Products Name:Special Ball Valve for Gas
Product description of Special Ball Valve for Gas
1, Double blocking and discharging function: The fixed ball valve adopts the spring to preload the floating valve seat. When the valve is fully open or fully closed, the valve seat on the upstream and downstream sides block the fluid and the reed of the valve body cavity is drained through the discharge valve .
2, automatic pressure relief function: the valve body cavity to stay the medium temperature rise caused abnormal boost, without going through the safety valve, and the valve seat function can automatically pressure relief, which to ensure the safety of the valve in the delivery of liquid medium Sex is very important.
3, fire safety structure: the valve has a fire safety function, its design, manufacturing are to follow the API 607 and API 6FA specifications.
Product Range of Special Ball Valve for Gas
Fixed ball valve for Class150 ~ Class1500, PN16 ~ PN100, JIS 10K ~ JIS 20K of the various pipe, temperature: -196 ~ 350 ℃, used to cut off or connect the media in the pipeline, the choice of different materials, can be They are widely used in petroleum refining, long-distance pipeline, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, steel and other fields for transporting water, steam, oil products, nitric acid, acetic acid, oxidizing media and urea. Fixed ball valve drive for worm gear drive, manual, pneumatic or electric. Fixed ball valves generally use flange connection, but also can be welded connection.
Principle of natural gas of Special Ball Valve for Gas
The closure of natural gas ball valve is a ball, the ball around the valve body for rotation to achieve open, close a valve. Ball valve is mainly used in the pipeline to cut off, distribute and change the flow direction of the medium.
Floating ball valve with a special design double bevel elastic ring, effectively reducing the friction between the ball and the seal, reducing the operating torque. When the medium pressure is small, the contact area of the seal ring and the sphere is small, so a larger seal pressure ratio ensures a reliable seal. When the media pressure is large, the contact area of the seal ring and the ductile iron also increases accordingly. Therefore, the ring can withstand greater thrust without damage, to ensure reliable sealing.
Characteristics of natural gas of Special Ball Valve for Gas
Design Feature Of Special Ball Valve For Gas
1, the operation is labor-saving: the ball is supported by the upper and lower bearings to reduce the friction and eliminate the excessive sealing torque caused by the pressure of the inlet and the seal seat.
2, the sealing performance is reliable: PTFE single-material sealing ring embedded in the stainless steel valve seat, the metal valve seat with a spring to ensure that the end of the seal enough pre-tightening force, the valve sealing surface wear during use, under the spring Valves continue to ensure good sealing performance.
3, the fire structure: In order to prevent the emergence of sudden heat or fire, teflon seal ring burned, a larger leak, and to promote the fire, the ball and valve seat set between the fire seal ring, the seal burned, In the spring force, the valve seat ring quickly push the ball, the formation of metal and metal seals, play a certain degree of sealing effect. Fire test in line with APl6FA and APl607 standards.
4, automatic pressure relief function: When the valve medium chamber stagnant abnormal increase in pressure exceeds the pre-spring force, the seat back from the ball, to achieve the effect of automatic relief pressure relief valve seat automatically complex
5, the drain pipe: the body is set up excretion holes up and down, can check the valve seat for leaks, at work, the valve is fully open or fully closed, the removal of the cavity pressure can be directly replaced filler; can discharge cavity Retention, reduce the media on the valve pollution.
Performance parameters of Special Ball Valve for Gas
Natural gas, liquefied petroleum gas
Carbon steel cast steel
/Chrome nickel molybdenum stainless steel
Packing & Delivery
1.What is the MOQ for your products?
There is no special requirement for standard products?
2. Why your quotation is different with the price listed in web?
We have different price policy to the buyer with different quantity and demand. you can contact with me directly to get a cheaper price.
3. How many days you can send order after payment?
For standard products, we can send around 2~3 days after payment.
4. Do you accept OEM?
Yes, and we have 12 year of OEM service.
5. Do you have any international certificate?
A: Yes,we have API, ISO and etc.