Butterfly Valve Steel Threaded Directional with Plastic Handle

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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 Steel Threaded Directional with Plastic Handle

Butterfly Valve Steel Threaded Directional with Plastic Handle

 

4.Manual Wafer Butterfly Valve  Specification

 

Butterfly Valve Steel Threaded Directional with Plastic Handle

 

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 is the valve?
valveDefinition of scientific and technical termsValveEnglish Name: valvevalveValve 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.Definition 1: a device used to control flow in a pipe.Subject: electricity (first level discipline); hydraulic construction (two disciplines)Definition 2: equipment installed in a pressure pipe to control the flow of water.Subject: Water Conservancy Science and Technology (first level discipline); hydraulic construction (two disciplines); gate and hoist (three disciplines)Valve historyThe valve is produced with the flow of the pipe. Human valves have been used for nearly 4000 years. In ancient China from the brine well absorb salt brine, once in a bamboo pipe used in cork valve. In the 1800 BC, the ancient Egyptians used similar wooden cocks to control the distribution of water to build large water conservancy projects to prevent the Nile from overflowing. These are the embryonic form of the valve. The extensive use of industrial valves began only after Watt invented the steam engine. In the early twentieth Century, there were valves of cast steel, wrought steel and forged welded joints.
Q:What are the other valves used for the control of dual-use items?
That is to say, your valve needs to be used as dual-use items and technology import and export licenses. Shanghai import and export can find me. We have electronic keys for dual-use items
Q:What courses in the University involve valves?
Principles of Chemical Engineering (basic courses in chemical engineering and Technology)You always have to consider the problem of the valve when you design the pipe
Q:Who knows a door valve heating valve how to open?
The valve has a device resembling a cylinder lock without a dedicated key. However, your home heating is not hot, the valve does not have much relationship. As long as the hole on the valve is parallel to the pipe, the valve is fully open.
Q:How does the valve close?
Rotate it, turn it clockwise. Spherical valve, then hit a cross shaped on the line.Valve (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.
Q:What are the main equipments for valve production?
Press machine, CNC lathe, instrument lathe, drilling machine, machining center, assembly line, pressure test bench, plane, measuring instruments, etc.
Q:How about the valve?
In 1998 began the formal production of valves. As the company expanded in size, in September 2003, changed its name to the British HV VALVES LIMITED (HUDDERSFIELD), referred to as the United kingdom. The design and production of various types of valves, widely used in power, oil, chemical, offshore platforms and other fields, with its excellent quality and service to win the praise of the vast numbers of users.
Q:What valve should be used to test the water valve?
1, ball valve.2, the water test valve can be ball valve, gate valve, stop valve, installed in the fire sprinkler system at each level of the end of the pipe.
Q:Heating pipes, in addition to the living room,
1, whether the pipeline is too long, 2; block 3; distance is 4; water pressure is not enough 5; pipeline laying problems
Q:What does the "XV" valve mean?
XV:X said V is plug valve, said valve body material is chrome molybdenum vanadium steel.

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