Selexsorb Filter Cartridges
HILCO GT Series
Adsorbent Filtration for Phosphate Ester Fluids
HILCO Selexsorb™ GT Cartridges are engineered specifically for phosphate ester fluids, including turbine lubrication, hydraulic control, and EHC systems utilizing fluids such as Fyrquel®. The patented adsorbent media continuously removes acid phosphate compounds formed during fluid degradation, helping maintain fluid quality and extend service life.
By reducing acid accumulation within the fluid, Selexsorb GT cartridges help minimize fluid changeouts and support long-term equipment reliability in critical control and lubrication systems.
HILCO Selexsorb GT Cartridge Key Features:
Patented Adsorbent Media
Specifically formulated to select and remove acid phosphate compounds from phosphate ester fluids.
Designed for Phosphate Ester Applications
Engineered for use with Fyrquel® and other phosphate ester turbine and hydraulic control fluids.
Superior TAN Control
Helps maintain lower Total Acid Number (TAN) levels compared to conventional Fuller’s Earth treatment methods.
Chemical Bonding Mechanism
Acid phosphates are adsorbed onto the media surface rather than neutralized through a metal-based reaction.
HOW IT WORKS
Removing Acid Byproducts from Phosphate Ester Fluids
Phosphate ester fluids naturally degrade over time when exposed to heat, oxidation, and system contaminants. As degradation occurs, acidic phosphate compounds are formed within the fluid, increasing Total Acid Number (TAN) and accelerating fluid breakdown. If left untreated, these acidic byproducts can impact fluid performance, shorten fluid life, and contribute to increased maintenance requirements.
By continuously removing acidic degradation products, HILCO Selexsorb™ GT Cartridges help deliver:
Lower Total Acid Number (TAN)
Reduces the accumulation of acidic phosphate compounds within the fluid
Extended Fluid Service Life
Slows the progression of fluid degradation and helps preserve fluid properties
Reduced Fluid Replacement Costs
Supports longer intervals between fluid changeouts
Improved System Reliability
Helps maintain fluid condition in critical turbine and EHC applications
Unlike conventional treatment methods that neutralize acids through chemical reaction, Selexsorb GT utilizes patented adsorbent media that selectively attracts and retains acidic phosphate compounds as fluid passes through the cartridge. The degradation byproducts become bonded to the media surface and are removed from circulation, supporting phosphate ester fluid treatment without introducing additional reaction products into the system.
Industries
Protecting Critical Phosphate Ester Fluid Systems
HILCO Selexsorb™ GT Cartridges are used in applications where phosphate ester fluids require continuous acid control to maintain fluid quality, extend service life, and support reliable equipment operation.
WHY HILLIARD
Why Companies Choose HILCO Selexsorb GT Cartridges
Targeted Phosphate Ester Fluid Treatment
Selexsorb GT uses adsorbent media specifically suited for conditioning phosphate ester fluids such as Fyrquel used in critical industrial fluid systems.
Acid and Fluid Degradation Control
The adsorbent media removes acidic degradation products from phosphate ester fluids, helping maintain fluid chemistry beyond what particulate filtration alone can address.
Designed for Turbine EHC Systems
Selexsorb GT supports electrohydraulic control fluid conditioning in turbine applications where phosphate ester fluid quality is critical to system operation.
Integrated Fluid Conditioning Expertise
HILCO combines adsorbent cartridge technology with filtration equipment and application expertise to address both particulate contamination and fluid degradation in EHC systems.
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Founded in 1905, Hilliard has grown from a one-product business into a global manufacturer serving customers across motion control
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