Description

Product Overview

Flohydra cellulose post‑filter cartridge is a pleated cellulose filter component designed for power‑plant turbine phosphate‑ester fire‑resistant hydraulic systems.

This is a physical particle‑removal filter element. It does not perform acid reduction, dehydration or ion‑exchange treatment. It is typically installed downstream of side‑stream regeneration assemblies, capturing fine media fines and solid particles washed over from upstream equipment. It provides reliable protection for precision servo valves and other delicate hydraulic components against abrasive particle contamination.

All cartridges adopt FKM fluororubber seals to adapt to phosphate‑ester working fluid. NBR rubber seals are incompatible for this operating condition.

Important note: Verify matching specifications before ordering. Similar outer dimensions do not guarantee interchangeability.

Core Features

Pleated cellulose filter media for effective solid particle retention

304 stainless steel perforated inner support skeleton, enhances structural stability of filter element

Standard FKM fluororubber seal, resistant to swelling caused by phosphate‑ester fire‑resistant oil

Direct drop‑in installation, no modification to existing filter housing required

Acceptable dirt‑holding capacity, helps extend service cycle under normal operating conditions

Disposable consumable, not designed for cleaning and repeated reuse

Application Scenarios

Applied to power‑plant turbine EH fire‑resistant hydraulic control loops. Serves as downstream post‑filter within regeneration side‑stream circuits, intercepting fine debris before oil flows back to the hydraulic tank.

Cross‑Reference Information

Item	Filter Media	Functional Note
Post‑filter cartridge	Cellulose	Physical particle interception for EH regeneration loop downstream

Note: This element is used for particle filtration only. It cannot replace adsorption‑style regeneration cartridges.

Technical Specifications

Item	Specification
Applicable Fluid	Phosphate‑ester EH fire‑resistant hydraulic oil
Filter Media	Pleated Cellulose
Seal Material	FKM Fluororubber
Inner Support	304 Stainless Steel Perforated Tube
Working Function	Solid particle and fine debris capture (physical filtration only)
Installation Position	Downstream of EH side‑stream regeneration assembly
Service Type	Disposable replacement cartridge

Selection Guidance

Confirm equipment specifications before purchase. This element only delivers physical particle filtration and cannot adjust oil acid value or resistivity.

It is recommended to equip this post‑filter when operating upstream regeneration units, lowering the risk of fine debris entering precision hydraulic components.

Keep track of filter differential pressure. Replace the cartridge once differential pressure reaches system preset threshold.

FKM fluororubber seal is mandatory for phosphate‑ester fire‑resistant oil working conditions.

FAQ

Q: Can this post‑filter reduce oil acid value or improve oil resistivity? A: No. It functions purely as a physical particle‑capture filter. Oil performance conditioning should be completed by upstream regeneration equipment.

Q: Can the cellulose filter cartridge be cleaned and reused? A: Not recommended. Pleated cellulose media cannot recover original performance after contamination. Install brand‑new replacement instead.

Disclaimer: Flohydra provides compatible replacement elements, not original OEM spare parts. Please double‑check dimensions and working conditions before placing orders.