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Pneumatic Butterfly Valves

Pneumatic high performance butterfly valve

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: Pneumatic high performance butterfly valves are mainly suitable for gas transportation and process media with high requirements on valve life.
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Introduction

Pneumatic high performance butterfly valves are mainly suitable for gas transportation and process media with high requirements on valve life.

Features

1. There are movable inserts on the outside of the valve seat. It is convenient and simple to replace the valve seat. You only need to remove the insert to take out the valve seat without disassembling the valve plate and valve shaft;
2. Double eccentric butterfly plate with spherical sealing surface is used, together with a single piece of flexible lip seal seat, which is suitable for occasions requiring reliable sealing and good adjustment characteristics;
3. Due to the design of the double eccentric butterfly plate, the valve has a tight sealing performance and prolongs the service life;
4. It can be used to quickly cut off or adjust the flow;
5. Fireproof structure for selection;

Major parts material

Valve body	Ductile iron, cast steel, stainless steel, duplex stainless steel, Bronze
Disc	Cast steel, stainless steel and special materials
Seat	PTFE, RPTFE,
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	wafer, lug, semi-lug
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.