4593.2502
Leser
Compact Performance safety valve, type 459,
closed bonnet, gas-tight cap H2,
for vapours, gases and liquids
Technical specification:
Order code output, line 1: K7RM33MB1K4XH03K3IP2AJ36X00V55
Order code issue, line 2: V66L49MA2H01
Medium: vapours/gases/liquids
Vapours/Gases/Liquids
E body material: 1.4104/430
1.4104 / 430
Weighted Connection Entry: (V55)
External thread G 3/4" according to DIN ISO 228-1
Threaded outlet: (V66)
Internal thread G 1" according to DIN ISO 228-1
Nominal size inlet G 3/4"
Nominal size outlet G 1"
Pressure stage entry PN 400
Pressure stage outlet PN 40
d0 (ASME-DIN) [mm] 9.0
Response pressure: 20.00
Pressure unit: bar-g
Response pressure [bar-g] 20.00
Set pressure in psi-g: 290.08
Cold set pressure [bar-g] 20.00
Cold Set Pressure [psi-g] 290.08
Operating temperature: 20
Temperature unit: °C - Celsius
Operating temperature [°C] 20.00
Operating temperature in °F: 68
Plate, metallic / material: (L49)
made of material: 1.4122
Sealing ring material: (MB1)
Sealing ring made of graphite/1.4401
Pressure screw material: (K7R)
Pressure screw material: 1.4104
Spring cap material: (J36)
0.7043 (GGG 40.3)
Spring material (X00)
standard material
Color scheme: (P2A)
1-layer coating system in RAL 5005 according to LID 1608.03
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
4.Marking, Pos.: Order 3184756 Pos. 2,000
Type and position of the 4th mark: (M17)
Marking world shield 2nd line
Discharge coefficient D/G: 0.83
Coefficient of discharge F: 0.61