Butterfly Valve DN250 D373H-16C D343H-6C D343H-10C D343H-16C H343H-25C

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 10 unit

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's the use of fire butterfly valve?: Its working principle is as follows:1, the signal butterfly drive by the worm gear drive shaft and butterfly plate rotation, realize the opening and closing and control flow.2, rotating worm gear drive handwheel, so that the butterfly plate to open and close and adjust the flow of purpose, hand wheel clockwise rotation for the valve closed.3. The worm gear drive box is equipped with micro switches in two forms:A, in the gear box body is provided with open and close direction two microswitches, respectively, when the valve fully open and close action, connected to the control room "valve open" valve off "light source, to accurately display the switch state of the valve.B, the transmission device is arranged in the box body the microswitch (disc position close to 0 degrees), when the butterfly plate from 0 degrees to 40 degrees when the position of a micro switch, the output valve closed signal, 40 degrees to 90 degrees when the position of another pair of normally closed output valve opening signal. A cam that adjusts the touch microswitch and shows the different positions of the disc.The fire in the fire that is the switch signal butterfly valve in the pipe network, because the fire pipe water must be kept clear, so as to ensure the timeliness of fire, so the signal valve once closed, will tell the host signal module alarm, fire control network notify the monitoring center is closed.

Q: How many kinds of butterfly valves are there?: What's the score?There are central butterfly valve, double eccentric butterfly valve, three eccentric butterfly valveAnd according to the materialAnd according to the way of connection

Q: Transformer butterfly valve and pressure relief valve difference: The butterfly valve is usually fitted with an oil immersed transformer between the tank and the radiator to control the flow of oil between the transformer tank and the heat sink. When large power transformers are delivered, the radiators are usually individually packed to reduce transport sizes. The butterfly valve is closed to prevent the outside air or water from entering the transformer tank. When the transformer is transported to the installation site, the radiator is installed on the butterfly valve one by one. When the radiator is installed, the butterfly valve can be opened so that the oil flow between the transformer, the oil tank and the radiator can be circulated, so as to play the role of heat dissipation.When the transformer is running, it is found that when the radiator has seepage, the butterfly valve can be closed to avoid further leakage of transformer oil, and a new radiator can be replaced.

Q: What does butterfly valve nps12cl150d373f4-150lb stand for?: NPS (Nominal, Pipe, Size) abbreviation. Refers to the connection (including flanged and welding end) of the nominal diameter, followed by a digital unit is American Standard inches, 12 inches.NPS12 labeling system.CL is the abbreviation for class, and LB150 means the pressure is 150 poundsD stands for butterfly valves3 is expressed in the form of a turbine drive7 means of connection: to clip3 means sealing: 3 eccentricF4: the sealing material is PTFE

Q: In the pipeline attached building Atlas 05S502, in the middle of a water meter and check valve, the two sides are divided into two butterfly valve, want to ask why to arrange this way, what is the role of the two butterfly valve?: Check the water gauge and check valve on both sides to facilitate the maintenance and replacement of water meter and check valve.

Q: Gate valve and butterfly valve which is installed when there is a direction?: There is no direction when installing the valve. The butterfly valve has an eccentric butterfly valve which is in the direction of installation

Q: How is the lug butterfly valve connected to the flange?: It is clip type butterfly valve.Connection way is to use butterfly flange flange.The sealing surfaces at the ends of the two rubber sealing rings are respectively butted with the welded flanges welded on the pipe; the two headed screws and the nuts are used for fastening.

Q: Which is expensive, butterfly valve?: Butterfly valve is more common, less material and simple structure. Butterfly valve cheaper

Q: can't locate freon intake valve for 03 jaguar an was wondering were it is located at: There is no Freon intake valve for an 03 Jaguar. Freon is R12 refrigerant and the vehicle uses an R134a refrigerant system. There is also no such thing as an intake valve on any vehicle refrigerant system. There is a high pressure port and a low pressure port. To answer your question: under the hood. Any other information would likely endanger your life, since this is obviously a DIY question and you lack the knowledge to safely recharge your vehicle's refrigerant system. R134a refrigerant, if inhaled, can kill you. Do not turn a DIY project into a DIE project. Leave the complicated stuff to the professionals.