PTFE lined Lug Type Butterfly Valve

The lined butterfly valves bi-directional flow is possible at maxmium operating pressure. Since the valve port corresponds to the piping diameter, a high flow capacity is guaranteed.
▪It features ease of maintenance, repeatable on-off, long life durability.
▪The concentric design is commonly used in the power generation, brewing, water and food industries and suitable for both gaseous and liquid service. Typically applied in chemical/petrochemical process, food and beverage, and pulp and paper etc.
▪ Lining material: PTFE, PFA, FEP, PO etc.
▪Connection type: wafer, flange, lug etc.
▪Operation methods: manual, worm gear, electric, pneumatic and hydraulic actuator.
▪The lined butterfly valves are available as per the needs of applications in additional sizes and other than standard material.

Material Specification

No.	Name	Material
1	Body	A216WCB	A351 CF8/A351 CF8M	A351 CF3/A351 CF3M
2	Stem	2Cr13(SS420) SS410 17-4PH
3	Shaft sleeve	SS304
4	O-ring	VITON VITON+FEP VITON+PFA
5	Disc	A216 WCB＋Lining material	CF8/CF8M＋Lining material	CF3 /CF3M＋Lining material
6	Seat	PTFE RPTFE PFA FEP PO
7	Elastomer Backing	Silicone rubber, VITON
8	Body bolt	A193 B7	A320 B8	A193 B8M
9	Bolt	A193 B7	A320 B8	A193 B8M

Technical Specification

Design & Manufacture Standard		HG/T 3704, GB/T 12238		API 6D8
Face-to-face Dimension		HG/T 3704, GB/T 12221		ASMEB16.10
Flange Standard		HG/T 20592, GB/T 9119		ASME B16.5, JIS B2220
Inspection and Test Standard		G B/T 13927, J B/T 9092		API 598
Nominal Diameter(MPa)		DN50~DN1600		2″~64″
Nominal Pressure(MPa)		1	1.5	150Lb
Pressure Test(MPa)	Shell Test	1.5	1.5	1.5
	High Pressure Sealing	1.1	1.1	1 . 1
	Low Pressure Sealing	0.6	0.6	0.6
Temperature Range（℃）		PTFE: 30～180 PFA: 30～200 FEP: 30～150 G×PO: 10～80
Applicable medium		Strong corrosive medium i.e. hydrochloric acid, Nitric acid, Hydrofluoric acid, Liquid chlorine, Sulfuric Acid and Aqua regia etc.

Note: Test standard refers general valve standard, high pressure should be customized for processing.

PTFE lined Lug Type Butterfly Valve

HG/T 20592 (Unit：mm)

DN	NPS	L	PN1.0MPa			PN1.6MPa			D2	H1	H2	A
DN	NPS	L	D	D1	Z-M	D	D1	Z-M	D2	H1	H2	A
50	2	43	165	125	4-M16	165	125	4-M16	90	70	112	96
65	2 1/2	46	185	145	4-M16	185	145	4-M16	110	80	125	112
80	3	46	200	160	8-M16	200	160	8-M16	130	89	135	130
100	4	52	220	180	8-M16	220	180	8-M16	148	105.5	142	150
125	5	56	250	210	8-M16	250	210	8-M16	181	121	165	178
150	6	56	285	240	8-M20	285	240	8-M20	202	145	180	206
200	8	60	340	295	8-M20	340	295	12-M20	263	177	228	260
250	10	68	395	350	12-M20	405	355	12-M24	313	205	278	317
300	12	78	445	400	12-M20	460	410	12-M24	368	235	295	367
350	14	78	505	460	16-M20	520	470	16-M24	415	260	341	466
400	16	102	565	515	16-M24	580	525	16-M27	484	299	390	495
450	18	114	615	565	20-M24	640	585	20-M27	519	320	442	630
500	20	127	670	620	20-M24	715	650	20-M30	569	352.5	470	694

PTFE lined Lug Type Butterfly Valve

ASME B16.5 / JIS B2220 (Unit：mm)

DN	NPS	L	PN1.0MPa			PN1.6MPa			D2	H1	H2	A
DN	NPS	L	D	D1	Z-M	D	D1	Z-M	D2	H1	H2	A
50	2	43	150	120.5	4-M16	155	120	4-M16	90	70	112	96
65	2 1/2	46	180	139.5	4-M16	175	140	4-M16	110	80	125	112
80	3	46	190	152.5	4-M16	185	150	8-M16	130	89	135	130
100	4	52	230	190.5	8-M16	210	175	8-M16	148	105.5	142	150
125	5	56	255	216	8-M20	250	210	8-M20	181	121	165	178
150	6	56	280	241.5	8-M20	280	240	8-M20	202	145	180	206
200	8	60	345	298.5	8-M20	330	290	12- M20	263	177	228	260
250	10	68	405	362	12-M24	400	355	12-M22	313	205	278	317
300	12	78	485	432	12-M24	445	400	16-M22	368	235	295	367
350	14	78	535	476	12-M27	490	445	16-M22	415	260	341	466
400	16	102	595	540	16-M27	560	510	16-M24	484	299	390	495
450	18	114	635	578	16-M30	620	565	20-M24	519	320	442	630
500	20	127	700	635	20-M30	675	620	20-M24	569	352.5	470	694

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