Full Welded Forged Steel Ball Valve DN 32 inch

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10 pc
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100 pc/month

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Product Description:

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 

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 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 air pressure valve do I use for vacuum chamber?
Any valve rated WOG (water, oil, gas) is OK for vacuum. Maximum vacuum pressure differential is atmospheric pressure (14.7psi, 101.3kPa, 1 bar). For convenience, you might use a barbed valve which is sized for tubing (See Yahoo! Images: barbed conical gas valve). Any plumbing and heating supply, or commercial cooking equipment supply will have a variety of miniature bronze gas valves to choose from.
Q:24 valve V-6 vs. 12 valve V-6?
The 24 valve has 2 intake and 2 exhaust valves when the 12 valve only has 1 intake and exhaust per cylinder, the 24 would give u more power but will most likely use more gas.
Q:Pressure balancing valve adjustment in shower?
All major manufactures of valves have excellent customer service departments. Most of them also have great websites with lots of technical info. Note: You may try changing your shower head to one that is a higher flow or remove any flow restrictor that may be in the one you have now. This may allow you to have the valve set to a colder setting for the tub spout and should increase the hot when showering. Personally, I don't like these style valves. Too many problems like yours.
Q:what does a vacuum switching valve do?
Vacuum Switching Valve
Q:Natural Gas Vs Propane Valve?
The difference is the size of the orifice. I've never changed it myself but I don't think it could be too difficult, however I've always had a professional do it for me. The reason for this is that propane and natural gas (methane) have very different Btu contents. Propane has a much higher Btu content and the orifice for propane is smaller. There is also a small difference in pressures of the supplied gas as pointed out below, but it is small. If you hook up propane while having the natural gas orfice installed, you may experience problems with incomplete combustion (soot) and the appliance getting hotter than design due to too many Btu's. LNG (Liquid Natural Gas) is a cryogenic form of methane. It is generally stored at -250 deg F. It is not used for domestic fuel.
Q:Can anyone explain me the basic differences between a gate valve and a globe valve?
A okorder.com/) You are right it is different from a ball valve. I don't know the details of firefighting systems but a gate valve is normally used for shutoff applications and a globe valve for throttling or flow control.
Q:How to control fluid flow through a valve automatically? What are the circuit requirements?
Some valves are controlled to maintain a fixed pressure on a system. Others control the level in a tank or vessel while still others actually control the flow rate in a pipe or line. The automatic control of flow through a valve requires a sensor to determine if flow is needed or what the flow rate is. You then need a controller to take this input and then adjust the valve to achieve the desired result. This is called a control loop. Some are all electric/electronic while others are all pneumatic. The valve itself is a specific valve designed to perform the function intended. It is not a good idea to take an existing on/off valve like a gate valve and try to control flow. These type of valves do not have a flow characteristic that is proportion to valve opening while a control valve does.
Q:Explain the role of valves in the functioning of the circulatory system. I am so confused!?
Function Of Valves In Heart
Q:will fuel system cleaner help with an egr valve?
No it will not help, in any case, it is cheap to replace.
Q:Tire Valve Stem cracked?
There are only a couple of spots that the tire / wheel assembly is going to leak. Through the valve stem or along the lip where the side of the tire meets the rim. My guess would be that they did not do a good enough job removing debris (corrosion, dirt, etc.) from the rim before they mounted the new tires. With that many flats, you should have them remove the tires and clean the sealing surface. They would prefer not to do this because it means they have to mount and balance the tire again, but it is probably the only way repair the problem. Unless they have a bad batch of valve stems, there is no way that many should fail.

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