Quality Manufacturing

In-house designed separators built to last, with proven filter media

Expert Support

Decades of real-world condensate management knowledge, freely shared

Same-Day Shipping

Comprehensive stock — most items dispatched the same day you order

Competitive Pricing

Cost-effective solutions for businesses of every size

Our Range

Products Built for the Job

From compact units for small compressors to large-scale IBC-based systems — STELSEP has a solution for every condensate challenge.

Oil/Water Separators
Oil/Water Separators

The full CSR and CS75 range — from 75 cfm up to 7,000 cfm. Simple, elegant, no moving parts. Cartridge-based servicing. Wall or floor mountable.

  • CS75 — up to 75 cfm / 15 hp compressors
  • CSR range — 150 to 3,000 cfm
  • IBC range — 3,500 & 7,000 cfm
View Separators
OWS Service Kits
OWS Service Kits

Aftermarket service kits to fit a wide range of OWS brands — including BEKO OWAMAT, Ultrafilter, Domnick Hunter, Jorc, Atlas Copco, and Sepura.

  • Proprietary PP wool/shred media
  • Longer service life than activated carbon
  • Cleaner, lighter, faster to service
View Service Kits
Condensate Drains
Condensate Drains

Timer-operated and intelligent zero-loss drains — from simple solenoid types to level-sensing units that eliminate costly compressed air waste.

  • ZL5000, ZL1300, ZL310 zero-loss range
  • TD15 A/B timer-controlled drains
  • Reduce wasted air, reduce running costs
View Drains
See All Products & Accessories

Why STELSEP?

Proud of Our Quality, Service & Cost-Effectiveness

STELSEP probably has more combined, real-world experience of condensate management than anybody else — and we're happy to share it with our partners.

No Moving Parts

Simple, cost-effective, leak-free design — nothing to break or adjust.

Fast Servicing

Cartridge-type service packs — quick, clean, dust-free replacement.

Minimal Footprint

Compact units require minimal floor space — easy to fit any plant room.

R&D Laboratory

In-house lab drives continuous media and process improvement.

Regulatory Alert

Discharging any condensate to a storm drain, stream, or groundwater is NOT permitted. Non-compliance carries serious environmental and legal consequences.

The scale of the problem

A single 25 hp compressor running 8,000+ hours per year generates approximately 265 gallons of condensate, containing over 2.5 gallons of oil. That quantity of oil is sufficient to impact 20–25 acres of surface water.

265
gallons of condensate / year
2.5+
gallons of oil contained
25
acres of surface water at risk

Ready to solve your condensate challenge?

Contact us today — we'll help you select the right separator, service kit or drain for your system, and get it to you fast.

Contact Us Download Brochures

Support

Lean on us — we're here for you

Downloads

Price lists, brochures, installation & maintenance guides, legislation, terms of trading and returns policy.

Go to Downloads
Laboratory Services

Send us a condensate sample and receive a hydrocarbon content analysis report within 5 working days. Convenient, affordable, fast.

Learn More
Training & Field Support

Our experienced team is on hand to provide technical guidance and field support — we share our knowledge freely with our distribution partners.

Get Support