Designed and manufactured in Quebec since 1986
sales@patt-tech.com

Monoblock filtration platform

Rotary IV: built for aggressive polymers.

Rotary IV is the monoblock platform for lines where corrosion, abrasive compounds and repeated cleaning drive tooling maintenance. Body alloy and surface treatment are chosen together for the resin and exposure, while continuous screen renewal retains Patt’s pressure-control approach.

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Rotary IV side profile
450 °CTemperature capability
1 µmConfigured filtration down to
4Documented frame sizes
PEAProprietary body-material option

Model selection

Where this system fits

Select by the process duty, then size the filter.
Selection factorApplication guidance
Primary nicheMonoblock melt-contact construction where corrosion and wear are major maintenance drivers.
Applications to reviewPVC and CPVC, fluoropolymers, filled compounds and high-temperature engineering resins; suitability depends on actual formulation and decomposition conditions.
Material selectionSpecify the body alloy, nitrided case, cleaning exposure and allowable wear as one package. See the separate Patt steels page.
Temperature and pressureBrochure temperature capability up to 450 °C. Final allowable pressure at temperature, seals, instrumentation and material condition are confirmed for the configuration.

Application focus

When standard tool steels become the maintenance problem.

Rotary IV is intended for services where corrosive decomposition products, abrasive fillers or elevated processing temperatures shorten component life.

HAL

Halogenated polymers

Material and flow-path choices for PVC, CPVC, fluoropolymers and related corrosive off-gassing environments.

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GF

Filled compounds

Wear-focused construction for glass, mineral, carbon and other abrasive filler systems.

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HT

High-temperature melts

Configured for high-temperature engineering polymers where thermal stability and residence time are critical.

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Integrated surface and materials engineering

Corrosion resistance without a bonded coating interface.

The monoblock concept avoids a dissimilar coating or liner interface in the main body. Final material selection and qualification remain application-specific.

  • Constant-pressure control and continuous screen renewal
  • Networked logging and line integration
  • High-pressure and hazardous-area configurations by project
  • Purpose-manufactured adapters, dies and wear components
Rotary IV side profile
Monoblock architecture

rotary-iv

Rotary IV frame specifications

Filter dimensions and measurement references
Dimensions
Rotary IV specifications · dimensions in millimetres
ModelScreen areaHeatingMax. pressureABCDEFGWeight
Rotary IV A10–48 cm²3,200 W5,800 psi280180580570251170166100 kg
Rotary IV B38–100 cm²4,800 W6,500 psi300224586676315205203152 kg
Rotary IV C85–184 cm²9,800 W6,500 psi355288733875419245258348 kg
Rotary IV D150–385 cm²13,000 W6,500 psi6814351,0201,085550270334954 kg

Related products and technical guidance

Bring us the process problem, not just a part number.

Share the polymer, throughput, temperature, pressure, contamination and target filtration. Our team will define the right system or process route.

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