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Pneumatic WCB flange butterfly valve

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Pneumatic thin ball valve has the advantages of short structure length, light weight and convenient installation. The valve seat adopts an elastic sealing structure, which is reliable in sealing and easy to open and close. Suitable for water, steam, oil, oxidizing media. Widely used in petroleum, chemical, air conditioning, fire fighting, water systems, etc.

Parts and Materials

No.	Description	QTY	Meterial	Protection	Optional Meterial
1	Indicator screw	1	Plastic
2	Indicator	1	Plastic
3	Spring clip	1	Stainless Steel
4	Thrust washer	1	Stainless Steel
5	Outside washer	1	Engineering Plastics
6	Body	1	Extruded alluminum ally	Hard anodized etc
7	Bearing(pinoion top)	1	Engineering Plastics
8	Inside washer	1	Engineering Plastics
9	O-ring(pinoion top)	1	NBR		Viton/Silicone
10	Cam	1	Alloy steel
11	Pinion	1	Alloy steel	Nickel plated	Stainless Steel
12	O-ring(pinoion bottom)	1	Engineering Plastics
13	Bearing(pinoion bottom)	1	NBR		Viton/Silicone
14	Plug	2	NBY		Viton/Silicone
15	O-ring(Adjust screw)	2	NBY		Viton/Silicone
16	Adjusting screw washer	2	Stainless Steel
17	Nut(Adjust screw)	2	Stainless Steel
18	Adjust screw	2	Stainless Steel
19	Piston	2	Cast alluminum/casting	Anodized/Zinc galvanized	Stainless Steel
20	Guide(Piston)	2	Engineering Plastics
21	Bearing(Piston)	2	Engineering Plastics
22	O-ring(Piston)	2	NBY		Viton/Silicone
23	Spring	0-12	Sping steel	Dip coating
24	O-ring(End cap)	2	NBY		Viton/Silicone
25	End cap	2	Cast alluminum	Powder polyster painted etc
26	Cap screw	8	Stainless Steel
27	Stop screw	2	Stainless Steel
28	Nut(Stop screw)	2	Stainless Steel

Picture show

Technical details

Size:	DN50-DN500	Pneumatic Actuator:	Double acting&Single acting
Temperature:	≤120℃	Limit switch:	ON-OFF (Two-way& Three-way)
Medium:	Water,Natural gas, Alcohols, Salts, Alkalis, Oil,Air, etc.	Solenoid valve:	AC220V,AC24V,DC24V,DC12V AC380V
Working Pressure:	PN16	Filters:	0.1-1.6（mpa）
Connections:	flange

Main parts and materials

Dimensions

Size		L	L1	L2	H	D	D1(PCD/BCD)			D2	C	f	n-ød
mm	in	L	L1	L2	H	D	DIN	JIS	ANSI	D2	C	f	n-ød
15	1/2"	108	141	71	204	89	65	70	60	35	10	1.6	4-ø14
20	3/4"	117	141	71	209	99	75	75	70	43	10.5	1.6	4-ø14
25	1"	127	159	83	214	108	85	90	80	51	11.5	1.6	4-ø14
32	1-1/4"	140	211	95	257	117	100	100	89	64	13	1.6	4-ø14
40	1-1/2"	165	248	107	274	127	110	105	98	73	14.5	1.6	4-ø14
50	2"	178	249	107	290	152	125	120	121	92	16	1.6	4-ø18
65	2-1/2"	190	269	123	310	178	145	140	140	105	18	1.6	4-ø18
80	3"	203	269	123	346	191	160	150	152	127	19.5	1.6	8-ø18
100	4"	229	345	152	378	229	180	175	190	157	24	1.6	8-ø18
125	5"	356	409	172	425	254	210	210	216	186	24	1.6	8-ø22
150	6"	394	550	215	468	279	240	240	241	216	25.5	1.6	8-ø22
200	8"	457	633	262	583	343	295	290	298	270	25.5	1.6	8-ø22