Assistant valve enterprise to win the world
通径:DN15~DN800 压力:PN16~PN40 材质:不锈钢,碳钢,铜合金设计标准:GB/T 12235
1. The oxygen globe valve is made of silicon brass or stainless steel with excellent material, which has the advantages of high mechanical strength, wear resistance and good safety. It is used in oxygen lines and has the best explosion-proof flame retardancy
Yes, the unsafe element of the oxygen line is eliminated.
2. The sealing surface is made of stainless steel body processing or surfacing cemented carbide, which is not easy to wear and abrasion, and has good sealing, and there is no relative sliding between the valve disc and the sealing surface of the valve body when opening and closing, so the wear and abrasion are even
It is not serious, has good sealing performance and long service life.
3. For the valve of PN≤4.0MPa and DN<200, the single disc structure is adopted, and the medium flows from the bottom of the valve disc to the top of the valve disc (that is, low in and high out), and the valve of DN>250 adopts a double disc structure, and the medium is composed of valves
The top of the flap flows into the bottom (i.e., high in and low out), on the one hand, it meets the needs of the internal bypass valve structure, and on the other hand, the closing force of the valve is greatly reduced due to the effect of medium pressure. At the same time for nominal pressure
The force PN≥6.3MPa, DN250~500 adopts the structure with external bypass valve. The aim is to reduce the pressure difference between the front and back of the valve to avoid high flow rates, high washouts and prevent high temperatures, thus guaranteeing oxygen
The safe operation of the gas pipeline network also reduces the operating torque.
4. The bracket part adopts a fully enclosed structure, and the protective cover plate on the bracket can be opened when pressing the filler, which plays the role of oil and dust prevention. And there are obvious oil ban marks.
5. The upper part of the valve stem is equipped with a dustproof device, all the valves in contact with oxygen are strictly degreased and oil-free before assembly, and the packing and gasket are made of PTFE to ensure the safety of sealing during use
Reliable.
6. The valve is equipped with a static conduction safety device, which can avoid sparks due to static electricity. There is a grounding screw on the flange of the valve body, and the static electricity of the valve is directly exported through the wire to ensure the safety of the valve.