BD55*W* Dehydrator Series
BD55*W* Automatic Dehydrator, 110-125 VAC 50/60Hz or 208-253 VAC 50/60Hz

Rev : P1 | Rev date : 30 May 2023

The dehydrator removes the moisture from damp ambient air to deliver a reliable, constant, ondemand source of dry and pressurised air, which is critical to prevent the systems from performance and reliability degradation by condensation. The BD550W series dehydrators offer pressurization solutions to transmission lines and antennas in both telecom and broadcasting applications. Its low pressure models (suffix LP) are suitable for applications where reduced pressure is required, for example, pressurisation of broadcast antenna radomes, microwave waveguides and other transmission lines. The inherent reliability of the BD series design, combined with the high output capacity and remote real-time data capabilities make these units an ideal choice for pressurisation of systems at unattended sites. The BD550W Series dehydrators employ a fully digital operating platform offering the most accurate readings of operating variables, either from the front panel or by a remote IP connection.


  • Air Delivery up to 649L/h
  • Operating  pressure can be changed by a simple adjustment at the dehydrator
  • Available in 110VAC or 220VAC Power Supply • Remote Real-Time Data and Alarm Reset Capabilities
  • SNMP Communication Compatible
  • Digital Display of All Operating Parameters
  • Imperial and Metric Unit of Measure Options
  • 8,000 Hour Maintenance Interval
  • Compact and Lightweight
  • Versatile Installation, Standalone, Optional Rack/Wall Mount
  • Ultra Quiet Compressor

Technical features

General Specifications

Product TypeAutomatic Dehydrator
max. System Volume @Sea Level l5.455
Output Capacity l/hNormal: 413 Continuous; Maximum: 649 Emergency
Output Pressure kPa (PSIG)13.8 - 103.4 (2 - 15)2.07 - 51.71 (0.30 - 7.5)13.8 - 103.4 (2 - 15)2.07 - 51.71 (0.30 - 7.5)
Ouput Air Relative Humidity %>2 RH
Number of Outlets1
Output FittingSingle, 3/8" Press-to-Lock tube fitting
Noise Level at 3m dBA48
Network Managementvia Web Browser or SNMP through RJ-45 Ethernet Connection


Operating Voltage V110 - 125 VAC, 50 / 60Hz Note: 1208 - 253 VAC, 50 / 60Hz
OperatingCurrent A73.5

Mechanical Specifications

Dimension H x D x Wcm68.6 x 30.8 x 43.8


Ambient Temperature Range °C+5 to +30 Note: 2



Standard Alarm - Complete readings of all critical measurement points, individual alarm indication display, including SNMP communication.

High Outlet Pressure Alarm

Low Outlet Pressure Alarm

High Humidity Alarm

High Flow Rate Alarm

High Cabinet Temperature Alarm

High Compressor Last Run Time Alarm


Model NameDescription
P0134786-Month Maintenance Kit for BD55*W* Series
P0134798000 Hour Maintenance Kit for BD55*W* Series
P011674Universal Rack Mounting Kit for BD55*W* Series
P011773Wall Mounting Kit for BD55*W* Series
GLK-1Start up Kit for Dehydrator
PWM2G2-Port Manifold with Pressure Gauges
PWM2GC2-Port Manifold with Pressure Gauges & Valves
MLK-2Start up Kit for 2-Port Manifold
PW4MG4-Port Manifold with Pressure Gauges
PW4MGC4-Port Manifold with Pressure Gauges & Valves
MLK-4Start up Kit for 4-Port Manifold
PWM8G8-Port Manifold with Pressure Gauges
P8WMGC8-Port Manifold with Pressure Gauges & Valves
MLK-8Start up Kit for 8-Port Manifold
TUBE-38OD-PONGas inlet adaptor 1/8” NPT for 3/8” OD tube
TUBE-M12-G18Gas inlet Adapter M12x1.5 - G1/8

Screen image showing remote display of dehydrator status and alarms

External Document Links


Note 1: (15 Amp service recommended)

Note 2: Unit will go into SHUTDOWN mode if cabinet temperature exceeds 49°C