Butterfly Valve DN450 D373H-16C D343H-6C D343H-10C D343H-16C H343H-25C

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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 does "D341X-16Q" mean?What do D341-16Q letters and numbers mean for butterfly valves?: D - valve type code: Butterfly valve;3 - valve drive mode code: worm gear;4 - valve connection form code: flange;1 - valve structure type code: vertical plate type;X - seat sealing surface or lining material code: rubber;16 - nominal pressure value: PN1.6MPa;Q - body material code: QT400 - 15.

Q: Classification of telescopic butterfly valve: 2) additional torque seal butterfly valve. The seal is produced by a torque that is applied to the valve shaft(2) pressure sealed butterfly valve. The pressure is greater than the pressure on the seat or plate(3) automatic sealing butterfly valve. The pressure of the seal is automatically generated by the pressure of the medium. (1) vacuum butterfly valve. Butterfly valve with lower working pressure than standard atmosphere.(2) low pressure butterfly valve. Butterfly valve with nominal pressure PN<1.6MPa.(3) medium pressure butterfly valve. Butterfly valve with nominal pressure PN 2.5--6.4MPa.(4) high pressure butterfly valve. Nominal pressure PN is 10. 0--80.0MPa butterfly valve.(5) ultra high pressure butterfly valve. Butterfly valve with nominal pressure PN>100MPa. (1) high temperature butterfly valve. T>450 C butterfly valve

Q: What is the difference between turbine butterfly valve and flanged butterfly valve?: The worm gear is the driving mode and corresponds to the handle; the flange is connected and corresponds to the clamp. Flange worm valve is generally, the handle of the butterfly valve

Q: Model specification for butterfly valves: Various classifications of butterfly valves1. classification by structure:(1) Central sealed butterfly valve(2) single eccentric sealed coal valve;(3) double eccentric sealed butterfly valve(4) three eccentric sealed stamp valve;

Q: What's the difference between a clip type turbine butterfly valve and a flanged turbine butterfly valve?: For clip butterfly valves, there are no flanges at the ends of the butterfly valve. There are only a few guide bolts. The valve is connected with the end flange with a set of bolts / nuts.In contrast, the demolition to facilitate some of the lower cost of the valve, but the drawback is that a sealing surface problems, the two sealing surfaces have to be taken apart.Flange butterfly valve at both ends of the flange, and pipe flange connection. The seal is relatively more reliable, but the valve is of relatively high cost.

Q: Seat has said to the previous owner that the car needs a new air mass meter and dump valve.I am putting a new air mass meter on it.Does it have a dump valve.I know very little on this subject.: every turbo will have a dump valve(waste gate) to regulate the boost to the engine Dump valves are fitted to the engines of turbo charged cars and sit between the turbo outlet and the throttle body. When transitioning from a boosted state to a closed throttle state (as in between shifts), due to inertia, the turbo continues to pressurize air, but the closed throttle prevents the compressed air from entering the engine. In this case the pressure exceeds the preset spring pressure in the dump valve and the excess pressure is bled off to atmosphere. Even with a dump valve the compressed air acts as a brake on the turbo (slowing it down), because the pressure on the backside of the turbo is at a higher pressure than on the front side (and the air actually wants to flow through the turbo backwards). A blowoff valve is a more elegant solution to this problem by allowing the turbo to freewheel when the throttle is closed (equalizing the pressure on both sides of the turbo). Unlike a dump valve a blowoff valve can be used at multiple boost settings without reconfiguration. Blowoff valves are sometimes incorrectly called dump valves because they serve a similar function, but they are very different solutions to the same problem.

Q: How does the pneumatic butterfly valve control the angle of opening?: This is really not good, control seems to be pneumatic defects, can only rely on the feeling

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: Who was the first doctor to discover Pulmonary Valve Stenosis? Also, who was the first doctor to perform surgery for it? Please and thank you for your help.P.S. I have this condition.: 1761 - Pulmonary valvar or valvular stenosis is one of the more common forms of congenital heart malformations and it has been extensively studied since the original description of pulmonary valve stenosis by John Baptist Morgagni in 1761. 1888 - Tetralogy of Fallot, first characterized by Dr.Etienne Fallot in 1888, is present in about 3000 children born each year in the United States. It is a combination of four heart abnormalities. Dodrill and his colleagues employed it with success for the open correction of a stenotic pulmonary valve in October 1952.

Q: What does "D41X-16" mean?: There are many kinds of valves, so each valve has a specific model. Butterfly valve D41X-16 code D refers to the butterfly valve, 4 refers to the connection form is flange, 1 refers to the drive mode is manual, X is the valve sealing ring material is rubber, 16 refers to pressure, 16 kg. Valve model is composed of seven elements: valve type, connection form, drive mode, structure, sealing ring material, nominal pressure, material. You can ask me if you don't understand. Dual valve []

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