Pleated Filter Cartridges woven or fabricated in Brass (H65 / CuZn35) keeps its dimensional specification to ISO 2941 / ISO 16889 beta-rated; the alloy determines corrosion behavior (good atmospheric and fresh-water resistance; unsuitable for ammonia service) and the service temperature limit (approx. +200 °C). Both are covered below with the full specification table.
Why Choose Brass for Pleated Filter Cartridges
The decorative and spark-resistant screening alloy. For pleated filter cartridges, this matters when good atmospheric and fresh-water resistance; unsuitable for ammonia service is the controlling requirement.
Alloy Properties
| Grade designation | H65 / CuZn35 |
|---|---|
| Magnetic response | Non-magnetic |
| Service temperature | approx. +200 °C |
| Corrosion characteristic | Good atmospheric and fresh-water resistance; unsuitable for ammonia service |
Corrosion Behavior in Filtration Service
Copper and brass pleated filter cartridges resist atmospheric corrosion and fresh water well, tarnishing to a stable patina. Avoid ammonia and ammonium compounds (stress-corrosion cracking of brass) and strong oxidizing acids. In marine service, phosphor bronze outperforms plain brass.
Cleaning & Compatibility
Clean copper-alloy mesh with mild detergent or dilute citric acid; avoid ammonia-based cleaners entirely. In contact with more noble metals in wet service the copper alloy becomes the sacrificial partner — isolate or accept the loss rate.
Specifications of Pleated Filter Cartridges Available in Brass
| Outer diameter (mm) | Length (mm) | Micron rating (u00b5m) | End connection | Reference standard |
|---|---|---|---|---|
| 65 | 250 | 1 / 5 / 10 / 25 | DOE / 222 / 226 | Pleated 5x area |
| 65 | 500 | 1 / 5 / 10 / 25 | DOE / 222 / 226 | Pleated 5x area |
| 65 | 750 | 1 / 5 / 10 / 25 | DOE / 222 / 226 | Pleated 5x area |
| 83 | 500 | 1 / 5 / 10 / 25 | 226 bayonet | Pleated 5x area |