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Pneumatic Butterfly Valves

Pneumatic butterfly valve for acid resistance

Min. Order: 1 Set
Delivery time: 5 days
Production Capacity: 10000 set/Month
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram
Product description: It has a split body and adopts a PTFE-lined butterfly disc with a spherical sealing surface to ensuring zero leakage while the valve body liner can effectively free the valve shaft from corrosive med
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Introduction

Pneumatic butterfly valve for acid resistance is suitable for all kinds of strong corrosion, weak corrosion or certain cleanliness conditions with temperature ≤ 150 ℃. It is used to adjust the flow and intercept the medium.

Features

1. The PTFE-lined disc has a spherical sealing surface,
2. The valve is easy to operate, has tight sealing performance, and has a long service life; 3
3. Suitable for occasions requiring reliable sealing and good adjustment characteristics.
4. The seals at both ends of the valve shaft are controlled by adding fluorine rubber to the rotating base surface between the disc and the valve seat to ensure that the valve shaft does not come into contact with the fluid medium in the cavity.

Major parts material

Valve body	Ductile cast steel, cast steel, stainless steel,
Disc	Gray cast iron, ductile cast steel, cast steel, stainless steel and special materials
Liners	PTFE
Stem	2Cr13 , 304, 316, 2205
Packing	V -shaped PTFE packing, flexible graphite packing

Specification

Nominal diameter	DN50 ~ 1000mm
Nominal pressure	PN1.0 , 1.6 MPa
Flange standard	EN1092-1, ANSI B16.5, JIS B220 ,
Connection Type	Flange type, wafer type
Actuator model	Single and double acting pneumatic actuators
Supply pressure	400 ～700KPa
Air source interface	G1/4" , G1/8" , G3/8" , G1/2"
Ambient temperature	-30 ～+70 ℃
Operating temperature	-20 ℃ ～+90 ℃
Operation mode	Single-acting actuators: air-closed (B) -valve position open (FO) when degassed; air-opened (K) -valve position closed (FC) when degassed
Operation mode	Double-acting actuators: air-closed type (B) -valve position maintenance (FL) when degassed; air-opened type (K) -valve position maintenance (FL) when degassed
Accessories	positioner, solenoid valve, air filter pressure reducer, retention valve, travel switch, valve position transmitter, hand wheel mechanism, etc.