Oil separator
2 month agoUniversal Oil Separator Element for Screw Air Compressors
The element is a cartridge with a layered structure. A rigid outer cage holds its shape under pressure, and the inner media is formed from fine glass fiber. As the air-oil mist passes through, the fibers catch the microscopic droplets, make them collide and grow, and gravity pulls the larger drops down for return to the oil circuit. A matching seal kit keeps every joint tight, so no unfiltered air bypasses the media and no oil weeps from the tank.
As a universal air oil separator element, it is stocked by model range and by the OEM numbers it replaces. A distributor who keeps a few sizes on the shelf can cover most of the machines in their market, from small 5.5 kW workshop units up to large 250 kW industrial compressors. Selection is done the same way every time: match the old part number, or measure the outer diameter, height, and thread type of the element currently installed.
For buyers who run a maintenance business or a parts shop, the appeal is simple. One source for replacement oil separator for screw air compressor across many brands means fewer suppliers to manage and faster turnaround for customers who call with a broken machine. Aftermarket air compressor oil separator parts like this one are made to meet the same separation standards as the originals, at a price that leaves room for the distributor.

Advantages
- Cross-brand compatibility. Built to standard mounting sizes, so it replaces original elements across most screw compressor brands, not only OSMAN machines.
- Easy to select. Order by OEM part number or by three measurements: outer diameter, height, and thread. No guesswork at the counter.
- Clean discharge air. Fine glass fiber media keeps oil carryover low, protecting dryers, filters, and downstream tools.
- Low pressure loss when new. The media density is chosen so the element does not add unnecessary energy cost while it is fresh.
- Complete seal kit included. Every element ships with the gaskets and O-rings it needs, so the service bay does not hunt for parts.
- Broad power coverage. The range spans 5.5 kW to 250 kW screw compressors.
- Distributor friendly. Common sizes are kept in stock and priced for resale.


Why Choose Us
- Factory producer. OSMAN manufactures screw compressors and their consumable parts in Shenzhen, so the element is made by a compressor builder, not a trading house.
- Confirm before dispatch. Send the old part number or your measurements. If we cannot match it, we say so before you place the order.
- Consistent quality. Production follows the same ISO 9001 documented process as the OSMAN compressor line, with fit and sealing checks on each batch.
- Stock for fast movers. Popular sizes ship quickly, and slower sizes are produced on short lead times.
- Export experience. We ship worldwide with proper packing and documentation for overseas resellers.
- Direct support. Technical questions get an answer from the factory within one working day.
FAQ
Q1: Will this element work on my compressor if it is not an OSMAN machine?
A: In most cases, yes. The universal range is built to standard separator mounting sizes used across screw compressor brands. Send us the model of your machine and the number on the old element, and we confirm the match before shipping.
Q2: How do I choose the right size?
A: Three ways. Quote the original part number, give us the machine brand and model, or measure the installed element: outer diameter, height, and the thread type of the center hole. Any one of these is enough for us to identify the right part.
Q3: How often does a separator element need replacing?
A: As a general rule, every 2,000 to 4,000 running hours, depending on load and operating conditions. The surest signal is pressure differential: when it climbs well above the value for a new element, it is time to change. Your compressor manual gives the exact figure.
Q4: What separation performance can I expect?
A: A healthy element keeps oil carryover down to a few parts per million in the discharge air. That level protects pneumatic tools, dryers, and sensitive production processes from oil contamination.
Q5: What if the element does not fit or fails early?
A: Because we confirm the match before dispatch, fitting problems are rare. If one still occurs, contact us with the order number and the machine details. Defective parts are replaced or refunded according to our warranty terms.
Q6: Do you support distributors who want to stock this range?
A: Yes. We offer quantity pricing, can hold standing stock for repeat orders, and will supply the interchange lists that let your counter staff cross-reference brands. This is a regular business model for us, not an occasional request.
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