DESCRIPTION
The Zetkama 234 is a high-quality bellows-sealed shut-off valve designed for the safe shut-off and throttling of media, such as in water and steam systems. It is particularly distinguished by its double-walled bellows seal, which ensures maximum tightness (leakage class A) and is virtually maintenance-free.
TECHNICAL DATA
- Body Material & Pressure Ratings
- Grey cast iron (EN-GJL-250): 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 15–250 (gray cast iron)
- DN 15–200 (ductile iron, cast steel, stainless steel)
- Max. temperatures
- Gray cast iron: up to 300 °C
- Ductile iron: up to 350 °C
- Cast steel: up to 450 °C
- Stainless steel: up to 400 °C
- Standards & Approvals
- Leakage class A per EN 12266-1
- Overall length per EN 558, Series 1
- Flange bolt holes per EN 1092-1 / EN 1092-2
- ISO 15848-1 Class AH – TA-LUFT
Application
Cold and hot water, steam, neutral fluids; other media on request
Types
| 234C‑DN‑C‑01 | Stop valve with bellows, metallic sealing, EN-GJS-400-18-LT, PN 16 | |
| 234C-DN-D-01 | Stop valve with bellows, metallic sealing, EN-GJS-400-18-LT, PN 25 | |
| 234C-DN-C-71 | Stop valve with bellows and throttling disc, metallic sealing, EN-GJS-400-18-LT, PN 16 | |
| 234C-DN-D-71 | Stop valve with bellows and throttling disc, metallic sealing, EN-GJS-400-18-LT, PN 25 | |
| 234C‑DN‑C‑08 | Stop valve with bellows, soft sealing, EN-GJS-400-18-LT, PN 16 | |
| 234C-DN-D-08 | Stop valve with bellows, soft sealing, EN-GJS-400-18-LT, PN 25 | |
| 234F-DN-E-01 | Stop valve with bellows, metallic sealing, GP240GH, PN 40 | |
| 234I-DN-E-01 | Stop valve with bellows, stainless steel, metallic sealing, 1.4408, PN 40 | |
| 234I-DN-E-71 | Stop valve with bellows and throttlinc disc, stainless steel, metallic sealing, 1.4408, PN 40 |