PVC-U Line Strainer Type 305 d20-d90 PN10

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The Type 305 PVC-U line strainer manufactured by Georg Fischer is an industrial inline filtration component designed to protect downstream pumps, instrumentation sensors, and control valves from pipe scale and suspended solids. Fabricated from unplasticised polyvinyl chloride, this Y-pattern strainer provides mechanical protection across water treatment plants, chemical handling circuits, and commercial swimming pools. Rated at PN10 for operating temperatures up to 45 degrees Celsius, it ensures dependable particulate retention across metric piping systems from d20 up to d90.

Technical specifications

The Georg Fischer Type 305 line strainer features an inclined sedimentation chamber configured to optimize internal fluid dynamics and minimize localized pressure drops. Solid debris is guided directly into the cylindrical screen insert, which can be extracted easily through the threaded access cap for maintenance without dismantling the valve body from the pipeline.

• Nominal pressure rating: PN10 (10 bar) at a reference temperature of 20 degrees Celsius.
• Operating temperature range: up to 45 degrees Celsius for unplasticised polyvinyl chloride media lines.
• Body geometry: Y-pattern configuration with integrated threaded bonnet for rapid servicing.
• Filtration media: interchangeable cylindrical thermoplastic screen insert for precise debris separation.
• Connection standard: metric solvent cement sockets conforming to industrial piping dimensions.

Applications

This inline filtration unit is deployed throughout industrial fluid handling infrastructure where mechanical debris poses an operational risk to sensitive process equipment. It serves as essential protection upstream of dosing pumps, flow meters, pressure regulators, and automated control valves.

Typical installations include municipal and industrial water treatment facilities, chemical processing lines carrying inorganic acids or alkalis, cooling water circuits, and commercial aquatic or pool recirculation systems. The non-corrosive PVC-U body ensures continuous resistance against aggressive saline solutions and chemical media where conventional cast iron or bronze strainers suffer from oxidation and scale deposition.

Installation and jointing

The Type 305 line strainer is installed directly into metric PVC-U pipe networks using standard solvent cementing techniques. The unit must be oriented in the direction of process flow indicated on the valve body, with the angled filter chamber positioned downward to facilitate gravity sedimentation.

Solvent cement jointing is executed using certified solvent cements such as Tangit PVC-U along with proper surface cleaners to achieve leak-free, chemically resilient solvent socket bonds. Adequate clearance must be provided beneath the threaded access cap to allow routine removal and flushing of the cylindrical filter screen during scheduled system maintenance. BigWeld is an authorised Georg Fischer distributor supplying certified thermoplastic piping systems and industrial fluid management components across Europe.