Delivery Time:7-15 working days after received your payment
Certification:CE,TRCU,ISO9001

Pneumatic Piston High Performance Butterfly Valve with Carbon Steel Material

Pneumatic piston high performance on-off butterfly valve

ZSHWB Series of Double Eccentric Butterfly Valve(High performance butterfly valve),both valve disc and sealing ring are designed in special eccentric structure,with characteristics of impact structure, good shut-off performance, repair and replace conveniently and long operation life, so it has both regulating and shut-off functions, which could be widely used to cut off and regulate the processing fluids, such as metallurgy, oil, chemical engineering,electric power,natural gas. engineering, electric power,natural gas.

Feature:

High quality one piece casting which provides consistent uniformity; High performance shutoff and modulating service for standard industrial process lines; Principle of seat sealing :soft seat or metal seat which meet the different application; Both wafer and lugged body styles available

Table  1 Main Performance Parameter                                                  

No.	Item	Pneumatic Type	Electric Type
1	Basic error＜(%)	±2.5	±2.5
2	Backlash＜(%)	2.5	2.0
3	Deadzone＜(%)	2.0	3.0
4	Beginning and ending deviation＜(%)	Beginning	±2.0	±1.5
Ending
5	Rated angle deviation＜(%)	+2.5	+0.5
6	Rated flow parameter deviation＜(%)	+10

Table 2  Rated Flow Parameter

DN(mm)	50	65	80	100	125	150	200	250	300	350
Rated Kv	100	150	200	405	620	1150	2030	3150	4550	6200
Piston type	Single action	83	83	100	100	125	143	160	190	210	240
Torque(Nm)	20	20	50	50	100	200	300	400	600	1000
Double action	63	63	83	83	100	125	143	160	190	210
Torque(Nm)	20	20	50	50	100	200	300	400	600	1000

DN(mm)

400

450

500

600

700