VPI PRESSURE INDEPENDENT CONTROL VALVES & ACTUATORS
5
31-00383-01
Installation of DN50-250
IMPORTANT:
Hold threaded 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.
The procedure to install for DN 50
–
250 is as follows:
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.
Valves are marked to show flow direction, see Figure 9. Install the valve housing with the flow directional arrow
pointing in the correct direction.
Figure 9. Flow direction icon on DN50-250 valve
IMPORTANT:
Flow arrows must point in the direction of the flow for proper operation.
5.
Valves must be installed avoiding unnecessary pull or twist in the valve housing.
6.
For flanged connections make sure if both flange surfaces are clear.
7.
Flange ends are compatible with DIN steel flanges PN10, PN16, PN25, and/or PN40 according to EN1092-1 or
ANSI steel flanges class 150 and/ or 300 according to ASME B16.5. depending on the product ordered. Flanges
are not supplied by Honeywell.
See VPI series PICV Product Datasheets for more details on the flange selection of DN50-250 valves.
8.
O-rings are supplied with the valve body and are used to seal connections. It is recommended to grease O-rings
with silicone grease.
IMPORTANT:
Never use mineral oil or petrol-based grease or oil on the O-rings.
9.
Please make sure these are properly placed in O-ring grooves on valve inlet and outlet, before installing the
housing.
10.
Please note that DN200-
250 (8”
-
10”) contains two O
-
ring grooves. Use the inner groove for DN200 / 8” flanges
and outer groove for DN250 / 10” flanges.
Figure 10. Groove location on DN200-250 valve
Install the compatible and required actuator as per application and/or system design. See
for more details on how to install the actuator.