float ball valve ； ball valve ; CLASS150--2500 ball valve
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 pc
- Supply Capability:
- 30000 pc/month
OKorder Service Pledge
OKorder Financial Service
You Might Also Like
Specification
Normal pressure or rating | Class 150-Class 2500,JIS I0K - 20K,PN 10 - PN 420 | |||
Normal diameter or bore | NPS 1/2-40,DN6-1000 | |||
Applicable temperature | －196℃-540℃ | |||
Operation type | Manual,worm gear,pneumatic,electric | |||
Standards and specification
| Design& manufacture
| API6D.API608.ASMEBI6.34,ISO5211,ANSI/AWWAC507,BFCI70-2.MSSSP-72,BS5351,B56364,NACE MR0175
| Connection ends
| ASMEBI6.5,ASMEB16.47.API 605,MSS SP-44,ISO 7005-1,JISB2238,BS12627,ASMEBI6.25,ASMEB16.11,BS 12760 |
Face to face dimension | ASMEB16.10,ISO 5752,BS 558, BS12982
| Testing &inspection | API598,API6D,API607,API6FA,BS6755.BS12569,MSS SP-82,MSS SP-6I | |
Reliable seat seal
The structure design of elastic sealing ring has been adopted for floating ball valves. This seat design features a bigger sealing pressure ratio between the ring surface and the ball when medium pressure gets lower, where the contacting area is smaller. Thus, the reliable seal is ensured. When the medium pressure gets higher, the contacting area between seat ring and ball becomes bigger as the sealing ring transforms elastically to undertake the bigger force 5 pushed by the medium without any damage.
Fire safe design
With the valve heated in a fire application, the non-metal material parts such as seat sealing ring of PTFE, stem back seat gasket, gland packing, and the sealing gasket between body and bonnet might disintegrate or be damaged due to high temperature. Specially designed structure of auxiliary metal to metal seal is provided to effectively prevent both internal and external leakage of the valve. As required by customers, floating ball valves with fire safe design can meet the requirement of API 607, API 6FA, BS6755 and B/T 6899
Reliable stem seal
The blow-out proof design has been adopted for the stem to ensure that even if the pressure in the body cavity is risen accidently and the packing flange becomes invalid, the stem may not be blown out by medium. The stem features the design with a backseat, being assembled from underneath. The sealing force against the backseat gets higher as the medium pressure becomes higher. So the reliable seal of the stem can be assured under variable medium pressure
Anti-static feature
The traditional packing flange design has been improved to be of two piece structure, i.e., being as a packing flange plate and a follower, the latter contacts the flange plate with spherical surface. Thus, the follower remains vertical always, and is lined internally with a PTFE bush to prevent the galling against and friction between the stem, which can also reduce the operation torque of the valve.
The traditional packing flange design has been improved to be of two piece structure, i.e., being as a gland flange and gland, the latter contacts the gland flange with spherical surface. Thus, the gland remains vertical always, and is lined internally with a PTFE bush to prevent the galling against and friction between the stem, which can also reduce the operation torque of the valve.
- Q: Ball valve specifications are represented by 2 FF,
- FF refers to the form of connection between the valve and the pipe lineFF, or Flat Face, is a common form of flat flange connection
- Q: Gate valve, butterfly valve, ball valve advantages and disadvantages? What other commonly used valves?
- Stop valve: a valve that closes the valve and moves along the center line of the valve seat. According to this form of valve movement, the valve seat opening change is proportional to the valve stroke. Because of the valve stem to open or close the trip is relatively short, but very reliable cut off function, and because changes in the valve seat and the valve stroke is proportional, is very suitable for flow regulation. Therefore, this type of valve is very cooperative for cutting or regulating and throttling.Advantages: in the process of opening and closing, because the friction between the valve and the sealing surface of the valve body is smaller than that of the gate valve, the utility model has the advantages of wear resistance. Second, the opening height is generally only 1/4 of the seat channel; therefore, it is much smaller than the gate valve; usually there is only one sealing surface on the valve body and the disc; therefore, the manufacturing process is better and the service is easy to maintain. Because its packing is generally a mixture of asbestos and graphite, it has a higher temperature resistance. Steam valves are normally used with stop valves.Disadvantages: as a result of the medium through the valve flow direction has changed, so the minimum flow resistance valve is higher than most other types of valves; second, due to longer travel, opening slower than the ball.
