Every utility that touches the product on a pet food line — tank-vent air, ingredient water, culinary steam — is a route for contamination. We supply the filters that close every one of those gaps.
Spoiled product · clogged spray balls · scaled steam gear · a recalled batch · a reputation built over decades.
Pet food production runs on shared utilities — process water, culinary steam and tank-vent air — and every one of them touches the product or the equipment that makes it. Unfiltered makeup air carries microorganisms into sealed wet, fat and palatant tanks. Boiler carry-over clogs CIP spray balls and scales steam heaters.
Ultrafilter has supplied process filtration — P-BE vent filter elements and PF-PT PTFE membrane elements for tank venting, P-GS VE sintered-stainless culinary-steam filters for CIP/SIP and for culinary steam where it contacts product, and PF-PP pre-filters and PF-PES membranes for coarse and ingredient water. FDA 21 CFR per product DoC, EC 1935/2004 food-contact; for SQF-certified plants. Every element ships with its datasheet and food-contact Declaration of Conformity; sterile elements also with integrity-test record and validation guide.
Each family covers a duty on the pet food line. Each ships with its datasheet and food-contact Declaration of Conformity; sterile elements also with integrity-test record and validation guide.

Sintered stainless for culinary steam where steam contacts product, and CIP/SIP. Welded end caps, 1 / 5 / 25 µm, to 210 °C.

Polypropylene food-contact pre-filter for coarse process and feed water.

PES 0.2 µm membrane for ingredient water that enters the product. EC directives for food contact.

Tank vent on wet, fat and palatant tanks — wound borosilicate vent filter, 99.99998 % related to 0.2 µm, min. 100 sterilisation cycles.

Hydrophobic PTFE membrane breather, 0.2 µm, for wet off-gas on tank vents. Up to 100 forward steam cycles of 30 min at 135 °C.
Every element carries the paperwork your QA and production teams need before it ever contacts your process air, steam or ingredient water.
Send us a P&ID, a flow rate, or just the duty — tank-vent air, ingredient water or culinary steam. We size the train and ship the documentation: datasheet and food-contact DoC, plus integrity-test record and validation guide for sterile elements.