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Explosion Proof Dampers

BETEC CAD Explosion proof Dampers can stand up to the toughest and most demanding environments and can be custom-built to meet the exact needs of virtually any ventilation or process applications.
Ex-D - GB / SB 40, Galvanized / Stainless Steel Construction
Aerofoil Blades; Static / Dynamic; Fire Rating : 3 Hrs.
Leakage Rating to Class-2, at 250°F. Drive : Electric / Pneumatic.: Ex-D-GB-40B ; Ex-D-GB-40BPn ; Ex-D-SB-40B ; Ex-D-SBPn
Ex-D SB-40 Series is a stainless steel high performance 3hr. rating fire damper, to ensure lowest resistance to airflow in HVAC systems with velocities to 3000 fpm (10.2 m/sec.) and 4” w.g. (1000Pa) may be installed vertically or horizontally (with blades running horizontally) and is rated for airflow and leakage class 2 in either direction.
Ex-D-GB-40 --- All Steel Heavy Duty Industrial 2’’(50mm) Flanged Frame Damper.
Max. System velocity --- 3000FPM ; Max. air leakage ---- 0.4% with seal.

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Explosion Proof Actuator
Actuators are rated for Class I, Division 1, Groups B, C and D. The classification of "Class I" means that flammable gases or vapors may be present in the air in quantities sufficient to produce explosive or ignitable mixtures. "Division 1" means that hazardous concentrations in the air may exist continuously, intermittently, or periodically under normal operating conditions. "Group B" allows for atmospheres containing hydrogen, or gases (or vapors) of equivalent hazard, such as manufactured gas. "Group C" allows for atmospheres containing etyhyl-ether vapors, ethylene or cyclo propane. "Group D" allows for atmospheres containing gasoline, hexane, naptha, benzene, butane, alcohol, acetone, benzol, lacquer solvent vapors, or natural gas. EL Series actuators are not rated for operation in atmospheres containing acetylene.

Explosion Proof Actuator
EL100 linear actuators offer all the advantages of patented inverted roller screw actuator designs in a Class 1, Division 1, Groups B, C, D and T3 explosion-proof package. The EL100 linear actuators also meet ATEX essential requirements and are in conformity with the EU ATEX Directive 94/9/EC.

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