Full Welded Forged Steel Ball Valve DN 34 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: Looking at a few marshall amps and i came across this whole valve amp thing. I've heard about it before, but never really understood it. What types of valves are there?! (i think i've heard of power amp valve) and what type of marshall amps have valves?! Can some of them be part valve and then have that valvestate thing?! :s all pretty damn confussing Cheers
- Marshall were big name in Amps when pretty well everything electronic used valves. Some valves were quite small, some larger, and some are still used today in powerful transmitters. There are those who swear that the sound produced by a valve amplifier is far better than a solid state one. Valve technology takes up much more space than solid state, so miniaturisation is a problem, and also uses much more power and produces a lot of heat. Now solid state is capable of producing high power audio amplifiers which use less power and take up less space, so have become the preferred method. Nevertheless, there is a strong following even today for a good high powered valve amplifier. And yes, it is quite possible to have a valve and solid state mix. The solid state works at the input stage, and the valves take over at high power output levels, but I am not sure what the purists would think about this hybrid usage .
- Q: Okay so my boyfriend's father is getting a heart valve replacement....he's so nervous he cried last night when he heard it will be in 2 weeks....and he's usually one of those tough guys has anyone or know anyone who has had this type of surgery. They are leaning towards a animal (cow or pig) valve...because with mechanical you have to take blood thinners for the rest of your life...anyways if anyone knows information on this or knows the pro's and cons of the two diff. types of valves please give me info. Thanks
- I have worked in the health care field as an Emergency Department manager for 12 years and had to keep up with the latest cardiac surgeries. Valve replacement is an extremely common surgery now a days. But as with any surgical procedure there are risks that the physician should explain completely until your boyfriend's father completely understands the entire process. To answer your question: The mechanical valves have been around for decades and are a proven technology. You are right, he would have to take a blood thinner for the rest of his life inorder to prevent clots from forming on the metal valve. Pros: it has a long successful history Cons: Blood thinning medication for lifeValve can wear out (after 10 to 15 years)Potentially longer recovery Conversely, the animal valves are more resilient and less likely to need replaced (although it can happen if not taken care of). There is much less need for prolonged blood thinning medication. Recovery can be shorter with less chances of strokes or heart attacks from small clots. If it were me that had to receive the valve...I would take the animal valves. Also...in some institutions (hospitals) the physicians may have the training and skills to perform this procedure through a catheterization procedure where there is no large incision in the chest. The heart valve is connected to a Stent that is inserted into the opening of the valve to be replaced--opened to cover the old valve--and left in place. The heart wall heals around the stent leaving the valve intact. I do not know where you are in the country, but many large University based Teaching hospitals can perform this procedure. I have listed two sites for additional information. Hope this helps.
- Q: 2004 R6. Runs really well... never had a problem. Has 24K miles on it. Yamaha calls for them to get readjusted at the 26,600 mile mark. So I have a few thousand more and then I'm gunna have them adjusted.I can already hear them tick especially at idle because when riding, my exhaust is so loud and all you can hear is that and the wind. Anyway, this time will come up before I know it.Just curious... what happens if the valves remain loose? Will it affect performance? How do you they become loose and is it ok to ride a bike with them like that... atleast until the specific mileage when they are supposed to be adjustd?
- Your bike has shim-on-bucket valve train, and like any mechanical system, its going to make a certain amount of noise. It's not something that's easily adjusted w/o some experience and special tools. You should call around to get prices and get it done at the recommended interval unless you've been hammering on the bike, in which case a little early won't hurt. If you have some mechanical inclination, go ahead and get some feeler gages and check your lash yourself. Just make sure the cam lobe is pointed away from the valve you're checking. Good luck.
- Q: 12 valve
- Un plug the vacuum hose on top of the valve, loosen and remove the big tube nut on the bottom of the valve, I have found if you hit it sharply with a hammer 3 or 4 times before you try to loosen it won't break the valve off, once the tube nut is undone remove the 2 bolts holding the EGR valve to the intake manifold. Remove and discard the gasket and install the new valve in the reverse order. If the tube nut still won't come loose try heating it with a torch, if it's really rusted on you might have to replace the EGR tub along with the valve.
