trunnion ball valve ; ball valve ; CLASS150--2500 ball valve
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- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 pc
- Supply Capability:
- 1000 pc/month
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Item specifice
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 | |
Urgent grease injection device
According to customers requirement, the trunnion ball valves made by our company are provided with devices for urgent grease injection, which are on both the stem and seat for the trunnion ball valves of DN 150mm(NPS6), and in the body cavity for the valve of DN 125mm. When the O ring of stem or the body seat ring is damaged due to accident the medium leakage between body and stem can be prevented by injecting the sealing grease through the device
Double-block and bleed functions
In general, trunnion ball valve features the front ball sealing design structure. Each seat of the ball valve can separately cut off the medium at both inlet and outlet of the valve to realize double-block functions. When the ball valve is closed, body cavity and two of the body ends can be blocked with each other even if both the inlet and outlet are under pressure, when the medium left in the body cavity might be bled through the relief valve
Fire safe design
With the valve heated in a fire application, the non-metal material parts such as seat sealing ring of PTFE, O ring for the stem, and sealing gasket for body and bonnet, might be damaged due to high temperature. Special design of auxiliary metal to metal or the graphite seal is provited for the trunnion ball valve to effectively prevent both internal and external leakage of the valve. As required by customers fire safe design for the trunnion ball valve meets the requirement of API 607, API 6fa, BS 6755 and JB/T 6899
Self-relief in the body cavity
As the liquid medium left in the body cavity gasifies due to increased temperature, the pressure in the body cavity becomes abnormally higher, when the medium itself in the cavity would propel the seat and self-relieves the pressure to ensure the safety of valve
Trunnion ball valve with the Bi-sealing design structure, i.e. seat se aling in front of the ball and seat sealing behind the ball
According to some special working conditions and customers requirement, We has provided the trunnion ball valve with the Bi-sealing design structure, i.e. seat sealing in front of the ball and seat sealing behind the ball thus the reliable sealing of the valve is ensured because the valve can perform normally even if one of the effective sealing designs becomes lost due to the abnormal condition
Regarding the seat in front of the ball, the piston effect formed by the area difference between D1 and D2, plus the pre-tightened force of a spring would cause the seat in front of the ball by the pressure difference of the medium before and after the valve to touch the ball closely to form the tightness, of which the sealing force will become bigger as the pressure difference gets hig her
Regarding the seat after the ball, the piston effect formed by the area difference between D2 and D3, plus the pre-tightened force of a spring would cause the seat behind the ball to touch the ball closely to form the tightness, of which the sealing force will become bigger as the pressure difference gets higher
Blow-out proof stem
Blow-out proof structure is provited with for the stem which is positioned by the up-end cap and screw, being guaranteed not to be blown-out by the medium even if at abnormal rise n pressure in the cavity
Anti-static design
The ball of the trunnion ball valve gets close contact with each othe th rough the trunnion, adjusting cushion, and down-end cap, the passage of static electricity thus forms together with the valve, which may le ad the static electricity caused by sparks generated by friction between the ball and seat during on and off perform ance to the ground to prevent the possible risk of fire or explosion.
- Q:Butterfly valve, globe valve, ball valve used what is different
- Butterfly valve, globe valve, ball valve used in different occasions:1. valve (Butterfly Butterfly) refers to the closure of parts (valve or butterfly plate) for the disk, around the valve shaft to achieve rotation and closure of a valve, the main cut off on the pipe and throttling. Butterfly valve headstock is a disc shaped disc, in the valve body around its own axis of rotation, so as to achieve the purpose of opening or closing or regulation. Butterfly valve is fully open to fully closed is usually less than 90 degrees, butterfly and butterfly stroke itself has no self-locking capability, in order to position the disc to install the valve stem on the worm gear. Using worm gear reducer, not only can the butterfly plate have self-locking ability, so that the butterfly board stops at any position, but also can improve the operation performance of the valve.Industrial butterfly valve features, capable of high temperature, applicable pressure range is higher, the valve nominal diameter is large, the valve made of carbon steel, the valve plate sealing ring using metal rings instead of rubber rings. Large high temperature butterfly valve welded by steel plate, mainly used for high temperature smoke duct and gas pipe.
