1 min read

Hy-Pro's Product Spotlight: Compact Offline Filter (COF)

By Brad Bainbridge on Thu, Apr. 01, 2021

Hy-Pro's Compact Offline Filter

Our newest and smallest unit yet, the Compact Offline Filter is ableCOF_Group-2 to fit where no other filtration equipment can. Ideal for smaller systems or where a larger offline system wouldn't fit, this solution can be permanently installed or made portable for ease of use. 

Topics: hydraulic fluid contamination dirt Water Contamination hydraulic filters hydraulic and lubrication filter types Gearbox filtration new oil micro-dieseling fluid samples filtration oil analysis hydraulic pump filters hydraulic valve FSL liquid conditioning station duplex low-pressure oxidation Noria NSD hydraulic cellulose media compressor Reliable Plant filter comparison lube oil aluminum refinery conditioning turbine oil glass media
2 min read

Understanding ISO Codes

By Brad Bainbridge on Thu, Feb. 25, 2021

ISO Cleanliness Codes Explained

The ISO Cleanliness Code (per ISO4406-1999) is used to quantify particulate contamination levels per milliliter of fluid at 3 sizes - 4µ, 6µ, and 14µ. It is expressed in 3 numbers (example 19/17/14) where each number represents a contaminant level code for the correlating particle size. The code includes all particles of the specified size and larger.Screen Shot 2021-02-23 at 2.50.37 PMIt is important to note that each time a code increases, the quantity range of particles is doubling. Inversely, as a code decreases by one the contaminant level is cut in half. 

Topics: hydraulic fluid dirt hydraulic filters Gearbox filtration vacuum dehydration filter housing sizing plastic injection molding manufacturer oil darkening mining fluid samples total systems cleanliness metal analysis filter performance paper mill fluid transfer filters hydraulic valve coalesce technology filter cart cleanliness COD hydraulic oil gearbox duplex high-pressure compressor filter elements lube oil turbine oil desiccant demulsibility
2 min read

Hydraulic Valve Performance Test Stands and Clean Oil

By Brad Bainbridge on Tue, Nov. 29, 2016

The Application

A hydraulic valve manufacturer required pristine fluid (< 14/12/9) to test flow across an 80-micron orifice on their test stand. Gross amounts of contamination in the fluid would skew the test results, invalidating any data collected.

The system held 100 l (26.4 gal ) of ISO VG 32 fluid with a flow rate of 25 lpm (6.6 gpm ).Through observing the manufacturer’s sampling practices, discussing fluid handling best practices and interpreting their lab reports, three independent problems were identified:

Topics: ISO 4406 hydraulic valve samples hydraulic oil

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