LESER S&R Safety Valve Type 440 424

S&R

Type 424

Safety valve for steam boilers at up to 1 barg

Approvals

LESER S&R safety valves of Type 424 are designed, marked, produced and approved according to the requirements of the following regulations:

  • LESER CE Approvel
  • LESER EAC Approvel

Technical specifications Type 424

Nominal Diameter at Inlet
DN 25 - DN 150 | 1" - 6"
Actual Orifice Diameter d₀
23 - 125 mm | 0.98 - 4.92 in
Actual Orifice Area A₀
416 - 12272 mm² | 0.65 - 19 in²
Pressure
0.5 - 1 bar | 7.2 - 14.5 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 EN 1092-1
Bellows Material (optional)
EPDM
Load Type
Spring loaded
Approvals
TRD 721, PED/ DIN EN ISO 4126-1, PED/ AD 2000-Merkblatt A2, EAC
Contact LESER

Contact LESER

Send a message to LESER

Contact

Contact finder

Your local contact person will support you with all questions concerning the safety valve.

Find your local contact

You may also like