Pipeline Ball Valve-Reduced Bore High-Performance DN 3 inch
- Ref Price:
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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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pipeline ball valve-reduced bore High-performance
Product Description of High-performance pipeline ball valve-reduced bore:
High-performance pipeline ball valve is Raymond(RMD)hightech products,as switch control equipment,it is mainly used in natural gas,oil,gas,liquefied natural gas pipeline transmission system and other industries,its anti-sulfur products containing hydrogen sulphide,impurities and high corrosion are suitable for the long-distance natural gas pipeline.
Design Features of High-performance pipeline ball valve-reduced bore:
Body of high-performance pipeline ball valve is forged structure.The connection type for body and vice-body can be BB(bolted connection)and WB(welded connection).The WB(welded connection)and the LWB(Fully-welded extended stem)structure isadopted for buried ball valves,as shown below.
High performance pipeline ball valve series has the feature of strength, high perfect sealing, maintenance-free, long life and so on. The production of this series ball valve adopts the international advanced ball valve design and manufacturing technology, selects high-quality materials in accordance with the standard selection of materials and combines with advanced materials forming forging technology. At the same time, with the years of ball valve design and manufacturing experience, the use of advanced processing and manufacturing equipment and production and processing technology, through the first-class inspection and testing equipment and instruments, perfect quality assurance management system and excellence in the production of high-performance philosophy can ensure the quality of valves. This series of valve has the performance of a high strength, defect-free forging body, excellent sealing performance, even at maximum pressure difference(full pressure),it will still be able to ensure that seal without leakage, after frequent switching action to realize a safe usage in the transportation of oil, natural gas, coal gas, and other special medium transportation pipeline.
The special structure of valve seat seal of High-performance pipeline ball valve-reduced bore:
Floating structure means seat reciprocally can move along channel direction,so as to guarantee the ball and seat are tightly sealed.
(Ⅰ)Valve seat structure suitable for different occasions and sealing requirements
Valve seat can be designed as a standard single-piston effect and specific dual piston effect,Figure1 shows single-piston effect-inletside seal;Figure2 shows Dual Piston effect-outlet-side seal;Figure3 shows special dual piston effect sealing structure
(Ⅱ)Multi-level structure of the valve seat seal
As shown in Figure4,there are two elastic O-ring in the valve seat ring-ring A and ring B.Sealing ring A spring-loaded through the valve seat so that the sealing surface of sealing ring A tightly fit with ball surface to form an initial seal.When there is pressure in the system medium,the piston force
produced by the piston force produced by the piston effect of size difference makes elastic deformation of the ring A Ershi sealing surface and ball more closely fit the surface to form a re-sealing;meanwhile,due to ring A in the medium resulted in elastic deformation under pressure so that the sealing ring B is also closely fit the surface of ball for the formation of the second stage seal.When the system medium pressure increasing,it will have an enormous pressure in the valve seat ring A and ring B,so that the two seals have a greater elastic deformation,and then the metal valve seat ring surface and the ball surface sealing together to form a third level of metal to metal seal.
(Ⅲ)The assisted valve seat sealing equipment
Based on the actual service condition,medium requirement,sealing requirement,etc.,the assisted valve sealing equipment will be considered to be necessary or not.The assisted valve sealing equipment is a one-way valve installed outside of valve body that can prevent medium leakage and can inject sealing grease into valve body by external force.When the assisted valve seat sealing equipment is required,valve seat ring shall be design and processed with injection grove and hole to connect the assisted valve seat sealing equipments.Such equipment can prevent the medium by the sealing of injection of rease.Refer to Figure5 for reference.
Multi-level structure of stem sealing
Figure6 shows the stem multi-level sealing by adopting"O"ring,flexible graphite and grease injection;"O"ring achieves the first level stem sealing;Replaceable flexible graphite realizes the second level sealing by the compression of packing sleeve and packing flange;And the third evel sealing is realized by installing assisted sealing injection valve to the packing box,and by designing with the injection groove and hole to connect with the stem injection valve,which can inject grease.
