INDUSTRY
Type 06820
Safety Valves, angle type, stainless steel, type tested, TÜV-SV.1130. S/G/L

Standard safety valve metal to metal seated, "cleaned and degreased for oxygen service" closed bonnet, gastight cap Inlet: male thread type G (BSPP) acc. to ISO 228/1 Outlet: female thread type G (BSPP) acc. to ISO 228/1


Part No. 06820.X.000000H (Pmax 550.0 bar) stellited version

with gastight cap



Available options - on request only:

- Flange- or NPT- connection for in- and outlet
- Special materials such as Monel, Hastelloy or Duplex for medium wetted parts


Applications:
Provided as safety device for protection against excessive pressure in gas cylinders and pressure vessels. Approved for gases, vapours and liquids.
Working temperature: -270°C / -454°F (3K) up to +400°C / +752°F (673K) Pressure-temperature must be observed, suitable for horizontal installation up to 300 bar

 
Type 06820
 

Materials

DIN EN

ASME/ASTM

1 Outlet body 1.4404 A 276 Grade 316L
2 Inlet body 1.4571 A 276 Grade 316Ti
3 Disc 1.4571 A 276 Grade 316Ti
5 Stem 1.4404 A 276 Grade 316L
6 Bonnet 1.4404 A 276 Grade 316L
7 Spring 1.4571 A 313 Grade 316Ti
8 Cap 1.4404 A 276 Grade 316L
Spare Parts
2 Inlet body 1.4571 316Ti
3 Disc 1.4571 316Ti
3.1 Split pin 1.4310 301
11 Gasket Graphite
12 Gasket Graphite

 
Type 06820
 

Type 06820Technical data
Nominal size GW 3/4
Orificed0 6.0
Dimension code.X.0633
Set pressure rangebar30-550
OutletGA3/4
HeightH1 247
LengthL145
LengthL229
LengthA116
Weight 06820ca. kg2.9
Coeff. of discharge gases, vapoursαw0.52
Coeff. of discharge fluidsαw0.42
Dimensions in mm.



Discharge capacities
Calculation of flow rate acc. to AD2000-Merkblatt A2 / DIN EN ISO 4126-1

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)
GW3/4
d0 (mm)6.0
A0 (mm²)28.27
MediumABC
30.02543503473
40.03364684011
60.05037084912
80.06709535672
100.084512036341
120.0103214516947
140.0123017037503
160.0143719528021
180.0168821948508
200.0221524298968
220.0-26599406
240.0-28939824
260.0-313310225
280.0-337410611
300.0-361410983
320.0-385411344
340.0-409411693
360.0-433412032
380.0-457512361
400.0-481512683
420.0-505512996
440.0-529513302
460.0-553513601
480.0-577613893
500.0-601614180
520.0-625614460
550.0-661614872
Pressure-Temperature Rating

Produktdetails Produktanfrage


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