Fluorine-Lined Plug Valve

Size Range: DN15–DN400
Pressure Range: PN0.6Mpa–PN4.0Mpa
End Connection: Flanged
Material: Carbon Steel with PTFE/FEP Lining
Seals: PTFE/FEP
Valves Design: Fluorine-Lined Plug Valve with Non-Lubricated Design
Face to Face: ISO 5752 / DIN 3202 F1
End Connection: ASME B16.5, EN 1092-1
Testing & Inspection: API 598, ISO 5208
Suitable Medium: Highly Corrosive Fluids, Acids, Alkalines

Product Overview

The Fluorine-Lined Plug Valve is an advanced flow control solution, specifically designed for systems handling corrosive chemicals. With a fluorine lining and a non-lubricated design, this valve provides exceptional chemical resistance, ensuring long-term reliability and optimal performance in challenging environments.

Product Features

The plug is lined with F4 or F46. Different lining materials are selected based on the medium and operating temperature. It provides excellent lubrication and long service life.
The plug valve features a double-channel sealing design at the outlet end. During the closing process, the sealing surface compression ratio changes with the pressure difference, eventually achieving full sealing or full release. This results in superior sealing performance and reliable shut-off.
The double-channel design ensures the PTFE sealing surface remains under stable pressure, preventing warping or deformation caused by pressure imbalance. It also compensates for minute wear between sealing surfaces, significantly extending service life.
During the closing process, the mechanical wedge locking design makes the torque required nearly zero, similar to free flow pressure.

◇ Main Parts and Materials Table

Component Name	C	P	R	PL	RL
Valve Body & Cover	WCB	CF8	CF8M	CF3	CF3M
Lining & Plug	PTFE(F4), PCTFE(F3), PVDF(F2), FEP(F46), PFA, PPL
Plug Core	WCB 35 (Forged), MONEL Alloy, CF8, CF8M, CF3, CF3M
Packing Gland	1Cr18, 1Cr18Ni9, 00Cr18Ni10
Adjustment Gasket	RPTFE (Enhanced F3), PFA (Enhanced Four-Way Fluorine Resin)
Stud Bolts & Nuts	35CrMo45, 1Cr17Ni2, 00Cr18Ni9, 1Cr17Ni2/00Cr18Ni9
O-Ring	FPM (Viton), SI (Silicone)

Specification Parameters

Dimension Table – PN0.6MPa

DN	L	D	D1	D2	b	f	z–Φd	H	W
15	130	80	55	40	12	2	4–Φ12	80	120
20	130	90	65	50	14	2	4–Φ12	90	120
25	140	100	75	60	14	2	4–Φ12	100	160
32	165	120	90	70	16	2	4–Φ14	110	160
40	165	130	100	80	16	3	4–Φ14	120	200
50	203	140	110	90	16	3	4–Φ14	135	250
65	222	160	130	110	16	3	4–Φ14	145	250
80	241	185	150	125	18	3	4–Φ18	180	300
100	305	205	170	145	18	3	4–Φ18	195	300
125	356	235	200	175	20	3	8–Φ18	210	350
150	394	260	225	200	20	3	8–Φ18	450	200
200	457	315	280	255	22	3	8–Φ18	490	200
250	533	370	335	310	24	3	12–Φ18	550	240
300	610	435	395	362	24	4	12–Φ23	600	280
350	686	485	445	415	26	4	12–Φ23	675	280
400	762	535	495	462	28	4	16–Φ23	780	320
450	864	590	550	518	28	4	16–Φ23	820	360
500	914	640	600	568	30	4	16–Φ23	910	360

Dimension Table – PN1.0MPa

DN	L	D	D1	D2	b	f	z–Φd	H	W
15	130	95	65	45	14	2	4–Φ14	80	120
20	130	105	75	55	16	2	4–Φ14	90	120
25	140	115	85	65	16	2	4–Φ14	100	160
32	165	135	100	78	18	2	4–Φ18	110	160
40	165	145	110	85	18	3	4–Φ18	120	200
50	203	160	125	100	20	3	4–Φ18	135	200
65	222	180	145	120	20	3	4–Φ18	145	250
80	241	195	160	135	22	3	8–Φ18	180	250
100	305	215	180	155	22	3	8–Φ23	195	300
125	356	245	210	185	24	3	8–Φ23	210	350
150	394	280	240	210	24	3	8–Φ23	450	200
200	457	335	295	265	26	3	8–Φ23	490	240
250	533	390	350	320	28	3	12–Φ23	550	280
300	610	440	400	368	28	4	12–Φ23	600	320
350	686	500	460	428	30	4	16–Φ23	675	320
400	762	565	515	482	32	4	16–Φ25	780	360

