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HYDAC · Betamicron 4 D/DN · pressure line

0330 D 020 BH4HC filter element: specifications & equivalents

The 0330 D 020 BH4HC is a HYDAC pressure-line hydraulic filter element, built with betamicron 4 microglass, high-collapse (210 bar / 3045 psi) media, rated at 20 µm absolute (βx(c) ≥ 1000 per ISO 16889). Verify against the current manufacturer data sheet before ordering.

Filtration rating 20 µm abs.
Beta rating β x(c) ≥ 1000 per ISO 16889
Media Betamicron 4 microglass, high-collapse (210 bar / 3045 psi)
Collapse / burst 210 bar
Line type pressure
Partially verified. Fit and grade trace to an official interchange document; dimensional values are compiled from 0 aftermarket listing(s) and must be confirmed against the manufacturer housing drawing. Confidence score 0.72.

Envelope dimensions (OD/ID/length) are pending extraction from the HYDAC electronic catalog (s2); grade, media, collapse and seal ratings are confirmed. Verify the housing drawing before ordering.

Specification table

ParameterValue
Filter type pressure line
Media Betamicron 4 microglass, high-collapse (210 bar / 3045 psi)
Filtration rating 20 µm
Rating basis absolute
Beta ratio βx(c) ≥ 1000 per ISO 16889
Flow direction outside-in
Collapse / burst pressure 210 bar
Integral bypass valve none (housing/valve-dependent)
Seal material Nitrile (NBR)
Operating temperature -30 to 100 °C
Source catalog HYDAC Technology Corporation: HYDAC Filter Elements
HYDAC / Airline Hydraulics: Betamicron Filter Elements
Last verified2026-09-27

Sources: HYDAC Technology Corporation — HYDAC Filter Elements · HYDAC / Airline Hydraulics — Betamicron Filter Elements — accessed 2026-09-26.

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.

Cross references & equivalents

No catalog-verified cross references yet. This model is in the manual verification queue — request a verified equivalent.

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 0330 D 020 BH4HC model number is decoded

  • 0330Element size code (0330) for the HYDAC DF/DFF pressure-filter housing family.
  • DPressure-line element for HYDAC DF/DFF pressure filter housings.
  • 02020 µm absolute class per the HYDAC electronic catalog (s2).
  • BH4HCBetamicron 4 microglass, high-collapse (210 bar / 3045 psi)

Typical equipment & applications

  • Pressure-line hydraulic filters upstream of control valves
  • High-differential-pressure industrial hydraulic circuits
  • Hydraulic power units for steel, paper and power generation

Selection pitfalls — read before you substitute

  • “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 micron rating does 0330 D 020 BH4HC use?
This element is rated 20 µm absolute — βx(c) ≥ 1000 per ISO 16889. Always compare Beta ratings at the same test point: two brands may print different micron numbers for the same physical grade.
What replaces the 0330 D 020 BH4HC filter element?
Cross references are being verified for this model — use the inquiry form and the engineering desk will confirm equivalents.
How do I read the 0330 D 020 BH4HC part number?
See the designation decoder above: each segment of 0330D020BH4HC 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.

Other models in the Betamicron 4 D/DN series

All 90 →
0240 D 003 BH4HC 3 µm 0240 D 005 BH4HC 5 µm 0240 D 006 BH4HC 6 µm 0240 D 010 BH4HC 10 µm 0240 D 020 BH4HC 20 µm 0250 DN 003 BH4HC 80×250 mm · 3 µm 0250 DN 005 BH4HC 80×250 mm · 5 µm 0250 DN 006 BH4HC 80×250 mm · 6 µm 0250 DN 010 BH4HC 80×250 mm · 10 µm 0250 DN 020 BH4HC 80×250 mm · 20 µm

Reviewed & verified by the ElementRef engineering desk against HYDAC Technology Corporation and HYDAC / Airline Hydraulics on 2026-09-27. Read our editorial & correction policy.