Sterile Air & Steam — Ultrafilter

Steam-rated stainless · gas · liquid

Steam to 210 °C.
Liquid CIP. Hot gas.

Sintered SS 316L and pleated stainless aren't liquid-only. They're the right answer whenever polymer can't survive the chemistry, the temperature, or the steam cycle — including water at temperature, saturated steam to 210 °C, and aggressive process gas.

P-SM

Multi-layer mesh

1 → 250 µm · SS 1.4301 · 210 °C

Welded contact-points hold pore size under load. Backflushable. Widest cut-off range — coarse to medium. Removes particles from aqueous solutions, water and other liquids, as well as gases.

P-GS

Sintered 316L

1 / 5 / 25 µm · −20 °C to 210 °C

Weldless filter pipe with sintered stainless 316L. Bonding material Plastic Steel; > 150 °C: welded end caps.

P-GS VE

Welded ends

1 / 5 / 25 µm · 76 mm OD · 210 °C

P-GS variant with welded end caps as standard and a smaller OD. Different housing fit — confirm OD before swapping.

P-SWM

Pleated stainless

P-SWM

Pleated 316L

1 / 5 / 25 µm · 10 bar DP · 210 °C

3.7× P-GS surface area, double max DP. The high-pressure / high-flow option for hydraulic and deep-pull service.

Three duties, same element

Duty	Why stainless wins	Recommended
Saturated steam to 210 °C	Polymer hardware embrittles after >100 cycles · stainless doesn't	P-GS welded
Hot process gas (NH₃, CO₂, distillate)	Aggressive chemistry dissolves polymer media · 316L is inert to acids, alkalis, solvents	P-GS · P-GS VE
CIP returns · hot caustic · hot acid	Cleaning cycles destroy organic membranes · stainless mesh is field-regenerable in line	P-SM · P-GS
Hot water · ingredient water · chilled water	SS won't hydrolyse, won't shed fibres, won't taint product · widest cut-off range with P-SM	P-SM (1–250 µm)
High-pressure liquid · hydraulic transfer	Pleated SS holds 10 bar DP — twice the standard sintered limit	P-SWM
Heavy-load liquid · regeneration economics	Mesh handles backflush better than depth media · saves cartridge waste stream	P-SM mesh

Same elements, two pages

P-SM, P-GS, P-GS VE and P-SWM are listed here under "steam" and again on the liquid filtration page. Same parts, different application angle — pick the page that matches your duty cycle.

P-SRF variants

Four sterile grades.
Pick by application.

All variants share borosilicate depth media, SS 304 cores and silicone bonding. P-SRF-N: in-line steam (slow-speed saturated) max. 121 °C for 30 minutes, 131 °C for 20 minutes or 141 °C for 10 minutes.

Variant	Construction	Retention rate	Cycles	Best for
P-SRF	Wound depth filter	99.99998% @ 0.2 µm	min. 100 sterilisation cycles	Baseline sterile · brewing · F&B fermentation
P-SRF-N	Pleated depth filter	99.99998 % @ 0.2 µm	min. 100 in-line steam cycles	High-flow · aseptic packaging
P-SRF-CU	Pleated + PTFE impregnation	99.999999991 % @ 0.003 µm	min. 100 in-line · min. 200 autoclave	Nano-particle retention
P-SRF-VU	Pleated + PTFE impregnation	99.999999991 % @ 0.003 µm	min. 100 in-line · min. 200 autoclave	Same retention and cycles as P-SRF-CU

Sterile Air
& Steam.

Four families.
Sterile, vent, process, steam.

Steam to 210 °C.
Liquid CIP. Hot gas.

Four sterile grades.
Pick by application.

Designing a sterile
process line?

Sterile Air& Steam.

Four families.Sterile, vent, process, steam.

Steam to 210 °C.Liquid CIP. Hot gas.

Four sterile grades.Pick by application.

Designing a sterileprocess line?

Sterile Air
& Steam.

Four families.
Sterile, vent, process, steam.

Steam to 210 °C.
Liquid CIP. Hot gas.

Four sterile grades.
Pick by application.

Designing a sterile
process line?