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Assembly and maintenance instructions
Safety valves
810/410, 812/412, 813/413, 690/691
1
General Notes of Safety
• Only use the valve:
- for the intended purpose
- in satisfactory condition
- with respect for safety and potential hazards.
• Always observe the installation instructions.
• Faults that may impair safety must be addressed immediately.
• The safety valve is exclusively designed for the range of application described
in these installation instructions. Any other use, or a use exceeding the range of
application shall be considered as improper use.
• The manufacturer's warranty shall be null and void if the sealed cover is
removed.
• All assembly work is to be carried out by authorized specialist staff.
2
General Notes
Safety valves are high-quality fittings which require a particularly careful handling.
The sealing surfaces are precision-machined at the seat and cone to attain the re-
quired tightness. Always avoid the penetration of foreign particles into the valve
during assembly and during the operation. The tightness of a safety valve can be
impaired when using hemp, Teflon tape, as well as through welding beads, among
other things. Also rough handling of the finished valve during storage, transport and
assembly can result in a safety valve leaking. If the safety valves are painted, make
sure that the sliding parts do not come into contact with the paint.
3
Range of Application
Safety valve series 810/410, 812/412 and 690/691 for discharging air and other
neutral, non-poisonous and non-flammable gases freely into the environment.
Valves used for protection against excess pressure in pressure tanks which are in
compliance with the specifications of the AD-2000 data sheet A2, or as safety de-
vices to protect pressure equipment in compliance with the EC Pressure Equipment
Directive.
Assembly and maintenance instructions - 810/410, 812/412, 813/413, 690/691 | Version: 06/2023 · V02
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