seat to ensure the sealing surface, which is self-sealing. Most gate valves are forced to seal, that is, when the valve is closed, it is necessary to rely on external force to force the gate to the valve seat to ensure the sealing surface of the seal.

The gate plate of the vacuum gate valve moves in a straight line with the valve stem, which is called the lifting rod gate valve (also known as the open rod gate valve). Usually, there are trapezoidal threads on the lifting rod, through the nut at the top of the valve and the guide slot on the valve body, the rotation motion is changed to a straight line, that is, the operating torque is changed to the operating thrust.

When THE VALVE IS OPENED, when the gate elevation is equal to 1:1 times the valve diameter, the flow passage is completely unimpeded, but this position cannot be monitored during operation. In actual use, the apex of the valve stem is used as a sign, that is, the position of the valve stem is not moved, as its full open position. To account for temperature changes in the occurrence of locking phenomenon, usually in the opening to the apex position, and then back 1/2-1 turn, as the position of the fully open valve. Therefore, the fully open position of the valve is determined according to the position of the gate (i.e., stroke >.

Some gate valves, the stem nut is located on the gate plate, the hand wheel rotation drive the stem rotation, and make the gate plate lift, this valve is called the rotary rod gate valve or the dark rod gate valve.

DKZ41H, DKZ41Y type PN10~PN100 steel vacuum gate valve: manual, flanged connection, open wedge type rigid single gate, valve seat sealing surface material for alloy steel, nominal pressure PN10~PN100, valve body material for high quality carbon steel (DKZ41H), chromium molybdenum steel (DKZ41Y) vacuum gate valve.

Packing of Standard Packing: 

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 470 gallon liquid totes Special package is available on request. E FORUs’  is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition