HEROSE 08411, Руководство по эксплуатации, Страница: 25 / 80

Operating instructions
herose.com
19
4.9 Lifetime
The user is obligated to use Herose products only for their intended purpose.
In this case, a technical service life may be assumed in accordance with the underlying product standards
(e.g. EN1626 for shut-off valves and EN ISO 4126-1 for safety valves).
The technical service life can be restarted several times through the exchange of wearing parts within the
context of the maintenance intervals, and lifetimes of more than 10 years can be achieved.
If products are stored for a period exceeding 3 years, then the synthetic material components and
elastomer sealing elements fitted to the product should be replaced as a precautionary measure before
mounting and use.
5 Assembly
5.1 Installation position
≤ DN150
With regard to the installation position, pay attention to the arrow showing the flow direction. If the valve is
installed in a horizontal pipeline, a vertical position of the screen is recommended (cover facing
downwards).
DN200
With regard to the installation position, pay attention to the arrow showing the flow direction. If the valve is
installed in a horizontal pipeline, a vertical position of the screen is recommended (cover facing
downwards).
5.2 Notices regarding the mounting

Use suitable tools.
 Allen keys of sizes 6, 8, 10, 14, 19;
 Open-ended spanners;
 Torque wrench;
 TIG welding machine;
 Oxy-fuel welding machine;

Clean tools before the mounting.
 Use suitable transport and lifting equipment for the mounting.
 Open the packaging only directly before the mounting. Freedom from oil and grease for oxygen
(O
2
).
Valves for oxygen are permanently marked with “O
2
”.

Only install the valve if the maximum operating pressure and operating conditions of the plant
correspond to the marking on the valve.
 Remove protective caps or covers before mounting.
 Inspect the valve for dirt and damage.
DO NOT install a damaged or dirty valve.
 Avoid damaging the connections.
The sealing surfaces must remain clean and intact.

Seal the valve with suitable seals.
No sealant (sealing tape, liquid sealing tape) may enter the valve.
Respect the suitability for use with O
2
.
 Connect pipelines in a force-free and torque-free manner.
Stress-free mounting.

In order to ensure trouble-free operation, no impermissible static, thermal or dynamic stresses
may be transmitted to the valve. Observe reaction forces.
 Temperature-dependent changes in length in the pipework system must be compensated with
expansion joints.
 The valve is supported by the pipework system.
 The valve must be protected against dirt and damage during construction work.
 Check the leak-tightness.