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3) MAX. SUCTION PIPE LENGTH (VKN SERIES)
Allowable pipe length for self-priming operation is within 0.7 meter.(VKN083A,
VKN085A, VKN085H and VKN095H: Max. 0.6 m)
Note:
Max. suction pipe length is inversely proportional to the square of diameter if it
differs from standard diameter.
INSTALLATION --------------------------------------------------------------
1) Coolant pump is for indoor use, only,
Don't use it outdoor.
2) Install the pump in a location to allow for inspection and maintenance work. The place where the
pump is installed should be well ventilated and free of fluid spills.
3) Install the pump on a horizontal flat surface.
4) Install pump where the ambient temperature is between -20°C to +40°C. (VKN Series and
VKS152AC: from 0°C to +40°C)
5) Two mounting bolts, placed diagonally opposite each other, are sufficient for installation. But,
because installation is easier if four bolts are available, four have been provided.
6) Install the pump upright, vertical to the surface of the water, as shown in the drawing on the left. Do
not install it below the surface of the water, or parallel to or at an oblique angle to the water's surface.
7) The VKN series are designed so that the possible fluid leaking through the shaft seal is drained to
protect the motor, this occurs when the shaft seal (mechanical seal) is worn or damaged. Proper
steps must be taken in advance for drainage of this leakage back to the oil or fluid tank.
8) In case of the immersion type (VKS, VKP, VKR, series) it is necessary to make the hole for the oil
reservoir slightly larger in diameter than the outside diameter of the pump section.
9) The VKP113A, VKP115A, VKP073J to 093J, VKP075J to 095J, VKR series and VKS series both
have a suction port at the bottom. The distance to the bottom of the tank should be larger than the
value shown in the outline.
PIPING ------------------------------------------------------------------------
1) The piping should be as short as possible, with minimum bends, elbows, joints and valves. Be sure to
use pipes of the standard diameters.
VKN, VKP093A, 095A (J, T)
VKN, VKP055～095H
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