LESER S&R Safety Valve Type 460

S&R

Type 460

Threaded safety valve for heating plants up to 120 °C acc. to DIN 4751 part 2

Approvals

LESER S&R safety valves of Type 460 are designed, marked, produced and approved according to the requirements of the following regulations:

  • LESER CE Approvel
  • LESER EAC Approvel

Technical specifications Type 460

Nominal Diameter at Inlet
DN 15 - DN 20 | 3/4" - 1"
Actual Orifice Diameter d₀
13 - 17.5 mm | 0.51 - 0.69 in
Actual Orifice Area A₀
133 - 241 mm² | 0.21 - 0.37 in²
Pressure
1 - 10 bar | 14.5 - 145 psig
Temperature (in accordance with DIN EN)
up to 120 °C | up to 248 °F
Body Material
1.4104 (Inlet), 0.7043 (Outlet) | 1.4104 (Inlet), Ductile Gr. 60-40-18 (Outlet)
Valve Connection
Thread
Bellows Material (optional)
EPDM
Load Type
Spring loaded
Approvals
TRD 721, PED/ DIN EN ISO 4126-1, PED/ AD 2000-Merkblatt A2, EAC
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