Compact
Compact
Compact
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Type 439<br />
Packed knob H4<br />
Type<br />
439<br />
Safety Relief Valves<br />
– spring loaded<br />
Type 439<br />
Contents<br />
Chapter/Page<br />
Type 439<br />
Packed knob H4<br />
Flanged connection<br />
Materials<br />
• Available designs 03/02<br />
• Available designs – materials 03/03<br />
How to order<br />
• Numbering system 03/04<br />
• Article numbers 03/06<br />
Pressure temperature ratings<br />
• Metric Units + US Units 03/07<br />
Dimensions and weights<br />
• Metric Units [Threaded connection] 03/08<br />
[Flanged connection] 03/09<br />
• US Units [Threaded connection] 03/10<br />
[Flanged connection] 03/11<br />
Order information – Spare parts 03/12<br />
Available options 03/13<br />
Approvals 03/14<br />
Capacities<br />
• Steam, Air, Water [Metric Units + US Units] 03/15<br />
Determination of coefficent 03/16<br />
of discharge K dr /α w<br />
LWN 481.01-E<br />
03/01