BD8402W Dehydrator Series
BD8402W Automatic Dehydrator, 220-230 VAC 50/60Hz

Rev : A | Rev date : 12 Jun 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 BD8402W 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 BD8402W 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 9911L/h
  • Dual, Independently Functioning Systems
  • LCD display of All Operating Parameters
  • Status & Configuration Access via Web Browser Interface
  • Remote Access and Alarm Reset Capabilities
  • SNMP Communication Compatible
  • Accurate Humidity Sensing within ±0.1% RH
  • Ultra Quiet Compressors
  • Removable Compressor Tray for Ease of Maintenance
  • 8,000 Hour Maintenance Interval

Technical features

General Specifications

Product TypeAutomatic Dehydrator
max. System Volume @Sea Level l83.230
Output Capacity l/hNormal: 7670 Continuous; Maximum: 9911 Emergency
Output Pressure kPa (PSIG)0 - 103.4 (0 - 15)
Ouput Air Relative Humidity %>2 RH
Number of Outlets1
Output FittingSingle, 1/2" NPT female
Noise Level at 3m dBA78.8
Network Managementvia Web Browser or SNMP through RJ-45 Ethernet Connection


Operating Voltage V220-230 VAC, 50 / 60Hz Note: 1
OperatingCurrent A15

Mechanical Specifications

Dimension H x D x Wcm124.5 x 53.3 x 64.1


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
P0117666-Month Maintenance Kit for BD8402W Series
P0118138000 Hour Maintenance Kit for BD8402W Series
P01181416000 Hour Maintenance Kit for BD8402W Series
P011752Installation Kit for BD8402W 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: (30 Amp service recommended)

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