Coating Material Filter Element, PPL Series

Particles and agglomerates that get past the supply line end up in the applied film as visible defects, and the part or batch is reworked. A filter stage close to the point of application catches them after mixing, storage and pumping have each had a chance to add contamination.

This element is pleated polypropylene on a 2.7" (69 mm) body, in 10", 20", 30" and 40" lengths, with DOE or SOE end caps in 226 and 222 fin or flat patterns. Grades run from 0.1 to 100 µm. Every element is integrity-tested and produced in a cleanroom under ISO 9001. Seals are silicone, NBR, Viton or EPDM. Confirm the seal against the coating's solvent system, because on solvent-borne duty the seal is often the lower-rated material.

Coating fluids are usually more viscous than water, so treat the suggested 1–5 GPM per 10" element as a starting point and size the stage on the pressure drop at working viscosity. Maximum differential pressure is 4 bar at 21 °C and 2.4 bar at 80 °C.

The element uses the same PPL construction as Pullner's PP Pleated Water Filter Cartridge, which serves process water; this page covers its use on coating fluids. Compare the wider pleated filter cartridge range, or send your coating data to engineering for a sizing check.

Key Features

• Grades 0.1–100 µm — 0.1, 0.22, 0.45, 1, 3, 5, 10, 20, 50 and 100 µm on one construction.
• Pleated polypropylene media — 2.7" (69 mm) OD in 10", 20", 30" and 40" lengths.
• Standard end caps — DOE or SOE in 226 fin, 226 flat, 222 fin and 222 flat.
• Seal choice — silicone, NBR, Viton or EPDM, matched to the coating chemistry.
• Pressure rated hot and cold — 4 bar at 21 °C and 2.4 bar at 80 °C.
• Integrity-tested per element — cleanroom production under ISO 9001.

Applications

• Coating supply lines — particle and agglomerate removal ahead of the applicator.
• Coating recirculation loops — continuous filtration of circulating coating fluid.
• Coating preparation — filtration after mixing, before storage or transfer.
• Staged coating filtration — a coarser grade as the pre-filter and a finer grade as the final stage.

Who it is for

Coating process engineers, maintenance teams and coating-line integrators who need particle control on coating fluids between the mix tank and the applicator.

Typical operating conditions

• Micron rating: 0.1, 0.22, 0.45, 1, 3, 5, 10, 20, 50 or 100 µm
• Media: polypropylene, pleated
• Flow rate: 1–5 GPM per 10" element (suggested); size on working viscosity
• Max differential pressure: 4 bar at 21 °C; 2.4 bar at 80 °C
• Temperature limit: 80 °C
• Size: 2.7" (69 mm) OD; 10", 20", 30" or 40" long
• End caps: DOE or SOE (226 fin, 226 flat, 222 fin, 222 flat)
• Seals: silicone, NBR, Viton, EPDM

Recommended Pullner product family

PPL series, part of Pullner's pleated filter cartridge range. The PP Pleated Water Filter Cartridge uses the same PPL construction for process water service.

What to send before quotation or sample

• Fluid / media (coating type, solvent system and viscosity at working temperature)
• Flow rate
• Micron rating
• Temperature
• Pressure
• Existing housing or current model
• Maintenance / change-out cycle
• Validation requirement

Minimum order: 25 pieces. Lead time: 7 working days.

Next step: Get Quote · Request Sample · Send Current Model · Ask Engineering

What filter element material is used for coating fluids?

Pleated polypropylene, in grades from 0.1 to 100 µm. Polypropylene suits a wide range of coating fluids, but the seal decides compatibility as often as the media does. Choose silicone, NBR, Viton or EPDM against the solvent system, and send the coating chemistry so engineering can confirm both.

Can it replace the filter element on our current coating line?

It is a replacement option where the housing takes a 2.7" (69 mm) OD element, 10" to 40" long, with DOE or SOE 226 or 222 end caps. Send your current model and coating data. Dimensional fit is confirmed first; performance only after a sample and a trial on your coating.

How is it validated before we switch?

A fit check, then a sample on your coating, then a line trial that tracks differential pressure, change-out interval and the defect rate in the applied film against your current element. Switch only once the trial meets your acceptance limits.

What documentation is available?

Elements are produced in a cleanroom under ISO 9001, and each one is integrity-tested. Name the documents your quality team needs when you request a sample, and engineering will confirm what can be supplied with the order.

What are the temperature and pressure limits?

The temperature limit is 80 °C. Maximum differential pressure is 4 bar at 21 °C and 2.4 bar at 80 °C. Heated coatings flow more easily but reduce the pressure rating, so size warm duty on the 2.4 bar figure.