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Balanced Fully Welded Ball Valve
Product overview
Balanced fully welded ball valve is used in the field of natural gas, oil, heat supply, chemical industry and thermal power pipeline network, as the control device of opening and closing. The valve body is made of carbon steel or stainless steel seamless steel pipe / steel plate, and the ball has floating structure and fixed structure; the valve seat structure adopts the design of piston effect and wear compensation, and the sealing structure is designed as single and double soft sealing rings, and the metal sealing surface forms multi-stage seal with the ball body, so as to ensure the safe, reliable and long-term stable operation of the series of ball valves. The ball valve has the advantages of small volume, light weight, no leakage, no maintenance, long service life and convenient operation.
Product Features
1. The valve rod can be lengthened according to the user's specific installation conditions to facilitate ground operation;
2. Compared with the conventional ball valve of the same specification, it has the advantages of small volume, light weight, beautiful appearance and durability;
3. PTFE, nylon, alloy steel, cemented carbide, etc. can be selected according to different media, which can adapt to different temperature, pressure and corrosive requirements in a wide range;
4. All welded structure, no leakage of middle flange, butt welding connection or flange connection with pipeline. The former has no leakage of pipe and valve flange connection, while the latter is easy to disassemble and repair the valve.
Execution Standard
Design spec：API 6D、ASMEB 16.34
Pressure-temp：ASME B16.34、API608
Face to Face：ASME B16.10、GB/T 12221
Butt welding end form：ASME B16.25、ASME B31.4/31.8
Test & check：API 598、API 6D、GB/T 13927
Fire resistance test：API 607、API 6FA
Performance Parameter
Nominal diameter：DN32~150mm
Nominal Pressure：PN4.0MPa
Applicable media：Water, oil, natural gas and acid-base medium, etc
Applicable temperature：-29≤150℃
