Using the Optional Insertion/Extraction Tool
Page 11 June 2018 VRX-UM-02217-EN-04
USING THE OPTIONAL INSERTION/EXTRACTION TOOL
The insertion/extraction tool is an optional, separate device that can be used on any VN2000 Hot Tap Insertion Vortex meter,
regardless of whether it is metering liquids, gases or steam. The purpose of the tool is to aid in installing or removing a meter
from flow that is under pressure. Attach the tool to the meter before making any adjustments to the meter itself.
The tool has two clamp assemblies:
• The clamp assembly with the larger cradle, located at the bottom of the tool, secures the meter’s seal assembly and
prevents it from moving.
• The clamp assembly with the smaller cradle, located at the top of the tool, secures the meter’s shaft.
Figure 4: Insertion tool attached to VN2000 meter and seal assembly
Using the Tool to Install a Meter
1. Lay the tool on its side with the threaded spindle facing you and the cradles of the clamp assemblies facing up.
2. Lay the insertion meter into the clamp cradles, with the bottom (larger) clamp assembly around the meter’s seal assembly,
just below the machined step on the seal, and the upper (smaller) clamp assembly around the meter shaft, 2 in. down
from the top of the shaft.
3. Secure the tops of the clamp assemblies to the cradles with the bolts provided. Make sure both bolts are tightly secured.
4. Loosen the large hex nut to allow the probe to move. Make sure the large hex nut is completely o the threads of the
seal assembly
5. Use a standard 1-1/8 in. socket wrench to turn the nut on the end of the threaded spindle to retract the probe until the
insertion end is within the sealing unit.
6. Apply plumber’s tape to the threaded end of the meter shaft.
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