
LESER Series 441/442 DIN High Performance Relief Valve
AirGasLiquidSteam
Protect your pressure equipment from dangerous overpressure. The LESER Series 441/442 is engineered for general industry applications, offering reliable overpressure protection with DIN flanged connections.
| Inlet Sizes | DN 20 – DN 200 |
| Pressure Ratings | 0.1 – 40 bar / PN 16 – PN 40 |
| Materials | Cast iron, Ductile Gr. 60-40-18, SA 216 WCB, SA 351 CF8M |
| Approvals | PED, EN ISO 4126-1, TÜV SV 100 and AD 2000-Merkblatt A2 |
| Connection | Flanged |
- Protection of chemical processes and equipment (e.g. distillation columns)
- Heat exchangers
- Low and medium pressure steam systems
- Blowers and turbo compressors