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Ball valve leaving factory qualified but on-site leakage often due to installation stress leads to valve body deformation >0.3mm, actuator...

Installation actuator after valve leakage mostly due to torque setting error (deviation >10%), valve stem coaxiality offset >0.5mm or not...

Installing ball valve when need guarantee pipeline coaxiality deviation ≤ 1mm, flange parallelism error ≤ 0.2°, avoid forced alignment produce...

Ball valve before installation should check specification and pressure grade, perform appearance and sealing face inspection and use 0.5MPa air...

Ball valve field installation needs to ensure horizontal or vertical direction deviation is less than 1°, flange bolts according to...

The manufacturer conducts a fire test on API 6D ball valves according to API 607, pressurizing the valve to 75%...

For API 6D ball valves to undergo API 607 ​​fire resistance testing, design drawings, material certificates (EN10204 3.1), pressure rating...

Adopt metal + soft seal dual structure, after fire burn metal seal leakage ≤ 100 ml/min;Packing select graphite withstand temperature...

When purchasing industrial ball valves, focus on verifying that the hydrostatic test reaches 1.5 times the design pressure, the pneumatic...