LESER S&R SAFETY VALVES OF TYPE 440
VAN AN TOÀN LESER S&R KIỂU 440
LESER S&R SAFETY VALVES OF TYPE 440
Thông tin sản phẩm:
VAN AN TOÀN LESER S&R 440 dùng cho hệ thống điều hòa không khí.
Information Product:
- 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
Industries: Heating and Air conditioning
Technical specifications Type 440
- Nominal Diameter at Inlet: DN 25 – DN 150 | 1″ – 6″
- Actual Orifice Diameter d₀: 18 – 125 mm | 0.71 – 4.92 in
- Actual Orifice Area A₀: 254 – 12272 mm² | 0.27 – 19.02 in²
- Pressure: 1 – 10 bar | 14.5 – 145 psig
- Flange Rating Inlet: PN 16 | PN16
- Temperature (in accordance with DIN EN): up to 120 °C | up to 248 °F
- Body Material: 0.6025, (1.6019) | Cast steel, (SA 216 WCB)
- Valve Connection: Flange acc. to DIN
- Bellows Material (optional): EPDM
- Load Type: Spring loaded
- Approvals: TRD 721, PED/ DIN EN ISO 4126-1, PED/ AD 2000-Merkblatt A2, EAC
