Butterfly Valve Made in China on Hot Sale with High Quality

Ref Price:
$50.00 - 2,500.00 / pc
Loading Port:
Tianjin
Payment Terms:
TT or LC
Min Order Qty:
100 pc
Supply Capability:
10000 pc/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

 

Butterfly Valve  Made in China on  Hot Sale with High Quality

Butterfly Valve  Made in China on  Hot Sale with High Quality

 

4.Manual Wafer Butterfly Valve  Specification

 

 

Butterfly Valve  Made in China on  Hot Sale with High Quality 

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:What does the PN on the valve mean?
1, mark "ON25" and "PN16" respectively what does that mean? 2, the valve above has an outer six corners, so PN16 refers to the nominal pressure of 16 kg valve. Valves on the fittings are standard parts, special
Q:Why use the pump outlet valve to adjust the flow rate?
Adjust the speed of the water pump to adjust the flow of the most appropriate, such as liquid or variable frequency control, with the switch pump outlet door to adjust the flow rate is the most uneconomical.
Q:What does "TD671F" mean?
TD671F is pneumatic clamp type soft sealing butterfly valveValve (Famen) is a control component in the fluid delivery system. It has the functions of closing, adjusting, guiding, preventing reverse flow, stabilizing voltage, shunting or overflow and releasing pressure.Valves used in fluid control systems, from the simplest stop valve to a very complex automatic control system used in a variety of valves, a wide range of varieties and specifications. Valves can be used to control air, water, steam, a variety of corrosive media, mud, oil, liquid metal and radioactive media and other types of fluid flow. The valve according to the material is divided into cast iron valves, cast steel valves, stainless steel valves (201, 304, 316), chrome molybdenum steel, chromium molybdenum vanadium steel valves, valve, dual phase steel valves, plastic valves, non-standard customized valve material etc..
Q:What are the technical requirements of valves, such as "Z15W-25T"?
Z = gate valve1 = internal thread connection5 = dark rod type (structural form)W = body seal payments25 = 2.5MPa (nominal pressure)T = copper (body material)Landlord can refer to JB/T 308-2004 valve model preparation methods
Q:What are the valves at home?
Valve used in the family is commonly used, the following are several:On the water pipe are: total table of the ball valve (32mm), in charge of the (25mm), as well as for the toilet, washbasin, water heater angle valve (20mm).Other commonly used gas pipelines, valves, pressure reducing valves and the like.
Q:Where is the hydrant main valve?
The fire hydrant generally has two sources, one is from the roof water tank, a water pump is from the housing, maintenance, should close the fire hydrant located on the riser inlet valve tube under the ring, generally located in the top and bottom, and then discharge, when the valve cannot be closed, the proposed closure of replenishment valve and the pressure stabilizing device of water tank, fire pump in manual state, drainage after maintenance. Watch out for fire.
Q:What are the types of valves?
1.2.1 sort by pressurex09 (1) vacuum valve operating pressure below standard atmospheric pressure valvex09 (2) low pressure valve nominal pressure PN is less than or equal to 1.6 MPa valve.x09 (3) medium pressure valve nominal pressure PN, 2.5, 4, 6.4 MPa valvex09 (4) high pressure valve nominal pressure PN 10.0~80.0 MPa valvex09 (5) high pressure valve nominal pressure PN = 100 MPa valve.1.2.2 classification by dielectric temperaturex09 (1) high temperature valve for medium working temperature T > 450 degrees of the valvex09 (2) medium temperature valve for medium temperature 120 degrees valvex09 (3) at room temperature valve for medium temperature -40 = t = 120 DEG C of the valve.x09 (4) low temperature valve for medium temperature -100 = t = -40 C of the valve.x09 (5) ultra low temperature valve for medium working temperature T < -100 DEG C valve
Q:Yongde jiekelong valves and valves of the good faith
Interior decoration is the most cost-effective brand, switches, sockets, Zhejiang, Yongkang, France and Germany electrical appliances. Plumbing valve, Zhejiang, Yongde, Yongkang letter. Bathroom accessories Fujian Nanan Jomoo bathroom.
Q:What does LBC mean in a valve?
LB and 800 are together. 800LB means 800 pounds of stress, and P should be PRESSURE.
Q:What are the valve types H, F, and Y? What are the meanings of these 3 letters?
Please refer to "JB/T308-2004 valve model preparation method"Sealing surface material codeH Cr13 stainless steelF fluoroplasticY cemented carbide

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