KMC Controls VEB-4303-SDL Series Installation Manual

Mounting

1. Clean the lines upstream from the valve. Remove
any debris larger than 0.06" (.015 mm).
2. Align the valve's flow indicator with the system
flow.
3. Mount the valve so the actuator is positioned over
valve.
CAUTION
To prevent condensation from dripping onto the
actuator housing, mount the valve with the actuator
in the upright position or, at most, at a 45° angle. A
45° angle is recommended in steam applications.
4. Seal valves with approved pipe sealant.
5. Using two wrenches, secure the valve to the pipe.
Torque should not exceed 75 ft-lbs. (102 N
6. Eliminate air from the system to keep the valves
full of fluid during operation.
NOTE: If the system experiences large amounts of
debris, steps should be taken to keep the
system clean.

Wiring

Connect wiring according to the diagram. See the
Accessories/Repair Parts section for connection
accessories.
The actuator's wiring cover has two 5/8" diameter
openings with shutter bushings to provide support
Operate with Increasing Voltage
in Clockwise (CW) Direction
Operate with Increasing Voltage in
Counterclockwise (CCW) Direction
VEB-4303*SDL Series 2-Way, Steam-Rated, NPT Control Ball Valves
2-Way, Steam-Rated, NPT, Control Ball Valves (
Installation Guide
m).
•
UP
Action:
Full CW = Valve Closed
Full CCW = Valve Open
SYSTEM FLOW
CAUTION
To avoid overheating the valve's actuator in steam
applications, be sure to use standard fiberglass
insulation to insulate the pipe near the valve. Also,
mounting the valve at a 45° angle is recommended
in steam applications.
CAUTION
Using mineral oil lubricants or other incompatible
substances in system fluids may damage EPDM
rubber seals in valves. Before using any lubricant or
additive in a water or ethylene glycol base, consult
the substance manufacturer for compatibility with
EPDM (Ethylene Propylene Diene Monomer).
for 0.125" through 0.4" diameter wire/cable. Use the
HMO-4518 for 1/2" flexible conduit, the HMO-4520
compression connector for plenum cable, or the
HMO-4526 female connector for 1/2" conduit.
1
⁄
3
VEB-4303*SDL Series
Gear Disengagement
Button (see Caution
on the next page)
Installation Guide
)
"
4