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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Specification
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: What do you mean, handle, butterfly valve, hard back and soft back?
- The butterfly valve of the handle butterfly valve is installed in the direction of the diameter of the pipe. In the butterfly valve body cylindrical channel, the disc shaped butterfly plate revolves around the axis, the rotation angle is between 0 degrees -90 degrees, when rotates to 90 degrees, the valve is fully open. This valve is mounted horizontally.Butterfly valve has an elastic seal and metal seal two types of seals. Resilient sealing valve. The sealing ring can be mounted on the valve body or attached to the periphery of the disc.The hard back is the metal seal, and the soft back is the elastic seal.
- Q: How do you explain A in butterfly valve D37A1?
- Represents a seal or lining material symbol.Said sealing ring or lining material with the Chinese phonetic alphabet: B Babbitts D nitrided steel, acid resistant stainless steel H, J L Aluminum Alloy, hard rubber, nylon NL, P leather, SA PTFE, SC PVC, SD bakelite, T copper, TC enamel, X rubber, Y hard alloy
- Q: Model specification for butterfly valves
- Butterfly valve type to clip type:D7A1XR-16 50mm-1200mm D7A1XD-16 50mm-1200mm D7A1XN-16 50mm-1200mm D7A1FR-16 50mm-1200mm D7A1FD-16 50mm-1200mm D7A1FN-16 50mm-1200mm 偏心式 :D73F-16 50mm-300mm
- Q: What do D71, D371 and D341 represent in butterfly valves?
- D71 is a handle to clip butterfly valveD371 is a turbine to clip butterfly valveD341 is a manually operated double flanged butterfly valve
- Q: What's the difference between cut-off valve, gate valve and butterfly valve? What's the difference in the working principle?
- Stop valve is closed parts (valve) moving along the centerline of the valve seat, the valve stem to open or close the trip is relatively short, but very reliable cut off function, and because changes in the valve seat and the valve stroke is proportional to the amount of adjustment is also very suitable for convection.Check valve: also known as counter flow valve, check valve, back pressure valve or one-way valve, such valves are dependent on the flow of the pipeline itself flow force and automatically open and close, belonging to an automatic valveButterfly valve: it is a kind of valve which uses disc type opening and closing parts to turn back and forth about 90 degrees to open, close and adjust the passage of fluidGate valve is closed parts (RAM) along the vertical axis of the mobile channel valve in the pipeline, used primarily as a medium cut that open and close, generally do not have to do with traffic regulation, it can be used for low temperature and low pressure can also apply to high temperature and high pressure, and according to the different valve material is different in various media. The valve, the valve is the most widely used.
- Q: Gate valve, butterfly valve and so on can do the valve so that?
- Do a lot of use valve and butterfly valve, pneumatic / hydraulic, or electric device, automatic control valve, adjust its switch angle, so as to achieve the purpose of regulation. For example, in the factory, in order to ensure the top pressure, then the pressure regulating valve, the valve is automatically adjusted by a butterfly valve! And there is also pressure regulator, pressure regulator valve series is used independently. Of course the more, is mainly used to adjust the flow!
- Q: How do the butterfly valves d341 and d343 differ in appearance?
- A difference in appearance:D341 is a wedge type single gate structureThe D343 is a parallel single gate structureIn addition, the structure is different. D341 butterfly valves are single eccentric, while the D343 is three eccentric. Three eccentric can do zero leakage, and single eccentric can not.D341:D: butterfly valve (die, the first letter of Pinyin)3: turbine drive (6) for pneumatic, 7 for hydraulic, and 9 for electric)4: flange connection (this additional: 7 for the pair, 6 for welding)1: midline form (another supplement: 2 represents double eccentric, 3 represents three eccentric)D343:D: butterfly valve abbreviation3: hand wheel drive4: flange type3: three eccentric.
- Q: DN80 flange butterfly valve, DN80 flange butterfly valve DN80, flange butterfly valve DN80 what is the difference?
- Of course there are differences, the general market sales of the DN80 are many flange plate copper rod butterfly valve, quality can not reach the national standard, to use copper rod copper butterfly valve quality is king.
- Q: Butterfly D371X5-16ZB1 what does each letter stand for?
- Daily valve pressThe regular model is out of step with you. I can only explain the regularD371X5-16ZB1D is butterfly valve3 is the turbine drive7 is the clamp connection1 is the display opening signX is a rubber seal16 is 16 kg pressureI don't know the other superfluous letters
- Q: Hi guys, i asked a question before pertaining to the amount of cylinders and asking if it meant V4 or V6 or whatever.I actually meant to say VALVES, not cylinders. IS there a direct correlation between VALVES and Clyinders..Eg, My car, which is a 2001 Neon LE states right on the engine block quot;16 VALVEquot; in bright letters. I am sure this is a 4 cylinder engine. I haven't had a car that broadcasted the number of VALVES before. Another car I had broadcast that is was a 3.3 Liter V6 right on the engine.Is there a mathematical relationship between VALVES and cylinders, or would my car be braodcasting 16 VALVES, because a 4 cylinder doesn't typically HAVE 16 valves, or what is the story??Recently, I was looking at an altima, and it said 24 valves. Can you tell just by the number of valves if it is a 4 cylinder or 6 cylinder or whatever??Thanks.
- for every cylinder there is 4 valves..
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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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