Veris V110 Installation Instructions

Verabar V110

1.0 SCOPE

These instructions provide procedures for installing the
V110 Verabar flow sensor. Procedures are given for all
industrial flow measurement applications including liquid,
steam and gas service for both horizontal and vertical
piping configurations.

2.0 RECEIVING INSPECTION

The following tasks should be performed as part of the
receiving inspection procedure:

• Check items received against the packing list.

• Check sensor nameplate for proper model number,

serial number and customer number.

• Verify that the actual pipe diameter matches the ID
stated on the sensor nameplate.

• Check the bullet shaped sensor tube for any signs
of damage. Damage to the sensor tube may result
in erroneous flow readings.

• Check the round cover tube for any damage,
especially axial gouges or scratches. Damage to
the cover tube may prevent the ferrule from sealing
properly.

INSTALLATION INSTRUCTIONS

• Check that the pipe is depressurized and drained
prior to installation.

• Check that all pressure containing components are
properly installed and tightened prior to
pressurizing the system.

4.0 INSTALLATION PREPARATIONS

4.1 Location

For the most accurate flow measurement, a minimum
straight run of pipe is required. Table 1 shows the
minimum straight run requirements. If longer straight
runs are available, position the Verabar such that the
ratio of upstream straight run to downstream straight run
is approximately 4 to 1. If straight run lengths are less
than the values stated in Table 1, consult the factory for
additional accuracy and location information. For
additional piping configurations, see Drawing SUB -4521.

Position straightening vanes such that the end closest to
the Verabar is half way between the Verabar and the
closest upstream configuration. For elbow installations,
mount the Verabar in the same plane as the closest
upstream elbow.

3.0 SAFETY PRECAUTIONS

The following tasks should be conducted prior to install­ing the Verabar flow sensor:

• Check maximum operating conditions on the flow
sensor nameplate and verify that they exceed the
maximum conditions of the installation. If any
pressure, temperature or flow limits will be
exceeded, consult the factory before proceeding.

Piping Configuration

Table 1. Straight Run Requirements

4.2 Orientation

Verify the proper sensor orientation by checking for an
“-H” (horizontal piping) or a “-V” (vertical piping) in the
model number on the Verabar name plate.

4.2.1 Horizontal Piping

For air or gas installations, mount the Verabar in the
upper 160° of the pipe to allow any condensate to drain
into the pipe (Figure 1). For liquid or steam installations,
mount the Verabar in the lower 160° of the pipe. This
allows any entrained air to bleed back into the pipe for
liquid applications and allows condensate to collect in
the instrument piping for steam applications.

4.2.2 Vertical Piping

The Verabar may be mounted in any location around the
circumference of the pipe for vertical piping applications
(Figure 1).

Figure 1. Verabar Orientation in Horizontal Pipe

4.3 DP Transmitter/Local Indicator
Location

When choosing a Verabar location, consider the DP
transmitter/local indicator location:

Figure 2. Verabar Model V110

• The transmitter must be mounted below the
Verabar for liquid and steam applications.

• The transmitter must be mounted above the
Verabar for air and gas applications.

4.4 Installation Drawings and Bill of
Materials

Additional information is available in the Installation
Drawings and Bill of Materials VB-7061 (also on the
VeraData CD). It contains standard and alternate
transmitter locations and a complete bill of materials
based on the fluid type and sensor orientation on the
pipe.

5.0 INSTALLATION PROCEDURE

5.1 Drill Hole in Pipe

• Completely depressurize and drain pipe prior to
installation of the Verabar.

• Mark the location of the hole through which the
Verabar will be mounted. Mark the location of the
opposite side support 180° from the first hole (half
the pipe circumference). Use a center punch to
mark the hole to prevent the drill bit from walking
on the pipe.

• Drill the pipe with the proper sized hole per the
following table:

Sensor Size Hole Dia
V110-05 1/2" (13mm)
V110-10 1” (25mm)

• Deburr the hole on the inside of the pipe.

5.2 Weld Threadolets to Pipe

• Loosely assemble the sensor, compression nut,
back ferrule, front ferrule and compression body to
the threadolet (hand tight) and insert the sensor
assembly into the pipe.

• Using the appropriate weld gap (1/16” [1.5mm]
typical), tack weld the threadolet into position
(Figure 3). Assemble the support plug into the
threadolet (hand tight) and tack weld the opposite
end threadolet into position, using the tip of the
sensor for alignment.

Figure 3. Weld Gap

• Remove the sensor and opposite end support plug,
protect threads on the threadolets and finish
welding the threadolets to the pipe per applicable
piping codes.

5.3 Insert Sensor

• Using appropriate pipe thread sealant, install
(completely tighten) the compression body into the
threadolet.

• Slide the compression nut, back ferrule, then front
ferrule, onto the sensor cover tube. The back

ferrule and front ferrule must be in the proper
sequence and orientation as shown in Figure

2. The back ferrule must be next to the

Figure 4. Orientation of Flow Arrow

compression nut with the tapered end pointing
toward the front ferrule. The tapered end of the
front ferrule must point towards the compression
body.

• Slide the sensor, with compression nut and
ferrules attached, into the compression body (do
not tighten).

• Align the head of the sensor so that the arrow
labeled “flow” on the head is in the direction of the
flow in the pipe to within 3° (Figure 4). Maintain
the head in this position for the remainder of the
operations.

• Slide the sensor into the pipe until “Y” dimension
(as shown in Figure 5) is per the following table:

Sensor Size “Y” Dimension
V110-05 4.00" (100mm)
V110-10 5.50” (140mm)

• While maintaining the “Y” dimension, tighten the
compression nut 1-1/4 turns past hand tight.
Verify the alignment of the sensor such that the
arrow labeled “flow” on the head is in the direction
of the flow in the pipe to within 3° (Figure 4). A
crescent wrench or pipe wrench can be applied to
the head of the sensor to make alignment
adjustments.

• Install (completely tighten) the support plug into
the opposite end threadolet. Use appropriate pipe
thread sealant. The tip of the sensor should
protrude into the bore of the support plug.

5.4 Insert Instrument Valves or Manifold

5.4.1 Valves

If the Verabar does not have a valve head, install
instrument valves using proper thread sealant. Be sure
instrument shut-off valves are installed and shut prior to
repressurizing the pipe.

5.4.2 Manifold

If the Verabar has a direct or integral manifold, be sure
the high and low pressure block valves are shut off prior
to repressurizing the pipe.

The Verabar is now properly installed (Figure 5).

Figure 5. Installed V110

Periodic Maintenance

The assembly should be periodically checked. Verify
that no leaks are present.

6315 Monarch Park Place • Niwot, CO 80503 USA • Phone: [phone] IO -110 VWI-CS-021 REV B (6/08)
Fax: [phone] • Email: [e-mail] • Website: www.veris-inc.com Printed in USA