Description
ZEKS OSB1250PG OSB™ Oil/Water Separator for Compressed Air Condensate (Polyglycol) – 751–1,250 SCFM
The ZEKS OSB1250PG OSB™ Oil/Water Separator helps separate oil from water in compressed-air condensate collected from common treatment points such as dryers, filters, aftercoolers, receivers, and drains. This model is sized for 751–1,250 SCFM total compressor capacity and is intended for systems using polyglycol (PG) lubricants. Always follow applicable discharge and disposal requirements for oily condensate.
Technical Details
- Model: OSB1250PG (OSB™ Series Oil/Water Separator)
- Compressor Capacity Range: 751 to 1250 SCFM
- Oil Absorption Capacity: 6.6 gallons
- Compressor Lubricant Compatibility: Polyglycol (PG) compressor lubricants
- Connections: Inlet: (2) 1/2" BSPP; Outlet: 1" BSPP
- Shipping Dimensions (L × W × H): 38.2" × 15.0" × 35.4"
- Shipping Weight: 106 lb
Key Highlights & Benefits
- Size by System Capacity: Match the separator to your total compressor capacity (SCFM) for the condensate load you expect.
- Choose the Correct Lubricant Type: PG models are intended for polyglycol lubricants.
- Oil Absorption Capacity: 6.6 gallons of oil absorption capacity helps inform expected service frequency based on your condensate conditions.
- Multiple Inlet Options (Select Models): Models with dual 1/2" inlets can simplify routing condensate from multiple collection points.
Sizing & Selection Guidance
- Total System SCFM: Add up the rated capacity (SCFM) of all compressors feeding the system and choose the OSB model whose SCFM range covers that total.
- Lubricant Matters: If your compressor uses polyglycol lubricant, select an OSB‑PG model.
- Plan for Maintenance: Higher condensate and oil carryover may shorten service intervals—use the oil absorption capacity as a practical reference point.
Replacement Element Kit (When Service Is Required)
- Kit Item Number: 684770
- List Price (Reference): $1,816
- Kit Shipping Dimensions: 29" × 16" × 20"
- Kit Shipping Weight: 50 lb
- What’s Included: Replacement element kits include two pre-absorption elements and carbon finishing elements.
FAQs
▶️ Question: How do I size the OSB1250PG oil/water separator for my compressed air system?
Answer: Size OSB separators by total compressor capacity (SCFM). The OSB1250PG is intended for 751 to 1250 SCFM. If you have multiple compressors feeding the same system, add their SCFM ratings together and select a model whose range covers that total.
▶️ Question: What does “oil absorption capacity” mean?
Answer: Oil absorption capacity is the amount of oil the separator media can retain before service is required. The OSB1250PG is rated for 6.6 gallons. Actual service life depends on condensate volume, lubricant type, and how much oil carryover is present.
▶️ Question: Do I need a standard OSB model or an OSB‑PG model?
Answer: Choose an OSB‑PG model if your compressor uses polyglycol lubricant. Use a standard OSB model for mineral, semi-synthetic, or fully-synthetic compressor lubricants.
▶️ Question: Where is an OSB separator typically installed?
Answer: OSB separators are typically installed on the discharge line from condensate drains serving equipment such as refrigerated dryers, desiccant dryers, coalescing filters, aftercoolers, receivers, and other condensate collection points. Install so it’s easy to inspect and service, and route discharge in accordance with local requirements.
▶️ Question: Are replacement elements available for the OSB1250PG?
Answer: Yes. The listed replacement element kit is 684770.
▶️ Question: How should spent media or oily residue be handled?
Answer: Handle spent media and oily residue in accordance with applicable federal, state, and local regulations. Discharge requirements vary by facility and jurisdiction, so confirm your site’s environmental compliance process before disposal.
