Description

Lug style pedm seat for butterfly valve handwheel

 

 

DN	mm	40	50	65	80	100	125	150	200	250	300
	inch	1-1/2″	2″	2-1/2″	3″	4″	5″	6″	8″	10″	12″
A		68	80	89	95	114	127	139	175	203	242
B		110	260	275	292	337	368	375	400	422	480
C		24	30	30	30	30	30	30	34	34	34
L		33	60	67	67	73	76	102	102	114	127
DN	mm	350	400	450	500	550	600	650	700	800	1000
	inch	14″	16″	18″	20″	22″	24″	26″	28″	32″	40″
A		267	316	334	370	433	468	484	530	675	810
B		368	400	422	480	533	562	540	626	602	724
C		40	52	52	64	70	70	70	95	95	130
L		76	102	114	127	151	151	172	165	190	216

lug style butterfly valve material list

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

 

lug style 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.