Full Welded Forged Steel Ball Valve DN 36 inch
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- Shanghai
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- TT OR LC
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- 10 pc
- Supply Capability:
- 100 pc/month
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Design Features of full welded forged steel ball valve
The body of ball valve is full welded,selects high quality forged material,and adopts the advanced forged forming technology to form two semi-spheres which are welded into a whole in the middle of the body.This welding technology differentiates the ball valve form others,and makes the valve more spherically,so the valve structure is more compacter,lighter and stronger.Besides,the middle direct welding realize highly accurate valve body manufacturing,makes fully and completely sealing between the seat and ball.The full welding instead of bolts completely avoids the outside leakage,so ball valve is the ideal product for under-ground,offshore working platform and under-sea equipments.
Adopting fixed plates or trunnion to support the ball
The top and bottom of the ball is supported by upper and lower fixed plates or stem and trunnion,and the ball is accurately placed in the center of the ball valve to achieve complete seals and precise movements.When plate adopted,the force exerted by the medium to the ball is distributed via the plate to the left and right bodies,so that the stem does not bear the blending moment from the medium,but only the torque from the ball rotation during the opening/closing of the valve.The low-friction PTFE Teflon composite bearings installed between the ball axis and fixed plate and between the stem and the trunnion can absorb ball moving action caused by the pressure of the medium.This structure brings stable actions and easy operations for the ball valves,and the required operation torque can be reduced,so smaller actuators can be used,and the cost is cut down.
ball valve seat is floating structure,means the seat can move along the medium direction,so that the seat can fit against the ball all the time.
（Ⅰ）Double piston effect structure seat of full welded forged steel ball valve
Seat design is special double pistons effect structure,it can ensure the seal wherever the medium flows into the ball valve.
（Ⅱ）Seat multistage seal strucute of full welded forged steel ball valve
As following graphic instruction,on seat bearing ring,set two soft sealing rings(A and B)and metal sealing spherical surface which can seal with the ball.Seat ring A is spring loaded,which seals the surface with the ball tightly to the surface to form an initial seat;When there is pressure generated from medium,the piston force is generated to make seal ring A elastically deformed and seal ring B fit the surface of the ball surface due to the piston effect caused by area difference,thus the second seal forms.When the medium pressure is rising.It will generate huge pressure to seal ring A and seal ring B,so the two seals have a greater elastic deformation,then metal seal ball surface compact with ball surface to form the third level of metal to metal seal.
（Ⅲ）Secondary seat seal device of full welded forged steel ball valve
As the above graphic instruction,the secondary seal device(seat grease injection valve)can be chosen according to the actual working condition,medium requirement,seal requirement,etc.Seat ring grease injection valve is a one-way valve,installed on the body,which can prevent the leakage and inject grease under the outside force.When secondary seal is required,there is a grease injecting channel and hole on the seat ring.The grease can form a seal between the seat and the ball,and then stop the leakage.
Standards Applied of full welded forged steel 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 GB、GB/T JB、JB/T JIS customize |
Test Standard | API 6D customize |
Face to Face | API 6D customize |
Pressure-teperature rating | ASME B 16.34-2004 customize |
Marking | MSS SP-25 customize |
FAQ of full welded forged steel 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 9001、ISO 14001、API 6A、API 6D、TS CE、API607/6FA/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.
- Q:I need to make a ball valve that will open with no manual force but by a motor of some sort to spin it and release water. how do i make a ball valve controlled by preferably a motor or other CHEAP device. I need to do this for less that 20$
- put a slave servo on it,
- Q:How would this affect the functioning of the heart valves?How would this be detected in a routine examination?
- If the heart valves are damaged, they may leak, causing regurgitation of blood. For example, if the mitral valve (between the left atrium and left ventricle) leaks, blood will leak back into the left atrium when the ventricle contracts. This reduces the efficiency of the heart contraction. Regurgitation is easily detected by echocardiography. On routine physical exam it may be detected *if* there is enough leakage/ flow abnormality to cause an audible sound, or murmur, that your physician can hear with his/her stethoscope.
- Q:I have mitral valve prolapse and I don't get why only some people get chest pains? and what causes people to get chest pains with M.V.P (mitral valve prolapse), like me. PLEASE HELP!!!!!!!
- Does Mitral Valve Prolapse Hurt
- Q:One day i was cleaning my trumpet's third valve. when i tried pressing the key it was goig inok but near the end it gets stuck and gets unstuck like a second later.how can i fix this problem with out spending too much money?
- clean the valve and the tube the valve fits in. You will need to take the bottom cap off and with valve oil on a soft cloth (t shirt) wipe out the inside completely wipe down the valve with the cloth also. Clean the spring that pushes the valve back up. Use a tiny bit of vaseline and a liberal amount of valve oil on the valve. Replace everything. If this doesn't do it, take it to the repair shop.
- Q:I had the EGR valve and solenoid replaced and I'm not sure they needed to be replaced.
