Full Welded Forged Steel Ball Valve DN 36 inch
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- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 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: A diabetic patient undergone CABG having aortic valve problem.Cardiologist suggested valve replacement
- Today, there are two types of prosthetic valves used for replacement: mechanical or tissue. Mechanical Valves A mechanical valve is carefully designed to mimic the native heart valve. It has a ring, like your own natural heart valve, to support the leaflets. Like your own heart valve, the mechanical valve opens and closes with each heartbeat, permitting proper blood flow through the heart. To prevent any blood clots from developing on the valve, which can cause complications, a mechanical valve replacement requires you to take anticoagulation medicine (blood thinners) daily. The dosage of this medication is different for each person, so you will be closely monitored to make sure you are on the correct dosage for you. Regular blood tests will be performed at the physician's office, an anticoagulation clinic, or at home with a specialized testing kit. Tissue Valves The tissue valve is a native valve taken from an animal. Once the tissue is explanted (removed), it is chemically treated and prepared for human use. Some tissue valves have a frame, or stent, that supports the valve, and some valves are stentless (no framework). A very thin polyester mesh cuff is sewn around the outside of the valve for easier implantation. Eliminating the stent makes it possible for the surgeon to implant a larger valve. Larger valves generally provide more surface area for blood flow; this allows more blood to flow through the valve to accommodate the body's needs. Homografts or Allografts A homograft or allograft is a human valve obtained from a donor. This type of valve is particularly beneficial for pregnant women and children, because it does not require long-term anticoagulation therapy. In addition, it can provide excellent hemodynamic performance, allowing for natural function of the surrounding structures. Because the availability of these valves depends on donors, supply is limited. Take care always
- Q: Surly Pilots don't just switch the fuel selector valve of mid flight
- Most likely it was found in the off position because of impact forces. That's not uncommon. The NTSB report mentions that not only was it in the off position it was torn from the fuselage and the fuel lines to it were ripped off and the whole bottom of the valve body was torn away. The airplane hit the water in a steep angle and at high speed, roughly 1 hour after takeoff. NTSB figured it was in a 45 degree bank and beyond 10 degrees nose down...in excess of 4700 fpm rate of descent. Marks on the propeller plus all the engine controls as well as indications on the gauges indicate that the engine was operating at full power. Last recorded fuel flow an instant before impact was 22 gph. It wouldn't have been able to do that if the valve was off. In the roller coaster ride that the plane went through and the confusion he must have had before hitting the water I'm sure he didn't turn it off...he had all could handle trying to fly the plane. He became disoriented in reduced visibility and who knows what he thought was going on. The destruction was total.
- Q: looking to get a greddy type rs blwout valve for my sti, but i wana noe wut exactly da blowut valve does....kause i just got da car and i bought warranty, and i wana make sure ma warranyt doesnt void.....and how hard would it be to change da blowout valves....frum ma old 1 to dis new 1......so just incase ma warranty does void kause of da blwout valve wenneva i have problems i could switch it back to da original 1HELPPP???
- I WORK FOR SUBARU AND I HAVENT HEARD OF ANY BLOWOFF VALVE VOIDING THE WARRANTY BUT WITH THAT CAR YOU DONT NEED ONE. THE ONE THERE RECIRCULATES THE BOOST FOR OPTIMAL PERFORMANCE SO IN OTHER WORDS DONT TOUCH IT. OR IS 293 HP NOT ENOUGH?
- Q: HowdyWas taking apart a screw down NR valve and screw lift valve and noticed the spindles were made out of different materials. Brass and Steel.I am aware that brass is non corrosive but why use steel in the other valve? Is it due to their operation, do they come or not come in contact with fluids? Is one cheaper than the other?The screw lift globe valve had a steel spindle and the screw down nr glove valve had a brass spindle.Also, if anyone knows what materials are used in the valve lid and seat are made of.Any ideas?Cheers
- Brass is used in some cases because it it less likely to corrode. It is used in other cases because it is softer than steel and can act as a bearing surface. Steel is usually used because of its strength relative to brass. In some cases they are used in combination so the steel surface and the brass surfaces compliment each other to provide a smooth sliding surface. Bronze is also a popular material for some valves and parts of other valves. Usually in water or steam service. Many times the valve seats are made from a harder material such as stellite. See site below for more info on stellite.
