Product Details

Product Description

Brief Introduction:

Butterfly valve is mainly consisted of body, stem, disc, seat and driver(lever, gearbox, pneumatic and electric Actuator) and so on. On off and controlling flow of valve are made by turning stem and disc together.

------------------------------------Structure chart of the Valve----------------------------------

TWS ED soft sleeve seat Ductile iron Manual Butterfly Valve

Item	Name of the Component	Function
1	Driving Device Flange	Available with handles, gear operators, electric or pneumatic actuators.
2	Body	Available in wafer and full lug style
3	Bushing	Reduce driving torque, support stem, seperated with body, reduce wear of stem.
4	Side seal	Without flange gasket
5	Strong pression key	Applicable to handle and other control device installation.
6	O-ring	Primary and secondary stem seal
7	Taper pin	Precision taper pins connect stem with disc, ensure positive vibration proof, easily field.
8	Integral stem design	ensures the dependsable and positive disc control.
9	Disc	High precision disc external profile, reach the requirement of bubble-tight, small start and stop torque, longer usage life of seat.

Characters of Product:

1. Small in size&light in weight and easy maintenance. It can be mounted wherever needed.

2. Simple, compact structure, quick 90 degree on-off operation

3. Disc has two-way bearing, perfect seal, without leakage under the pressure test.

4. Flow curve tending to straight-line. Excellent regulation performance.

5. Various kinds of materials, applicable to different media.

6. Strong wash and brush resistance, and can fit to bad working condition.

7. Center plate structure, small torque of open and close.

8. Long service life. Standing the test of ten thousands opening and closing opration.

9. Can be used in cutting off and regulating media.

Detail Specification:

Size	DN40-DN1200
End flange	ANSI B 16.1, EN 1092, AS 2129
Face to face	ANSI B 16.10; EN 558-1 Series 20
Top flange	ISO 5211
Normal Pressure	DN40-DN600 PN1.0/1.6MPa (150/200PSI) DN700-DN1200 PN1.0MPa (150PSI)
Body	CI/DI/WCB/ALB/CF8/CF8M
Disc	DI/ALB/Rubber lined Disc/ 1.2501/CF8M/1.4529/CF8/Hastelloy Alloy/Monel
Stem:	416/304/316/431/17-4PH
Seat	NR/Hypalon/EPDM/Neoprene/NBR/Wear-Resistant EPDM/Viton/Silicon/Heat-Resistant EPDM/White NBR/White EPDM/EPDM (NSF)/PTFE
Suitable Temperature	-40c~80c
Apply	Fresh water, sewage, sea water, air, vapor, food, medicine, oils, alkalis, salt etc.

Testing

1. Before produced, every material will be confirmed and checked strictly by our QC.

2. Every products has to be test before packing

3. Before delievery, the products can be test by our QC or the thrid-party detection instituation ordered by our client.

Packaging & Shipping

1.One piece wafer butterfly valve in one poly bag;
2.Some pieces butterfly valves in one wooden carton;
3.Then container.

Ways of shipping: by air, by sea, by express.

Certifications

Famous Brand in China. CE ISO WARS

Application

* Water works and water resource projects *Enviroment protection * Public Facilities * Power and public Utilities

*Building industry *Petroleum/chemical * Steel,Metallurgy *Paper making industry * Food, Beverage


Wafer type butterfly valve	Lug type butterfly valve	Backflow preventer	Gate valve