Ductile Iron Butterfly Valve Of Good Quality Made In China

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Tianjin
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TT OR LC
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50 set
Supply Capability:
1000 set/month

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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. Unlike a ball valve, the disc is always present within the flow, therefore a pressure drop is always induced in the flow, regardless of valve position.

 

2.Main Features of the Manual Wafer Butterfly Valve 

a)Cast hole. Flange connection meet ANSI 125/150#   DIN PN10/16   BS4504 PN10/16 in the meanwhile.

 

b)Soft seat. Replaceable. Increase of service life.

 

c)Double half shaft without pin.

 

d) Square and short neck. Easy to stick scutcheon and cost saving.

 

3. Manual Wafer Butterfly Valve Images

 Ductile Iron Butterfly Valve Of Good Quality Made In China

Ductile Iron Butterfly Valve Of Good Quality Made In China

4.Manual Wafer Butterfly Valve  Specification

1)Size: DN40-DN1400 
2)Material:body-CI/DI/WCB/SS 
disc:DI/CF8/CF8M/C95400 
3)Professional Maufacturer for more than 10 years

5.FAQ

 

1. What is manual wafer butterfly valve?

A: 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. How about the Installation of the Wafer Style Butterfly Valve?
A: Butterfly valves are installed by inserting the valve between two flanges using bolts or studs and nuts to hold it all together. This type of installation, of course, makes it impossible to disconnect just one side of the piping system from the valve. That benefit is received using the lug style valve.

 

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

 A: 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. When the valve is fully open, the disc is rotated a quarter turn so that it allows an almost unrestricted passage of the fluid. The valve may also be opened incrementally to throttle flow.




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Q:Which brand of electric valve is good?
Electric valve does not need to use imported, domestic boutique can meet.
Q:I want to act as a proxy valve
As the saying goes, the valve does not break up. The type of valve is too much, I do not know what you want to proxy valveIf you want to take advantage of the price, please go to Tianjin, or go to the township of Henan valve to see the followingIf you want to take advantage of quality, please go to Henan's Gaoshan Valve Co., Ltd., Yu Ming Valve Co., Ltd., Zhengzhou high and low pressure valve Co., Ltd... I am the valve distributor in Shenyang
Q:What does the valve stroke mean?
Valve stroke is the distance from one position to another. Usually in the first position of the cut position, the second position is put through the position. Unless the valve has 3 positions.
Q:Which valves are installed in a directional manner?
Regulating valve, stop valve, eccentric butterfly valve, check valve, one-way valve, solenoid valve, pressure reducing valve, drain valve and drain valve. Needle core valve, V ball valve, part of the ball valve, there is flow.Few. Such as floating ball valve, the central butterfly valve does not flow requirements. In general, if the regular manufacturers of valves, flow direction will indicate the flow of medium, to get the valve can see.
Q:How to carry out the valve strength test and air tightness test?
All the factory must go through the valve pressure test, strength test for 1.5 times the nominal pressure, closed at both ends of the valve import and export, fully open the valve test pressure for 1 - 5 minutes, see the specific situation, also called low pressure seal test seal test pressure seal test, 0.6MPa. Also 1.1 times the seal hydrostatic test, specific, you see, JB/T9092 standard, very detailed
Q:What does "DN15" mean? What does "PN 16" mean?
DN15 refers to the diameter of the valve, that is to connect the caliber of the pipe.PN16 means pressure, that is, 16 kilograms (1.6MPa).
Q:Where is the Shanghai valve? What brand is good?
Shanghai has four well-known valves: Shanghai high valve group Co. Ltd., Shanghai Valve Co., Ltd. Shanghai Jinggong valve factory, Shanghai Valve Factory Co., Ltd.
Q:Pressure gauges, safety valves and other safety accessories and the cylinder can be installed between other valve components,
The pressure gauge shall be fitted with three way cock.The safety valve does not install any valves and other components on the boiler. Can be installed in the pressure vessel, but when the equipment is running to handle and open the valve, plus seals, hang the obvious mark, a warning can not be closed.
Q:Proportional valve why than other small pipeline valves
3.9 automatic control valveGraphical representation of numbers, names, symbols3.9.1 a pneumatic valve film head cut off the gas valve to maintain the original opening3.9.2 pneumatic valve closed to prevent head cut off the gas valve does not close the film3.9.3 prevent full pneumatic valve head valve does not open cell membrane3.9.4 basic type of pneumatic control valve3.9.5 pneumatic open pneumatic control valve, film head inflating valve opens3.9.6 pneumatic closed pneumatic control valve with membrane head closed3.9.7 pneumatic butterfly valve basic type3.9.8 pneumatic open air butterfly valve, film head inflating valve opens3.9.9 pneumatic closed air butterfly valve with film head closed3.9.10 pneumatic three way regulating valve combined type3.9.11 pneumatic three way control valve split flow type3.9.12 pneumatic valve with hand wheel basic type. Other types of valves with graphics by "people"3.9.13 with handwheel and positioner pneumatic control valve basic type. Other types of valves with graphics by "people"3.9.14 pneumatic cut-off valve three through 1 - 2 head membrane inflatable membrane head 2 - 3.3.9.15 electric control valve refers to the electric actuator with magnetic amplifier actuator3.9.16 electric valves are driven by ordinary single-phase or three-phase electric heads (motors)3.9.17 electric gate valves are driven by ordinary single-phase or three-phase electric heads (motors)3.9.18 electric butterfly valves are driven by ordinary single-phase or three-phase electric heads (motors)3.9.19 two position two way solenoid valve3.9.20 two bit, three way solenoid valve has 1 - 2 electricity, no electricity 2 - 3 links3.9.21 two position, five way solenoid valve P - gas source A, B - vent S, R - Exhaust
Q:What is valve packing used for?
Valve packing in the valve under the gland to prevent leakage, you can use ordinary asbestos rope and butter emergency replacement

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