- Q: What are the advantages and disadvantages of the two functions of the pneumatic ball valve actuator?
- The working principle of the single action mode:When the air pressure from the air intake (2) between the two piston into the cylinder cavity, the two ends of the cylinder piston moves to the separation direction, forcing the ends of the compression spring, both ends of the air chamber air through the air intake (4) discharged, while making two piston rack synchronous drive output shaft (gear) counterclockwise. In the air pressure through the solenoid valve for cylinder piston to move backwards, two to the middle direction in the spring, the middle air cavity air from the air outlet (2) discharged, while making two piston rack (gear) synchronous drives the output shaft to rotate clockwise. (if the piston is mounted in opposite directions and the spring is reset, the output shaft becomes reverse rotating, i.e., single acting reverse type)
- Q: Ball valve 11F, 41F, 11H, 41H
- The ball in, 11F first said the connection mode of "1" threaded connection, second said that the structure of "unit valve 1" straight through, third said "F" said sealing material is PTFE seal;
- Q: What is the principle of forced sealing ball valve? How to achieve mandatory sealing function? Is it suitable for high pressure conditions?
- With spring to achieve forced sealing, not applicable to high pressure
- Q: To help explain the meaning of the ball valve Q11H-16H, combined with the actual, such valves have wood?
- JB T308-2004 valve model preparation method and "GB1048-2005 pipe element nominal pressure definition and selection", there are various types of valve interpretation:Q11H-16HQ: valve type: (Q) ball valve1: connection form: (1) internal thread1: structure form: (1) through flow channelH: sealing surface or lining material: (H) Cr13 stainless steel16: pressure code: (16) 1.6MPaH: body material: (H) Cr13 stainless steel
- Q: The valve nominal 1/2, 3/4 is how much?
- The 1 point is DN25 mm1/2 is DN15 mm3/4 is DN20 mm
- Q: The two valves are available for the flow of the electromagnetic valve switch, I contact more, found for water solenoid valve are caged water, to repair several times because of impurities or newly installed pipeline with raw materials flowing through the valve, close the valve body when not to rely on Yan, a seepage water tank to diffuse phenomenon!I am looking for a replacement, I think the electric valve should be a good choice, not used to a conclusion.Please use the electric ball valve to talk about friends, or for the two kinds of friends who have an understanding to talk aboutOr there is no better substituteThere seems to control the solenoid valve and electric valve is not the same, the solenoid valve is normally open and closed to control the electric valve is controlled by the trigger (like), if used to replace it, what is the controller?
- I think you should use the solenoid valve is diaphragm type, and not particularly good products, diaphragm solenoid valve in the closed position when the diaphragm is easy to change, resulting in pipe die, or medium impurities caused the pilot hole is blocked, the valve will not move, so the diaphragm solenoid valve. Is there a film guide card member, so that each position of the diaphragm in the correct position, but the pilot hole is not a solution, of course, you can use direct action solenoid valve, such problems are solved. The electric ball valve than the pilot solenoid valve in this respect, but the cost of this fear is much higher, especially the pipe diameter is not so, it does not pay!
- Q: Hello, I would like to ask the household tap water valve selection of stainless steel ball valve or brass ball valve is better, thank you
- I have used two kinds, but stainless steel gate valve is better. Note that it must be made of stainless steel 304. I bought more than 300 yuan a gate valve. Total valve, no way to save money.
- Q: What does "q41f46-16c-dn40" mean?
- DN40 refers to the nominal diameter, 16C represents 16 kg of pressure, carbon steel material F46 stands for fluorine
Send your message to us
float ball valve ； ball valve ; CLASS150--2500 ball valve
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 pc
- Supply Capability:
- 30000 pc/month
OKorder Service Pledge
OKorder Financial Service
Similar products
Hot products
Hot Searches
Related keywords
