Butterfly Valve Made in China High Quality

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1.Manual Wafer Butterfly Valve Description

A butterfly valve is a valve which can be used for isolating or regulating flow. The closing mechanism takes the form of a disk. Operation is similar to that of a ball valve, which allows for quick shut off. Butterfly valves are generally favored because they are lower in cost to other valve designs as well as being lighter in weight, meaning less support is required. The disc is positioned in the center of the pipe, passing through the disc is a rod connected to an actuator on the outside of the valve. Rotating the actuator turns the disc either parallel or perpendicular to the flow. 

2.Main Features of the Manual Wafer Butterfly Valve 

1)Small in size and light in weight and maintaince. It can be mounted whereever needed.

2)Simple, compact structure, quick 90 degree on-off operation.

3)Disc has two-way bearing, perfect seal, without leakage under the pressure test.

4)Flow curve tending to straight-line. Excellent regulation performance.

5)Various kinds of materials, applicable to different medium.

3. Manual Wafer Butterfly Valve Images

 Butterfly Valve  Made in China High Quality

Butterfly Valve  Made in China High Quality

Butterfly Valve  Made in China High Quality

4.Manual Wafer Butterfly Valve  Specification:

Size

DN40-DN1200

End flange

ANSI B 16.1, EN 1092, AS 2129

Face to face

ANSI B 16.10; EN 558-1 Series 20

Top flange

ISO 5211

Normal Pressure

DN40-DN600 PN1.0/1.6MPa (150/200PSI) DN700-DN1200 PN1.0MPa (150PSI)

 

Body

CI/DI/WCB/ALB/CF8/CF8M

 

Disc

DI/ALB/Rubber lined Disc/ 1.2501/CF8M/1.4529/CF8/Hastelloy Alloy/Monel

Stem:

416/304/316/431/17-4PH

Seat

NR/Hypalon/EPDM/Neoprene/NBR/Wear-Resistant  EPDM/Viton/Silicon/Heat-Resistant EPDM/White NBR/White EPDM/EPDM (NSF)/PTFE

Suitable Temperature

-40c~80c

 

Apply

Fresh water, sewage, sea water, air, vapor, food, medicine, oils, alkalis, salt etc.

5.FAQ

1. What is manual wafer butterfly valve?

 Wafer style is the more common of the two and is less expensive than the lug style. The wafer style butterfly valve is just about the standard. It ís so common that no one even bothers to use the word "wafer" when ordering a butterfly valve. It is taken for granted that if a butterfly valve is ordered, a wafer style will be received.

2. What is the working principle of manual wafer butterfly valve?

A butterfly valve is from a family of valves called quarter-turn valves. In operation, the valve is fully open or closed when the disc is rotated a quarter turn. The "butterfly" is a metal disc mounted on a rod. When the valve is closed, the disc is turned so that it completely blocks off the passageway. 

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Q:It is different from the butterfly valve butterfly valve
Butterfly valve is clear that the butterfly, because it is so called as valve plate, butterfly valve.
Q:CAD drawing of butterfly valve
Your question is very international. Ha-haThis method of painting is not clear in one or two words.First you'll know the map, then you'll use CAD, so the two will add up.Guess you will.
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 does "10" in the butterfly valve "D71X-10" mean?
The pressure of 10 kg 1.0MPA is usually cast iron
Q:What does "D41X-16" mean?
D butterfly valve, 41 flange connection, X rubber seal, 16 kg pressure
Q:Is the pressure test of the centerline butterfly valve checked or checked?
The pressure test of the central butterfly valve is carried out at each station.Basis:1) GB/T12238-2008 flange and clamp connection elastic seal butterfly valveRules: butterfly valve must be carried out by factory inspection and testing, inspection qualified before leaving the factory.2) CJ/T 261-2007, butterfly valves for water supply and drainageRules: each product shall be inspected by factory and quality inspection department. After inspection, the product certificate shall be attached to the factory.Butterfly: also known as butterfly valve, control valve has a simple structure, can be used for low pressure pipeline valve switching control is closed parts (disc or disc) is a disk, around the valve axis to achieve the opening and closing a valve, the valve can be used to control air, water, steam, all kinds of corrosive media, mud, oil, metals and radioactive liquid media and other types of fluid flow. On the pipeline, mainly from cutting and throttling. Butterfly valve headstock is a disc shaped disc, in the valve body around its own axis of rotation, so as to achieve the purpose of opening or closing or regulation.
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 an ERG valve?
EGR stands for exhaust gas recirculation. It recirculates your exhaust gases back into the combustion chamber to lower temperatures and NOx emissions. This valve commonly gets clogged with carbon due to the fact it's recirculating exhaust gases. If the diaphram is not broken or damaged and still works, frequently you can simply remove the EGR valve and have the carbon cleaned out. It's a dirty job, but can be done if you can get to the EGR valve. If you do need to purchase the part it typically runs about $175. Labor charges will depend on where it's located.
Q:The difference between butterfly valve d71x_10s and d341s-10
Before distinguishing between the two, you must first read the identification of the valve type:D stands for butterfly valves,3 means that the worm gear is connected and the drive does not indicate the handle7 and 4 indicate pipe to clamp connection, pipe flange connection, respectively1 means single eccentric, that is, the stem is not in the center of the butterfly plateThe former S indicates the material name of the valve body - plastic, X means sealing and the lining material is rubberThe latter S indicates the sealing lining material code ---- plastic, and the valve body is cast iron.10 means stress.
Q:anti siphon valve?
If the antisyphon valve is not leaking maybe you should focus attention on the main valve ( assuming it is a solenoid valve) to see if it closes completely. Another thing, if the irrigation zone is on an incline then the water in the system will drain to the lowest point. Sometimes it drains slowly causing the impression of a leaky feed valve.

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