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Pneumatic fluorine-coated butterfly valve (wafer type)

Technical Specifications

Product model: D671F/F4/F46
Nominal diameter: DN50 to 1000mm
Nominal pressure: PN 0.6 - 1.6 MPa
Applicable temperature range: -20 to +200 degrees Celsius
Applicable media: water, air, natural gas, oil products and highly corrosive fluids
Valve body type: Straight-through cast butterfly valve
Valve plate form: Vertical plate type (midline type)
Connection type: Compression connection
Sealing packing: Polytetrafluoroethylene F4, Perfluoropropylene Ethylene Chloride Copolymer F46

Sales Hotline：

0086-21-59110018

Product Details

Product Overview

The pneumatic fluorine-coated flanged butterfly valve is composed of a fluorine-sealed butterfly valve, an air actuator and a three-way assembly. The pneumatic fluorine-coated butterfly valve uses fully fluorine-coated (F3, F4, F46) polymer materials on the flow channel, butterfly plate and valve stem, and has excellent anti-corrosion properties. It is suitable for pipelines with corrosive substances or those with certain cleanliness requirements, such as alkali, reducing agent, hydrochloric acid, nitric acid, hydrofluoric acid, aqua regia, organic acid, strong acid, concentrated acetic acid and other highly corrosive media. It is driven by compressed air and receives industrial signals to achieve the regulation and opening/closing of the butterfly valve through the cooperation with a positioner or an electromagnetic valve. It is used in food, medicine, chemical, petroleum, power, papermaking and other water supply and gas pipelines to regulate flow and cut off the medium.

Main features

1. The design is novel, reasonable, with a lightweight structure and quick opening and closing.
2. The operating torque is small, the operation is convenient, and it is both labor-saving and agile.
3. It can be installed at any position and is convenient for maintenance.
4. The sealing components can be replaced, and the sealing performance is reliable, achieving a double-sealing with zero leakage.
5. The sealing material has the characteristics of being resistant to aging and corrosion, and having a long service life.

Main external connection dimensions

DN(mm)		50	65	80	100	125	150	200	250	300	350	400	450	500	600	700	800	900	1000
L		90	90	100	115	130	140	150	250	270	290	310	330	350	390	430	470	500	550
L1		43	46	49	56	64	70	71	76	83	92	102	113	127	154	165	190	203	216
H	Wafer	63	70	83	105	115	137	164	206	230	248	289	320	343	413	478	525	585	640
n-φd		4-18	4-18	8-18	8-18	8-18	8-22	12-22	12-26	12-26	16-26	16-30	20-30	20-33	20-36	24-36	24-39	28-39	28-42
H1		It depends on the type of actuator used.
A		The size will vary depending on the torque required by the valve and the type of machine it is configured for.
D		165	185	200	220	250	285	340	405	460	520	580	640	715	840	910	1025	1125	1255
D1		125	145	160	180	210	240	295	355	410	470	525	585	650	770	840	950	1050	1170

Note: The dimensions in the table are without the standard accessories. Additionally, due to product improvements and technological innovations, the parameters may change slightly. Please consult the company's technical department for the latest data.