About the B407701 oil filter

Kenrax manufactures the B407701 — an OEM-grade oil filter built for Elgi screw compressors. Elgi screw compressors are widely deployed in Indian plants, and their service cycles are driven by reliable, spec-true elements rather than part-name fitment. This element is made to the original specification so it installs exactly where the OEM part did, with the same media grade, dimensions, and sealing.

Enhance the performance and longevity of your Elgi compressors with our high-quality Oil Filter (Part Number: B407701). Designed to meet or exceed OEM specifications, these Oil Filter ensure optimal efficiency and reliability. Specifically engineered for Elgi compressors, they provide superior filtration, protecting your equipment from contaminants and wear. Each Oil Filter undergoes comprehensive quality control to deliver consistent and dependable performance. Benefit from competitive pricing, bulk order discounts, and prompt delivery for all your compressor spares.

What the B407701 does in your Elgi compressor

The oil filter protects the lubrication circuit in an oil-injected screw compressor. Oil does three jobs at once — it cools the air end, seals the running clearance between the rotors, and conveys away wear particles. The oil filter stops those particles circulating back into the bearings and rotors. A loaded or bypassing oil filter is one of the quietest causes of premature wear in the entire machine, because it rarely produces a loud symptom before the damage is done.

The B407701 is a scheduled-service consumable, not a repair item. Fitted as part of the Elgi machine's standard maintenance, it keeps the Elgi compressor inside its design operating band between services.

When to replace this element

• Change together with every oil change, typically 1000, 2000, or 4000 hours per the OEM manual.

• Stand-alone change is never recommended — the element and the fill should move as one.

• After any mechanical repair, run briefly then change oil and oil filter again to flush debris.

Signs it needs replacement

Replace on any of the above regardless of hour count. For this part, keeping a fresh element in stock before the interval arrives is the single cheapest insurance policy on the machine.

• A rising differential pressure across the oil filter on the gauge or controller.
• Lower oil pressure available at the bearings for the same machine load.
• Discharge temperature climbing above the machine's healthy baseline.
• Evidence of oil bypassing (unfiltered oil circulating) during normal running.

Direct-fit compatibility for Elgi

The B407701 is cross-referenced for these Elgi OEM part numbers and models:

• Dalgakiran : Dalgakiran DVK 270

Fitting and verification

• Check the thread, sealing ring, and anti-drainback arrangement against your old element.

• Pre-fill the new element with oil where the design allows, before screwing it on.

• Torque the element to spec — overtightening deforms the seal, under-tightening leaks.

• Note the fresh-element differential pressure as the baseline for the next service.

Ordering the B407701

For the B407701, order quantities and dispatch times are confirmed on WhatsApp — send the OEM number from your current element and we verify the match before shipping.