Full Welded Forged Steel Ball Valve DN 24 inch

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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.
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.

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.

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  GBGB/T  JBJB/T JIS customize   

Test   Standard

 API   6D customize 

Face   to Face

 API   6D customize 

Pressure-teperature   rating

 ASME   B 16.34-2004 customize 


 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 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:Are There Other Oils For Valves On The Trumpet Unstuck?
Unscrew the the valve cap on the main suitable decrease than the button. attempt to softly pull the valve out. you could might desire to paintings it backward and forward until it loosens up you could upload some oil around the the sting of the valve cylinder. as quickly as you have all 3 valves out sparkling all the debris off of the valve, you ought to use an sos pad to get a number of the heaver stuff off. Wipe each ingredient off with in straight forward terms somewhat of lighter fluid and a sparkling rag. sparkling the valve bores including your snake. Stuff a rag down each hollow to get the stuff the snake loosened up. Reoil the valves and the cylinders and reassemble.
Q:check engine light- valve cover gasket?
Most likely if you see oil on the block you need to re-do the head gasket which sucks but the valve cover gasket is usually not the reason for most leaks, could be at least i would start there most new cars have a rubber gasket which can be re-used if you have to open the cover. But yeah this can turn the light on depending on what car you have but for sure. Replace the valve cover gasket and see what happens, they are usually like $30.00 bucks or less.
Q:Unsufficient EGR valve lift or....sth?
Inside the EGR valve there is a coil spring that exerts pressure on a diaphragm valve. The diaphragm valve has a large light weight washer in the middle that controls the plunger (heart of the valve) that opens when the car is at higher under motion and closes when the motor is at idol. It's purpose is to allow a measured amount of exhaust gasses to flow back through the intake manifold to help lower emissions. The trouble is, it is a pure mechanical vacuum devise that wears out and not respond to the vacuum supplied to it. In reality the valve gets dirty and stick open or closed because carbon caused no-name or low octane fuel. Your best bet is to have it replaced.
Q:How to adjust valves?
You know what they say. if you cant hear the valves tapping, their doing damage! but it can be too loud. Make sure that your cylinder is at top dead center for the valve your adjusting. Then You need to know what feeler gauge is right but you probably already know. Make sure when you adjust them that they make the feeler gage drag slightly when you pull it out. If you have a twin you need to make sure that each cylinder is top dead center when you adjust the valve for it.
Q:Explanation on enlarged heart valve?
•UPDATE• We went to the US today and the heart was 100% HEALTHY!! There was nothing wrong with any anatomy of baby girl. The doctors there said they are completely confused as to why my Doctor would tell me the baby might need heart surgery when she wasn't even 100% on the issue and even if it was due to positioning like she 'claimed' at first, then a Level 2 US wouldn't be necessary. I'm just so grateful and thank God that my baby is ����!
Q:water inlet pressure relief valve?
Sounds like a pressure regulator, cause, relief valves don't have a bolt, they have a lever. If, it is the regulator, and its leaking, it needs to be replaced. Good luck with that.
Q:Is it possible to re-port a globe valve?
On okorder.com/
Q:Motorcycle Valve Seal (When to replace?)?
A leak down test won't tell you anything about the valve stem seal. It will about the actual valve face sealing in the valve seat, but the valve is closed when performing a leak down test. The best way to diagnose worn valve stem seals is if you get a lot of oil smoke onstart up, but it goes away in a few minutes. A real giveaway on bikes is after the bike has set on the side stand overnight and when you fire it up, you get more oil smoke out of the left side muffler than on the right side muffler. That's because the oil in the valve area runs to the left side when parked on the side stand.
Q:Adjust valves on 96 Blazer?
i think the older chevys, you could adjust the valves, but i think now they are self adjustment. what you do is take no:1 rocker and turn the crank, until its all the way down on the low cam and then torque the bolt to specs, do the rest the same way. but if they are adjustable, start your blazer and loosen the rocker until you hear the lifter, then tighten it until it stops, then give it another 1/4 to 1/2 turn more. do the rest of them the same way.
Q:Fast fast question about aquarium check valves?
Adequate the purpose you let a tank cycle in the first place is due to the fact of Bactria needs to grow that will maintain your water clear. As for overstocked. I consider your proper on the threshold of being over stocked. Just preserve the tank walking a lil longer and spot if it clears up. But when your 15 gallon tank has the filter from the ten gallon tank that could be why to you dont have sufficient water moving around to scrub it

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