DB Series

The “double block and bleed” knife gate valve was specially developed for applications using hazardous media. The DB model is a single valve with two seat areas. In the closed position, these provide a seal against pressure from both ends of the valve, and there purge ports to flush the cavity between the seat areas. The DB model thus makes complex and costly multiple valve systems redundant. In spite of these cost benefits, it offers zero leakage protection in difficult applications.

DB

CHARACTERISTICS DB Series

3 – 30 inch
Nominal sizes
Stainless steel, Special material
Material
0 – 150 psi
Pressure rating
ANSI Class 150
Flange drilling
Special length
Face to face dimension

Application areas

Pulp and paper industry
e.g. Chemical solutions, bleaching agents ...

MATERIAL OF CONSTRUCTION

Part Stainless steel
Body Edelstahl CF8M
Gate 1.4404*
Seal Aflas
Topwork Carbon steel
Stem / Piston rod 430F

Other materials upon request
* hard chromed

CORROSION PROTECTION

Topwork

2K Epoxid-Polyamidharzgrundierung, 2K Polyurethan-Email-Deckanstrich 

Screws Stainless steel

ACTUATORS

Handwheel

Handwheel

Bevel gear

Bevel gear

Pneumatic cylinder

Pneumatic cylinder

Hydraulic cylinder

Hydraulic cylinder

Electric actuator knife gates & control gates

Electric actuator

DOWNLOADS

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