High performance safety valve, type 441 ANSI,
closed spring hood, gas-tight lifting H4,
for vapours, gases and liquidsv
M33 tests, acceptances
H03 tests, acceptances
H01 material quality certificate
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Technical specification:
Order code output, line 1: K7TM33MB1K4XH03K3IP2AJ36X00L39
Order code output, line 2: H89H79H65H22L8JL64L49H01
Housing material: (H22)
Housing made of material 1.0619 (GP240GH)
(with triple certificate: WCB,WCC,1.0619)
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: 30.00
Pressure unit: bar-g
Response pressure [bar-g] 30.00
Set pressure in psi-g: 435.11
Cold set pressure [bar-g] 30.00
Cold Set Pressure [psi-g] 435.11
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
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
Guide washer material: (K3I)
Guide washer material: 1.4104/ 430F
Spindle material (K4X)
Spindle material:1.4021
Pressure screw material: (K7T)
1.4104/ 430F + PTFE/ glass
Stud bolts material item 55 (L8J)
Material stud bolts Item 55: 1.7225/ SA-193 B7/ SA-320 L7
Hexagon nuts material item 56 (L9J)
Material hexagon nuts item 56: 1.7225 / SA-194 size 7 / SA-320 7L
Decrease: (M33)
Proof of testing the set pressure (TRB 513 4.2, TRD 504 3.3.4): EN
10204-3.2 (TÜV-Nord)