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Pneumatic Vacuum Butterfly Valve

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Product Description

Product Attributes
Packaging & Delivery

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Overview

Product Attributes

Brand: Cepai

Packaging & Delivery

Selling Units:: Others

1. Simple structure: The Pneumatic Butterfly Valve consists of a valve body, a valve seat, a valve plate, a pneumatic actuator and connecting parts. It has a compact structure and is easy to install.

2. Adjustable flow: By adjusting the opening of the pneumatic actuator, precise control of the fluid can be achieved and the flow rate can be adjusted.

3. High sealing performance: The valve seat adopts a three-eccentric structure design, which has a small contact area with the valve plate and good sealing performance, which can effectively prevent leakage.

4. Strong corrosion resistance: The valve body and valve plate are usually made of corrosion-resistant materials and can adapt to the working environment of various corrosive media.

5. Rapid opening and closing: Pneumatic actuators have the characteristics of rapid response and can quickly open and close valves, which is suitable for occasions requiring frequent operations.

OFFSET 01

The shaft of stem is located in the back ofseal surface, which is different from thestructure of middle line Butterfly Valve andmakes the seal surface escape from stem. The first offset structure makes the seasurface can contact the seat continuouslycompletely and tightly.

OFFSET 02

Cone-shaped shaft of valve seat isdeviated from the center line of stem axis.which eliminates the friction in the wholeclosed and open process, and to achieve auniform whole seat surround consistentcompression seal effect.

OFFSET 03

The center line is deviated the center line ofpipe, which makes the valve escape fromdisturbance of open and close from valve.At the same, the second offset structurecan make the self pressure seal action toseal tighter than usual.

※ All metal seal system

Sealing ring entirely made of metal material without sandwich which including PTFE, graphite and othernon-metalic materials. The valve seal ring will not be damaged due to high speed medium scoured inthe fully open or partially open state. The valve seat overlay welding stelite and other wear resistancealloy to improve the valve service obviously.

※ Two way reliable seal and small torque of open and close

Two-way metal sealing buttertly valve, by optimizing the desian of import and export sides of the forcethe disc is approximately balanced, two-way valve import and export reached reliable sealingperformance while effectively reducing the valve opening force.

※ Three eccentric all-metal seal systems

Three eccentric structure makes rapidly contact or detach between seal ring and seat during fulopen and close of valve, which there is no friction and the service life of valve is extended greatly.

※ Dynamic Load packing

Valve stem and packing are designed based on micro-leakage (helium detection) and packing gland discsprings have automatic compensation.

※ Fire safe structural design, the explosion-proof stem design

※ Universal mounting bracket (ISO5211 standard mounting platform)

※ Replaceable seat and disc seals and interchangeable

Conventional hard sealing butterfly valve, the valve seat and body in one piece, and our new hardsealing butterfly valve disc and seat ring can be individually removable direct replacement and greatlyreduces valve maintenance costs. (See below comparison)

VALVE BODY

Nominal circulation:	DN50-1300mm
Nominal pressure:	PN6, 10, 16，40，64, ANSI150~600;
Connection mode:	flange type, sandwich type
Body material:	WCB, CF8, CF8M, CF3M, etc
Packing:	PTFE, flexible graphite