High-performace pipeline ball valve DN 4 inch

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Products Description of pipeline ball valve

Body of high-performance pipeline ball valve is forged structure.The connection type for body and vice-body can be BB(bolted connection)and WB(welded connection).The WB(welded connection)and the LWB(Fully-welded extended stem)structure isadopted for buried ball valves,as shown below.

High performance pipeline ball valve series has the feature of strength,high perfect sealing,maintenance-free,long life and so on.The production of this series ball valve adopts the international advanced ball valve design and manufacturing technology,selects high-quality materials in accordance with the standard selection of materials and combines with advanced materials forming forging technology.At the same time,with the years of ball valve design and manufacturing experience,the use of advanced processing and manufacturing equipment and production and processing technology,through the first-class inspection and testing equipment and instruments,perfect quality assurance management system and excellence in the production of high-performance philosophy can ensure the quality of valves.This series of valve has the performance of a high strength,defect-free forging body,excellent sealing performance,even at maximum pressure difference(full pressure),it will still be able to ensure that seal without leakage,after frequent switching action to realize a safe usage in the transportation of oil,natural gas,coal gas,and other special medium transportation pipeline.

Performance & Dimensions of pipeline ball valve

Standard Criteria

 ASME/ANSI/API   customize   

Pressure Rating

 1.6 Mpa  2 Mpa  5   Mpa  8 Mpa  10 Mpa  16 Mpa  25   Mpa  42 Mpa

 150 Class  300   Class  600 Class  900 Class  1500   Class  2500 Class customize 

Valve Size

 50 mm  80 mm  100   mm  150 mm  200 mm  250 mm  300   mm  350 mm 400 mm  450 mm  500   mm  550 mm  600 mm  650 mm  700 mm  750   mm 800 mm  850 mm  900 mm  1000   mm  1050 mm  1200 mm  1400 mm

 2 inch  3 inch  4   inch  6 inch  8 inch  10 inch  12   inch  14 inch  16 inch 18 inch  20   inch  22 inch  24 inch  26 inch  28   inch  30 inch  32 inch  34 inch 36   inch  40 inch  42 inch  48 inch  56   inch customize 


 Electric  Handle  Hydraulic  Pilot-hydraulic  Pneumatic customize   


 Butt Welding  Flange   RF  Flange RTJ customize 


 Gas customize 

Medium Temperature

 -29~150  -46~150 customize   

Application Fields

 Electricity  Petrochemical  Power   Station customize 

Component Materials of pipeline ball valve

1-Body Material

 A105  A350-LF2-M customize   


 A105  A350-LF2-M customize   


 4410+ENP customize 


 A350   LF2+ENP  A105+ENP customize 

5-Material of Valve Seat

 fluorine rubber customize 


 Nylon  PTFE  peek  DEVLON customize   

6-Seat ring

 A105  ENP+A322   4140 customize 

7-Packing chamber

 A322 4140+ENP  A105 customize   

9-Stem gasket

 RPTFE customize 


 graphite  PTFE customize   

11-Packing gland

 ENP+A350   LF2  ENP+A105 customize 

12-Body gasket

 Stainless   steel+graphite customize 


 Stainless steel+graphite customize   

14-Top flange

 A105  A350   LF2 customize 

30-Supporting board

 A105  A350   LF2 customize 



55-Seat spring

 B637 Inconel X750 customize 

56-Anti-static spring

 B637 Inconel X750 customize 


 A320   L7  A193-B7  A193-B7M customize 


 A193-B7  A193-B7M  A320   L7 customize 


 fluorine rubber  hydrogenated   nitrile butadiene rubber customize 

63-Fire-safe ring

 flexible graphite customize 


 hydrogenated nitrile butadiene   rubber  fluorine rubber customize 


 fluorine rubber  hydrogenated   nitrile butadiene rubber customize 


 fluorine rubber  hydrogenated   nitrile butadiene rubber customize 


 A193-B7M  A320   L7  A193-B7 customize 


 A194 2HM  A194 4  A194   2H customize 


 A322 4140 customize 

72-Locating pin

 A322 4140 customize 

73-Locating pin

 A322 4140 customize 

80-Seat injection valve

 WCB+ENP customize 

81-Stem injection valve

 WCB+ENP customize 


 PTFE+Stainless steel customize 

83-Drainage valve

 Stainless steel customize 

84-Vent valve

 Stainless steel customize 




 Stainless steel customize 

Standards Applied of pipeline ball valve

Design Standard

 API 6D customize 

Connection Standard

 ASME B 16.25-2007  ASME B 16.5  ASME   B 31.4  ASME B 31.8  DIN  GBGB/T  JBJB/T JIS customize   

Test Standard

 API 6D customize 

Face to Face

 API 6D customize 

Pressure-temperature rating

 ASME B 16.34-2004 customize 


 MSS SP-25 customize 

Images of pipeline ball valve:

High-performace pipeline ball valve DN 4 inch

High-performace pipeline ball valve DN 4 inch

High-performace pipeline ball valve DN 4 inch

FAQ of pipeline ball valve:

Q1:I can’t find the type of steel check valve which I need. what can I do?

