Oxygen stop valve
I. Introduction:
The JY41W oxygen stop valve, a special valve for oxygen pipelines, is designed based on the operating characteristics of oxygen pipelines and the flammable and explosive nature of oxygen medium, with safety, reliability and superior performance as the design principles. Valve type: According to the "Several Technical Regulations for Oxygen Pipelines in Iron and Steel Enterprises" issued by the Ministry of Metallurgical Industry, a stop valve is adopted. The main body material is stainless steel or copper alloy with excellent flame retardancy; the sealing surface is the base metal or surfaced with D802; other internal parts are made of stainless steel or copper alloy; the transmission part is lubricated with non-combustible grease, and is marked with obvious oil-forbidden signs. Structurally, the bracket is fully enclosed and equipped with an electrostatic guiding device, and the valve stem is fitted with a dust cap. Since its launch in the market, our company's special valve for oxygen pipelines has been widely trusted by large and medium-sized steel plants, oxygen production plants and petrochemical plants for their oxygen pipelines!
II. Product Features:
1. Flame and fire resistance: The main components are made of copper alloy, which is a non-combustible material. Even if it collides with solid particles in high-speed airflow, no sparks will be generated. Therefore, this valve has flame and fire resistance performance.
2. Safety and reliability: This valve is equipped with dust-proof, waterproof and oil-proof and sewage-proof devices. All valve bodies in contact with oxygen have undergone strict degreasing and oil-forbidden measures before assembly. The packing material is polytetrafluoroethylene, which can ensure safety and reliability during use.
III. Structural Features:
1. For nominal pressure PN≥1.6MPa and DN125~200, an internal bypass structure is adopted; for DN250~500, a structure with an external bypass valve is adopted. The purpose is to reduce the pressure difference between the front and rear of the valve to avoid high flow velocity, high erosion and high temperature, thus ensuring the safe operation of the oxygen pipeline network and reducing the operating torque at the same time.
2. Medium flow direction: For PN≥1.6MPa and DN≤100, the medium flows from below the valve disc to above the valve disc; for DN≥125, the medium flows from above the valve disc to below the valve disc. For valves with DN≥125, the medium adopts the flow direction of "high inlet and low outlet", which on the one hand meets the structural requirements of the internal bypass valve, and on the other hand, due to the effect of medium pressure, the closing force of the valve is greatly reduced.
3. This valve is equipped with an electrostatic guiding safety device, which can avoid sparks caused by static electricity.
4. Compared with ordinary stop valves, the bracket part of the oxygen pipeline stop valve adopts a fully enclosed structure. When compressing the packing, the protective cover on the bracket can be opened, which plays the role of oil prevention and dust prevention, and is marked with obvious oil-forbidden signs.
5. All parts have undergone strict degreasing treatment.
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