Extrusion Pressure Testing Systems for ASTM D-3218, D-6265 and DIN-EN-13900-5 Filter Pressure Valve FPV test

Available as a complete system or as a retrofit to an existing extruder, Wayne Yellow Jacket Extrusion Pressure Testing Systems are ideal for the following tests:

ASTM D 3218, "Standard Specification for Polyolefin Monofilaments" filter test with or without a melt pump
ASTM D 6265, "Standard Practice for Separation of Contaminants in Polymers using an Extruder" filter test with or without a melt pump
EN 13900-5 "Pigments and extenders - Methods of dispersion and assessment of dispersibility in plastics Part 5: Determination by filter pressure valve test" with a melt pump to determine FPV values
Any pressure testing protocol dealing with pressure vs. time with or without exact volume requirements

The New Yellow Jacket Extrusion Pressure Testing System benefits processors by allowing quick and easy pressure tests of polymers and polymer compounds. The system is used to make comparitive tests of different batches of material to see if they exhibit the same mechanical properties. The system works by using a precision gear pump with a digital drive to meter a known quantity of melted material through special "dutch weave" type screens. Using the same mesh screens from test to test, the pressure levels can be compared to determine if the flow of each batch is the same.

For example the equipment supplied for the "EN 13900-5 Pigments and extenders - Methods of dispersion and assessment of dispersibility in plastics Part 5: Determination by filter pressure valve test" would be supplied with the following:

19mm (3/4") to 30mm (slightly less than 1-1/4") Extruder with a 20:1 to 30:1 L/D ratio
Melt pressure feedback control loop tied to the extruder screw speed
Melt pump of the appropriate throughput required by the test
Melt pressure transducer after the pump, with a paper or electronic strip chart recorder for pressure value vs. time used to calculate FPV value. Optional Data Acquisition system with logging and trending capability is available instead of a strip chart recorder, which can log melt pressure data to Excel type spreadsheets with automatic FPV value calculation
Breaker plate manufactured according to the test requirements and quick change holder, supplied with the three types of two and three layer screen packs with integral sealing rings required by the test . 90 degree holder discharges downward.
Optional items include manual or hydraulic screen changers.

Systems are available without a melt pump for situations where a constant or known volume of material is not required. Pressure levels are recorded by a strip chart or an optional computerized Data Aquisition System. The consistentcy of these mechanical properties are mission critical in the production of blown and cast film, wire insulation, sheet, rod, profile, fiber optic sheathing, fiber, compounding, tubing and other extrusion applications. A wide range of polymers and compounds can be run tested on these systems and they can be configured to process corrosive polymers like FEP and PFA. The pictured system is based on a 1" 24:1 Yellow Jacket Extruder and systems are available with extruders sized 3/8" up to 2".

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