UH310 Series High Pressure Hydraulic Filter Elements

The UH310 series provides consistent performance under cyclic flow conditions. Below are the comprehensive specifications for the Ayater UH310 replacement series:

Housing pressure drop is directly proportional to specific gravity.Element Pressure Drop

 

310 Series Filter Elements – bard/1000 L/min (psid/US gpm)

Length Code	AZ	AP	AN	AS	AT
08	085.52 (0.302)	2.30 (0.126)	1.82 (0.100)	1.32 (0.072)	0.82 (0.045)
13	3.31 (0.182)	1.38 (0.076)	1.09 (0.060)	0.79 (0.043)	0.49 (0.027)
20	2.18 (0.120)	0.91 (0.050)	0.72 (0.040)	0.52 (0.029)	0.33 (0.018)
40	1.10 (0.060)	0.46 (0.025)	0.36 (0.020)	0.26 (0.014)	0.16 (0.009)

Multiply actual flow rate times factor in table below to determine pressure drop with fluid at 32 cSt (150 SUS), 0.9 S.G. Correct for other fluids by multiplying new viscosity in cSt/32 (SUS/150) x new S.G./0.9. Note: factors are per 1000 L/min and per 1 US gpm

Sample ΔP calculation

UH310 Series 13" length housing with G24 (1 1/2"SAE)) split flange ports using AN grade media. Operating conditions 300 L/min flow rate using a hydraulic fluid of 50 cSt and specific gravity (s.g.) 1.2.
Total Filter ΔP
= ΔP housing + ΔP element
= (0.33 x 1.2/0.9) bard (housing)
+ ((300 x 1.09/1000) x 50/32 x 1.2/0.9) bard (element)
= 0.44 (housing) + 0.68 bard (element)
= 1.12 bard (16.2 psid)

 

Stress-Resistant Media (SRT): Our media is designed to resist pleat bunching and fatigue, maintaining high beta stability even during cold starts and high-pressure surges.

Electrostatic Discharge (ESD) Protection: The UH310 series incorporates an anti-static mesh to prevent sparking and varnish buildup, protecting the oil chemistry and sensitive electronic valves.

Enhanced Dirt Holding Capacity: The specialized tapered pore structure allows for deep-bed filtration, significantly extending the time between filter changes compared to standard pleated elements.

Sealing Integrity: Features a high-integrity bonded end-cap design to ensure zero-bypass performance under maximum differential pressure.

The Ayater UH310 series is designed to be a direct fit for the following configurations:

UH310H (High collapse for non-bypass housings)

UH310Z (Standard collapse for bypass housings)

Common lengths: 04, 08, 13, 20, 40 inches (e.g., UH310H20Z)

Ordering Information / Part Numbers

For new installations, select one complete part number from each section below

Section 1 Housing P/N: UH310 [Table A] [Table B]

Note: Pall Athalon filter housings are supplied without filter elements or warning devices fitted. Never operate the filter unless a filter element is fitted and all warning device ports are sealed.

Note: Z indicates fluorocarbon seals are standard. Other options are available; contact Ayater. Housing P/N designates indicator port fitted with a plastic shipping plug.

Certifications

 

Honor Certificate

CE

ISO 14001

ISO 9001