Full Welded Forged Steel Ball Valve DN 24 inch
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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: Im looking for a new BBb tuba. i would like six valves at 4+2. but if not looking for 6 valve BBb tuba
- Better get busy with that search engine, then!
- Q: 1998 Ford Crown Victoria LX 4.6L Use 89 Octane BP, Shell, Chevron gas. When the engine is under stress(acceleration or going up incline) the engine sounds like the valves are chattering. I can increase the rpm's and the chattering goes away. Had the same problem with 95 Thunderbird 4.6 and have heard other ford cars going down the road with this problem. Air leak? Don't really want to use higher octane due to gas prices and possible engine damage. Also, in the thunderbird, i used a bottle of octane boost and the next day a valve spring broke. Was the octane boost a possible cause?
- it is not valve chatter, it is called Pinging, it is a fairly common problem, what it is caused by is hot spots in the engine, or by overly advanced spark timing, i would check your base timing, perhaps even back it off a degree or two, i would also run a bottle of marvel mystery oil, or gm top engine cleaner through a vacuum line to burn out the crud that has built up, the sum total of these repairs: about 15 bucks, the savings: your engine! as for your t-bird, it was the pinging that broke the valve spring, not the tank of hi octane. hope this helps
- Q: i just replaced the head gaskets on my 1991 Acura Legend and When i put the timing belt on somehow it slipped and came loose I than tried to start it(not knowing it came loose) and it cranked hard and strong but no start. I just retimed the engine and put new timing belt set on it and when i started it the car blows grayish blackish smoke from the exhaust and has a really crazy idle. Could the valves be bent
- Misfiring at low engine speeds. Usually, this would happen if you have had a leaking exhaust manifold gasket for a while which would actually cause the valve to get burned from high temperature. An actual BENT VALVE is easily spotted if you remove the valve cover to the suspect area and relieve the stress on the valve stem when the engine is at TDC on this cylinder. If there is too much play , or lash, between the cam and the valve stem, then the valve is not closing and is therefore, BENT!!
- Q: Tryin to figure out how many valves a 1992 vx has. 16 or 8?
- 16 VALVES D15Z1 * VTEC-E * Found in: o 1992-1995 Honda Civic VX o 1992-1995 Honda Civic VEi (European Market) + Displacement : 1493 cm? + Bore and Stroke : 75 mm X 84.5 mm + Rod Length : 137 mm + Compression : 9.3:1 + Power : 92 hp (69 kW) 5600 rpm 97 ft·lbf 4800 rpm + Valvetrain : SOHC VTEC-E (4 valves per cylinder) + Piston Code : P07 + Fuel Control : OBD-1 MPFI
- Q: Does a diverter valve even make a sound at all?
- No. A diverter will typically be installed before any catalytic converter or muffler to allow you to have a free straight flowing exhaust by dumping the exhausted there. it has two out puts and one input. one out goes to stock exhaust one to open exhaust. Noise on demand really. Blow off valves for are for Turbo charged cars and make a whistling noise when they release air pressure when u let off the gass.
- Q: can a person survive with only one heart valve functioning?
- All four valves are not essential. Many patients have Pulmonary regurg after a surgery for Fallot's tetrology. Other three valves are important but valve leaks are better tolerated on the rt side than on the left side. Stenosis of any valve causes obstruction to circulation and so it causes problems.
- Q: Is there anyway, from home, that I could rule out a bad heart valve as the cause for my heart palpitations and arythmia?
- As a physician, I strongly recommend you to visit a ER (Emergency Room if you were from UK) and explain the doctor what is going on. I also would recommended ACE inhibitors, since they prevent cardiac muscle remodelling. I can think in several other things, but I need PE and a new echo-cardiogram to make a decision (indeed a ER doctor must make those decision)
- Q: I have a lawn tractor with a 10 hp Tecumseh and its running so rich because of the carburetor float valve not seating. So how should I fix this?
- A disfunctional float valve will cause the carburetor to flood from fuel spilling over the top of the float bowl. The float valve acts like a toilet valve and just fills the float bowl up to the top and closes until the level drops from the fuel evaporation being pulled off while running. I don't know the exact specs, but you should be able to guesstimate and adjust by bending the float tang, or just replace the float valve.
- Q: I want a valve sound that is clean and 'true', but I also want pre-sets. Someone said that digital pre-sets distort the valve sound.
- As long as the signal path isn't overloaded, the output can be clean in a tube circuit just like solid state. Pre-sets usually just vary the pre-amp signal before the power amp circuit. If you use a loop, you're taking the pre-amp signal, effecting it, and then giving it to the power amp. Some tube amps come with presets and effects now, like the Line 6. A tube amp purist will want nothing in the way of the tube circuits - they will just use the channels on the amp to switch between sound set-ups - like Clean Distorted, etc. It's not that a controller will distort the tone, it's just that it may color it somewhat.
- Q: I just want to ask do i turn clockwise or counterclockwise in the pipe main shutoff valve to turn on the water supply?
- left to open an right to close piece of cake. (grate now i want some cake)
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Full Welded Forged Steel Ball Valve DN 24 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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