INDUSTRY
Type 06311
Safety Valves, angle type, stainless steel,
type tested, TÜV-SV.909. S/G/L

Full lift safety valve Standard safety valve for fluids metal to metal seated, closed bonnet, with lifting device Inlet: male thread type G (BSPP) acc. to ISO 228/1 Outlet: female thread type G (BSPP) acc. to ISO 228/1

Part No. 06311.X.0000

Available options - on request only:

- Disc with soft sealing (NBR, CR, EPDM, FKM, FFKM, PCTFE, PTFE-FDA)


Applications:
Provided as safety device for protection against excessive pressure in pressure vessels. Approved for gases, vapours and fluids.
Working temperatures (metal to metal seated): -200°C / -328°F (73K) up to +400°C / +752°F (673K)
Working temperatures for discs with soft seals on request

 
Type 06311
 

Materials

DIN EN

ASME/ASTM
1 Outlet body 1.4408 A 351 CF 8M
2 Inlet body 1.4404 A 276 Grade 316L
3 Disc 1.4404 A 276 Grade 316L
4 Stem 1.4404 A 276 Grade 316L
5 Bonnet 1.4408 A 351 CF 8M
6 Spring 1.4310 A 313 Grade 301
7 Lifting cap 1.4408 A 351 CF 8M

 
Type 06311
 

Type 06311Technical data
Nominal size GW 3/43/4 1
Orificed091317.5
Dimension code.X.090613061710
Set pressure saturated steambar1.5-2000.2-2000.2-100
Set pressure air and fluidsbar1.5-2500.2-2000.2-100
OutletGA111-1/2
HeightH280280281
LengthL1505054
LengthL2757575
LengthA1161618
Weightca. kg2.62.63.0
Coeff. of discharge gases, vapoursαw0.830.810.79
Coeff. of discharge fluidsαw0.610.530.52
Dimensions in mm.



Discharge capacities
Calculation of flow rate acc. to AD2000-Merkblatt A2

Medium:
A = Saturated steam in kg/h
B = Air in m³/h at 0°C and 1013.25 mbar
C = Water in kg/h at 20°C

The capacity indicated below is for a fully opened valve.

d0 - orifice
A0 - flow area


Set
pressure
in bar (ü)		GW3/43/41
d0 (mm)91317.5
A0 (mm²)63.6133.0241.0
MediumABCABCABC
0.2---5361196085983480
0.5---849827701341574930
1.0---12014337502002386670
2.093113293019022953103314009440
3.01271553590258316650045655811600
4.01581954140322396751056970013300
5.01892344630386477839068184214900
6.02202745070449557919079398516300
8.02823535860573718106001013126918900
10.03434326550699879119001235155421100
15.0496629802010091281145001783226425800
20.0650827926013231685168002338297729800
25.080210251040016322087188002885368833400
30.095712231130019492490206003445440136500
40.0126816181310025823295237004562582442200
50.0158820141460032344101265005715724747200
60.0191024091600038894906291006874867151700
80.02583320118500525965173360092941151859700
100.032963992207006711812737500118621436466700
150.05438596925400110721215346000---
200.08989794729300-1618153100---
250.0-992432700------
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