※ Product name：Fluorine lined clamp butterfly valve
※ Product model：D371F46-16C
※ Product specification：DN50-1200
※Lining material：FEP（F46）、PFA
※ Connection: clamp, flange
First、overview
On the clip-type fluorine lined butterfly valve body, valve seat and valve plate lined with PTFE - body, valve work, only the valve lining and butterfly plate contact with the medium, the valve can withstand the lining material introduced by the medium corrosion, the four-pole sealing structure and in the sealing surface with temperature resistant elastic tetrafluoroethylene gasket, to achieve zero leakage medium.
Second、Product characteristics
1、It can be used to cut off or adjust the flow quickly.
2、Suitable for fields requiring reliable sealing and good regulating characteristics.
3、The product is compact in structure, beautiful in appearance, reasonable in process and reliable in performance.
4、The valve is easy to operate, tight sealing performance and long service life.
5、The valve body adopts split type, and the seal at both ends of the valve shaft is controlled by the rotating base fluorinated rubber between the butterfly plate and the seat.
6、Ensure that the valve shaft is not in contact with the fluid medium in the chamber, the replacement of the valve shaft is very convenient, the valve does not need to remove the pipeline can be completed.
7、The butterfly valve uses a teflon-lined disc with a spherical sealing surface and a silicone rubber gasket at the base of the seat to adjust the sealing performance of the valve.

First、Technical standard

Design and manufacture	GB/T12238(Center line)
Structural length	G812221(Short series) ASME B16.10 JIS B2002
Flange size	HG20592-97 ANSI B16.5a JIS B 2212
Link size	Clamping and flange type
Driving mode	Manual, electric, pneumatic Hand、 electrically-driven. air-operated
Nominal pressure	0.6、1.0、1.6、2.5MPa Class150 JIS10K
Pressure test	GB/T13927-92 Ap1598

Second、Basic model

manual	D71F4/P(Half lining)	turbine	D371F4/P(Half lining)
	D71F46/P(Half lining)		D371F46/P(Half lining)
	D71F4 Full lining		D371F4 Full lining
	D71F46 Full lining		D371F46 Full lining
pneumatic	D671F4/P(Half lining)	electric	D971F4/P(Half lining)
	D671F46/P(Half lining)		D971F46/P(Half lining)
	D671F4 Full lining		D971F4 Full lining
	D71F64 Full lining		D971F46 Full lining

Third、Main connection size

Gb butterfly valve connection size

Size		PN10			PN16			A	B	C	ФD	H	L	ФDO
DN	NPS	D1	N-Фd	&°	D1	N-Фd	&°
32	11/4	100	4-Ф18	90	100	4-Ф18	90	110	64	99	34.6	222	33	120
40	11/2	110	4-Ф18	90	110	4-Ф18	90	120	70	99	43	238	33	120
50	2	125	4-Ф18	90	125	4-Ф18	90	140	80	99	52.9	268	42	120
65	21/2	145	8-Ф18	90	145	8-Ф18	90	150	89	99	64.5	287	45	120
80	3	160	8-Ф18	90	160	8-Ф18	45	158	95	99	78.8	301	46	120
100	4	180	8-Ф18	45	180	8-Ф18	45	176	114	115	104	338	52	120
125	5	210	8-Ф18	45	210	8-Ф18	45	190	127	115	123.3	371	55	200
150	6	240	8-Ф22	45	240	8-Ф22	45	211	139	220	155.1	404	56	200
200	8	295	8-Ф22	45	295	12-Ф22	30	235	175	220	202.5	481	61	300
250	10	350	12-Ф22	30	355	12-Ф26	30	265	203	220	250.5	539	66	300
300	12	400	12-Ф22	30	410	12-Ф26	30	305	242	323	301.5	627	77	400