Water Separators

Water Separators

Models | A3006WS to A31500WS

Flow Rates 6SCFM (10Nm3/hr) to 1500 SCFM(2550 Nm3/hr)

Integrating into Walker Filtration’s compressed air filtration range, the Alpha Water Separators combines proven Alpha centrifugal technology with a new forward thinking housing design to deliver market leading water removal efficiencies – eliminating 99% bulk water with continuously low differential pressure.

The custom engineered centrifugal module features unique vanes to eliminate points of low efficiency, and a vortex arrestor to stop re-entrainment – ensuring minimal operating pressure loss and maintaining excellent liquid removal, even at slow velocities.

No replacement components are required, making Walker Filtration’s Water Separators a viable and cost-effective solution for removing bulk water from compressed air.

Unique Centrifugal Module

Removes up to 99% of bulk water even at slow velocities

Externally Accessible Drain Valve

Eliminates the need to access inside the water separator housing when servicing the drain

Modular Construction

Low cost connecting kits and new filter head design enables easy close coupling assembly

  • Energy Saving

    Water Separators operate with consistently low differential pressure reducing both energy consumption and operation costs

  • Flexible Installation

    Modular design and accessible fixings enable simple close coupling assembly

  • Cost Effective

    No replacement components required

  • Externally Accessible Drain Valve

    Drain valve can be removed externally on larger modules

  • Product Safety in Mind

    Guaranteed safe housing with rotational safety stop

  • Corrosion Protection

    Internal and external electrophoretic painting followed by a tough exterior polyester powder coating

Filter Model Pipe Size Inches Inlet Flow Rate* Dimensions Inches (mm) Weight
SCFM NM3/hr A B C D lbs kg
A30006WS 1/8 6 10 1.97 (50) 0.67 (17) 6.18 (157) 2.36 (60) 0.6 0.3
A30015WS 1/4 15 25 1.97 (50) 0.67 (17) 6.18 (157) 2.36 (60) 0.6 0.3
A30025WS 1/4 25 42 2.76 (70) 0.91 (23) 9.09 (231) 2.76 (70) 1.3 0.6
A30032WS 3/8 35 54 2.76 (70) 0.91 (23) 9.09 (231) 2.76 (70) 1.3 0.6
A30050WS 1/2 50 85 2.76 (70) 0.91 (23) 9.09 (231) 2.76 (70) 1.3 0.6
A30070WS 1/2 70 119 5.00 (127) 1.26 (32) 11.22 (285) 3.15 (80) 3.7 1.7
A30125WS 3/4 125 212 5.00 (127) 1.26 (32) 14.57 (370) 3.15 (80) 3.7 1.7
A30175WS 1 175 297 5.00 (127) 1.26 (32) 14.57 (370) 3.15 (80) 3.7 1.7
A30280WS 1 1/4 280 476 5.51 (140) 1.61 (41) 18.74 (476) 3.35 (85) 6.6 3.0
A30320WS 1 1/2 320 544 5.51 (140) 1.61 (41) 18.74 (476) 3.35 (85) 6.6 3.0
A30400WS 1 1/2 400 680 6.69 (170) 2.08 (53) 20.00 (508) 3.94 (100) 10.8 4.9
A30700WS 2 700 1189 6.69 (170) 2.08 (53) 27.87 (708) 3.94 (100) 10.8 4.9
A30850WS 2 1/2 850 1444 8.66 (220) 2.75 (70) 16.54 (420) 3.94 (100) 17.6 8.0
A31500WS 3 1500 2550 8.66 (220) 2.75 (70) 16.54 (420) 3.94 (100) 17.6 8.0

*Rated flow at 100 psig (7 barg), reference conditions at 14.7 psi(a) (1.014 bar (a)) 68 °F (20 °C)

Grade WS
Minimum recommended operating temperature – automatic drain 34 °F 1 °C
Maximum recommended operating temperature – automatic drain 176 °F 80 °C
Maximum working pressure – automatic drain 232 psig 16 barg
Minimum recommended operating temperature – manual drain 34 °F 1 °C
Maximum recommended operating temperature – manual drain 248 °F 120 °C
Maximum working pressure – manual drain 300 psig 20.7 barg
Typical pressure loss at rated flow 0.8 psi 55 mbar

Technical Notes

  1. Water Separators are fitted as standard with normally open float operated automatic drain valves, ADVS16 on models A30006WS to A30050WS and ASVSE16 on models A#0070WS to A31500WS. Normally closed operated automatic drain valves (ADVS16C) are available for low range flow applications (2.5 SCFM, 4.2 Nm3/hr). 300 psig (20.7 barg) range at 248 °F (120 °C) is available when supplied with a manual drain valve (MDV25 on models A30006WS to A30050WS and MDVE25 on models A30070WS to A31500WS). Standard filters can operate at 232 psig (16 barg) at 176 °F (80 °C).
  2. Connecting kits are required to connect Water Separators to models A30006 to A31500
  3. Wall mounting brackets are available for all models
  4. Standard threaded connections are NPT to ANSI/ASME B1.20.1. RP (BSP Parallel) to ISP 7-1 and RC (BSP Taper) to ISO 7-1 are also available upon request.

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