BERTHOLD TECHNOLOGIES LB 3602, Руководство по эксплуатации

Страница: 21 / 43

LB 379
21
5.3 Pressure Equipment Directive 2014/68 / EU
The LB 379 measuring path is manufactured and put on the market in accordance with the
Pressure Equipment Directive 2014/68 / EU. Due to its design [DN 65 PN 10 (nominal
diameter DN 65, nominal pressure 10)], the measuring path falls under Article 4 (3). The
measuring path can only be used for measurements of liquids. The maximum operating
pressure should not be higher than 10 bar. The maximum operating temperature is 120°C.
Since different liquids, such as acids, alkalis, aggressive and abrasive media, are to be
measured, different linings (PVDF, rubber) are available to protect the measuring path.
The responsibility of choosing the right lining lies with the operator.
The LB 379 measuring path is pressurized twice. The leak test is carried out with 2 bar air.
To improve the detectability of leaks and to protect personnel, the test is carried out under
water. The actual pressure test is carried out with 15.3 bar water.
As standard, the LB 379 measuring path is equipped with water cooling. The connection of
the water cooling has the size R ¼ ". The maximum operating pressure is 6 bar. Only clean
cooling water may be used so that blockage or obstruction of the water cooling can be
excluded.
On request, material certificates according to EN 10204 3.1 and pressure test certificates
can be issued.
For the measuring section LB 379 with the pipe dimensions DN 40 PN 16, the procedure is
the same as before with DN 65.