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Coal Chemical
Valve:
Ball Valve
Gate Valve
Globe Valve
Check valve (Non-Return valve)
Butterfly Valve
Diaphragm Valve
Plug Valve
Solenoid Valve
Safety Vave
Other
Knife Gate Valve
Power Station Valve
Steam Trap
Service:
Subsea Systems(Marine)
LNG
Gas & Liquid Transmission Lines
Refining&Petrochemical
Coal Chemical
Mining&Minerals
Water Treatment
Power Station
Fire Safe
Condition:
Selection principle of welding type needle valve:
1, low temperature medium pipe system and device, it is appropriate to choose with a low temperature needle valve cover.
2. In the pipeline system of catalytic cracking unit of oil refining unit, lifting rod type needle valve can be selected.
3, the chemical system of acid and alkali and other corrosive media device and pipeline system, it is appropriate to choose austenitic stainless steel manufacturing, ptFE seat sealing ring of all stainless steel needle valve.
4, metallurgical systems, power systems, petrochemical installations, urban heating system in the high temperature medium of the pipeline system or device, can choose metal to metal sealing needle valve.
5, the need for flow regulation, can choose worm gear worm transmission, pneumatic or electric with V-shaped opening regulating needle valve.
6, oil, natural gas transmission main line, the need to clean pipelines, and buried in the ground, use full size, all welded structure of the needle valve; Buried in the ground, select full size welded or flanged ball valves.
7, the finished oil pipeline and storage equipment, choose the needle valve flange connection.
8, city gas and natural gas pipeline, the choice of flange connection and internal thread connection of the needle valve.
9, metallurgical system in the oxygen pipeline system, it is appropriate to choose after strict degreasing treatment, flange connection of the needle valve.
Top Entry Trunnion Mounted Ball Valve
The top mounted ball valve is easy to disassemble and quickly maintain on the pipeline. When the valve malfunctions in the pipeline and needs to be repaired, there is no need to disassemble the valve from the pipeline. Simply remove the middle flange bolts and nuts, remove the valve cover and valve stem assembly together from the valve body, and then remove the ball and valve seat assembly. The ball and valve seat can be repaired online. This type of maintenance saves time and minimizes losses in production.