5264.2442

API Series Safety Relief Valve, Type cap H2,
Orifice L,
closed bonnet, gastight cap H2,
for steam, gas and liquid service

Technical specification:
Ordercode output, line 1: K7SK2SK2RMB1K4ZH03M66M68I63J54
Ordercode output, line 2: X00L39H89H79H65H28L8KK1FL44H01
Ordercode output, line 3: L23L30L59N8DN68
Medium: Gases
Gases
Body material: (H28)
1.4408 / CF8M
Nominal diameter inlet: NPS 4"
Nominal diameter outlet: NPS 6"
d0 (ASME-DIN) [mm] 53,5
Alpha d S/G: 0,80
Alpha d L: 0,58
Pressure rating inlet: (H65)
300 lbs according to ASME B 16.5
Pressure rating outlet: (H79)
150 lbs according to ASME B 16.5
Flange facing inlet: (H89)
Serrated spiral finish, Ra=3,2-6,3
Flange facing outlet: (L39)
serrated spiral finish (Ra = 3,2 - 6,3 μm) according to
ASME B 16.5
Set pressure: 270,00
Pressure unit: psi-g
Set pressure [bar-g] 18,62
Set pressure in [psi-g] 270,00
CDTP [bar-g] 18,62
CDTP [psi-g] 270,00
Operating temperature: 150
Temperature unit: °F - Fahrenheit
Operating temperature in °C: 65,56
Operating temperature in °F: 150
Nozzle material (K1F)
Nozzle material: 1.4408 / ASME SA-351 CF8M stellited
Metal disc / mat.: (L44)
disc material 1.4404 / 316L
Guide material: (I63)
Guide material: 1.4404 / 316L
Spindle material: (K4Z)
Spindle material: 1.4404 / 316L
Adjusting ring material: (K2S)
Lock screw material: (K2R)
Lock screw material: 1.4404/ 316L
Bonnet material: (J54)
Bonnet material 1.4408 / CF8M, casted design
Spring material: (X00)
default material
Stud bolt material Pos. 55 (L8K)
Material stud bolts pos. 55: 1.4401/A4-70/SA-193+320 B8M
Nuts material Pos. 56 (L9K)
Material nuts pos. 56: 1.4401/A4-70/SA-194-8M
Material certification for: (H01)
Body – Item 1 with Material certification 3.1 acc. to DIN EN 10204

Material certification for: (L23)
Disc - Item 7 with Material certification 3.1 acc. to DIN EN 10204
Material certification for: (L30)
Bonnet - Item 9 with Material certification 3.1 acc. to DIN EN 10204
Material certification for: (L59)
Seat or Nozzle - Item 5 with Material certification 3.1 acc. to DIN EN 10204
Design specification: (N68)
Approval according to ASME Sec. XIII for ASME VIII DIV. 1 (UV Stamp)