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Hazardous Classified Wall & Remote Mount NFPA 496 Building Pressurization Units

Model WDP & RDP
Wall & Remote Mount NFPA 496
Building Pressurization Units

Product Applications

Emergency Deluge Fire Pump Engine Building with Bebco Whisper Drive™ Building Pressurization Unit


 Process Analyzer Building featuring Bebco Whisper Drive™ Building Pressurization Unit & Industrial Grade Wall Mount Air Conditioner


Security Center with Bebco Remote Mount Whisper Drive™ Building Pressurization Unit & Packaged Air Conditioner

Bebco Model WDP Wall Mount and RDP Remote Mount Whisper Drive™ Pressurization Units are intended for industrial applications and ideal for control rooms, guard stations, motor control centers, switchgear buildings, analyzer houses, laboratories and other industrial facility structures ranging from small to large buildings with one or more rooms, due largely to their vastly superior design. Since Bebco Whisper Drive™ Units can be mounted quickly and easily through a wall cutout, or mounted to an exterior wall or on a roof and ducted into a room, or building or the fresh air intake of a packaged or wall mount HVAC unit, they are also extremely practical retrofit units.

All Bebco Model WDP & RDP Units are equipped with our unique Variable Speed Drive Interface (VFDI) Logic Control Boards. These boards provide a wide array of optional control features, including an emergency shutdown if combustible gas is detected in the intake stack and an emergency control override which engages the primary and secondary fans at full speed to provide high velocity ventilation if combustible or asphyxiating gases are detected within a room or building. These unique features make Bebco Model WDP & RDP Units ideal for analyzer or laboratory rooms and buildings that feature normally sealed sample analysis systems or fume hoods, and for any other buildings where critical personnel and equipment protection is essential. Redundancy is attained by the automatic activation of the secondary fan if the primary fan should ever fail, so a single Bebco unit can accomplish multiple purposes!

Best of all, a large gauge allows easy monitoring of our Whisper Drive™ Units, and Operators will also be alerted promptly to act upon failure of the pressurization unit with both an on-board indicator and alarm outputs that are available with conventional or intrinsically safe outputs.

Additionally, these units can provide a superior solution to applications in highly corrosive on-shore and off-shore locations by selecting 304 or 316 stainless steel corrosion-resistant seal-welded housings!

Consider Bebco Whisper Drive™ Units as the World's most advanced and versatile building and room pressurizers, unequaled in many dynamic ways to any other available product.

You'll surely agree we've set a rugged and innovative standard for building and room pressurization, that easily satisfies the challenging requirements of your harsh, industrial and corrosive environment applications!


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The rugged design of Bebco Model WDP & RDP Whisper Drive™ Pressurization Units makes them an ideal solution for motor control centers, control rooms, analyzer shelters and laboratory buildings!

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Bebco Environmental Controls Corporation
Physical Address: 4725 Lawndale Street, La Marque, Texas 77568
Mailing Address: P.O. Box 68 Hitchcock, Texas 77563
Phone: (844) 397-4822     |   Fax: (409) 935-5819
Office Hours:
 8 AM to 5 PM CST, Monday - Friday
Please visit this site for NFPA 496 UL Classified Enclosure Purging Systems:
Best Purging Systems Corporation

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