Dimension Table – PN1.6MPa

DN	L	D	D1	D2	b	f	z–Φd	H	W
15	130	95	65	45	14	2	4–Φ14	80	120
20	130	105	75	55	16	2	4–Φ14	90	120
25	140	115	85	65	16	2	4–Φ14	100	160
32	165	135	100	78	18	2	4–Φ18	110	160
40	165	145	110	85	18	3	4–Φ18	120	200
50	203	160	125	100	20	3	4–Φ18	135	250
65	222	180	145	120	22	3	4–Φ18	145	250
80	241	195	160	135	22	3	8–Φ18	180	300
100	305	215	180	155	24	3	8–Φ18	195	300
125	356	245	210	185	26	3	8–Φ18	210	350
150	394	280	240	210	28	3	8–Φ23	450	200
200	457	335	295	265	30	3	12–Φ23	490	200
250	533	405	355	320	32	3	12–Φ25	550	240
300	610	460	410	375	34	4	12–Φ25	600	280
350	686	520	470	435	38	4	16–Φ25	675	320
400	762	580	525	485	40	4	16–Φ30	780	360

Dimension Table – PN2.5MPa

DN	L	D	D1	D2	b	f	z–Φd	H	W
15	130	95	65	45	16	2	4–Φ14	85	120
20	130	105	75	55	16	2	4–Φ14	95	140
25	140	115	85	65	16	2	4–Φ14	105	140
32	165	135	100	78	18	2	4–Φ18	115	200
40	165	145	110	85	18	3	4–Φ18	125	250
50	203	160	125	100	20	3	4–Φ18	140	250
65	222	180	145	120	22	3	8–Φ18	150	300
80	241	195	160	135	24	3	8–Φ23	185	300
100	305	230	190	160	24	3	8–Φ23	200	350
125	356	270	220	188	28	3	8–Φ25	215	400
150	394	300	250	218	30	3	8–Φ25	455	200
200	457	360	310	278	34	3	12–Φ25	495	240
250	533	425	370	332	36	3	12–Φ30	555	280
300	610	485	430	390	40	4	16–Φ30	605	320
350	686	550	490	448	44	4	16–Φ34	680	320

Dimension Table – PN4.0MPa

DN	L	D	D1	D2	b	f	z–Φd	H	W
15	140	95	65	45	14	2	4–Φ14	85	140
20	152	105	75	55	16	2	4–Φ14	95	140
25	165	115	85	65	16	2	4–Φ14	105	200
32	178	135	100	78	18	2	4–Φ18	125	250
40	190	145	110	85	18	3	4–Φ18	125	250
50	216	160	125	100	20	3	4–Φ18	140	300
65	241	180	145	120	22	3	8–Φ18	150	300
80	283	195	160	135	24	3	8–Φ23	185	300
100	305	230	190	160	24	3	8–Φ23	200	350
125	381	270	220	188	26	3	8–Φ25	215	400
150	403	300	250	218	28	3	8–Φ25	455	200
200	419	375	320	282	34	3	12–Φ30	495	240
250	457	445	385	345	38	3	12–Φ34	555	280
300	502	510	450	408	42	4	16–Φ34	605	320
350	762	570	510	465	46	4	16–Φ34	680	360

Specification Applications

Chemical Processing: Effective for highly corrosive fluid systems in chemical plants.

Petrochemical Industry: Used in acid and alkali transport pipelines.

Pharmaceutical Manufacturing: Ensures contamination-free fluid control.

Water Treatment Plants: Handles aggressive chemicals in water treatment systems.

Valve Actuation

Process Optimization

Precision Engineering

Pipeline Solutions

Industrial Valves

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