11
Marking/testing
Component test mark on safety valves:
TÜV symbol
Safety valve
Year of component test
Component test number
Narrowest flow cross-section
Code letters:
D/G
designed for steam/gas
F
designed for liquids
F/K/S designed for blowing off air from tanks for liquid,
granular or dust goods
Coefficient of discharge
Set pressure in bar
All valves are tested by us for pressure resistance and tightness.
Safety valves are adjusted and sealed at the required setting pressure. The iden-
tification with the TÜV component test mark and the CE mark with the designated
office is provided on the valve bonnet and cannot be removed. The identification
also contains the necessary details according to DIN EN ISO 4126-1.
Overflow valves can be supplied with a fixed setting and sealed or adjustable with
a spring range. The valves are marked, in addition to the CE marking, with the exact
type name, setting pressure and/or spring range as well as all design relevant data
on the bonnet.
Assembly and maintenance instructions - 400 / 400.5
TÜV. SV. xx-xxxx.xx. D/G
www.goetze-armaturen.de
0,xx. xx
F
F/K/S