DESCRIPTION
The Zetkama zSTRA Fig. 821 is a robust Y-shaped strainer with flanged connections designed to reliably protect piping systems from contaminants. Its closed design allows for filter cleaning without complete disassembly—saving time and minimizing operational downtime.
TECHNICAL DATA
Body Material & Pressure Ratings
- Grey cast iron (EN-GJL-250): PN 6 / PN 16
- Ductile iron (EN-GJS-400-18-LT): PN 16 / PN 25
- Cast steel (GP240GH): PN 40
- Stainless steel (G-X5CrNiMo19-11-2): PN 40
Nominal sizes
- DN 15 to DN 400 (depending on material and pressure rating)
Max. temperatures
- Grey cast iron: up to 300 °C
- Ductile iron: up to 350 °C
- Cast steel: up to 450 °C
- Stainless steel: up to 400 °C
Strainer inserts
- Standard mesh sizes: 1.0 mm / 1.25 mm / 1.6 mm
- Fine strainers on request: 0.25 – 0.63 mm
- Optional: Magnetic insert
Standards & Approvals
- Overall length per EN 558, Series 1
- Flange bores per EN 1092-1 / EN 1092-2
- Testing per EN 12266-1
APPLICATIONS
Air, cold and hot water, oil, other media upon request
TYPE
| 821 A-DN-C | Strainer, EN-GJL-250, PN 16 | ||
| 821 C-DN-D | Strainer, EN-GJS-400-18-LT, PN 25 | ||
| 821 F-DN-E | Strainer, GP 240 GH, PN 40 | ||