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The company has been engaged inn R&D and production of container and
anti-corrosion equipment for 20 years.
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The company integrates scientific research, design, production and marketing into one body, mainly engaged in the manufacture of pressure vessels, medical chemical equipment and accessories, and anti-corrosion lining.

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Current page: Home > prodctsFluorine plastic lined valve series

Fluorine lining butterfly valve D371F46

Product introduction
Butterfly valve has features of small volume, light weight, flexible for start-stop and convenient for installation. It adopts dichotomy two-sheet structure.

Design specifications
GB12238, API609, MSS SP-68

Drive mode
manual operation, worm drive, air-operated, power-driven.

Performance specification

Design and manufacturing	Structure length	Connection flange	Pressure testing	Product mark	Delivery specification
GB/T12237	HG/T3704-2003 GB/T1221	HG20592-97	GB/T13927-92	GB12220	GB/T12252

nominal pressure: PN1.0-1.6(MPa), inside nominal diameter: DN15-DN250(mm).

Sketch map

Standard Material Specifications

No.	name of parts	gray pig iron	cast steel	stainless steel		ultra-low carbon stainless steel
No.	name of parts	Z	C	P	R	P_L	R_L
1	valve body	HT250	WCB	CF8	CF8M	CF3	CF3M
2	butterfly plate	WCB	35(forging)	CF8	CF8M	CF3	CF3M
3	valve rod	1CY13	2Cr13	1Cr18Ni9Ti	1Cr18Ni12Mo2Ti	00Cr18Ni10	00Cr17Ni14Mo2
4	lining layer/valve seat	PTFE(F4) PCTFE(F3) FEP(F46) PFA(soluble F4) PP PO
5	seal ring	FPM(fluororubber)
6	elastic cushion	SI(silicone rubber)
7	bolt	35	35	1Cr17Ni2	1Cr17Ni2	1Cr18NiTi	1Cr18Ni9Ti
8	nut	45	45	0Cr18Ni9	0Cr18Ni9	0Cr18Ni9	0Cr18Ni9
9	handle	WCB

Main size and weight of butt clamp connection

inside nominal diameter		standard valves					reference value
DN(mm)	NPS(inch)	L	D1	D2	f	Z-Φd	Do	H	W(kg)
DN(mm)	NPS(inch)	PN1.0/PN1.6(MPa)
40	1_1/2	33	110	85	3	4-Φ18	260	140	3
50	2	43	125	100	3	4-Φ18	200	145	4
65	2_1/2	46	145	120	3	4-Φ18	250	155	6
80	3	46	160	135	2	4-Φ18/8-Φ18	250	165	8
100	4	52	180	155	3	8-Φ18	300	180	12
125	5	56	210	185	3	8-Φ18	300	203	18
150	6	56	240	210	3	8-Φ23	200*	225	28
200	8	60	295	265	3	8-Φ23/12-Φ23	200*	275	56
250	10	68	350/355	320	3	12-Φ23/12-Φ25	240*	315	72
300	12	78	400/410	368	4	12-Φ23/12-Φ25	240*	348	88
350	14	78	460/470	428	4	16-Φ23/16-Φ25	240*	415	120
400	16	102	515/525	482	4	16-Φ23/16-Φ30	280*	460	145
450	18	114	565/585	532/545	4	20-Φ25/20-Φ30	280*	500	165
500	20	127	620/650	585/608	4	20-Φ25/20-Φ34	320*	530	195
600	24	154	725/770	685/718	5	20-Φ30/20-Φ36	320*	610	268

Main size and weight of flange connection

inside nominal diameter		standard valves							reference value
DN(mm)	NPS(inch)	L	D	D1	D2	f	4b	Z-Φd	Do	H	W(kg)
DN(mm)	NPS(inch)	PN1.0/PN1.6(MPa)
40	1 _1/2	106	145	110	85	3	18/18	4-Φ18	160	140	10
50	2	108	160	125	100	3	20/20	4-Φ18	200	160	12
65	2 _1/2	112	180	145	120	3	20/20	4-Φ18	250	165	13
80	3	114	195	160	135	3	22/22	4-Φ18/8-Φ18	250	170	14
100	4	127	215	180	155	3	22/24	8-Φ18	300	180	16
125	5	140	245	210	185	3	24/26	8-Φ18	300	275	18
150	6	140	280	240	210	3	24/28	8-Φ23	200*	295	42
200	8	152	335	295	265	3	26/30	8-Φ23/12-Φ23	200*	320	78
250	10	250	390/405	350/355	320	3	28/32	12-Φ23/12-Φ25	240*	385	120
300	12	270	440/460	400/410	368	4	28/34	12-Φ23/12-Φ25	240*	390	145
350	14	290	500/520	460/470	428	4	30/38	16-Φ23/16-Φ25	240*	460	202
400	16	310	565/580	515/525	482	4	32/40	16-Φ25/16-Φ30	280*	510	235
450	18	330	615/640	565/585	532/545	4	32/44	20-Φ25/20-Φ30	280*	540	368
500	20	350	670/705	620/650	585/608	4	34/46	20-Φ25/20-Φ34	320*	570	420
600	24	390	780/840	725/770	685/718	5	36/54	20-Φ30/20-Φ36	320*	660	750

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