ElementRef

HYDAC · Betamicron 4 R · return line

1000 RN 025 BN4HC filter element: specifications & equivalents

The 1000 RN 025 BN4HC is a HYDAC return-line hydraulic filter element, built with bn/hc=betamicron® low collapse media, sized 160 × 398.8 mm OD × length (ID 90 mm), rated at 25 µm absolute (ßx(c) ≥ 1000). Verify against the current manufacturer data sheet before ordering.

Envelope OD × L 160 × 398.8 mm
Inside diameter 90 mm
Filtration rating 25 µm abs.
Beta rating ßx(c) ≥ 1000
Media BN/HC=Betamicron® Low Collapse
Collapse / burst 20 bar
Line type return
Catalog verified. Parameters extracted from the manufacturer’s electronic catalog / official interchange document and checked 2026-09-28. Confidence score 0.92.

Dimensions, ratings and seal compound are taken directly from the HYDAC electronic catalog (catalog.hydac.com). Outside diameter and length are converted from the inch values printed on the catalog page; verify against the current HYDAC data sheet before ordering.

Specification table

ParameterValue
Filter type return line
Media BN/HC=Betamicron® Low Collapse
Filtration rating 25 µm
Rating basis absolute
Beta ratio ßx(c) ≥ 1000
Outside diameter OD 160 mm
Inside diameter ID 90 mm
Length 398.8 mm
End caps open-ended cartridge element
Flow direction outside-in
Collapse / burst pressure 20 bar
Integral bypass valve none (housing/valve-dependent)
Seal material Nitrile (Buna-N)
Operating temperature -30 to 100 °C
Source catalog HYDAC Technology Corporation: HYDAC electronic product catalog (catalog.hydac.com)
Last verified2026-09-28

Sources: HYDAC Technology Corporation — HYDAC electronic product catalog (catalog.hydac.com) — accessed 2026-09-29.

HYDAC® and all model designations are trademarks of their respective owners, used here for identification only — ElementRef is an independent reference site, not an authorized HYDAC distributor.

Dimensions & series range

Outside diameter160 mm (6.299 in)
Inside diameter90 mm (3.543 in)
Overall length398.8 mm (15.701 in)

All 160×399 mm interchange elements →

Cross references & equivalents

Equivalent modelBrandMatch levelNote
↔ 01.NR 1000.25VG.10.B.P.-Eaton / InternormenpartialEaton's filtration cross-reference lists 1000RN025BN4HC (Hydac) as an interchange for 01.NR 1000.25VG.10.B.P.-. Envelope cross-reference; verify micron grade, delta-P rating and seal configuration before substituting.

Interchange levels: full catalog-confirmed drop-in · partial verify parameters · verify manual confirmation required. Links resolve to the equivalent model's specification page where available.

How the 1000 RN 025 BN4HC model number is decoded

  • 1000 RN 025 BN4HCHYDAC Type RN filter element ordering code per the HYDAC electronic catalog (s16).
  • BN/HC=Betamicron® Low CollapseFilter media and collapse family as printed in the catalog.
  • 25 µmAbsolute filter rating per the HYDAC catalog.
  • ßx(c) ≥ 1000Beta ratio rating as printed in the catalog.
  • 160 mmOutside diameter.
  • 90 mmInner diameter.
  • 398.8 mmElement length.
  • 20 barElement collapse (differential pressure) rating.
  • Nitrile (Buna-N)Seal compound.

Typical equipment & applications

  • Return-line filtration for HYDAC RF/RFM and equivalent housings
  • Industrial and mobile hydraulic systems

Selection pitfalls — read before you substitute

  • A return-line element is not a pressure-line element: return cartridges (BN4HC low-collapse) tolerate roughly 20 bar differential, while BH4HC pressure executions are rated to 210 bar. Installing a low-collapse element in a pressure housing can rupture the media on cold-start spikes.
  • This element has no integral bypass — opening pressure is set by the housing’s reusable bypass valve. Confirm the valve setting (commonly 3.4 bar) is present before fitting.
  • “10 µm nominal” and “12 µm at β1000” can describe the very same media — one is reported at β≥200, the other at β≥1000 per ISO 16889. Compare ratings at the same Beta test point, not just the printed micron number.
  • Nitrile (NBR) seals are standard for mineral hydraulic oil but fail early in some phosphate-ester fluids and at sustained high temperature; verify seal compound against the fluid data sheet (fluorocarbon/Viton executions may be required).
  • End-cap geometry and the number/position of O-rings block interchange even when OD and length match — visually compare end caps before fitting, especially with aftermarket cartridges.

Frequently asked questions

What are the dimensions of the 1000 RN 025 BN4HC filter element?
The published envelope is 160 mm OD × 398.8 mm length with a 90 mm inside diameter (6.299 × 15.701 in × 3.543 in ID). Confirm against the housing drawing before ordering.
What micron rating does 1000 RN 025 BN4HC use?
This element is rated 25 µm absolute — ßx(c) ≥ 1000. Always compare Beta ratings at the same test point: two brands may print different micron numbers for the same physical grade.
What replaces the 1000 RN 025 BN4HC filter element?
1 partial match(es) requiring parameter review
How do I read the 1000 RN 025 BN4HC part number?
See the designation decoder above: each segment of 1000RN025BN4HC encodes size, line type, filtration grade and media/collapse execution.
Is a same-envelope aftermarket element always a drop-in replacement?
No. Matching OD and length only proves the cartridge fits the bowl. End-cap style, seal compound, micron/Beta rating, collapse pressure and bypass configuration must also match; the table above tags every equivalent as full, partial or verify for exactly this reason.
How often should a hydraulic return-line element be replaced?
Replace at the housing manufacturer’s recommended differential-pressure setting (commonly signalled by a clogging indicator), or on a time-based service interval when no indicator is fitted — never wait for bypass to open continuously, because unfiltered oil then reaches the valves.

Same-envelope elements from other brands

View full interchange →

These 51 catalog element(s) share the 160×399 mm envelope. Envelope match alone does not guarantee interchangeability — compare micron/Beta, seals and collapse rating.

K7.1640-66K8 ARGO-HYTOS · 10 µm 1000 RN 003 BN4HC HYDAC · 3 µm 1000 RN 003 BN4HC /-V HYDAC · 3 µm 1000 RN 006 BN4HC HYDAC · 6 µm 1000 RN 006 BN4HC /-V HYDAC · 6 µm 1000 RN 010 BN4HC HYDAC · 10 µm 1000 RN 010 BN4HC /-V HYDAC · 10 µm 1000 RN 025 BN4HC /-V HYDAC · 25 µm 7.0145 R 06 BN4 HYDAC · 6 µm CU900A03ANP01 MP Filtri · 3 µm

Other models in the Betamicron 4 R series

All 929 →
0030 R 003 BN4HC 36×107 mm · 3 µm 0030 R 005 BN4HC 36×107 mm · 5 µm 0030 R 010 BN4HC 36×107 mm · 10 µm 0030 R 010 BN4HC /-B6 36×107 mm · 10 µm 0030 R 010 P/HC 36×107 mm · 10 µm 0030 R 010 P/HC /-B6 36×107 mm · 10 µm 0030 R 020 BN4HC 36×107 mm · 20 µm 0030 R 020 P/HC 36×107 mm · 20 µm 0030 R 025 W/HC 36×107 mm · 25 µm 0030 R 050 W/HC 36×107 mm · 50 µm

Reviewed & verified by the ElementRef engineering desk against HYDAC Technology Corporation on 2026-09-28. Read our editorial & correction policy.