Unique and safe seat structures of High-performance pipeline ball valve-reduced bore:
Ball valve fireproof design is implementation of the API607,API6FA standards.According to service conditions and user requirements,ball valve can be designed as a fireproof structure.
(Ⅰ)Fireproof structure of seat
As shown in figure7,there is composite fireproof ring,which are combined with graphite and stainless steel wire in the seat.Once the soft ring is burnt out in case of a fire,the fireproof ring and seat ring will form a piston structure through the spring to load the valve body.That will push and closely contact the metal seal surface of the seat ring to the body surface,So as to prevent a lot of medium from leaking from the burnt place of the seat ring,and prevent the fire from expending.
(Ⅱ)Fireproof structure(body and bonnet)
The seal gasket for bolt connecting valve body and valve bonnet,are used fireproof stainless steel wire and flexible graphite gaskets.Gasket compression load through the bolts and ultimately,ensure the valve body and valve cover between the metal to metal contact,so that the valve can with stand more high load,but also improve the fire safety of the valve.But for the full welded ball valve,the valve body and cover is welded structure,that fundamentally eliminate the possibillity of leakage of the valve housing.Even in the case of fire damage,there will be no leak.
(Ⅲ)Fireproof structure(body/packing and stem)
The body and packing connection gasket adopts fireproof stainless steel wire and flexible graphite gaskets.The stem packing adopts flexible graphite to ensure no leakage in case of fire.
Standard of High-performance pipeline ball valve-reduced bore:
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-temperature rating | ASME B 16.34-2004 customize |
Marking | MSS SP-25 customize |
FAQ of pipeline ball valve-reduced bore:
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: What are two problems assosciated with faulty heart valves, what are there causes, treatments, cures, symptoms, aftercare, etc?Thanks in advance!
- There's just not 2 complications associated with heart valves, and which heart valves?, mitral or tricuspid valves?, aortic or pulmonary valves?, most of them causes hypertrophy of the ventricles or the atrium affected, symptoms mostly consists of either cardiac grade IV-VI murmurs, cyanosis or congestion of the heart resulting to dyspnea, the management for it is replacement of the calcified valves most of the time.
- 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: Between these two Blow off valves around the same price, what would be the best choice for a pt cruiser.
- The Mopar Performance blow off valve is really going to be your best bet if the two are roughly the same price. The reason I say that is because the Mopar unit is designed to fit onto that car, therefore it is engineered to release excess pressure at a safe level for that engine. The Greddy unit is also going to typically require modification to make it fit and function properly. Unfortunately, what they don't tell you about universal units is the reason they are universal is because they don't fit anything until you make them to fit, you just have enough material and hardware to get creative with it. If you are looking to extensively modify your engine, then it may benefit you to go with the universal unit and just wait until you have your piping cut exactly the way you want it, this may give you better location or clearance using the aftermarket unit, but otherwise like I said, I would go with the factory performance BOV. If you have any further questions about your cruiser, please feel free to email me, I have had a cruiser for a couple of years now and have also done lots of customizing to cruisers for friends.
- Q: My 91 GMC Van has an Idle Control Valve that is unplugged, but the van still runs great. Will the valve being unplugged, result in harm to my vehicle?
- Won't hurt a thing.
- Q: I've found a little beemer that's only $800. I would like to have it as a 2nd car that I'll use in case something's wrong with my main car to loan maybe once or twice weekly to my neices (16 yr. old twins). The seller says it needs a valve job. My question is, will the valve job cost me more than the car?
- almost the work is alot cause you have to practicaly take the engine apart. and its a beemer. look to spend bout 700 on the job (gaskets, labor)
- Q: Carbon keeps building up in the EGR valve. WHY?? and HOW DO I PREVENT IT? The engine is in PERFECT shape otherwise.
