Drain-All Pneumatic Zero Air Loss Automatic Tank Drain, 1/2 in NPT - DH50 and RH50 Rust Handler

Drain-All pneumatic automatic tank drains in 1/2 in NPT. These are the heavy end of the condensate drain range: a level sensing, zero air loss drain that dumps the water and closes again without blowing compressed air down the sewer with it.

A timer drain throws away air on every cycle whether there is water in the tank or not, and on a plant sized receiver that is real money across a year. A zero air loss drain only opens when there is condensate to discharge. These are also pneumatically operated, which means no electrical supply to run and nothing to fail in a wet, cold or classified area.

Models

• S0910, Drain-All DH50-0LAAA: pneumatic zero air loss drain, 1/2 in NPT
• S0920, Drain-All RH50-0LAAA: the Rust Handler model, pneumatic, 1/2 in NPT

Specifications

• Connections: 1/2 in NPT inlet and outlet
• Operation: pneumatic, no electrical supply required
• Minimum operating pressure: 40 PSI
• Discharge rate: 1.5 GPM at 100 PSI
• Cycle time: 10 seconds
• Drain type: zero air loss

Check the maximum working pressure on the unit data plate against your receiver before installing. Published figures differ between sources and the data plate is the one that governs.

Where these go

Receiver tanks, wet tanks ahead of a dryer, aftercooler separators and drip legs on larger systems: anywhere the condensate volume is more than a small electronic drain wants to handle and where losing air on every cycle matters. The 1/2 in port also keeps them from blocking the way a 1/4 in drain does on a dirty old receiver.

Installation notes

Pipe the drain from the lowest point of the tank with a full size take off and an isolating ball valve ahead of it, so the drain can be serviced without blowing the receiver down. Keep the discharge line short and sloped, and do not reduce it below the outlet size. Condensate off a reciprocating compressor is oily and acidic, so it belongs in an oil water separator rather than straight into a floor drain.

Related parts

We also stock electronic automatic tank drains in 1/4 in through 1 in NPT, Kingston and Conrader pneumatic drains, float drains, pull cable drains, pet cock drains and the Champion automatic drain repair kit.

Not sure which model

Tell us what is on the machine now, the receiver size and whether the condensate is carrying rust, and the Warthog Air Compressor Store team will confirm which of the two you want before you order.

Drain-All DH50-0LAAA and RH50-0LAAA Rust Handler pneumatic zero air loss automatic tank drains in 1/2 in NPT for air receivers and wet tanks.