Valdisk

Valdisk

The Valtek Valdisk valve is a high-performance butterfly control valve. Its double-offset shaft provides eccentric-cammed disc rotation to lift it out of the seat, thus immediately eliminating seat friction, to improve throttling control and reduce seat wear. A one-piece splined shaft connected to a clamped actuator lever provides excellent throttling control. Its soft seating arrangement is designed for bubble-tight shutoff while maintaining low breakout torque.

Brand: Valtek
Category: Butterfly & Offset
Valve Size 2" to 60"
Pressure Class Standard ASME B16.34
Pressure Class Range Class 150, 300, 600
Body Wafer, Double-Flanged
End Connections Lugged, Integral Flange, Flangeless
Face-to-Face Standard API 609
Bonnet Body Integral
Packing Standard, Twin Seal, Vacuum Seal, Fugitive Emissions, Live-Loaded, Fire-Safe
Configuration Double-Offset
Trim Contoured Eccentric-Cammed Disc
Trim Characteristics Linear
Seating Metal-to-Metal & Soft
Shut-Off Classification ANSI FCI 70-2 Class IV, V, VI

Valdisk design for high-cycle applications, such as pressure swing adsorption (PSA) and air separation that experience more than 200,000 cycles per year.

The disc rotates out of seat immediately, eliminating seat friction, to improve throttling control and reduce seat wear

A one-piece, splined shaft end, combined with actuator lever clamp, eliminates lost motion between shaft and actuator to improve throttling control

Tapered shaft to disc pins provide tight connections for excellent control without requiring the shaft to be drilled

Inherently linear flow characteristic provides good control over the entire flow range

Soft seat (Class VI) and metal seat (Class IV) provide reliable long-life, shut-off capability

Packing provides low emissions for a variety of applications, complying with industry standards

Certifications Canadian Registration Number (CRN)
Safety Integrity Level (SIL) 3 Capable
PED Directive 97/23/EC
Design_Standards API 609 – Butterfly Valves: Double-Flanged, Lug and Wafer
ASME B16.47 – Large Diameter Steel Flanges
ASME B16.5 – Pipe Flanges & Flanged Fittings
ASME B16.10 – Face to Face & End Dimensions of Valves
ASME B16.25 – Buttwelding Ends
ASME B16.34 – Valve Flanged, Threaded, and Welding End
ASME SA Materials
ASTM A Materials
Quality IS0 9001:2008
ATEX QAN
IECEX QAR