- they are cheap replace it
- Q:Hi there - We have an old house with galvanized steel pipes. Our main water shut off valve leaks -- the leak is from the packing nut. A plumber came out yesterday and tightened it, and it now barely leaks at all, maybe one drip every 24-48 hours (which it probably has been doing for the 6 years we have lived here, we just didn't know when we bought the place). Rather than replacing the whole valve (which, apparently, has a high liklihood of breaking the pipes in the foundation, requiring jackhammering and whatnot), we are thinking of installing a new shut off valve higher up on the pipe, where I guess it's less likely to break. If we go for the second valve, is there a way to close up that old valve (hydraulic cement, tape, solder, etc.), so it doesn't leak at all? The tiny leak is coming from the stem of the handle - can we remove the handle and cap it off or something? (And thanks to those of you who answered my husband's question about the pipes yesterday!)
- There is a very simple fix to your problem. Get some teflon tape, turn off the valve, back off the packing nut all the way, twirl the tape into a thread (about 4 to 5), wrap it around the stem, reinstall the nut and snug it up. Done! While there is special graphite packing for this purpose, it is usually hard to find and works no better than the tape. You can apply a small amount of vasaline to the stem before you put on the tape to make the valve operate more easily. Only tighten the nut enough to keep it from dripping or it may become hard to open and close. You can easily add a second valve by removing the pipe above the old one and installing a piece of copper with a valve inline. Some will say you need to worry about electrolysis if you screw an adapter into the existing galvanized but I am sure you will replace the old pipe before that is an issue 20 years from now. Good Luck!
- Q:We have a 2008 grizzly 700...Lately when we run the 4-wheeler there is a ticking like noise (as is something were loose). I have been told by a few people that it sounds like the valves need adjusting. Does that sound like what it is? Will it cause any damage to the 4-wheeler if we ride it before we get a chance to adjust the valves?
- They are correct. Well almost. The Rockers are what can be adjusted. They are too far away from the valve and are starting to hammer on them instead of just moving them. You will not cause immediate damage by riding it but you could wear out the rocker completely and drop a valve into the engine which would be very costly. Best to get it repaired soon. Make sure they install new rockers and springs. The main cause for this is poor oil maintenance or poor grade of oil being used. Always use a GOOD synthetic oil and your motor will last 10 times as long
- Q:my EGR valve has gone on my Vauxhall Vectra 2.0 DI LS, 1998, 5 DOOR HATCHBACK, so i am getting a new one next week, what i want to know is, is it an easy job to replace them if so how do i do it? or is it better just to let a garage do the job?
- For the most part, you are wasting your money unless the diaphragm inside the EGR valve is broken. It should be easy to remove it, CLEAN IT, and return it to service. Many times the reason for this valve to get gummed up is either from lack of great lubrication (like Mobil One or ELF oil) or your engine is making TOO much carbon and it is sticking inside the valve. Clean your IDLE AIR CONTROL VALVE, install Bosch Platinum or Iridium plugs (or Den so Twin Tip). This will burn gas more effectively and prevent the accumulation of carbon in the EGR and also inside the WHOLE engine. The EGR valve is easy to reach and remove on most engines using simple hand tools. Read your VECI map to determine it's exact location. It is vacuum operated. On most engines, I just cork up the vto prevent its from working at all. The inside of the engine remains cleaner, and the engine breathes better, too. EGR stands for exhaust gas reciculation. In other words, hot exhaust gas is allowed to re-enter the intake manifold to reduce emissions. By using the fore-mentioned plugs, emission are more reduced, anyway. Good Luck!!
- Q:How do I adjust the valves on a 96 Blazer, 4.3 V6? When we tighten them to torque specs there is no compression, then when we loosen them and get compression, they loosen up to loose after its been running...any help!, THanks!
- THEY AREN'T ADJUSTABLE!!! The problem is the lifters are filled with oil and they won't compress to the point where the valves close all the way. You have to torque them to the proper setting, then turn the engine by hand untill the valves (lifters) have all had time to bleed down in the open position. It's a pain but you have to turn the engine till a few valves are open, then wait a few hours, mark those valves or write them down on a piece of paper, then turn it till some other ones are open, etc etc.. When you put lifters in new there's always some air in them, but when you take the pressure off a used one the spring pushes the plunger inside the lifter up, and it sucks in oil and becomes overprimed. By letting then sit for a while in the open position, the valve spring will push some of the oil out of the lifter, and allow it to reset to the proper adjustment next time the valve closes. Hence the term Hydraulic valve lash adjuster (lifter for short) DON'T WORRY YOU DON'T NEED A CAM OR NEW LIFTERS. THAT HAS HAPPENED TO ME DOZENS OF TIMES.
- Q:What are better valve cover gaskets for a car? Cork kind? Or the rubber kind? Or either rubber/cork kind?
- that depends on what shape your valve covers are in. if the sealing flange is good and straight and not bent. then I would use cork as long as you don't over torque the bolts. But if you have a flange that is bent or wrinkled use the rubber ones, they will conform to the shape of the cover and you can tighten them a bit more. if you have a serious leak use the rubber kind. want a little racer trick. take a coke can and cut eight strips out of it that are half as wide as your gasket. place them at the corners of each cover don't go into the corner just up to it. this will help seal the corners better. but I still prefer cork to rubber.
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Full Welded Forged Steel Ball Valve DN 36 inch
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 pc
- Supply Capability:
- 100 pc/month
OKorder Service Pledge
OKorder Financial Service
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