Shanghai Qigao Pump and Valve Group

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Oxygen stop valve
Based on the operating characteristics of the oxygen pipeline network and considering the flammable and explosive characteristics of the oxygen medium, the design principle is safety, reliability and superior performance and with reference to the " Special valves designed and manufactured to ensure the safe operation of the oxygen pipeline network in accordance with the provisions of the Oxygen Safety Regulations. The main body material is made of stainless steel or copper alloy with excellent flame retardancy. The sealing surface is the body or overlay welding. The remaining internal parts are made of stainless steel or copper alloy. The transmission parts are lubricated with non-flammable grease and marked with obvious oil-free signs. Structurally, the bracket is fully enclosed and has a static elimination device. The valve stem is equipped with a dust cap. The stop valve is used in accordance with the "Several Technical Regulations on Oxygen Pipe Networks for Iron and Steel Enterprises" issued by the Ministry of Metallurgical Industry.
The main material is stainless steel or copper alloy with excellent flame retardancy. The sealing surface is the body or overlay welding. The remaining internal parts are made of stainless steel or copper alloy. The transmission parts are lubricated with non-flammable grease and clearly marked with no oil. mark.
Structurally, the bracket is fully enclosed and has a static elimination device. The valve stem is equipped with a dust cap.
The special valves for oxygen pipelines of Shanghai Qigao Valve Factory have been deeply trusted by the oxygen pipeline networks of major and medium-sized steel plants, oxygen plants, and petrochemical plants since they were put on the market!
Structural features of oxygen stop valves< br/> 1. For nominal pressure, the internal bypass structure is adopted. D. The structure with external bypass valve is adopted. Its purpose is to reduce the pressure difference between the front and back of the valve to avoid high flow rate, high flushing and high temperature, thereby ensuring the safe operation of the oxygen pipeline network and reducing the operating torque.
2. Medium flow direction: The medium flows from the bottom of the valve disc to the top of the valve disc (i.e. low in and high out). The D medium flows from the side of the valve disc to the bottom (high in and low out). For D valves, the medium flows in high and low out. On the one hand, the flow direction meets the structural needs of the internal bypass valve; on the other hand, due to the effect of the medium pressure, the closing force of the valve is greatly reduced.
3. The valve is equipped with a static electricity safety device to avoid sparks caused by static electricity.
4. Compared with ordinary stop valves, the bracket part of the stop valve for oxygen pipeline adopts a fully enclosed structure, and the protective cover on the bracket can be opened when the packing is pressed, which plays a role in preventing oil and dust. And there are obvious no-oil signs.
5. All parts undergo strict degreasing treatment
Oxygen stop valve performance parameters
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% => Normal temperature
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Main dimensions of oxygen cut-off valve

Oxygen cut-off Valve
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