Applicable to urban gas pipeline, large heating pipeline,various
liquid,gas,and heat supply in steel works, and fuel supply lines.
Formed by steel plates and group welded, the valve and valve body
is able to avoid leakage of any medium. The spring-loaded valve
seat is more adaptable to pressure and temperature changes, ensures
the close contact between sealing ring and the ball, and achieves
flexible open/close operation under the premise of tight sealing.
Both the ball and the valve stem are processed with precision
machining tools to minimize the friction coefficient between
contact surfaces and improve the sealing performance and the
operating torque of the valve.
VARIOUS OPERATING METHODS
LUFENG provides all kind of valve actuators, includeing manual,
pneumatic, electric, hydraulic , and pneumatic-hydraulic. The types
will be chosen in accordance with valve torques.
DESIGN OF UNDERGROUND WORKING CONDITIONS
For valves buried undergroun, they have been provided with extended
fod , extended pipe for maintenance purpose(exhaust pipe on
bothsides of the passageway+valve seat injection pipe on both
sides+discharge pipe at the bottom of the valve body) and control
valve, so that the valve operating position above the ground
facilitates operation. The surface of the valve has been coated
with anti-corrosion asphalt coating protection or epoxy resin
protection, on-site pipeline bridging, and cathodic protection to
adapt to underground environment.