The chart above only lists out some common composition of steel check valve parts.We may provide other different parts material composition according to the customer's request or the actual valve working condition.


Q2:Which certification do your products pass?

  Our products are in accordance with ISO 9001ISO 14001API 6AAPI 6DTS CEAPI607/6FA/BS6755.


Q3:How can I place an order?

  The only one thing you should do is to tell us the sepecification about type quantity and  mode of transportation, then we will send you quotation within 24 hours.

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Q:what is the definition of differential pressure for valves?
Differential Pressure Definition
Q:Question about Trumpet Valve Stem How to Replace it?
I hope you have a Bach trumpet, because each valve stem is specific to a particular maker and even to specific models. So, if you don't have a Bach trumpet it is very likely that the stem won't fit. If you cannot remove the valve stem with your hands you can try soaking the joint with oil and/or warm water and dishwasher detergent. You should give yourself a couple of days to see if you can loosen them up. Do not use tools--no screwdrivers, no pliers, no vices, no strap wrenches--if you don't know what you're doing you stand to damage the very fragile valve. You may need to take it to a tech--remember you're trying to avoid a $100+ dollar bill for repairing a damaged valve.
Q:my water shut off pvc valve will not move to shut off position?
Jeff B is right, the screw you see is for taking off the handle, nothing more. A quarter turn should do it. If it doesn't turn, lightly tap on it as you do.
Q:Why does plumbing code require a gate valve for the main shutoff?
no as long as the gate valve is there. gate valves are pressure rated and seal better and are made from hardened steel so it will usualy seal when others have a seat [made from brass] that can wear out and leak even ball valves have a ceramic or plastic seal and are made from brass or soft steel
Q:The component in the cylinder head that holds a valve in place and prevents the valve stem from moving side?
either valve guide or valve seat
Q:Installing new kitchen faucet/shut off valves?
Double Shut Off Valve Dishwasher
Q:how to adjust a 2001 kawasaki zx9 ninja valve?
As Bob said, you had probably best bite the financial bullet and get someone experienced to do it. With the bucket over shim designs, the shim you need to change is underneath the bucket, the device that rides against the camshaft. To change the shims, you have to remove the camshafts and when you replace them, you must get them timed exactly right or else you can have pistons hitting valves..not good at all. They put the shim under the bucket to keep the cam from spitting the shims out through the valve cover at high rpms. The older 2 valve 900-1000-1100-1300 Kaws have shim over bucket and can be changed with a special $20 tool, a little screwdriver and small magnet . However, you might consider getting a shop manual and checking the valve clearance yourself. If all are within specs, then there is no need to take it to a shop. My old KZ1000 went something like 110,000 miles and only need two shims changed in all that time, so your bike could very well be ok.
Q:what is the reason why non-return valves are installed in the discharge lines of the sea water pumps? ?
..?..non-return valves..? I will assume that your 'non-return valves', are what is also known as check valves. Check valves allows flow in one direction only. These are used wherever you need to prevent backflow into the system, or to maintain a charged circuit with fluid, until you choose to unload(depressurize ) it. Now, why are they used in discharged lines of salt water, basically to prevent backflow....reason not known, here , requires usage info.
Q:Head gasket and Valve cover gasket the same?
no a head gasket fits betweem the head an the block. the valve cover gasket goes on the cover over the valves or rocker cover are same its sits on the very top of engine
Q:Laundry room hot water valve leaking?
Of course, the best solution is to replace the valve. Valves are either soldered on or attached to the pipe with compression fittings. If the pipe is copper and you see a silver band of metal between the pipe and the valve, that's probably solder. In this case, it would be best to let a plumber replace the valve. Otherwise, if your valve is attached with a compression fitting, you can get a new valve at your local home improvement store in the plumbing section. I recommend getting a 1/4 turn, steel ball valve. These are very simple and reliable valves. When you remove the old valve, be sure to also remove the compression washer and shoulder nut as well. You'll want to use the new ones that come with your valve. I also recommend using Teflon tape to wrap the threads of your new valve, at least two times in the direction of nut tightening. This will reduce the chance of leakage through the threads. Tighten the compression washer between the valve and the shoulder nut snugly. Make sure the valve is off. Turn the water on and check for leaks. If you see periodic drips, tighten the shoulder nut until the dripping stops. The other cheap and dirty alternative is to get a cap for your existing valve. These are also available in the plumbing section of your home improvement store. They run about $2-3, I believe, and are threaded onto the faucet where your hose attaches. That will keep your leaking valve from dripping all over the place.

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