HYDAC · Betamicron 4 D/DN · pressure line

0400 DN 100 W/HC filter element: specifications & equivalents

Q: What are the dimensions of the 0400 DN 100 W/HC filter element?

The published envelope is 78.7 mm OD × 398.8 mm length with a 40.1 mm inside diameter (3.098 × 15.701 in × 1.579 in ID). Confirm against the housing drawing before ordering.

Q: What micron rating does 0400 DN 100 W/HC use?

This element is rated 100 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.

The 0400 DN 100 W/HC is a HYDAC pressure-line hydraulic filter element, built with w/hc=stainless steel wire mesh media, sized 78.7 × 398.8 mm OD × length (ID 40.1 mm), rated at 100 µm absolute (ßx(c) ≥ 1000). Verify against the current manufacturer data sheet before ordering.

Envelope OD × L 78.7 × 398.8 mm

Inside diameter 40.1 mm

Filtration rating 100 µm abs.

Beta rating ßx(c) ≥ 1000

Media W/HC=Stainless Steel Wire Mesh

Collapse / burst 20 bar

Line type pressure

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

Parameter	Value
Filter type	pressure line
Media	W/HC=Stainless Steel Wire Mesh
Filtration rating	100 µm
Rating basis	absolute
Beta ratio	ßx(c) ≥ 1000
Outside diameter OD	78.7 mm
Inside diameter ID	40.1 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 verified	2026-09-28

Sources: HYDAC Technology Corporation — HYDAC electronic product catalog (catalog.hydac.com) — accessed 2026-10-16.

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.

Dimensional drawing

Reference drawing generated from the source values cited on this page — nominal envelope, schematic section, not a manufacturer drawing. The PDF is A3 landscape and vector; the PNG is sized for a WhatsApp preview. Confirm thread, end caps, seal compound and micron/Beta grade against the original element before ordering.

Dimensions & series range

Outside diameter	78.7 mm (3.098 in)
Inside diameter	40.1 mm (1.579 in)
Overall length	398.8 mm (15.701 in)

All 79×399 mm interchange elements →

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 0400 DN 100 W/HC model number is decoded

0400 DN 100 W/HCHYDAC Type DN filter element ordering code per the HYDAC electronic catalog (s16).
W/HC=Stainless Steel Wire MeshFilter media and collapse family as printed in the catalog.
100 µmAbsolute filter rating per the HYDAC catalog.
ßx(c) ≥ 1000Beta ratio rating as printed in the catalog.
78.7 mmOutside diameter.
40.1 mmInner diameter.
398.8 mmElement length.
20 barElement collapse (differential pressure) rating.
Nitrile (Buna-N)Seal compound.

Typical equipment & applications

Pressure-line filtration for HYDAC DF/DFF and equivalent housings
Industrial and mobile hydraulic systems

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 (buna-n) 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.
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 0400 DN 100 W/HC filter element?

The published envelope is 78.7 mm OD × 398.8 mm length with a 40.1 mm inside diameter (3.098 × 15.701 in × 1.579 in ID). Confirm against the housing drawing before ordering.

What micron rating does 0400 DN 100 W/HC use?

This element is rated 100 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 0400 DN 100 W/HC 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 0400 DN 100 W/HC part number?

See the designation decoder above: each segment of 0400DN100WHC 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 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.

Same-envelope elements from other brands

View full interchange →

These 31 catalog element(s) share the 79×399 mm envelope. Envelope match alone does not guarantee interchangeability — compare micron/Beta, seals and collapse rating.

0400 DN 003 BH4HC HYDAC · 3 µm 0400 DN 003 BH4HC /-SO882 HYDAC · 3 µm 0400 DN 003 BH4HC /-V-SFREE-SO882 HYDAC · 3 µm 0400 DN 003 BH4HC /-V-SO882 HYDAC · 3 µm 0400 DN 003 BN4HC HYDAC · 3 µm 0400 DN 003 BN4HC /-SO882 HYDAC · 3 µm 0400 DN 003 BN4HC /-V-SO882 HYDAC · 3 µm 0400 DN 006 BH4HC HYDAC · 6 µm 0400 DN 006 BH4HC /-SO882 HYDAC · 6 µm 0400 DN 006 BH4HC /-V-SO882 HYDAC · 6 µm

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 on 2026-09-28. Read our editorial & correction policy.