Resilient seated double eccentric flanged butterfly valve DN40-DN1800
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 unit
- Supply Capability:
- 1000 unit/month
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1.Technical Date:
Size: DN100-DN4000
Nominal Pressure: PN10/PN16
Operation Temperature: -10°C~150°C
Suitable Medium: Water,Sewage,Seawater,Gas,Food,Oils,etc.
2. Standard
Design Standard: GB/T 12238-2008
Structural Length: GB/T 12221-2005
Top Flange dimensions: ISO5211
Face to face dimensions: GB9112,DIN2501,BS4504,ISO2084,ANSI125
Type of connection:Flanged type
This valve is mainly composed of body, disc, stem, seat and transmission equipment. Simple, compact structure, small, portable, convenient transportation, installation and removal. 90 degrees, opening and closing of the switch is rapid, operation is small, light energy, sealed performance is good, service life is long, can achieve zero leakage. Flow curve tending to straight line. Excellent regulation performance.
4. Sealing performance:
Rubber seal valve, close the disc and seat sealing performance is good, and the torque is small. Is small, the friction between the butterfly plate and valve seat seal. Disc of the valve shaft drive, butterfly plate do rotate 90 degrees. Butterfly plate, flexible for opening and closing, without jamming, jumping phenomenon, small torque. Large diameter valve can replace the sealing ring online, convenient maintenance. Reverse valve seal is not good
- Q: does it come in when you go over a certain rpm or do the valves change depending on how far you depress the throtle?
- The variable is the valve timing. The spark plug fires a split second before the piston reaches the top of the stroke, to give the fuel a bit of time to burn. But, the faster the piston travels in the bore, that split second gets shorter shorter. So the engine computer changes when the spark plug fires when the valves close, to maximize the power from each ignition stroke.
- Q: What's the difference between the three eccentric butterfly valve and the two eccentric butterfly valve?
- Single eccentric butterfly valve: extrusion problems, address concentric butterfly valve and valve seat of the resulting in a single eccentric butterfly valve, the structural characteristics of the stem axis deviated from the disc center, so that the butterfly is no longer a rotary bottom plate, axial dispersion, reduce the excessive squeezing and the lower end of the seat of the butterfly board. Double eccentric butterfly valve: in the single eccentric butterfly valve on the basis of further improvement of forming, is the most widely used double eccentric butterfly valve.
- Q: 16 inches below the choice of electromagnetic valve can be the same, it turned out to be DN200 election 1/4, and now there are DN350 can also use this? With it, limiter, pressure relief valve, locator model will change?
- DN200 pick 1/4DN350, DN400 corresponding solenoid valve, you can choose 3/8 hose 12mmOther accessories are related to valve path and pressure. If the same series, the valve has no change at all.
- Q: Transformer butterfly valve and pressure relief valve difference
- The oil immersed transformer pressure release valve is a safety device installed in the transformer, when the internal pressure is less than the limit value of the transformer such as 35kPa, which is in closed state, when the transformer internal fault occurs, a large number of transformer oil by pyrolysis, produce large amounts of gas, the internal pressure of the oil tank increased dramatically when the opening pressure exceeds the pressure release valve when the pressure relief valve opens, the internal oil and gas overflow, to release the pressure, avoid the pressure on the inside of the lead tank cracking or permanent deformation, when the fault of transformer internal end, internal pressure tank to reduce pressure release valve closing pressure, it will automatically shut down to prevent outside air enter the inside of the tank or water.
- Q: What's the difference between a clip on handle butterfly valve and a turbo butterfly valve? Where are they used?
- Just drive differently,Handle butterfly valve is generally small caliber, because generally small caliber torque smaller, can be directly opened and closed by handTurbine butterfly gear box drive stem rotation.The selection principle for when the stem torque is greater than 300N.M when used in gear box drive gear box, and use the handwheel control hand wheel force is not greater than 300 nm.
- Q: Butterfly valve is the control valve?
- The flow characteristics of butterfly valves can be approximately equal percentage characteristics, with the positioner can do adjust, is mainly used in large caliber, straight stroke control valve more than 200 volume weight will be great, it suggests using the butterfly valve.
- Q: What's the difference between turbine butterfly valve and manual butterfly valve?
- Butterfly (Manual butterfly) butterfly plate installed in the direction of the diameter of the pipe. In the butterfly valve body cylindrical channel, the disc shaped disc rotates around the axis. The angle of rotation is between 0 and -90 degrees. When rotating to 90 degrees, the valve is fully open.Butterfly valve structure is simple, small size, light weight, only by a few parts. The utility model can be rapidly opened and closed only by rotating 90 DEG, the operation is simple, and the valve has good fluid control characteristics. When the butterfly valve is in the fully open position, the butterfly plate thickness is the only resistance when the medium passes through the valve body, so the pressure drop produced by the valve is very small, so the flow control characteristic is better. 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.
- Q: DN80 flange butterfly valve, DN80 flange butterfly valve DN80, flange butterfly valve DN80 what is the difference?
- No, what's the difference?. It's not all the same.Flange connectionDN80 caliber butterfly valve. What's the difference?. Model and pressure. Materials are not ~!
- Q: Which is expensive, butterfly valve?
- Butterfly valve is more common, less material and simple structure. Butterfly valve cheaper
- Q: What's the difference between electric butterfly valve and electric two way valve?
- The valve can only be fully open or fully closed, so the controller only need a 1/4 angle stroke in control, so you only need to open and closed position control. The butterfly valve can be opened and closed at any position within 90 degrees, so a positioning device is needed on the electric head. If the valve is used (such as double eccentric butterfly valve or three eccentric), due to the eccentric effect, need to always have a butterfly valve opening and closing positions to control the torque of Disc Edition in the stem, especially in the valve closed to non preferred direction needs a torque to ensure the butterfly valve, which requires control device to provide a torque to make butterfly valve position or seal. Therefore, the ball valve only needs to drive device to meet the opening and closing, two positions can be, and butterfly valve but in the switch of the whole trip in the control.
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Resilient seated double eccentric flanged butterfly valve DN40-DN1800
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 unit
- Supply Capability:
- 1000 unit/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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