Ventilation Butterfly Valve ;Butterfly Valve ;High quality valve
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 pc
- Supply Capability:
- 30000 pc/month
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Item specifice
Usage & Feature
The seal ring of ventilation butterfly valve is made of the material same as body material, and the applicable temperature is up to the body material, PN≤0.6MPa, generally used to the pipelines of industry, metallurgy, environmental protection as ventilating and adjusting the flow.
Main features:
Novelty and reasonable design, unique structure, light, prompt open/closure.
Small torque, convenient operation, flexible and labor saving.
Follw proper material to meet low, middle, and high service temperature and corrosive medium, and so on.
Applicable Standard
Design standard: GB/T12238-1989 ; JB/T8692-1998 ; CJ/T261-2007
Flange dimension: GB/T9115.1-2000
Face-to-face: GB/T12221-1989
Pressure test: GB/T13927-1992 ; JB/T908292-1999
Main Technical Parameter
Nominal Diameter | DN(mm) | 50~2000 | ||||
Nominal Pressure | PN(MPa) | 0.05 | 0.25 | 0.6 | ||
Intensity Test | 0.075 | 2.4 | 3.75 | |||
Seal test | ≤1.5% Leakage | |||||
Method | Manual / gear / pneumatic / electric | |||||
Applicable Medium | Air / water / steam / coal gas / oil product, etc. |
Please consult customer service before placing an order( in order to confirm with size and material of the relevant product).
Material for main parts
Parts Name | Material |
Body | Cast steel / Stainless steel / Cr-Ni-Mo Ti steel and special material |
Disc | Cast steel / Stainless steel / Cr-Ni-Mo Ti steel and special material |
Seat | Same as body material |
Stem | Carbon steel / 2Cr13 / Stainless steel / Cr-Ni-Mo-Ti steel |
Packing | Flexible graphite / fluorine plastic |
Please consult customer service before placing an order( in order to confirm with size and material of the relevant product).
- Q:I was wondering if someone could tell me the manufacturing date on this aircraft engine valve.
- Wow Hannah! That's a cool find for sure! It appears to be possibly a valve for a radial aircraft engine as it looks very similar to ones i've seen used in Pratt+Whitney R3350's etc. It looks like it could probably date to the 1940's up thru the 1950's. Look for a Part Number stamped on the valve or on the box. After WW2 there were all kinds of manufacturers making parts for airplanes. Many were gobbled up by competitors, converted to manufacturing other products or went out of business altogether. However, a few did hang on....and I think this may be what has become of Thompson Aircraft today.... Thompson Aerospace, Inc 22431 Antonio Parkway B160-102 Rcho Sta Marg, CA 92688-2804
- Q:I did a compression check on my 350 chevy. I have low compression of 175psi on one cylinder.The other seven cylinders range from 195psi to 205psi Could the valves be too tight on the cylinder with 175 psi compression?
- Chev engines have hydraulic lifters, keeping the valves adjusted correctly at all times. 20 lbs isn't much to worry about anyway, but if you want dump a little oil (about a tablespoons worth) into that cylinder and recheck it. If the compression jumps up, then your rings are getting weak. If not, you may have a leaky valve.
- Q:What are the butterfly valves models?
- Divided by way of drive(1) electric butterfly valve(2) pneumatic butterfly valve;(3) hydraulic butterfly valve;(4) manual butterfly valve;In the form of structure:(1) Central sealed butterfly valve(2) single eccentric sealed butterfly valve(3) double eccentric sealed butterfly valve(4) three eccentric sealed butterfly valve;
- Q:What's the difference between an electric two position control valve and an electric butterfly valve?
- With manual control device, once the power failure occurs, you can temporarily manually operated, and will not affect the use.The biggest difference is that the electric double bit butterfly valve can not fine adjustment; and the electric butterfly valve can play a regulating role.
- Q:Butterfly valve use
- On the pipeline, mainly from cutting and throttling. Butterfly valve headstock is a disc shaped disc, in the valve body around its own axis of rotation, so as to achieve the purpose of opening or closing or regulation. Butterfly valve is fully open to fully closed is usually less than 90 degrees, butterfly and butterfly stroke itself has no self-locking capability, in order to position the disc to install the valve stem on the worm gear.
- Q:Butterfly valve in use when should pay attention to what problems?
- In the process of using the butterfly valve, you should timely notice valve state, without excessive loosening, no abnormal leakage, or abnormal high temperature and so on, if there is abnormal, should immediately close the valve, to identify the reasons for the problem, treatment after use, it is also very important.
- Q:For whatever reason, Mazda has made it next to impossible to change the PCV valve on the 929. I'm going to have to pull off the plenum and the passenger's side valve cover to replace a $2.00 PCV valve. Before I get too involved, I need to know the torque specs for the valve cover. Also, any other tips on this process would be greatly appreciated. Can I reuse the old valve cover gasket if it's still in good shape? Should I use any kind of sealant in addition to the gasket when I put it all back together? Thanks in advance, by looking at this motor, I can tell I'll have my work cut out for me (for a friggin $2.00 PCV valve, it's usually SO simple!). Like I said, any and all help is greatly appreciated.
- you do not torque valve covers down, buy a new gasket , I would get a good quality rubber one and some blue rtv sealer, clean any crap off the valve cover no glue no bits of gasket nothing, same thing on the head surface, glue the gasket on the valve cover, let it set, then carefully put it on, start with the bolts in the middle and work out finger tight all of them, then just snug the bolts down, dont crush the gasket, you can also use a light duty locktite to hold them in place, and often times old valve covers are warped, it is too your advantage to make sure its as flat as you can get it, or spend a few bucks a buy a new one. your choice, but snug the nuts down good with out crushing and bending the thin sheet metal of the valve cover.
- Q:How big is the butterfly valve with a diameter of 80?
- Generally speaking, especially small caliber, the butterfly valve will not use the variable diameter. Therefore, the butterfly valve DN and pound class selection, according to the field pipeline flange DN and pound level.So, in a strict sense, the caliber of the butterfly valve and the diameter of the pipe have not much relationship.Specific to your pipe diameter, there are questions: 80 diameter refers to the outer diameter or inside diameter? Yes, there is no flange on the site. Do you need a pair of flanges to be supplied?
- Q:What is the meaning of American Standard butterfly valve B series
- American Standard flange connection is divided into A, B series. A series for normal flanges, B series for compact flanges. 24 "to no AB series, flange standards for B16.5, 24" above B16.47.
- Q:The difference between the directly buried gate and the flange valve and butterfly valve
- The flange gate valve is stable and reliable when used in the pipeline, so the flange gate valve is used on the high pressure pipeline.Butterfly valve refers to the closure of parts (valve or butterfly plate) as the disk, around the valve shaft to achieve rotation and closing of a valve, the main cut off on the pipe and throttling role. Butterfly valve headstock is a disc shaped disc, in the valve body around its own axis of rotation, so as to achieve the purpose of opening or closing or regulation. Butterfly valve used in furnace, coal gas, natural gas, liquefied petroleum gas, city gas, hot and cold air, chemical smelting and power generation environmental protection engineering system, conveying a variety of corrosive and non corrosive media pipeline, used to adjust and cut off the media flow.
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Ventilation Butterfly Valve ;Butterfly Valve ;High quality valve
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 pc
- Supply Capability:
- 30000 pc/month
OKorder Service Pledge
OKorder Financial Service
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