Castel-brand hermetically sealed solid-block mechanical dehydrator filter for the liquid line, with 3/8″ SAE Flare male threaded connections. Constructed with a compact, high-strength steel housing (outer diameter 52 mm, total length 156 mm), it guarantees a maximum allowable operating pressure ( PS) of up to 45 bar and an extended temperature range ( TS) from -40°C to +80°C. Optimized for deep dehydration and mechanical filtration of contaminants in commercial refrigeration and air conditioning systems operating with HFC and HFO refrigerant gases and their corresponding synthetic lubricants.
17,50€ VAT EXCLUDED
- Description
- Additional information
Description
Mechanical Reliability, High Pressure Resistance, and Total System Protection
The Castel solid cartridge dehydrator filter sets the standard for liquid line purification in modern refrigeration systems. The high-density solid core is shaped to firmly trap water molecules present in the circuit, preventing the formation of aggressive acidic compounds and protecting both the thermostatic valve orifice from internal freezing, as well as the compressor’s mechanical components from chemical corrosion.
The sturdy steel construction, featuring hermetically sealed welds and a protective coating, allows for safe operation up to 45 bar, making the filter compatible even with refrigerants that have high condensing pressures. The 3/8″ SAE threaded flanged fittings allow for a quick, clean connection with a perfect mechanical seal, without the need for on-site brazing.
Strengths & Advantages:
High-Capacity Hygroscopic Solid Cartridge: A compact, non-crumbling desiccant block designed to effectively absorb moisture and trace acids without releasing particulates or dust into the flowing fluid.
Integrated Mechanical Filtration: An internal containment screen that traps sludge, copper residues, and solid impurities down to 20 microns, protecting the rolling elements and valve seats.
High Mechanical Strength (PS 45 bar): Designed and tested to withstand pressure peaks of up to 45 bar, suitable for safe use with HFC/HFO mixtures and heavy-duty operating cycles.
Wide Operating Temperature Range (TS -40°C / +80°C): Excellent stability of materials and seals under both extreme freezing conditions (LBP) and high liquid line temperatures.
3/8″ SAE Flare Threaded Fittings: Standardized male flare connections that facilitate installation, inspection, and quick replacement using standard torque wrenches.
TECHNICAL SPECIFICATIONS
| Feature | Specifications |
| Brand / Manufacturer | Castel |
| Product Type | Hermetic solid-cartridge dehydrator filter for liquid lines |
| Connection Type | 3/8″ SAE Flare Male Threads (flare fittings) |
| Valve Body Diameter (Ø) | 52 mm |
| Overall Length | 156 mm |
| Maximum Allowable Pressure (PS) | 45 bar |
| Design Temperature (TS) | Min. -40°C / Max. +80°C |
| Desiccant Core | Molded solid cartridge with molecular sieves |
| Outer Casing Material | Drawn carbon steel with a protective epoxy coating |
| Compatible Refrigerants | R134a, R404A, R507, R407C, R410A, R448A, R449A, R452A, R1234ze, R32 |
| Lubricant Compatibility | Polyester synthetic oils (POE), PAG oils, alkylbenzenes, and mineral-based oils |
| Flow Direction | Unidirectional (direction arrow stamped on the body) |
| Applications | Commercial and industrial cold storage rooms, frozen food display cases, water chillers, refrigerated display cases, dehumidifiers, and heat pumps |
Additional information
| Weight | 1 kg |
|---|---|
| Dimensions | 52 × 52 × 156 cm |






