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GV400 Series【Pneumatic Flat-seat Valve】
GV404 Series Pneumatic Flat-seat Valve【Flange Ends】
Home > Products > Pneumatic Globe Control Valve > GV400 Series【Pneumatic Flat-seat Valve】 > GV404 Series Pneumatic Flat-seat Valve【Flange Ends】 > GV404 Series Pneumatic Flat-seat valve【Flange Ends】
Application Field
Petrochemical Industry;
Machinery and Automation Equipment;
Dyeing, Printing, and Purification Technology;
Beverage Processing Industry;
Heat Exchange System;
Industrial Steam Sterilization and Separation Equipment;
Bio-fermentation Equipment;
Industrial Gas Generation and Separation Equipment;
Product Introduction
High flow due to angle seat design
Anti-waterhammer design (fluid entry under the disc)
Standard gland packing suitable for Vacuum up to 10
Wide range of piston-type operators (40 - 50- 63 - 90 - 110 -125 -150 - 160mm dia.) rotatable through 360°, for maximum performance at different minimum pilot pressures
High performance, maintenance-free stuffing box
Valve body material: AISI 304,AISI 316, AISI316L and Gunmetal
Valve ends: Female thread, Male thread,Butt welds, Socket welds, Flange ends, and Tri-clamp ends.
Range available from 3/8”to 4” in the double acting versions, spring return N.C.from above and below the seat, spring return N.O. from below the seat.
The variations in the actioning of the valve, the several combinations and the possibility to intercept the fluid from above or below the seat, originate multiple versions of the automatic valve.
On the basis of the kind of valve and the variations of pressure that must be intercepted, the necessary control pressure can be individuated, and consequently, the code for the corresponding valve.
Technical Specifications
Product Features
High flow due to angle seat design；
Anti-waterhammer design (fluid entry under the disc)；
Standard gland packing suitable for Vacuum up to 10⁻² mbar
Wide range of piston-type operators (40 - 50- 63 - 90 - 110 mm dia.) rotatablethrough 360°, for maximum performance at different minimum pilot pressures；
High performance, maintenance-free stuffing box;
Valve body material: AISI 304,AISI 316, AISI316L and Gunmetal;
Valve ends: Female thread, Male thread,Butt welds, Socket welds, Flange ends, and Tri-clamp ends.
Range available from 3/8”to 4” in the double acting versions, spring return N.C.from above and below the seat, spring return N.O. from below the seat.
The variations in the actioning of the valve, the several combinations and the possibility to intercept the fluid from above or below the seat, originate multiple versions of the automatic valve.
On the basis of the kind of valve and the variations of pressure that must be intercepted, the necessary control pressure can be individuated, and consequently, the code for the corresponding valve.
Options and Accessories
• Signaling box or compact signaling unit
• Stroke limiter for opening
• Manual safety device
• Positioner for proportional control
• Optical position indicator on 40, 50, 63, 90, 110mm.
• NAMUR port mounting pilot is optional;
• NET-INOX passivation treatment on stainless steel body valve
• ATEX 94/9/EC versions for potentially explosive atmospheres
• Polit operated drain valve assembly with electronic timer (see solenoids, coils & Accessories sections)
• Male thread ,Weld end, clamp and flange end connections are available on request
• Vacuum applications up to 10⁻² mbar
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