Anti Corrosive PTFE Lined Butterfly Valve (PTFE / PFA / FEP / PO)

• Model NO.: GLTD371
• Work Pressure: Pn1.0MPa, 1.6MPa
• Working Temperature: -30 ~200ºC
• Material of Seal Surface: Anit Corrosive Soft Sealing
• Valve Body: Casting
• Application: Industrial Usage
• Transport Package: Bubble Plastic Paper + Plywood Case
• Specification: DN50~DN1600
• Trademark: KARFAR / OEM

Product Description

Anti Corrosive PTFE Lined Butterfly Valve
MODEL: GLTD371


▪ 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 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 is outstanding for ease of maintenance and long service life.
▪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. 

Material Specification

No.	Name	Material
1	Body	A216WCB	A351 CF8/A351 CF8M
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
6	Seat	PTFE RPTFE PFA FEP PO
7	Elastomer Backing	Silicone rubber, VITON
8	Body bolt	A193 B7	A320 B8
9	Bolt	A193 B7	A320 B8

Technical Specification

Design & Manufacture Standard		HG/T 3704, GB/T 12237		API 6D
Face-to-face Dimension		HG/T 3704, GB/T 12221		ASME B16.10
Flange Standard		HG/T 20592, GB/T 9119		ASME B16.5, JIS B2220
Inspection and Test Standard		GB/T 13927, JB/T 9092		API 598
Nominal Diameter(MPa)		1.0	1.6	CLASS150
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(ºC)		PFA -30~200                FEP: -30~150                  GXPO: -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.




Structure diameter:


ASME B16.5 / JIS B2220 (Unit:mm)

DN	NPS	L	PN1.0MPa			PN1.6MPa			D2	H1	H2	A
			D	D1	Z-M	D	D1	Z-M
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

 

HG/T 20592 (Unit:mm)

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