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. 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 

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

2.Soft seat. Replaceable. Increase of service life.

3.Double half shaft without pin.

4.Square and short neck. Easy to stick scutcheon and cost saving.

5.Simple and compact construction. Small in size and light in weight. Easy transportation, installation and maintenance.
6. Quick 90 degrees on-off operation. Minimized operating torque ,energy saving.
7. Excellent sealing performance with no leakage. Long service life.
8.Wide selection of materials ,applicable for various media..
9.Flow curve tending to straight line. Excellent regulation performance.

10Small in size and light in weight, easy instillation and maintenance. It can be mounted wherever needed
Simple and compact construction, quick 90 degrees on-off operation
Minimized operating torque, energy saving
Flow curve teeing to straight line, excellent regulation performance
Long service life, standing the test of tens of thousands opening/closing operations
Bubbles-tight sealing with no leakage under the pressure test
Wide selection of materials, applicable to various mediums

3. Manual Wafer Butterfly Valve Images：

4.Manual Wafer Butterfly Valve  Specification： 

Nominal Pressure:   PN10/PN16

Working Temperature : -45 C centigrade-+200C centigrade

Suitable Mediums :  Fresh water, Sewage, Sea water, Air, Oils, Acids, Alkalis, Salts, etc.

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.