Combo Integrated Strainer/Ball Valve Drain Assembly – 300 psi

The COMBO is unique in the fact that the solenoid valve has an integrated ball valve strainer. The COMBO offers all the advantages of a timer controlled drain and in addition has the protection of a mesh strainer, preventing large particles from blocking the valve orifice. The unit can be shut off from the compressed air system enabling safe maintenance work to be carried out.

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  • Timer Manual TEST switch- Yes, micro switch
  • Timer Environmental protection- IP 65, NEMA 4 when installed
  • Valve Insulation- Higher-grade H coils. Industry standard is grade F. Grade H offers superior resistance to higher temperature and longer life.
  • Valve Body- Forged brass, 4.0 mm orifice.
  • Mounting Positions- Horizontally or Vertically
  • Bright lights for clearer indication of operating status.
Item #
Item Name
Valve In/Out Port (NPT Female)
Working Pressure (Max)
Timer Working Voltage
2553HV COMBO 1/2″ 300 psi 380 volt
2503 COMBO 1/2″ 300 psi 230 volt
2523 COMBO 1/2″ 300 psi 115 volt
2563 COMBO 1/2″ 300 psi 24 vac
2583 COMBO 1/2″ 300 psi 24 vdc
2553LV COMBO 1/2″ 300 psi 12 vdc
2503HP COMBO 1/2″ 500 psi 230 volt
2523HP COMBO 1/2″ 450 psi 115 volt
321495 Optional self cleaning pigtail can be used on all combo valves. Sold separately, installed by customer
9038 Optional hose barb
Specifications
Product Name
 COMBO Integrated Strainer/Ball Valve Drain Assembly- 1/2 inch
Working Pressure (Max)
 300 psi
Working Pressure Range (Min-Max)
 0 – 300 psi
Orifice Size
 4.0 mm
Timer Working Voltage
 24 –240 DC/VAC
Timer Voltage Options ± 10%
 24—240 VAC/DC 50/60 Hz
Body Material
 Brass
Timer Adjustable Interval Time
 0.5 – 45 Minutes
Timer Adjustable Discharge Time
 0.5 – 10 Seconds
Max. Timer Current Consumption
 4 mA
Timer Operating Temperature
 -40 to +140 °F
Timer Housing Material
 ABS Plastic FR Grade
Timer Connection
 DIN 43650A, ISO 440/6952
Timer Indicators
 1 LED (yellow) indicating ON, 1 LED (yellow) indicating OFF
Valve Type
 2/2 Way Direct Acting with incorporated Ball Valve Strainer
Valve Ambient Temperature (Min/Max)
 35 – 130 °F
Max. Valve Media Temperature
 190 °F
Valve Voltage ± 10%
 Per coil
Note for Valve Voltage
 See coil for correct voltage.
Valve In/Out Port (NPT Female)
 1/2 Inch O.D. X 1/4 Inch I.D. Dual Inlet
Valve Inlet
 1/2 Inch O.D. X 1/4 Inch I.D. Dual Thread
Valve Outlet
 1/2 NPT Female
Note: Float drains and manual drains are no longer accepted as reliable drains. Downstream processes can be
seriously disrupted, simply because an unreliable drain has been applied. Float drains are notoriously known for their failure rate and are widely recognized.