Drain Valves

Drain Valves

Condensate Management products we sell:

  • PolySep Oil Water Separators
  • Electronic No-Loss Drains (ENLD)
  • Pnuematic No-Loss Drains (PNLD)
  • Electronic Drain Valves


What is air compression condensate?

In an air compression environment, condensate is a by-product derived from the cooling and dehydration process that compressed air generates and how it’s treated. Some types of air compressors use a small amount of lubrication in their system, which can enter into the air stream. This water/lubricant mixture produces and oily water mixture and must be treated before it can be disposed. Most states now consider air compressor condensate as a hazardous waste, so companies face tough new standards they must follow or they will be subject to stiff penalties for non-compliance. Proper separation equipment is necessary to keeping with state environmental laws and regulations.

One example of our condensate management products includes the Pnuematic No-Loss Drains (PNLD).

Drain Valve

Drain Valve

The newly enhanced PNLD II units are heavy-duty industrial drain valves that remove condensate without wasting compressed air.

The pneumatically-powered PNLD II requires no electricity, pre-settings, or manual intervention. Designed to complement all compressed air systems including compressors, filters, water separators, dryers, coolers and receivers, the PNLD II is easy to install and will not clog.

A unique air valve design uses magnetic force to ensure a positive opening and closing that prevents attraction of metal particulate. Then an innovative ball valve support-and-positioning system prevents side-loading which causes premature sealing failure around the valve stem. Finally, a rifle-drilled discharge porting ensures that scale and rust exits through a fully ported 1.3 cm (1/2 in) ball valve.

The result? PNLD II saves enough compressed air to pay for itself in six months or less.



  • 828 mL (28 oz) discharge
  • Handles compressed air systems from 2.8-849.5 m3/min (100-30,000 cfm
  • Fully pneumatic
  • Zero air loss
  • Low profile
  • Stainless steel float
  • Ideal for oil/water separators
  • Non-clogging ball valve
  • No strainers to clean
  • Operates on demand
  • Test button
  • Often saves enough compressed air to self-amortize in six months or less

PNLD II 28 Options (for Low and Medium Pressure Models)

  • High level alarm kit – 6.9 bar (100 psi)
  • Heater
  • All external nickel-plated parts
  • SS ball valve


  • 355 mL (12 oz) discharge
  • Handles compressed air systems from 0-11.3 m3/min (0-400 cfm)
  • Compact design
  • No fittings to change
  • 14 bar (200 psi) maximum operating pressure
  • Stainless steel float
  • Metal internal components
  • Fully pneumatic
  • No wasted air
  • Operates on demand
  • Test button

Visit our Resources page to download product brochures.


US Equipment / Arnel Compressor - Contact Us


Contact our sales department at (800) 255-4731 or email us at sales@usequipmentco.com if you have questions or do not see what you are looking for.