Description

Wafer Butterfly Valve Ductile Iron Cast Iron PN16 Soft Seal For Water

 

Part	Material	ASTM
Body	Cast Iron	A126 ClassB
	Ductile Iron	A536 Gr.65-45-12
Disc	Ductile Iron	A536 Gr.65-45-12
	Bronze	B148 C95400
	Stainless Steel	A351 CF-8
	Stainless Steel	A351 CF-8M
Shaft	Stainless Steel	A276 S410 00
	Stainless Steel	A276 S431 00
Seat Ring	EPDM/NBR/Viton /PTFE
O-Ring	EPDM/NBR
Bushing	Bronze	B62 C83600

 

DN	mm	40	50	65	80	100	125	150	200	250	300	350	400
	inch	1-1/2″	2″	2-1/2″	3″	4″	5″	6″	8″	10″	12″	14“	16”
A		68	80	89	95	114	127	139	175	203	242	267	316
B		110	161	175	181	200	213	226	260	292	337	368	400
C		24	30	30	30	30	30	30	34	34	34	40	52
L		33	42	45	45	51	55	55	60	67	76	76	102
DN	mm	450	500	550	600	650	700	750	800	900	1000	1200
	inch	18″	20″	22″	24″	26″	28″	30″	32″	36″	40″	48″
A		334	370	433	468	484	530	565	602	661	724	869
B		422	480	533	562	540	626	660	666	722	806	938
C		52	64	70	70	70	95	95	95	130	130	150
L		114	127	151	151	172	165	167	188	203	216	276

Wafer Butterfly Valve Performance:

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. Flange Butterfly Valve 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 lift. Standing the test of ten thousands opening and closing opration.
9. Can be used in cutting off and regulating media.