HYDAC · Betamicron 4 D/DN · pressure line

0990 DN 003 BH4HC filter element: specifications & equivalents

Q: What micron rating does 0990 DN 003 BH4HC use?

This element is rated 3 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.

The 0990 DN 003 BH4HC is a HYDAC pressure-line hydraulic filter element, built with betamicron 4 microglass, high-collapse (210 bar / 3045 psi) media, rated at 3 µm absolute (βx(c) ≥ 1000 per ISO 16889). Verify against the current manufacturer data sheet before ordering.

Filtration rating 3 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

Parameter	Value
Filter type	pressure line
Media	Betamicron 4 microglass, high-collapse (210 bar / 3045 psi)
Filtration rating	3 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 verified	2026-09-28

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.

Full chart: HYDAC cross reference chart →

How the 0990 DN 003 BH4HC model number is decoded

0990Element size code (0990) for the DIN 24550 housing family.
DNDIN 24550 standard envelope element.
0033 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

Line type is not interchangeable: return-line cartridges are low-collapse executions that typically tolerate roughly 10–20 bar differential, while pressure-line elements are commonly rated 100–210 bar. Installing a low-collapse element in a pressure housing can rupture the media on cold-start spikes.
“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.
This execution uses nitrile (nbr) seals — verify the compound against the fluid data sheet: standard nitrile (NBR) can fail early in phosphate-ester fluids and at sustained high temperature, where fluorocarbon/Viton executions may be required.
Fine 3 µm media loads faster and runs at a higher cold Δp than coarser grades — only downgrade cleanliness targets if the system ISO 4406 code allows it.

Frequently asked questions

What micron rating does 0990 DN 003 BH4HC use?

This element is rated 3 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 0990 DN 003 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 0990 DN 003 BH4HC part number?

See the designation decoder above: each segment of 0990DN003BH4HC encodes size, line type, filtration grade and media/collapse execution.

How often should a hydraulic filter 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 897 (list page 1/2) →

0015 D 010 BN4HC 35×42 mm · 10 µm 0030 D 003 BH4HC 36×94 mm · 3 µm 0030 D 003 BH4HC /-V 36×94 mm · 3 µm 0030 D 003 BN4HC 36×94 mm · 3 µm 0030 D 003 BN4HC /-V 36×94 mm · 3 µm 0030 D 005 BH4HC 36×94 mm · 5 µm 0030 D 005 BH4HC /-V 36×94 mm · 5 µm 0030 D 005 BN4HC 36×94 mm · 5 µm 0030 D 010 BH4HC 36×94 mm · 10 µm 0030 D 010 BN4HC 36×94 mm · 10 µm

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