Fluorine Lined Gate Valve

Product Overview

Fluorine Lined gate valve is the most common open-close valve, using the wedged sealing disc placed on the two sides to pass through or cut the medium in the pipeline. It can't be used as an adjusting flow device by slight opening, or the sealing face will be eroded and destroyed soon by high-speed medium.

Product Features

• Wedged gate valve has two kinds of shapes: flat and round. GB valves are round shape, ANSI lb class valve and DN ≤ 300 are flat shape, DN ≤ 400 are round shape. The cavity of body and bonnet and the outer face of disc and stem which contact the medium directly are coated with FEP (F46) or PCTFE (F3).

• The sealing pair is of FEP (F46) / PCTFE (F3), with small friction and low opening and closing torque.

• The packing with graphite has good sealing performance and convenient maintenance.

• The elastic wedge can compensate the wedge deviation between wedge sealing face and seat sealing face, providing good sealing performance.

• The medium can access the gate valve through any direction, suitable as an opening and closing device for pipelines where the direction of medium may change.

Executive standard

Design and manufacture	GB 12234 / API 600
Face to face	GB 12221 / ANSI B16.10
Flange dimension	JB78/JB79 / ANSI B16.5 / GB9113.5 (PN4.0) / Or according to contract
Pressure test	GB/T 13927 / API 598
Symbol	GB 12220 / API 600
Supply	GB/T 12252 / API 600

Main Parts Material Specification

No.	Part name	Grey cast iron (Z)	Carbon steel (C)	Stainless steel (P)	Stainless steel (R)	Low carbon SS (PL)	Low carbon SS (RL)
1	Body, Bonnet, Wedge	HT250	WCB	CF8	CF8M	CF3	CF3M
2	Lining / Seat	-	PCTFE, PVDF, FEP, PFA, PO (common for all materials)
3	Stem	1Cr13	2Cr13	1Cr18Ni9	1Cr18Ni12Mo2Ti	00Cr18Ni10	00Cr17Ni14Mo2
4	Packing, Gasket	-	Flexible graphite, PTFE (common for all materials)
5	Middle flange bolt	35	35CrMoA	1Cr17Ni2	1Cr17Ni2	1Cr18Ni9	1Cr18Ni9
6	Middle flange nut	45	45	0Cr18Ni9	0Cr18Ni9	0Cr18Ni9	0Cr18Ni9
7	Yoke	-	HT250 / WCB / CF8 (shared)
8	Stem nut	-	ZCuAl10Fe3	-	-	A439 D2	-
9	Hand wheel	-	KT330-08	-	-	QT400-15	-

Fluorine Lined Gate Valve

Basic Type

Operation Type	Model
Manually	Z41F₃ / Z41F₄₆
Gear operated	Z441F₃
Pneumatic	Z641F₃ / Z641F₄₆
Electric	Z941F₃ / Z941F₄₆

Main Dimension

PN1.6(MPa)

DN (mm)	NPS (in)	L	D	D1	D2	f	b	Z-Φd	Do	H1	H2	W (kg)
15	1/2	140	95	65	45	2	14	4-Φ14	120	110	130	7
20	3/4	152	105	75	55	2	16	4-Φ14	120	120	140	8
25	1	165	115	85	65	2	16	4-Φ14	120	135	160	9
32	1-1/4	178	135	100	78	2	18	4-Φ18	160	160	190	13
40	1-1/2	240	145	110	85	3	18	4-Φ18	160	170	220	25
50	2	250	160	125	100	3	20	4-Φ18	160	360	410	32
65	2-1/2	270	180	145	120	3	20	4-Φ18	180	380	440	38
80	3	280	195	160	135	3	22	8-Φ18	180	440	520	50
100	4	300	215	180	155	3	24	8-Φ18	240	500	600	68
125	5	325	245	210	185	3	26	8-Φ18	240	615	740	125
150	6	350	280	240	210	3	28	8-Φ23	280	680	830	170
200	8	400	335	295	265	3	30	12-Φ23	280	820	1020	210
250	10	450	405	355	320	3	32	12-Φ25	320	980	1230	260
300	12	500	460	410	375	4	34	12-Φ25	320	1150	1450	480
350	14	550	520	470	435	4	38	16-Φ25	400	1285	1635	620
400	16	600	580	525	485	4	40	16-Φ30	400	1455	1855	805
450	18	650	640	585	545	4	44	20-Φ30	500	1545	1990	880
500	20	700	705	650	608	4	46	20-Φ34	500	1735	2235	920

PN2.5(MPa)

DN (mm)	NPS (in)	L	D	D1	D2	f	b	Z-Φd	Do	H1	H2	W (kg)
15	1/2	140	95	65	45	2	16	4-Φ14	120	110	130	8
20	3/4	152	105	75	55	2	16	4-Φ14	120	120	140	9
25	1	165	115	85	65	2	16	4-Φ14	160	135	160	10
32	1-1/4	178	135	100	78	2	18	4-Φ18	160	160	190	14
40	1-1/2	240	145	110	85	3	18	4-Φ18	180	170	220	28
50	2	250	160	125	100	3	20	4-Φ18	180	360	410	36
65	2-1/2	270	180	145	120	3	22	8-Φ18	240	380	440	45
80	3	280	195	160	135	3	22	8-Φ18	240	440	520	58
100	4	300	230	190	160	3	24	8-Φ23	280	500	600	76
125	5	325	270	220	188	3	28	8-Φ25	280	615	740	143
150	6	350	300	250	218	3	30	8-Φ25	320	680	830	178
200	8	400	360	310	278	3	34	12-Φ25	320	820	1020	243
250	10	450	425	370	332	3	36	12-Φ30	400	980	1230	275
300	12	500	485	430	390	4	40	16-Φ30	400	1150	1450	520

PN4.0(MPa)

DN (mm)	NPS (in)	L	D	D1	D2	f	b	Z-Φd	Do	H1	H2	W (kg)
15	1/2	108	89	60.5	35	2	12	4-Φ15	120	110	130	8
20	3/4	117	98	70	43	2	12	4-Φ15	120	120	140	9
25	1	127	108	79.5	51	2	12	4-Φ15	160	135	160	10
32	1-1/4	140	117	89	64	2	13	4-Φ15	160	160	190	13
40	1-1/2	165	127	98.5	73	2	15	4-Φ15	180	170	220	26
50	2	178	152	120.5	92	2	16	4-Φ19	180	360	410	34
65	2-1/2	190	178	139.5	105	2	18	4-Φ19	240	380	440	42
80	3	203	190	152.5	127	2	19	4-Φ19	240	440	520	54
100	4	229	229	190.5	157	2	24	8-Φ19	280	500	600	72
125	5	254	254	216	186	2	24	8-Φ22	280	615	740	132
150	6	267	279	241.5	216	2	26	8-Φ22	320	680	830	175
200	8	292	343	298.5	270	2	29	8-Φ22	320	820	1020	220
250	10	330	406	362	324	2	31	12-Φ25	400	980	1230	265
300	12	356	483	432	381	2	32	12-Φ25	400	1150	1450	490
350	14	381	533	476	413	2	35	12-Φ29	450	1285	1635	620
400	16	406	597	540	470	2	37	16-Φ29	450	1455	1855	810
450	18	432	635	578	533	2	40	16-Φ32	500	1545	1990	890
500	20	457	699	635	584	2	43	20-Φ32	500	1735	2235	940
600	24	508	813	749.5	692	2	48	20-Φ35	500	1850	2450	980