Groove Type Melt Blown Filter Cartridge, PLM Series

On high-solids or viscous liquids, a smooth melt blown cartridge loads at its outer face first. The surface blinds, differential pressure climbs, and the element comes out while much of its depth is still unused. The groove type PLM cartridge has slots cut along its outer surface. They add face area for coarse particles to settle into before the fluid reaches the finer inner layers.

The media is 100% polypropylene, melt blown into a graded depth structure on a 63 mm outer diameter. Grades are 1, 3, 5, 10, 20, 30 or 60 µm, in 5", 10", 20", 30" and 40" lengths. End caps are DOE or SOE (226 fin, 226 flat, 222 fin, 222 flat) with silicone, NBR, Viton or EPDM seals, so the cartridge can be matched to the housing already in service. Maximum differential pressure is 4 bar at 21°C and 2.4 bar at 80°C.

The PLM series comes in three surface types on one specification. Choose the groove type for dirty or viscous feeds, the orange-peel surface where the element needs rigidity under differential pressure, and the mini-grooved surface for a finer polishing stage. Compare the full melt blown filter cartridge range, or run the groove type as the pre-filter that protects pleated filter cartridges downstream.

Key Features

• Grooved outer surface — slots add face area for coarse solids on dirty or viscous feeds
• 100% polypropylene media — melt blown depth structure in 1, 3, 5, 10, 20, 30 or 60 µm
• Standard format — 63 mm OD in 5", 10", 20", 30" and 40" lengths
• Housing fit — DOE or SOE (226 fin, 226 flat, 222 fin, 222 flat) end caps; silicone, NBR, Viton or EPDM seals
• Rated limits — 4 bar at 21°C, 2.4 bar at 80°C; 80°C maximum temperature
• ISO 9001 manufacture — minimum order 1000 pieces; lead time 15 working days

Applications

• Pre-filtration of high-solids process liquids ahead of finer cartridges
• Viscous liquids where smooth-surface melt blown cartridges clog early
• Industrial water treatment and RO pretreatment lines with heavy suspended solids
• Protection of pleated or membrane final filters from coarse particle loading

Who it is for

Plant engineers, system integrators and maintenance teams running process liquids or industrial water with high solids or high viscosity, where standard cartridges are changed too often.

Typical operating conditions

• Micron rating: 1, 3, 5, 10, 20, 30 or 60 µm
• Flow: 1–5 GPM per 10" element (suggested)
• Temperature: up to 80°C
• Max differential pressure: 4 bar at 21°C / 2.4 bar at 80°C
• Size: 63 mm OD, 5", 10", 20", 30" and 40" lengths
• End caps: DOE or SOE (226 fin, 226 flat, 222 fin, 222 flat); seals: silicone, NBR, Viton or EPDM

Recommended Pullner product family

Melt blown filter cartridges, PLM series. The groove type suits dirty or viscous feeds; the orange-peel and mini-grooved surfaces share the same specification for other duties.

What to send before quotation or sample

• Fluid / media
• Flow rate
• Micron rating
• Temperature
• Pressure
• Existing housing or current model
• Maintenance / change-out cycle
• Validation requirement

Get Quote · Request Sample · Send Current Model · Ask Engineering

Can the PLM groove type cartridge replace the melt blown cartridge we run now?

It is a replacement option where your housing takes a 63 mm OD cartridge in 5" to 40" lengths with DOE or SOE end caps. Send the current model, end cap and seal type. Engineering confirms dimensional fit first; performance on your fluid is confirmed by a sample or trial.

How is it validated before switching?

Start with a fit check against your housing, then run a sample on the actual feed. Compare differential pressure rise, change-out interval and downstream quality against the cartridge in service. Scale the order only after your team accepts the trial result.

What data or documentation is available?

This page publishes the micron grades, media, dimensions, end caps, seals, flow, pressure and temperature limits. Pullner manufactures under ISO 9001. Ask engineering which inspection or test records can accompany your order before you request a sample.

What are the operating limits?

Maximum temperature is 80°C. Maximum differential pressure is 4 bar at 21°C, falling to 2.4 bar at 80°C. The media is polypropylene, so confirm chemical compatibility for your specific fluid, concentration and temperature. The cartridge is rated for liquid service.

What is a grooved surface melt blown filter cartridge?

It is a melt blown polypropylene depth cartridge with grooves cut into its outer surface. The grooves add face area for coarse particles, so the surface takes longer to blind on dirty feeds. Pullner's PLM groove type is rated 1 to 60 µm on a 63 mm OD.

What is the minimum order and lead time?

Standard minimum order is 1000 pieces and standard lead time is 15 working days. Send the length, micron grade, end cap and seal material with your inquiry so the quote matches the exact configuration.