- Q:What are the CF8 and CF3M marks on the stainless steel ball valves?
- The valve body material. With the material composition American Standard... See the relevant information
- Q:Copper ball Q11F-20T is what mean?
- Q ball valve1 internal thread1 throughF PTFE soft seal20=20PA=2.0mpa pressureT copper material
- Q:DN20 copper ball valve with large PPR converter connector
- What do you see a ball valve, PPR ball valve, ball valve with internal screw threads, ball valves, but if you look at the butt of the ball size, if the ball is 20. The tube is 20, then the 20*1/2 internal thread can be directly on the butt.
- 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 does the RTFE say in the ball valve?
- RTFE reinforced PTFE is more wearable than PTFETeflon PTFEThe seat of tetrafluoroethylene specified for a temperature range of ~200 DEG C -32. High temperature resistance and chemical resistance. Because of its high density and good permeability, PTFE can also prevent the corrosion of most chemical media.Conductive PTFE is an improved PTFE product that allows the current to pass through the lining and thereby cancel the insulation properties of ptfe. Because of its conductivity, conductive PTFE can not be checked by edm.+ reinforced PTFE RTFERTFE is a modification of PTFE material. Pure PTFE although very low coefficient of friction (0.02~0.04) but the wear volume is great, but also because of its easy creep, poor mechanical properties, low bearing capacity, poor dimensional stability characteristics such as friction material has great localization. Only modified by compound method to meet the special requirements of all walks of life sealing material on the wear resistance, to improve the wear resistance of PTFE, can be incorporated into some wear-resistant materials such as glass fiber, carbon fiber, graphite, molybdenum disulfide, bronze powder and some organic compounds, making them reticular junction formed in the PTFE layered structure so as to improve the the stiffness, thermal conductivity, creep resistance, and greatly improve the wear resistance.PTFE is composed of tetrafluoroethylene monomer polymerization of the polymer, the wax is similar to a PE transparent or opaque, its density is 2.2g/cm3, the water absorption rate of less than 0.01%. Its chemical structure is similar to that of PE, except that all hydrogen atoms in polyethylene are replaced by fluorine atoms. Because the C-F bond is high and stable in performance, it has excellent chemical resistance
- Q:Please professional help guide: accidental discovery of connection pipe and valve (mark position diagram) can rotate, but there is no problem with the 10 Water Leakage.Please professional help guide: accidental discovery of connection pipe and valve (mark position diagram) can rotate, but there is no Water Leakage problem, while the valve under the same position is fixed and can not rotate, will this situation is normal? Is it possible to leak water in the future?
- Abnormal, should be fixed, a long time may leak.
- Q:Three electric ball valve type T and type L what is the difference?
- Ball valve: including straight through, three, etc.. Three way ball valve: including L type, T type. Therefore, the three way ball valve is a kind of ball valve! But the regular ball valve means straight through.
- Q:Q41F-16-64P this is the ball valve, what type, please answer in detail, thank you!
- Q--- ball valve4---- flange connection1----- ball valve is floating ball (ball valve has floating ball and fixed ball points, 7 represents the fixed ball)F----PTFE- PTFE seal (PTFE PTFE),16-64---- ball valve nominal pressure is 16-64 kg (1.6-6.4Mpa)P---- ball valve body material is 304 stainless steel
- Q:Is a plastic ball valve, connecting France is hot melt.
- The valve manufacturing process, through strict raw material quality audit, hold the raw materials, and improve the machining tool and processing technology, to ensure the quality of product, market, to win the trust of customers through technology and excellent quality, so that enterprises can use the electric ball in an invincible position.
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trunnion ball valve ; ball valve ; CLASS150--2500 ball valve
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 pc
- Supply Capability:
- 1000 pc/month
OKorder Service Pledge
OKorder Financial Service
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