Lined Butterfly Valve

Fluorine-lined (plastic) wafer butterfly valve belongs to the field of special valve for strong corrosive medium. The valve is the opening and closing parts that the butterfly plate rotates together with the valve stem, which is used to realize the opening, closing and adjustment of the valve. The lining material has corrosion-resistant, aging-resistant fluoroplastics, and other lining materials, so it has reliable corrosion resistance and sealing performance. It is widely used in industrial control systems such as chlor-alkali, chemical industry, petroleum, metallurgy, medicine, electric power, etc., and the control of strong corrosive gases and liquid media such as acid and alkali.

Product Model: D371F46-16C

Product specification: DN40-1200

Product features: Corrosion resistance: The valve body cavity is lined with plastic or other lining materials with a thickness of 2.5~3mm, which is resistant to acid, alkali and strong corrosion.

Features:

1. Corrosion resistance: The valve body cavity and disc are lined with 2.5~3mm thick plastic or other lining materials, which are resistant to acid, alkali and strong corrosion.

2. Good sealing performance: Because the center of the valve and the rotating center of the disc have a small eccentricity, and the contact surface of the plastic lining layer is a soft seal, the sealing effect is good.

3. Adjustable sealing surface is adopted in structure, which helps to have a long service life and solves the problem of easy leakage of traditional wafer butterfly valves.

Wafer connection fluorine-lined butterfly valve (center line):

Design and manufacture in line with Chinese national standards

Basic structure (the disc shaft coincides with the center of the valve body/valve seat)

D71PoF46PFA fully lined type

Body full lining/disc full lining/disc and disc shaft are integrated

D71F4 Fully Lined Type

Body full lining/disc full lining/disc and disc shaft combined assembly

D71F semi-lined type

The valve body is fully lined/disc is a combination of stainless steel (unlined) disc and disc shaft.

Main Parts Materials 

 Dimension 

Nominal Diameter		Value							Reference
DN (mm)	NPS (inch)	L	D	D1	D2	f	b	Z-φd	D0	H	W(kg)
		PN1.0(MPa)
40	11/2	33	145	110	85	3	18	4-φ18	160	140	3
50	2	43	160	125	100	3	20	4-φ18	200	200	4
65	21/2	46	180	145	120	3	20	4-φ18	250	250	6
80	3	46	195	160	135	3	22	4-φ18	250	250	8
100	4	52	215	180	155	3	22	8-φ18	300	185	12
125	5	56	245	210	185	3	24	8-φ18	300	203	18
150	6	56	280	240	210	3	24	8-φ23	200	225	28
200	8	60	335	295	265	3	26	8-φ23	200	275	56
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