Compact Performance safety valve, Type 459 Heavy duty design,
closed bonnet, gas-tight cap H2,
for vapours, gases and liquids
Technical specification:
Order code output, line 1: K7SM33MB1K4ZH03I63J54X00V54V66
Order code output, line 2: L20J25MA3H01
E-body material : 1.4404/316L
1.4404 / 316L
Weighted Connection Entry: (V54)
External thread G 1/2" according to DIN ISO 228-1
Threaded outlet: (V66)
Internal thread G 1" according to DIN ISO 228-1
Nominal size inlet G 1/2"
Nominal size outlet G 1"
Pressure stage entry PN 500
Pressure level outlet PN 160
d0 (ASME-DIN) [mm] 9.0
Response pressure: 400.00
Pressure unit: bar-g
Response pressure [bar-g] 400.00
Set pressure in psi-g: 5,801.51
Cold set pressure [bar-g] 400.00
Cold Set Pressure [psi-g] 5801.51
Operating temperature: 40
Temperature unit: °C - Celsius
Operating temperature [°C] 40.00
Operating temperature in °F: 104
Seat: (L20)
Entry body with armored sealing surface
Plate, metallic / Wst.: (J25)
1.4404/ 316L, metal sealing plate, rotatable with detachable lifting bell,
stellated
Sealing ring material: (MB1)
Sealing ring made of graphite/1.4401
Pressure screw material: (K7S)
Pressure screw material: 1.4404/ 316L
Spring cap material: (J54)
Spring cap material 1.4408 / CF8M, cast version
Spring material (X00)
standard material
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
Discharge coefficient D/G: 0.83
Coefficient of discharge F: 0.61
Attachment: Catalog excerpt Type 459
