Polypropylene Melt Blown Filter Cartridge (PLM-PP Series)

Pullner’s PLM-PP series is a general-purpose polypropylene depth filtration cartridge built for reliability across a wide range of applications. With chemical compatibility covering acids, alkalis, alcohols, and acetone at pH 1–13, the PLM-PP handles more fluid types than any other cartridge in the range. Available in 7 filtration ratings from 1µm to 60µm, it is the most cost-effective option in Pullner’s melt blown filter cartridges lineup.

Applications

The PLM-PP polypropylene melt blown filter cartridge is used as a pre-filtration or security filtration element across the following industries:

Food & Beverage: Filtration of alcohol, beverages, and drinking water
Pharmaceutical: Pre-filtration of injections, liquid medicines, large infusions, and antibiotics
Water Treatment: RO membrane pre-filtration, industrial process water, municipal water
Electronics: Pre-filtration of pure water and ultra-pure water
Petroleum & Chemical: Filtration of organic solvents, acids, alkalis, and oilfield water injection

Product Features

Three-layer gradient structure (loose outside, dense inside) for effective depth filtration
100% pure polypropylene — will not contaminate the treated liquid
Thermally bonded fibers — no chemical binders or adhesives used
No fiber shedding during operation
Wide chemical compatibility — resistant to acids, alkalis, alcohols, and acetone (pH 1–13)
Not compatible with benzene, xylene, or trichloroethylene
FDA compliant material
All common end cap configurations and adaptor types available
Free samples available (customer pays shipping via DHL, UPS, or FedEx)

Technical Specifications

Specification	Details
Product Series	PLM-PP
Filter Medium	Polypropylene (PP)
Core Material	Polypropylene (PP), Nylon, Fiberglass Reinforced PP
End Caps	Thermal welded PP or Nylon
Seal / Gasket	Silicone, EPDM, BUNA-N, Viton
Filtration Ratings	1µm, 3µm, 5µm, 10µm, 20µm, 30µm, 60µm
Outer Diameter	63 mm (custom sizes available)*
Inner Diameter	30 mm (custom sizes available)
Lengths Available	10″ (254 mm), 20″ (508 mm), 30″ (762 mm), 40″ (1016 mm)
Max Operating Temperature	80°C
Max Differential Pressure	0.4 MPa at 21°C
Recommended Change-out ΔP	0.2 – 0.4 MPa
pH Range	1 – 13
Steam Sterilization	126°C for 30 minutes
Certifications	FDA compliant, ISO 9001
Production Process	Polymer extrusion → Spinning → Shaping → Cooling → Winding → Cutting