All welded ball valve material:


1): valve body: carbon steel st37.0, a106-b; 20 steel


2): Ball: stainless steel 304 or 316


3): stem: 2Cr13


4): stem seal: perfluoro rubber


5): ball seal: rtfe (PTFE + C)


Standard features of all welded ball valve:


1): diameter: DN15 ~ 1000


2): pressure: PN 16 ~ 40


3): working temperature: - 29 ℃ ~ + 200 ℃


4): gas transmission pipeline welding ball valve applicable medium: Oil / gasoline, LNG / LPG, petrochemical industry, steel plant, heating pipeline, etc.


5): operation mode of welding ball valve of gas transmission pipeline: handle, gear (vertical / horizontal), electric, turbine


All welded ball valve application:


1): urban gas: gas output pipeline, main line and branch supply pipeline, etc.


2): central heating: output pipeline, trunk line and branch line of large heating equipment.


3): heat exchanger: opening and closing of pipes and circuits.


4): Iron and steel plant: various fluid pipes, waste gas selective discharge pipes, gas and heat supply pipes, fuel supply pipes.


5): all kinds of industrial equipment, all kinds of heat treatment pipes, all kinds of industrial gas and thermal pipes.


Performance of all welded ball valve:


1): it does not need maintenance, adjustment and lubrication, is easy to install, and operates reliably for a long time under low operating cost. The surface adopts spray plastic treatment technology, with beautiful luster, which has been in the leading position in China.


First level. There will be no external leakage. The valve body is welded, so the valve is light and easy to insulate. It is very simple to install the regulating mechanism, and the operating handle can


Remove, reverse and install.


2): since the valve seat is composed of carbon fiber reinforced Teflon sealing ring and disc spring, it has strong adaptability to the change of pressure and temperature, and it is not suitable for the range of pressure and temperature indicated.


There will be any slippage.


3): the machining process of the sphere is tracked and detected by an advanced computer detector, so the machining accuracy of the sphere is high.


4): as the valve body material is the same as the pipe material, there will be no uneven stress, and there will be no deformation due to the earthquake and when the vehicle passes the ground, so the pipe is resistant to aging.


5): integrated full welding, equal diameter and variable diameter channel, fixed ball and floating ball, double piston effect sealing system, automatic


Inject sealant type bearing.


6): in order to prevent static electricity, steel balls and springs are respectively installed between the valve rod and the ball, and between the valve rod and the packing box, which can keep all parts of the valve conducting with the valve body and let the current pass through.


Zone, discharge static electricity. Not only to prevent fire, but also to prevent corrosion, to achieve temporary cut-off, so that timely maintenance.


7): the anti stripping function of the valve stem is because the valve stem is affected by the internal pressure of the valve, which always produces the force of disengagement, so the valve stem is designed as an anti stripping structure.


8): push the pressure to the valve rod with the low friction material thrust washer support, so that the valve rod only plays the role of transmitting torque.