Full Welded Forged Steel Ball Valve DN 6inch
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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 need to know the setting of the valve and a little advice on the up and down of the valves
- As Bob said, you had probably best bite the financial bullet and get someone experienced to do it. With the bucket over shim designs, the shim you need to change is underneath the bucket, the device that rides against the camshaft. To change the shims, you have to remove the camshafts and when you replace them, you must get them timed exactly right or else you can have pistons hitting valves..not good at all. They put the shim under the bucket to keep the cam from spitting the shims out through the valve cover at high rpms. The older 2 valve 900-1000-1100-1300 Kaws have shim over bucket and can be changed with a special $20 tool, a little screwdriver and small magnet . However, you might consider getting a shop manual and checking the valve clearance yourself. If all are within specs, then there is no need to take it to a shop. My old KZ1000 went something like 110,000 miles and only need two shims changed in all that time, so your bike could very well be ok.
- Q:wife died at 40 still awaiting results of exsaminers report. Can CPR be given to some one with two artificial heart valves mitral and arotic? She the person administering CPR be aware that they are in the heart...
- Yes, and it doesn't matter if there are artificial valves or not. The thing about CPR is that it's only done for someone who is actively trying to die. The alternative to doing CPR is to let someone pass away, which is not usually the best course of action (unless they have a terminal disease and have asked not to be resuscitated.) If you are asking whether the presence of heart valves excuses someone from NOT doing CPR... then no. If you are asking whether heart valves + CPR and a bad outcome is because CPR should not have been done, then no to that too. The right thing to do for someone who is pulseless is to start CPR, call 911 and get more definitive treatment on the way. CPR is not going to revive someone - it is only a bridge until a defibrillator and/or cardiac drugs are available. I'm sorry that you lost your wife at such a young age, and I hope you find the answers you are looking for.
- Q:are the carborator reed valves supposed to be open or closed on a 1999 yz 250?dirt bike
- the aggregate is slightly skinny. The exhaust will smoke much less, however the appropriate end will ware quicker then standard. replace the piston rings as quickly as a 12 months could shop the engine risk-free.
- Q:in confederacy of dunces when ignatius talks about his valve closing all the time. is he talking about a throat valve or his he talking about like some intestinal valve? my mom says it's his intestinal valve, but i think he's got asthma or something and he's talking about his throat
- Suffering the trauma of the downward cycle, Ignatius confines himself to his bedroom, where he chronicles his version of history on tablets of Big Chief paper. Further, the stress of these incidents is manifesting itself physically. They have caused his pyloric valve to close--an ailment he suffers anytime he is subjected to anxiety and stress. With his valve sealed shut, gas fills his stomach, and he becomes severely bloated. In an attempt to pry his valve open, Ignatius lays on his stomach and begins bounhing up and down on his bed. Though it does not open the valve, the bouncing does cause a small erection, to which Ignatius decides to tend. Visualizing his childhood dog, Rex, he brings himself to climax.
- Q:what exactly causes a valve to stretch?
- All metal bend and even wear down. Valves don't stretch. They wear down. Good Luck...
- Q:what is the purpose of valves such as: gate valve, foot valve and globe valve in the industry?
- Valves are used to stop/start or control the flow of liquids or gases in pipes. There are many many kinds of valves, so if you want info on a specific type, just list that.
- Q:here are pix's i want to no, if there is a easy fix or does it have 2 b machined thanksi think it use to have a bent valve in it
- Your pics are too small and not clear enough for me to give you a 100% sure answer. My thought on this though is try to power lap the valves and see if that takes pitting out.. If not then you need a valve job. Lapping the valves won't put you out much. The lapping compond is pretty cheap. $5 or less for a tube of it, sold aty all parts stores. The common lapping is done with a lapping stick turning it by hand.. I recommed power lapping.. Get a lenght of 11/32 rubber hose, Put lapping compound on valve seat and valve face, put valve in head.. Put rubber hose on the valve stem, then chuck the other end of rubber hose into a hand held drill. I use a 1/2 chuck high torque drill for this. Now lightly push agaist the bottom of valve, will you trigger the drill and turn the valve around and around.. For yours do about 1-1.5 min, stop, push valve out some and look at seat, add more lapping compund if needed, then do it again This will machine the seat some.. It may be enough to clen up the pitting
- Q:From searching around I feel that I need to replace this on my vehicle. Is the Suction Control Valve different from the Idle Control Valve? Sometimes at a stop light the engine will stall. A couple times it has happened while driving when coasting to a turn or stop.
- I would think the suction control valve is what is also called a purge valve and is part of the emissions control circuit. It is not the same as an idle control valve nor will it cause poor running when it fails. The idle control valve will however..
- Q:What is the best procedure to check/adjust valve clearances? This engine is a perkins diesel inside of a cat generator. I know that he exhaust valve is .018 and the intake valve is .008.
- take off the valve cover(s) and your will see the valves. you will need to turn the crank so it will be top dead center(there should be a mark on the crank and a mark on the engine for checking the clearances. then whatever ever cylinder you are checking the vavles on are top dead center, use the feeler guage and make your adjustments.
- Q:Is what-valve spring. orvalve guide. orvalve cover. orretainer clip
- valve guide. I assume we are taking about an overhead cam engine? the valve guides are the channel that the valve slides up and down in. And are supposed to prevent it from moving side to side. They are also one of the causes of high oil consumption because when the guides where out the oil simply pours into the cylinder.
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Full Welded Forged Steel Ball Valve DN 6inch
- 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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