S&R
Technical specifications
| Nominal Diameter at Inlet | DN 20 - DN 150 | 3/4" - 6" |
| Actual Orifice Diameter d₀ | 13 mm - 125 mm | 0.512 in - 4.921 in |
| Actual Orifice Area A₀ | 133 mm² - 12.272 mm² | 0.206 in² - 19.022 in² |
| Pressure | 0.5 bar - 10 bar | 7.3 psig - 580 psig |
| Temperature (in accordance with DIN EN) | -45 °C to 150 °C | -49 °F to 302 °F |
| Body Material | 0.6025, 0.7043, 1.0619, 430F | Cast steel, Ductile Gr. 60-40-18, SA 216 WCB, 1.4104 |
| Valve Connection | Flange in accordance with DIN, threads |
| Bellows Material (optional) | Elastomer |
| Load Type | Spring-loaded |
Technical documentation
Benefits
- Safety valves for heating systems
- Standardized heating safety valve
- Suitable for steam generators up to 1 bar overpressure
- Suitable for water heating systems up to 120 °C
- Complies with DIN EN ISO 4126-1, DIN 4751 Part 2 and TRD 721 standards
Applications
- Heating and Air conditioning
Engineering services
Free engineering services:
- Support for the calculation, selection and configuration of LESER safety valves
- Support for the selection of spare parts for installed LESER valves
- Assistance in the selection of springs and parts when changing the set pressure of the LESER safety valve
- Assistance in restoring certificates and passports for LESER safety valves
- Assistance in finding additional options for LESER relief valves
- Provision of technical documentation for the operation and maintenance of safety valves.
- Training of the Customer's personnel on the operation and repair of LESER safety valves
Logistic services:
- Standard delivery "to the door", as well as the possibility of shipment of goods directly from the Factory on the terms of FCA Incoterms 2020
- Support in customs clearance of goods shipped on FCA terms, including the provision of certificates of conformity, as well as letters on the absence of the need for mandatory certification for certain groups of goods