4414.5682
Leser
High Performance Safety Valve, Type 441 ANSI Full Nozzle,
closed bonnet, gas-tight cap H2,
for vapours, gases and liquids
Technical specification:
Order code output, line 1: K7UM33MB1K4ZH03I64J54X00L39H89
Order code output, line 2: H79H65H28L8KL64L44H01
Housing material: (H28)
1.4408 / CF8M
Size inlet NPS 1"
Size outlet NPS 2"
d0 (ASME-DIN) [mm] 23.0
Discharge coefficient D/G: 0.70
Coefficient of discharge F: 0.45
Flange rating inlet (H65)
300 lbs per ASME B 16.5
Flange rating outlet (H79)
150 lbs per ASME B 16.5
Flange facing inlet: (H89)
serrated spiral finish (Ra = 3.2 - 6.3μm) according to ASME B16.5
Flange sealing surface outlet: (L39)
serrated spiral finish (Ra = 3.2 - 6.3μm) according to ASME B16.5
Response pressure: 18.00
Pressure unit: bar-g
Response pressure [bar-g] 18.00
Set pressure in psi-g: 261.07
Cold set pressure [bar-g] 18.00
Cold Set Pressure [psi-g] 261.07
Operating temperature: 20
Temperature unit: °C - Celsius
Operating temperature [°C] 20.00
Operating temperature in °F: 68
Seat Liner Material (L64)
Seat bush material: 1.4404/316L
Plate, metallic / material: (L44)
made of material 1.4404/ 316L
Sealing ring material: (MB1)
Sealing ring made of graphite/1.4401
Spring material (X00)
standard material
Spring cap material: (J54)
Spring cap material 1.4408 / CF8M, cast version
Guide washer material: (I64)
Guide washer material: 1.4401/ 1.4404/ 316/ 316L
Spindle material (K4Z)
Spindle material: 1.4404/ 316L
Pressure screw material: (K7U)
1.4401/ 1.4404/ 316/ 316L + PTFE/ glass
Lifting / cap material: (K8T)
Lifting / cap material: 1.4404/ 316L
Stud bolts material item 55 (L8K)
Material stud bolts Item 55: 1.4401/A4-70/SA-193+320 B8M
Hexagon nuts material item 56 (L9K)
Material of hexagon nuts item 56: 1.4401/A4-70/SA-194-8M
Blocking screw material: (MB5)
Decrease: (M33)
Proof of testing the set pressure (TRB 513 4.2, TRD 504 3.3.4): EN
10204-3.2 (TÜV-Nord)
Material quality verification for: (H01)
Housing – Position 1 with material quality certificate 3.1 according to DIN EN 10204
Documentation: (H03)
LESER CGA Certificate for Global Application Inspection certificate 3.1 according to DIN
EN10204