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Brass auto drain valve with timer and NEMA 4 enclosure

Dynaquip Controls

Dynaquip Controls AD2A 1 1/4 Auto Drain Valve 115V

SKU CH-XNW1-W50T1

Automatically removes condensate from compressed-air systems with an adjustable timed cycle and 12.8 gal purge capacity at 200 psi

  • Automated condensate removal with 12.8 gal per cycle
  • Adjustable drain interval from 1 minute to 14 days
  • NEMA 4 enclosure protects against dust and water ingress
  • Lead-free brass body rated for 200 psi maximum pressure
  • Operates on 115 V, 60 Hz power drawing 0.83 A

Timed Electric Auto Drain Valve

The Dynaquip Controls AD2A is a timed electric auto drain valve designed for compressed-air systems that require automatic condensate removal. It operates on 115 V AC at 60 Hz and draws 0.83 A. The valve body is lead-free brass with a NEMA 4 enclosure suitable for indoor or outdoor installations. Adjustable drain cycles from 1 minute to 14 days and a fixed 7-second purge time let maintenance teams match discharge frequency to system demand.

Replaces Manual Drain Valves

This unit replaces manual ball or petcock drains that rely on operator attention, eliminating the risk of forgotten blow-downs and water carry-over into downstream equipment. The upgrade is worth it when condensate volume is high enough that daily manual draining becomes impractical or when unattended weekend operation is required. Systems running continuously at 12.8 gallons per cycle benefit most from the programmable interval.

Practical Limits of 115 V Timed Drain

The valve is rated for a maximum pressure of 200 psi and an operating temperature range of 35 to 165 degrees F, so it cannot be used on high-pressure or cryogenic lines. The 1 1/4-inch pipe and drain ports limit flow capacity to the stated drain rate, making it unsuitable for larger main headers without multiple units. Buyers who need stainless-steel construction, higher pressure ratings, or zero-air-loss demand drains must specify a different product class.

Highlights

  • Automated condensate removal with 12.8 gal per cycle
  • Adjustable drain interval from 1 minute to 14 days
  • NEMA 4 enclosure protects against dust and water ingress
  • Lead-free brass body rated for 200 psi maximum pressure
  • Operates on 115 V, 60 Hz power drawing 0.83 A

Specifications

BrandDYNAQUIP CONTROLS

Questions about this item

What pipe thread size does the AD2A auto drain valve use for installation?

The valve connects with 1 1/4 inch pipe threads on both inlet and drain ports, and includes 1/4 inch bushings for adapting to smaller fittings if required.

How do I set the drain interval on this timed electric valve, and what is the common mistake?

Adjust the cycle timer between 1 minute and 14 days; the frequent error is leaving the purge duration at the factory 7 seconds instead of matching it to actual condensate volume.

When should I replace the internal solenoid or seals on this 115 V auto drain?

Plan inspection every 12 to 16 months; replace the solenoid if current draw exceeds 0.83 A or if the valve fails to open at 200 psi max pressure.

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