Pneumatic Fluorine Lining Control Butterfly Valve

WUYI's pneumatic lined regulating butterfly valve combines a pneumatic piston actuator with a fully lined PTFE-sealed butterfly valve, designed for corrosive or purity-sensitive media (≤80°C).

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Product Overview

WUYI Pneumatic Lined Regulating Butterfly Valve combines a pneumatic piston actuator with a fully lined PTFE-sealed butterfly valve, designed for corrosive or purity-sensitive media (≤80°C). Featuring thick polymer lining on all wetted components (body, disc, and stem), it delivers exceptional corrosion resistance for acids, alkalis, salts, oxidizers, reducers, and organic solvents at any concentration.

This valve is ideal for flow control and isolation in gas, liquid, and semi-fluid systems across chemical, petroleum, pharmaceutical, food, steelmaking, paper, and hydropower industries.

Technical Parameters

Parameter	Specification
Body form	Straight through casting butterfly valve
Nominal diameter	DN50~1000mm
Nominal pressure	PN1.0, 1.6MPa, Class150Lb
Flange standard	HG/T20592-2009, ANSI B16.5, JIS B220
Connection mode	Flange type, clamp type
Bonnet form	A pose
Gland type	Gland pressure type
Sealing packing	Y-type polytetrafluoroethylene packing, flexible graphite packing
Plate form	Vertical plate (butterfly)
Flow characteristic	Equal percent, fast start, linear
Actuator type	GT series, AT series, AW series, THQSGY series single and double action pneumatic actuators
Air pressure	400~700KPa
Air interface	G1/4", G1/8", G3/8", G1/2"
Ambient temperature	-30~+70℃
Role form	Single-acting actuator: gas-off type (B)--valve position opens (FO) when gas is lost; Gas open (K) loss of air pressure valve position off the (FC) Double-acting actuators: gas-off type (B)--valve position remains (FL) when air is lost; Open air (K)--valve position remains (FL) when the air is lost
Accessories available	Positioner, solenoid valve, air filter reducer, position holding valve, trip switch, valve positioner, interlock mechanism, handheld mechanism, etc.

Pneumatic Fluorine Lining Control Butterfly Valve Parameter Diagram

Pneumatic Fluorine Lining Control Butterfly Valve

Product Overview

Key Features

Technical Parameters

Flow Characteristic Curve