Wafer Type Butterfly Valve

Wafer butterfly valve has simple structure, small volume, light weight, and has good fluid control characteristics. Its disc is installed in the diameter direction of pipeline, so the valve can be quickly opened and closed by rotating its disc 90 degrees.

The wafer body is easy to be connected between two pipeline flange with flange bolts, but it cannot be used at end in a fluid system.

Wafer Type Butterfly Valve Dimensions

Size		A	B	C	D	H	J	K	L	T	S	W
inch	mm	A	B	C	D	H	J	K	L	T	S	W
1/1%	25/32	50	110	10	12.7	65	50	7	30	17	9	10
1%	40	60	130	10	12.7	65	50	7	33	27	9	10
2	50	72	135	12	12.7	65	50	7	43	30	11	10
2^	65	82	150	19	12.7	90	70	9.5	46	49	14	10
3	80	93	160	19	12.7	90	70	9.5	46	68	14	10
4	100	106	180	19	15.9	90	70	9.5	52	88	14	12
5	125	120	195	19	19.1	90	70	9.5	56	113	14	14
6	150	135	211	19	19.1	90	70	9.5	56	142	14	14
8	200	172	238	19	22.2	125	102	11.5	60	193	17	17
10	250	202	279	24	28.6	150	125	14	68	243	22	22
12	300	239	314	24	31.8	150	125	14	78	292	22	24
14	350	257	330	38	31.8	150	125	14	78	329	22	24
16	400	292	365	51	33.3	210	165	22	102	375	27	27
18	450	359	400	51	38.1	210	165	22	114	426	27	27
20	500	397	440	64	41.3	210	165	22	127	477	36	32
24	600	467	525	70	50.8	210	165	22	154	572	36	36

Wafer Type Butterfly Valves VS Lug Type

1. Material (Similarity):

The valve (Lug Type and Wafer Type) is made of cast iron, ductile iron, cast steel as well as stainless steel.

2. Design Pressure (Similarity):

The valve (Lug Type and Wafer Type) has low pressure, DIN PN10/16, ASTM CL125/CL150.

3. Range of Applications:

Both Lug and wafer are used in a number of applications for industrial sectors that include food processing, pharmaceutical, chemical, oil, gas, water as well as wastewater management.

4. Installation (Similarity and Difference):

The wafer valve is designed to be clamped between two flanges. And the Lug valve can be installed on the piping by threaded bolts or flanges.

5. Action:

Both Lug and water valves can adjust (1/4, 1/2) and close the flow. And this two kinds can be installed with electrical actuator for more convenience.

6. Alternative:

This wafer type can be replaced by lug type in use, but the opposite is not true.

Wafer Type Butterfly Valve FAQs

Q 1. How Do You Install a Wafer Type Butterfly Valve?

Putting the butterfly valve in the middle of the two flanges which fully welded to both ends of the pipe and locking the butterfly valve through the pipe flange with double head bolts, it should always be installed concentrically between flanges, position disk in the closed position during installation to prevent damage of disc sealing edge, Try the disc by moving it from the closed position to open and back to ensure it moves flexibly

Q 2. How Does a Wafer Type Butterfly Valve Work?

Butterfly valve is a kind of valve using valve handle to open and close, the handle connects the stem ,the round disc of butterfly valve connects the stem, which rotates to drive the valve plate to open and close and regulate fluid

Q 3. What is the Construction of the Wafer Type Butterfly Valve?

The constructions of the wafer type butterfly valve mainly are valve body, valve disc, valve stem and valve seat and its driving device