full welded forged steel ball valve PN 1.6 Mpa
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- 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 somehow lost the valve cap to one of my tires. Do stores sell replacement caps? If so, would a place like Sears or VIP be a good place to look? If not, would a bike tire valve cap work?In the mean time, i took a cap off the fullest tire to put on this one(the lowest) was that good or bad idea?
- This Site Might Help You. RE: replacing car tire valve cap? I somehow lost the valve cap to one of my tires. Do stores sell replacement caps? If so, would a place like Sears or VIP be a good place to look? If not, would a bike tire valve cap work? In the mean time, i took a cap off the fullest tire to put on this one(the lowest) was that good or bad...
- Q: people tell me i need to install new valves and valve guides
- You might not need new valves or valve guides. Mitsubishis, along with many other vehicles, use hydraulic lifters which give off a ticking sound. They're located between the rocker arm, or in the rocker arm, and the head of the valve. It's very common and will not harm the engine. However, if the sound you're hearing is more of a rattling, like putting some nuts and bolts in a glass jar, you may need to pull the valve cover off and inspect for yourself to make sure that the rocker arms do not have any play to them while they are pushing on the valves. If there is any play in the rocker side to side, you may need to replace those rockers. However, if there is any play up and down you may just need to replace the lifter. To better check if you need new valves or valve guides run through this checklist: Are you burning oil? Have you done a compression test (both wet and dry)? And if so, were the compression numbers within spec? Have you felt a loss in power/idle quality/gas mileage? Is your oil level correct/using the correct oil/non-FRAM oil filter? At your next oil change, instead of using the recommended 5W-30 engine oil, try switching to something a little heavier, such as 10W-30, to cancel out the effect of possible lifter tick. Do not use a FRAM oil filter if you have in the past since they're filters tend to have additives that are unnecessary and may cause the engine harm.
- Q: My 99 accord has been smoking bluish white smoke out of the exhaust only at high RPMS- 5000 and up, but NOT at lower RPMS. Obviously I rarely go that high, but I've feared the worst. I've checked the coolant, its green without contamination. today a mechanic discovered that someone installed the wrong pcv valve on the car- the one that belongs on the v6 model, and that it is somehow larger. the mechanic suggested it was possible that this was the cause of the smoke- the oil was getting into the intake manfold, and into the cat, and that when the engine is at higher rpms, and the gases/ heat increase, it burns up the oil in the manifold/cat. He said IF that is the cause it should clear up in a week or so. Does this sound to good to be true? or is it possible? the car does have 160,000 on it, but i've owned several hondas with much more mileage that didn't smoke at all.
- The PCV valve is a possibility but the more probable cause on your car is that the spark plug tube seals are leaking oil. The 4 cylinder hondas have tubes that surround the spark plugs that run from the valve cover to the top of the cylinder head. There are gaskets on the valve cover to keep oil from getting into the tube from the top and seals at the bottom to keep oil from getting into the tubes from the bottom. on older hondas the tubes fill up with oil and the oil works its way into the engine combustion chambers through the spark plug threads. its real easy to see if this is the problem. Usually you can just pull each of the spark plug wires off. If the end of the spark plug wire is wet then you have leaking tube seals. Typically the seals on the valve cover can be replaced for about $50. if it requires the lower seals its pretty pricy. I think that's what you're going to find. PCV failures are rare as are valve seal leaks or internal engine wear problems on hondas. hope that helps hope that helps
- Q: Check engine light came on. Had a diagnostic exam run. EGR Valve is gone. Do I REALLY need to replace this valve, or will the car run just fine without it? 1999 Chevy Malibu.
- An EGR error code doesn't necessarily mean the EGR valve itself is bad. Many times they just need the carbon cleaned out of them as well as the intake manifold passages they connect to. The EGR valve is normally closed at idle, and opens to cool the engine with the exhaust gases and reduce NoX emissions. The computer is calibrated to operate the engine properly only with the EGR opening as it should at highway speeds.
- Q: I have a '98 Dodge Caravan 3.0 and the valve cover gasket is bad. How do I replace it?
- take the bolts off pull off old cover and do the same with new cover!
- Q: I have a 04 Ford Ranger 4.0L . some people are saying that headers may affect the EGR valves and might put up the check engine light on. is this true or not.
- The headers shouldn't effect the valves but you will have to tighten the headers every day and you will be looking at alot of ehaust leaks from them.
- Q: pls. tell me the differnce between isolation and block valves and also where it to be used .
- *Terminology okorder /
- Q: And' the valve leaks......Can the valve be unscrewed from the tank for replacement? Or can the valve be serviced with a new gasket perhaps?
- If it is a regular brass valve, you will have to drain the tank first, then replace the washer in the valve with one rated to be used for hot water. You replace the washer just as in any valve by removing the bonnet and stem. there you will see the washer. You may want to clean the area of any calcium carbonate that may had developed on the seat before putting it back together. If you decide to replace the valve, it is a 3/4 inch male NPT hose bib valve rated for hot water service. Personally, I've always thought that if I ever had to change one of those valves, that I would replace ti with a good ball valve that had a threaded hose end screwed into the discharge end for better drain flow. The whimpy valves that they put on water heaters is pathetic! If you use your favorite search engine and just search for water heater drain valve, you will find all kinds of cool replacement valves!
- Q: My boyfriend just went to his heart doctor and his tricuspid valve is leaking because of his pacemaker wire. They are saying that its moderate to severe. We are trying to decide on what moderate to severe really means. They said the same thing when he was at the doctors in June.
- Tricupsid regurgitation (TR) can be mild, moderate or severe. The tricupsid valve is located on the right side of the heart and separates the right atrium from the right ventricle. During the contraction of the right ventricle, the tricupsid valve is normally closed and does not allow blood to travel backwards into the right atrium. The severity of TR is determined by the amount of blood that regurgitates back into the right atrium instead of going into the pulmonary artery like it normally should. If a small amount of blood is regurgitated, then it is considered mild. If a significant amount of blood is regurgitated then it is considered severe. Moderate is between the two. Cardiologists frequently use the term moderate to severe to indicate that it is somewhere in the middle.
- Q: my mechanic did a valve clearance check and said it was OK and when I asked him about the clearances he said that they were 6 thousands and 9 thousands however in my book the measurements are different they are as follow: ( i don't understand what he meant by thousands)inlet: 0.10~0.140.15~0.19 exhaust: 0.14~0.190.20~0.24so did he just make it up or did he get the wrong measurement.
- Klx250s Specs
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full welded forged steel ball valve PN 1.6 Mpa
- 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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