SPEEDAIRE
SPEEDAIRE 53RG52 Auto Drain Valve 1/2" NPT 75 gpm
Automatically drains compressed-air systems at up to 75 gpm through a 1/2″ NPT brass valve with adjustable cycles from 0.5 min to 99 hr and 0.5–10 sec purge time
- Automated condensate removal with adjustable cycle from .5 minute to 99 hours
- Handles high flow at 75 gpm drain rate through 1/2 in NPT ports
- Operates reliably up to 725 psi maximum pressure in compressed air systems
- IP65 brass enclosure resists dust and water jets in harsh environments
- Ready to install with included 6 ft power cord for 115 V supply
SPEEDAIRE 53RG52 Auto Drain Valve
The SPEEDAIRE 53RG52 is a timed electric auto drain valve designed for compressed air systems. It features a 1/2 in NPT pipe size and a 1/2 in drain size with a 75 gpm drain rate. The brass body handles a maximum pressure of 725 psi and operates from 14 to 140 degrees F. An IP65 enclosure protects the 115 V, 60 Hz, 0.3 A internals. Adjustable cycles run from 0.5 min to 99 hr with a 0.5 sec to 10 sec purge. A 6 ft power cord is included.
Replaces Manual Drain Valves
This unit replaces manual drain cocks or basic timer drains that require operator attention. The jump is worth it when condensate buildup threatens air tools or piping and scheduled purges are impractical. The programmable cycle eliminates forgotten drains while the IP65 rating suits wash-down areas. Brass construction resists corrosion better than plastic-bodied alternatives in high-pressure lines up to 725 psi.
Suits Fixed Compressor Installations
The valve suits fixed compressor installations needing reliable, unattended condensate removal at 115 V supply. Facilities without 115 V AC power or requiring drain rates above 75 gpm should look elsewhere. Systems operating outside the 14 to 140 degrees F range or above 725 psi need a different specification. Buyers needing a larger port size or a different voltage must select another model.
Highlights
- Automated condensate removal with adjustable cycle from .5 minute to 99 hours
- Handles high flow at 75 gpm drain rate through 1/2 in NPT ports
- Operates reliably up to 725 psi maximum pressure in compressed air systems
- IP65 brass enclosure resists dust and water jets in harsh environments
- Ready to install with included 6 ft power cord for 115 V supply
Specifications
| Brand | SPEEDAIRE |
|---|
Questions about this item
What pipe size does the 1/2" NPT auto drain valve require for mounting?
The valve uses a 1/2 inch NPT pipe connection for installation.
How is the drain cycle set on the timed electric auto drain valve, and what step is often missed?
Adjust the cycle between 0.5 minute and 99 hours and the purge time between 0.5 second and 10 seconds; the step often missed is confirming the 115 V, 60 Hz supply matches the 0.3 A draw.
When should the brass body or IP65 enclosure be inspected or replaced on this auto drain valve?
Inspect the brass body and IP65 enclosure if operating near the 725 psi limit or outside the 14 to 140 degrees F range, and replace if corrosion or seal wear appears.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.



