GESTRA NRG 16-19, Руководство по установке

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16
Installation
– continued –
NRG 16-19, NRG 16-27, NRG 16-28
The measuring electrode NRG 16-28 can be directly screwed into Rhombusline steam traps. For this
purpose unscrew the sealing plug and remove the strainer (see Fig. 10 ). Remove any residual grease
or lubricant.
The steam traps can be installed in horizontal pipes or in vertical pipes with downward flow.
Before screwing the measuring electrodes NRG 16-19, NRG 16-27 into the left or right side of the test
chamber VKE 16-1, VKE 16 A remove the sealing plug.
For the test chamber VKE 26 remove the top sealing plug and screw in the measuring electrode.
1. Check sealing surfaces of the steam trap and the test chamber.
2. Put joint ring onto the seating surface of the electrode. Use only the joint ring supplied with the
electrode.
3. Screw the measuring electrode into the steam trap or test chamber and tighten it.
The torques required for tightening when cold are:
NRG 16-19: 60 Nm,
NRG 16-27: 60 Nm,
NRG 16-28: 75 Nm.
Attention
n
The seating surfaces of the steam trap or the test chamber must be accurately
machined.
n
Do not insulate the electrode thread with hemp or PTFE tape.
n
Observe the specified torques for tightening.
Tools
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Open-end spanner, 32 mm A. F.
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Open-end spanner, 30 mm A.F.
n
Open-end spanner, 22 mm A. F.
Molykote ® 111 is a registered trademark of DOW Corning Corp., Midland Michigan, USA