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product page - LESER Type 460 S & R pressure relief valves

S & R

TYPE 460

LESER Type 460 S & R pressure relief valve


Heating & Air Conditioning >


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

ce-mark logo
EAC logo

Technical Specifications for 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


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


Bellows Material (optional)


Load Type



TRD 721, PED/ DIN EN ISO 4126-1, PED/ AD 2000-Merkblatt A2, EAC



Access all the necessary documents and detailed information for pressure relief valves in our download area.

LESER S & R product catalogue. heating and air conditioning
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