- I own a shop, and a 4.3 V-6 blazer (94) that did the very same thing as yours. I started running nothing but 93 octane Amoco, or BP gasoline, and the problem has went away. The funny thing is; the gas cost more, but since I run this gas I get much more gas mileage now, so it more than makes up for the difference. I also run STP fuel injector cleaner in it every 3rd tank of gas, and put it in at 3/4 of a tank. Don't use the STP in the white bottle as it is crap! Use the one in the black bottle. You will tell a difference right away. It is important to change the PVC valve every time you change the oil filter, as this will cause it too. My Blazer cranks out about 30 miles per. gallon, and about 20 around town, so it's easy to see the difference. Advance Auto Parts carries a new gasket for the EGR valve that has a screen in it, and that too will help the problem. It might even fix the problem, I'm not sure but it is supposed to stop the problem. Go to their website and look it up. It will be in the listing with the EGR valve. I think it's made by Tomco, but not positive. Glad to help out, good Luck!!!
- Q: im having trouble locating the pcv valve on my 1979 oldsmobile. i have a 305 engine. i need to replace it asap, so any help would be appreciated. thanks in advance to all feedback.
- look on the valve covers.it will be at one end with a hose running to the carb.
- Q: need a different pump for? Is this some improvement on the old valve?
- first off they are not new ;-) These two standards have been around a long time. valve stems come in two types, schaeder and presta. Now i sometimes get these mixed up but I think Presta is the narrower valve. If I'm wrong I'm sure someone will correct me ;-) Either way there are these two types. Here we are referring to width/diameter not length. the thicker valves are usually on mountain bikes, some comfort bikes. the thinner narrower valves are usually on road bikes, some cross bikes, the type with skinny tires. Most bike pumps these days whether floor pump to mini pump will work for *both* Schaeder and Presta. The valve end on your pump (unless it's a piece of c*^ from Wallmart) SHOULD simply unscrew, reverses and voila! You can now pump up the tires of your MTB and your road bike or help another rider out! Now, on to your actual question ;-) Sorry for the drift. the long valve stems have to do with Aero wheels. These are rims, usually carbon that are designed to be very narrow and literaly slice the wind for faster acceleration. these are usually road bike rims, the skinny tires. Examples of Aero rims would be like Rolf Elan. Because of the design of the aero rim a longer valve stem is needed or it would literaly be lost within the carbon rim. But you don't have to have aero rims to have a tube with a longer stem. The stems on most tires are available in long, short, medium. I like to have the length match, it's just an aesthetic thing. But the function is exactly the same and the difference in weight is negligable. So to sumarise if you have aero rims you *must* choose tubes with a longer valve stem. If you don't have aero rims you can use them if you like, doesn't really matter, it's all what you like. but you do not need a different pump.
- Q: I have a question about my car. The mechanic told me that my valve body needed to be rebuilt. However I read that the valve body is a sensor that tells the car when to shift gears. Now my car is a semi automatic so I can shift gears myself! I was wondering if someone could tell me whether it was still necessary to rebuild it if I'm going to be shifting gears myself? I just don't want to mess up the valve body even more and eventually have to get a whole new transmission!
- Its an electrically shifted automatic. The valve body is not a sensor it is the valving system that sends fluid to different parts of the transmission to shift gears. The solenoids on the valve body move the valves dependant on what the computer tells it to do. The paddles or shifter you have do not go to the transmission but to the ECU and the ECU decides what to actually do with the transmission. It does not matter if you shift it or let it do it its self if the transmission is going out it needs work or rebuilt, it WILL fail sooner or later and leave you stranded. So you either need to get it rebuilt or get another transmission. If you drive it until it fail you will need another unit, if you fix it now yours might be able to be saved.
- Q: Half-Life 1 and 2 to me were masterpieces. It would be a shame if Valve ended the series there.Is Valve going to make Half-Life 3 in the near future ? If so, do you have any proof ?
- Sorry VALVE can't count to 3, it's a shame really...
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Pipeline Ball Valve-Reduced Bore High-Performance DN 3 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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