- Q: I have a training I will be attending on Valve actuator and subsequently an exam. I need fundamental knowledge of ROV. What are the types of ROV. The Maintenance Of ROV ? and the different Type of ROV actuators
- The term remote operated valve is slightly misleading, as it really means remotely controlled valve. Normally the valve actuator is mounted directly on the valve body so that it can open and close the valve. The majority of valves are either rotary ball or sliding gate type. Valve actuators can be operated by electrical methods, pneumatic or hydraulic, or by a combination. The most common types of actuator for industrial use are motorised electrical and pneumatic. Motorised valves will have a reversible motor for opening and closing, whilst pneumatic types will have a double acting cylinder with a 5 port 2 position or 3 position control valve. The control contactors and valves would be located in a control room, possibly controlled by a PLC or similar automation controller. In most cases position feedback will be supplied from the valve by means of limit switches to indicate its position, and in the case of motorised actuators, the running current can be monitored as an indicator of valve condition. If a pneumatic valve is jammed, the actuator will simply stall without damage, but for electrical actuators some form of overload protection is required to prevent excessive current load and overheating. The majority of industrial valves require little maintenance, but regular inspection for security, electrical connections, gland sealing etc should be scheduled at intervals suitable for the working environment.
- Q: I Have a 2001 Honda Accord 3.0 V6. Would a clogged EGR valve cause it to run rough and have problems starting up when it is warm? It also runs hot. I have replaced the thermostat and the cooling fan relay? What could cause all of this? PLEASE HELP!
- The V6 EGR valve was a big problem in those years, but a clogged one would not cause your problems. The EGR tubes regularly clogged with carbon and caused the Check Engine light to come on because there was no EGR flow. Your problem could be caused by a hung open EGR but that's unlikely as well as the Check Engine light would also be on if the valve is open all the time. Need more information on what the conditions are under which the car is not starting. need to know what you mean by problems starting up when warm. Does it happen all the time? What is warm? how long is the car driven for to get it warm; how long does the car sit before you try to restart it? what happens when you try to restart it? What is the fuel level in the gas tank? What are the outside conditions--temperature and humidity? What is the maintenance history on the car? how many miles are on the car? any answers and information you can provide will help narrow down the possibilities. Right now, its just guessing. hope that helps
- Q: yes i just started clarinet. all my spit just comes right through and falls on my feet and the ground. i was just wondering if the clarinet had a spit valve or somthing.-thanks
- Nope, no such luck!
- Q: Why is the atrioventricular valve in the right ventricle called the tricupsid valve and the atrioventricular valve on the left ventricle called the bicupsid valve?
- The TRIcuspid valve has 3 pointed flaps; the BIcuspid valve has 2 pointed flaps, and a cuspid is a point (just like your bicuspid teeth have 2 points).
- Q: I need to find a solenoid valve with the following specifications:2-way, 1 inch nozzles (both male)needs to be able to handle the pressure from a CO2 tank (~1000 psi)needs to work with 12vdc less than 10 ampsits either a solenoid, or some other type of valve which will release the CO2 when we tell it to electronically
- The leading maker of solenoid valves is ASCO. Their website is shown below. If a valve that fits your application exists they probably make one. If you can't find a suitable solenoid then you need to consider a pneumatic valve operated by a solenoid valve. That is a common solution for a problem like yours. As to the male connections. If they are not available then you can just use a pair of threaded fittings (pipe nipples) to change the configuration.
- Q: My fortuner stalls without warning, but restarts quickly, according to Toyota service center, we need to replace the suction valve, can someone please tell me how a suction valve work
- you need to be more specific. there are 100 things on a car that could be called a suction valve. Right off the top of my head the only valve that could do that is a EGR valve. If it gets stuck open the car will stall, but it will start back up after the valve closes again. The OBD will tell you if the EGR valve is bad, but other than that I can't say.
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Full Welded Forged Steel Ball Valve DN 34 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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