Butterfly Wafer Check Valve
butterfly non return valve
wafer type butterfly check valve
wafer-butterfly-check-valve

Butterfly Wafer Check Valve

butterfly wafer check valve is used to automatically open when media flows and then close when fluids flow backward. A check valve is also referred to as a one-way valve, a non-return valve, or a clack valve. Check valves have the ability to pass fluid in a single direction.

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Product Introduction

Product Description

The opening design pressure of a check valve is the minimum pressure required upstream to open or operate. Customers can carefully match application requirements with many different types of valves.

butterfly wafer check valve Characteristics:

1. Short face to face dimension(only 1/4~1/8 of conventional flange check valve);

2. Small volume, light weight (1/4~1/20 of conventional flange check valve);

3. The disc closes rapidly,and has small water hammer pressure;

Can be used for horizontal pipe lines and vertical pipe lines.

4. Convenient utilization;

5. Free channel and small fluid resistance;

6. Excellent sealing;

7. Short stroke of valve disc and small impact force when closing valve;

8. Compact structure, beautiful modeling;

9. Long service life and reliability.

Product Specifications

butterfly wafer check valve is one of many check valve types. When selecting a check valve for process flow control, it is important to be familiar with the specifications. This helps ensure you get the right app for the app.

Stress test according to ISO 5208

Seat Test: 11bar (160psi.)

Body Test: 15bar (220psi.)

ANSI Class 150LB/PN10

Pressure Level

CL 125, CL 150, CL 300, CL 600

PN10, PN16, PN20, PN25, PN40, PN50

5K, 10K, 20K

Thickness: API 594, Manufacturer's Standard.

Design: API 594, Manufacturer's Standard.

Face to face: API 594, API 6D, ISO 5752, EN 558-1

Flange face standard: ASME B16.1, ASME B16.5, ISO 468

Inspection standard: API 598, ISO 5208.

Design Features

The streamlined channel

Swing valve

Oil the hinge pin / through a highe pin

The weight of the bar design

Type of valve	Check valve, etc.
Standard of product	JB, HG, ANSI, DIN, and other non-standard.
Size range	2"~64" (different valve type, different size, please call for details)
Pressure range	Class 150Lb~Class2500Lb (different valve type, different pressure, please call for details)
Material of body	Carbon steel, stainless steel, alloy steel, special steel etc.
Material of rim	According to the medium

More details, pls contact our sales department.

Comparison between Wafer Butterfly Check Valve and Conventional Check Valve

Structure	Wafer butterfly check valve	Conventional check valve
Water hammer pressure	Small. Valve disc has short stroke. With assistance of spring, it can be closed rapidly.	Large. It needs long time to close for its long stroke.
Size & Weight	Short face to face dimension, small volume, light weight convenient for utilization and save cost	Long face to face dimension, large volume and heavy weight
Fluid Resistance	Quite small; fluid drag coefficient: 2.6～0.7 Larger caliber, smaller fluid drag coefficient	Quite small, fluid drag coefficient: 1.3~3. It cannot be opened completely with low pressure which caused large fluid resistance. Larger size, bigger fluid drag coefficient.
Installing	Can be installed horizontally or vertically or vertically, without support for light weight.	Can be installed horizontally and vertically. Support is needed for large size for heavy weight
Pressure	Quite low. The valve can be opened completely under low differential pressure.	High. Valve disc only can be opened completely with large differential pressure
Reliability	Compact and simple structure having long service life and excellent reliability, for low impact fore and water hammer pressure when closing valve.	High impact fore and water hammer pressure cause damage to valve easily.

Contact us today for a quote on our butterfly wafer check valve

Our butterfly wafer check valve model is a general purpose one-way flow valve. Compared with the swing valve, the butterfly wafer check valve has the characteristics of fast vertical and horizontal, air tight, stronger, lighter, smaller, and more reliable than the ordinary swing check valve.

Butterfly wafer check valve maintenance is easier due to the lighter weight and shorter face-to-face dimensions.

Not sure which check valve is best for your application? Contact us today for a custom quote.

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