Butterfly Valve DN65 D43H-16C D73H-16C D373H-16C
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- Supply Capability:
- 500 unit/month
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Butterfly valve, also called the flap valve is a kind of simple structure of the regulator,
also can be used in low pressure pipeline medium valve butterfly valve in the switch
control the way work is closed a (disc or disc) is a disk, around the axis of rotation to
achieve a valve open and close, mainly in the line cut off and throttling effect.
Butterfly valve opening and closing is a disc-shaped butterfly plate, the body rotation
around its own axis, so as to achieve the aim of opening and closing or adjust.
Introduction to the
Butterfly valve, butterfly valve) : also called butterfly valve worm gear
Definition: open-close part for disc butterfly plate and a valve body axis rotate.[1]
Structure: mainly by the valve body, valve stem, disc and seal ring.The body is
cylindrical, short axial length, built-in butterfly plate.
Using range
Electric butterfly valve butterfly valve is suitable for the generator, gas,
natural gas, liquefied petroleum gas, city gas, cold hot air smelting, chemical
industry and power generation, environmental protection, such as, building
water supply and drainage engineering system of conveying a variety of corrosive,
non corrosive fluid pipe, used to adjust and block the flow of the medium.
Functional purposes
Pneumatic butterfly valve butterfly valve (English: butterfly valve) is to point
to shut down a (disc or disc) is a disk, around the axis of rotation to achieve
a valve open and close, mainly in the line cut off and throttling effect.Butterfly
valve opening and closing is a disc-shaped butterfly plate, the body rotation around
its own axis, so as to achieve the aim of opening and closing or adjust.Butterfly valve
fully open to the barrier is usually less than 90 °, butterfly valve and the adjustment
lever itself has no self-locking ability, in order to butterfly plate positioning, to add
worm gear reducer on the valve stem.The use of worm gear reducer, can not only
make the butterfly plate with self-locking ability, make the butterfly plate to stop at
any position, also can improve the performance of the valve.Industrial specialized
characteristic ability of high temperature butterfly valve, apply pressure range is higher also,
nominal valve size is big, the body is made of carbon steel, valve plate seal using metal ring
instead of rubber ring.Large high temperature butterfly valve USES the steel plate welding
manufacturing, mainly for the duct smoke and gas of high temperature medium.
- Q:What are the butterfly valves models?
- Divided by connection:1 pairs of clip butterfly valveThe butterfly plate of the clip butterfly valve is installed in the direction of the diameter of the pipe. The valve is fully open.The clip butterfly valve is simple in structure, small in size and light in weight. 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.2, flange butterfly valveThe flange butterfly valve is a vertical plate structure, and the stem is a sealing ring of an integral metal hard sealing valveFor flexible graphite plate and stainless steel plate composite structure, mounted on the valve body, butterfly plate sealing surface of stainless steel surfacing. The sealing ring of the soft sealing valve is made of nitrile rubber and is mounted on the butterfly plate.3, lug butterfly valve4 、 welded butterfly valveWelding type butterfly valve is a non sealed butterfly valve, widely used in medium temperature less than building materials, metallurgy and mining, electric power production process at 300 nominal pressure 0.1Mpa pipe, used to open and close connected, or adjust the medium quality.
- Q:Butterfly valves are widely used in 2.0MPa below the pressure and temperature of not more than 200 degrees of various media, right?
- 3. kinds of butterfly valve:According to the connection mode: flange type, clip type.According to the material of sealing surface, soft seal and hard sealing.According to the structural form, butterfly valves can be divided into the following types:Plate typeInclined plate typeOffset plateLever type4. butterfly valve features:(1) the structure is simple and the shape is small. The utility model has the advantages of compact structure, short structural length, small size and light weight, and is suitable for large caliber valves.(2) the resistance of the fluid is small, and when the valve is fully opened, the valve seat passage has an effective circulation area, so the fluid resistance is smaller.(3) open and close, convenient and quick, good adjustment performance, butterfly plate rotation 90 degrees can be completed headstock. By changing the angle of rotation of the disc, the flow can be graded.(4) the opening and closing moment is smaller, because the butterfly plate on both sides of the rotating shaft is basically equal to the medium, and the opposite direction of the torque is generated, so that the opening and closing is more labor-saving.(5) low pressure sealing performance, sealing surface materials generally use rubber, plastic, sealing performance is good. Limited by the material of the sealing ring, the pressure and the temperature range of the butterfly valve are smaller. But the use of hard sealing butterfly valve pressure and temperature range has been greatly improved.
- Q:What is the national standard for clip butterfly valves?
- GB/T 12238-2008 "flange and clip connection elastic seal butterfly valve"GB/T 26144-2010 flanged and clip on steel lined fluoroplastic butterfly valvesJB/T 8527-1997 "metal sealed butterfly valve"
- Q:Butterfly valve is generally used in what position?
- It can also be used for switch control of low pressure pipeline medium.
- Q:What is an electric two position butterfly valve?
- Electric double position butterfly valve belongs to a kind of electric valve and electric control valve. Double eccentric flanged butterfly valve, compact, the product can be used as pipe system shut-off valve, control valve and check valve. With manual control device, once the power failure occurs, you can temporarily manually operated, and will not affect the use. 90 degree rotary switch is easy, reliable and long service life. It is widely used in water supply, power plants, steel mills, paper making, chemical, catering and other systems for water supply, as a regulation and cut-off use.
- Q:Where are the exhaust valves, mud valves and butterfly valves?
- Chemical plant with colloid, puffed agent and granule. Wine industry, paper industry. Butterfly valves are used in petroleum, chemical, food, pharmaceutical, textile, water and electricity, ships, urban water supply and drainage, smelting, and energy systems as regulating and intercepting devices.
- Q:Does the wet alarm valve group need to install the signal butterfly valve?
- Wet alarm valve at the front of the signal butterfly valve with the main floor of the main role of the butterfly valve, first, maintenance, and two is the prompt sprinkler system, there is a signal butterfly valve closed, should be repaired as soon as possible.
- 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:How warm is the PTFE butterfly valve?
- The normal temperature can be kept at 120 degrees and the instant temperature is 150
- Q:What is the principle of butterfly valve and check valve? Any difference?
- Crown valve pressButterfly valve is butterfly valveThe check valve is a check valveButterfly valve is mainly switching functionThe check valve mainly stops the pipe from flowing backwardsThe two can only be said to be valvesThe others are different
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Butterfly Valve DN65 D43H-16C D73H-16C D373H-16C
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 unit
- Supply Capability:
- 500 unit/month
OKorder Service Pledge
OKorder Financial Service
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