Page 29 - Catalog filters DONALDSON

Auto Parts / Shoptalk

HYDRAULIC FILTRATION

How Big is a Micron? Minimize Water in Hydraulic

Systems
Micron Sizes of Familiar Particles Water has a way of sneaking into hydraulic circuits
and that means trouble.
Grain of table salt 100µm
Human hair 80µm Donaldson T.R.A.P. breathers actually exhale Filter Performance Alternatives

Lower limit of visibility 40µm the moisture back out, which means you won’t
need to change the breather due to water
White blood cell 25µm
saturation … unlike desiccant filters that require
Talcum powder 10µm frequent change-out.
Red blood cell 8µm
Bacteria 2µm Like the name suggests, it TRAPS water before it
gets in, yet doesn’t restrict air flow, and lets your
Silt <5µm hydraulic reservoir breathe.

Features and Benefits
How Big is a Micron? • Minimize water in your system - T.R.A.P.
breather strips moisture from the incoming
air, allowing only dry air to enter the hydraulic Shoptalk
circuits
• Maximize system uptime - Patented T.R.A.P.
media regenerates its water holding capacity
for longer service life
40µm • Hydraulic reservoir can breathe - The T.R.A.P.
80µm
doesn’t restrict air flow

25µm

100µm Filter Maintenance Kits
10µm
2µm

T.R.A.P. Parts Table
Max. Flow
Connection CFM Material Part No. Indicator Style*
1" NPT 45 cfm Glass-filled ABS P566151 Opt'l Mechanical
1" NPT 45 cfm Glass-filled ABS P564669 Electronic
3/4" BSP 25 cfm Epoxy coated steel P566037 No
3/4" NPT 25 cfm Epoxy coated steel P565857 Opt'l Mechanical
Bayonet 25 cfm Epoxy coated steel P565858 No
Bayonet 45 cfm Glass-filled ABS P566156 No
Bayonet 45 cfm Glass-filled ABS P565616 Electronic
Mechanical Indicator Kit - P566168 Liquid Filtration Heads & Filters
Install kit between reservoir and T.R.A.P. breather. Lock-up style
indicator with manual reset. Highly visible, bright red band shows when
restriction limit is reached. Indicator setting, 20" H2O.

Ref: Brochure F111221

27 / Auto Parts

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