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MECHANICAL INSTALLATION
Installation for DN15-32
IMPORTANT: Hold valve with a pipe wrench by
hexagonal fitting ONLY. Do NOT handle the valve
body with the pipe wrench; product damage may
result.
Refer VPI series PICV Product Datasheets for more
details on valve and actuator dimensions.
1. Clean the lines upstream of particles larger than
1/16 in. diameter (welding slag, pipe scale and
other contaminants) to properly flush the system.
2. Proceed with installation once the system
specifics (expansion/contraction of the system
and its medium as well as operating pressures) are
within tolerances.
3. Eliminate air from the system.
4. See, Figure 1 to familiarize yourself with the valve
and its components. The Valve body (D) is the
housing marked with an arrow to show flow
direction. The Flow regulator (C) which is pre-
installed in valve body, regulates flow. Pressure
ports (A) facilitates user to gauge pressure across
ends. The Plugs (B) comes with valve models
without pressure ports. See VPI series PICV
Product Datasheets for details on models with and
without pressure ports.
Figure 1. DN15-32 Valve Components
IMPORTANT: Flow arrow must point in the direction
of the flow for proper operation. Valves must be
installed avoiding unnecessary pull or twist in the
valve housing.
5. Install the valve housing with the flow directional
arrow pointing in the correct direction.
6. For threaded connections please clear threads on
both valve and piping of debris. Honeywell
recommends thread or pipe sealant (Permabond
A1044 or equivalent). When using Teflon tape, it is
recommended to use 4-6 rounds of tape applied
tightly in clockwise rotation. When using hemp as
VPI PRESSURE INDEPENDENT CONTROL VALVES & ACTUATORS
pipe sealant, ensure no strands are left in the valve
or piping.
Flow Setting
The Flow regulator is provisioned with dial with scale
settings to allow user to set desired flow rate. For more
information about flow rate as per dial settings, see
Table 1. Flow Chart for DN15-32. The procedure for
scale setting is as follows:
1. Set the desired flow rate by adjusting scale setting
of the dial with a special adjustment key.
Figure 2 Flow Setting
2. For DN15/20 (LF) and DN32 valve models, large
white digits, numbered 1 to 5, indicate full turns
and digits from small sub-dial, numbered 0 to 9,
indicate 1/10 of full turn.
Figure 3 Dial Gauge for DN 15/20 (LF) and DN32
3. For DN15/20/25 (HF) valve models, scale is
opposite. Here large white digits, numbered 0 to 9,
indicate 1/10 of full turn and small digits from
sub-dial, numbered 0 to 5, indicate full turn.
Figure 4 Dial Gauge 3.
4. Install the compatible and required actuator as per
application and/or system design. See Installation
of Actuators compatible with DN 15-50 for more
details on how to install the actuator.
3
For DN15/20/25 (HF)
31-00383-01
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