- Q: What is the function of valves between atrium and ventricle in the heart?thanks
- the atrioventricular valves (AV valves) separates the atria from the ventricles. the AV valves perform a very important function in the heart by maintaining the blood flow in one direction. they are subjected to tremendous strain during every heart beat, and are uniquely designed to withstand this strain through a person’s lifetime. the right AV valves is called the tricuspid valve. the left AV valve is called the mitral valve. the opening and closing of the AV valves is dependent on pressure differences between the atria and ventricles. when the ventricles relax, atrial pressure exceeds ventricular pressure, the AV valves are pushed open and blood flows into the ventricles. however, when the ventricles contract, ventricular pressure exceeds atrial pressure causing the AV valves to snap shut. :)
- Q: 1992 Ford Crown Vic, 102K, burns oil, no blue smoke, no leaks. My first thought was a valve job. Any other possibilities? Suggestions? What about an approxitmate cost for the valve job? Thanks.
- At 102k it would be better to go through the whole motor. Do a compression balance test to get an idea of cyl wear. It will save you money if you intend on keeping the car rather than spending the money to go through the heads and then have to rebuild the motor in another 10k.
- Q: So it always seems that when I see the jet and foot valve out of a well there's a drop tube between the jet and foot valve. My question concerns this drop tube- is it necessary? I've got a leak somewhere, replaced the foot valve and still have a leak. I'm inclined to get rid of the old drop tube, it's crusty and likely to be the source of leaks either now or in the future. any reason to not just plumb the foot valve directly to the jet? Thank you kindly for useful information.
- This drop tube is the suction line. This tube will always be below the water level in the well. I would talk to a competent water well company and get their recommendations. Regards, Dale
- Q: Hi all,My 1995 nissan altima (122k on the odometer) stalled for a few minutes this morning. I noticed that one of the sparkplug holes ( where the cable from the distributer connects to the spark plug) is sorrounded by oil. I cleaned it out and it got filled with oil again. luckily for me, and by god's grace it somehow started normally and i drove home. I am sure its the valve gasket. There is not much oil leakage, the oil level is fine.I need to know if its going to damage my engine if I ignored the problem for 3-4days.Thanks.
- The part itself is less than $100. It's a little rubber gasket that goes inbetween the valve cover and the engine block to make a tight seal between the middle and top of the engine. Depending on which engine you have (the 4 or the V-6), it can be a VERY simple fix with about an hour's labor because the valve cover is on top. However, some (very few) cars require you to remove the motor to get to the cover. If this is the case, 7 hours seems about right.
- Q: In one of the two bathrooms - that we rarely used - I recently found that shower has now only hot water running. The valve is Moen brand with a single knob. On turning this, I get no cold water, but just hot water. I removed the knob, and decided to maybe replace the cartidge, but could not make any headway, after removing the acrylic knob. First, do I need to remove the cartridge?If yes, how? Is it possible to remove it without removing the back-plate glued to the Tile walls? Will appreciate detailed instructions to remove or fix the valve?thanks
- the valve should have a c shaped clip holding it in. do that with the water shut off. if you have cold water to the tub spout, maybe the valve body is clogged with sediment, or a CW valve has collapsed.you have to remove the back plate to access the valve body.
- Q: My cougar needs new EGR valve. They squeezed the 4.6 litre engine into it. My question is, how hard is it to get out and then back in? I can barely see the top of it behind the intake manifold so don't want to get it off and not be able to get it back in. What size bolts hold it in? I'm sure they are metric. Any help would be greatly appreciated.
- Go to a library that carries the ALLDATA data base. This amazing system has all information you will ever need. Even secret recall campaigns can be found here. Anyways, you are wasting your money to replace the EGR valve. For the most part, they can just be cleaned out with a solvent like Gum-out or butyl cello-solve and returned to service. Usually, these valves get gummed up when the IAC valve is dirty or you are using cheap gas and/or cheap oil. You are right about being metric, but a 13mm is the same as a 1/2 inch. A 14mm is the same as a 9/16 inch. You can even clean this valve by using Amsoil Foaming Cleaner through the intake manifold with the engine running full warm. Eventaully, this cleaner will penetrate the valve and allow it to close. You can tap it lightly with a mallet. Follow with a Gum-out chaser. Good luck!!
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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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