Sequence Of The Steps To Be Performed; Fluid Installation - Burkert 8718 Manuel D'utilisation

7.3. sequence of the steps to be performed
Install and start-up the LFC / LFM in the described sequence:
1. Mechanical and fluid installation
2. Electrical installation
3. Apply pressure with operating fluid
4. Flush and completely deaerate the lines with operating fluid at calibration pressure
5. Regular operating mode
7.4. fluid installation
Danger!
risk of injury from high pressure in the equipment!
• Before loosening the lines and valves, turn off the pressure and vent the lines.
Select the available fluid connections suitable for the maximum flow-rate. Inlet paths are not required.
If required, the devices can also be supplied with fitted fluid connections.
Warning!
danger from leaks!
If flow-rates are low and pressures high, ensure that the system is sealed to prevent incorrect metering or the
operating fluid from leaking.
• To ensure that the seal is secure, observe the mode of operation described below.
To seal the system properly, install the clamping ring screw joints as follows:
→
Fit pipe connections tension-free (if required, use compensators).
→
Use pipe with suitable diameter and smooth surface.
→
Saw the pipe straight and deburr.
→
First push the union, then the support ring (if available) and finally the clamping ring in the stated sequence
onto the pipe.
→
Insert the pipe all the way into the screw joint.
→
Tighten union by hand.
→
Counter with a wrench on the screw-in side (do not put pressure on the device housing) and tighten 1 ¼
revolutions.
28
english
Type 8718, 8719 / 8708, 8709
Installation and Start-up