Fluorine lined wafer butterfly valve Advantages & Types

PARAMETER

ADVANTAGE

A Fluorine lined wafer butterfly valve is a compact valve designed to clamp between two flanges in a pipeline, featuring four alignment holes. It provides a strong seal with a rubber or EPDM seat. Unlike lug-style valves, it cannot serve as an end-of-line valve and requires full line shutdown for maintenance.

Main parts and materials

Name/Material	WCB	CF8	CF3	CF8M	CF3M
Body	WCB	CF8	CF3	CF8M	CF3M
Disc	WCB	CF8	CF3	CF8M	CF3M
Stem	WCB	CF8	CF3	CF8M	CF3M
Lined	FEP / PFA / PO / PTFE
Seat	PTFE / RPTFE
Bolt/Nut	B7/2H	B8/8	B8/8	B8M/8M	B8M/8M

Technical Specification

Design&Manufacture Standard		GB/T12238		API 6D
FTF Dimension Standard		GB/T12221		ASME B16.10
Flange standard		HG/T20592, GB/T9119		ASME B16.5, JIS B2220
Inspection & Test Standard		HG/T13927, JB/T9092		API 598
Normal Diameter		DN40~DN1200		1-1/2”~48”
Normal Pressure		1.0MPa	1.6MPa	150LB
Test pressure	Shell Test	1.5MPa	1.5MPa	1.5MPa
	High Pressure Test	1.1MPa	1.1MPa	1.1MPa
	Low Pressure Test	0.6MPa	0.6MPa	0.6MPa
Temperature Range		FEP:-29℃~120℃, PFA:-29℃~180℃, PTFE:-29℃~150℃
Applicable Medium		Strong corrosion medium: Hydrochloric acid, Nitric acid, Hydrofluoric acid, Liquid chlorine, Sulfuric acid and Aqua regia etc.

The main connection size

DN (mm	PNS (Inch)	L	D	D1	D2	f	b	Z-Φd	Do	H
DN (mm	PNS (Inch)	PN1.0MPa
40	1-1/2	33	150	110	85	3	19	4-18	150	140
50	2	43	165	125	100	3	21	4-18	150	140
65	2-1/2	46	185	145	120	3	21	4-18	150	150
80	3	46	200	160	135	3	21	8-18	150	165
100	4	52	220	180	155	3	23	8-18	200	180
125	5	56	250	210	185	3	24	8-18	200	200
150	6	56	285	240	210	3	26	8-23	280	220
200	8	60	340	295	265	3	26	82-23	280	270
250	10	68	395	350	320	4	28	12-23	200	320
300	12	78	445	400	370	4	28	12-23	240	330
350	14	78	505	460	430	4	28	16-23	240	385
400	16	102	565	515	480	4	28	16-26	280	430
450	18	114	615	565	530	4	30	20-26	280	480
500	20	127	670	620	580	4	30	20-26	320	540
600	24	154	780	725	680	5	34	20-30	320	610
700	28	165	895	840	795	5	36	24-30	360	650
800	32	190	1015	950	900	5	38	24-33	360	710
900	36	203	1115	1050	1000	5	40	28-33	380	780
1000	40	216	1230	1160	1115	5	42	28-36	400	900
1200	48	254	1455	1380	1330	5	44	32-39	400	1050

DN (mm	PNS (Inch)	L	D	D1	D2	f	b	Z-Φd	Do	H
DN (mm	PNS (Inch)	PN1.6MPa
40	1-1/2	33	150	110	85	3	19	4-18	150	140
50	2	43	165	125	100	3	21	4-18	150	140
65	2-1/2	46	185	145	120	3	21	4-18	150	150
80	3	46	200	160	135	3	21	8-18	150	165
100	4	52	220	180	155	3	23	8-18	200	180
125	5	56	250	210	185	3	24	8-18	200	200
150	6	56	285	240	210	3	26	8-23	280	220
200	8	60	340	295	265	3	26	8-23	280	270
250	10	68	405	355	320	4	28	12-27	200	320
300	12	78	460	410	370	4	30	12-27	240	330
350	14	78	520	470	430	4	32	16-27	240	385
400	16	102	580	525	480	4	34	16-30	280	430
450	18	114	640	585	550	4	42	20-30	280	480
500	20	127	715	650	610	4	42	20-33	320	540
600	24	154	840	770	720	5	48	20-36	320	610
700	28	165	910	840	759	5	48	24-36	360	650
800	32	190	1025	950	900	5	48	24-39	360	710
900	36	203	1125	1050	1000	5	50	28-39	380	780
1000	40	216	1255	1170	1110	5	50	28-42	400	900
1200	48	254	1485	1390	1330	5	50	32-48	400	1050

The design and manufacture comply with the basic structure of Chinese national standards (the butterfly shaft coincides with the center of the valve body/seat)

A.D71F4 fully lined valve body, the whole village/butterfly plate, the whole village layer/lining layer, the butterfly plate and the butterfly plate shaft double D cooperate with

B.D71F46 fully lined valve body, full lining/plate, full lining/lining and butterfly plate into one

C.D71F4(46)/P semi-lined valve body is all solid/the butterfly plate is stainless steel/the butterfly plate is matched with the doubled of the butterfly plate shaft.

Compact and Lightweight:

Their slim design saves space and makes them easy to install in systems with tight space constraints.

Cost-Effective:

Wafer butterfly valves are economical due to their simple design and lower material requirements compared to other valve types.

Quick Installation:

They fit easily between flanges, without requiring additional bolts or fasteners, simplifying the installation process.

Low Maintenance:

With fewer moving parts, they are easy to maintain and have a longer service life, reducing operational costs.

Reliable Sealing:

Wafer butterfly valves offer effective sealing, preventing backflow and ensuring system integrity across various applications.

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