KINNEY KTC SERIES, Installation, Operation And Maintanance Manual

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10
Vacuum Gauges
The vacuum gauge(s) to be installed on the pump must be selected to meet the requirements of the particular
pump application. Two general types of vacuum gauges are used for the testing of vacuum equipment, total pres-
sure reading, such as thermocouple gauges, and partial pressure reading McLeod gauges.
The McLeod gauge indicates the partial pressure of permanent gasses. It does not indicate the component of pres-
sure due to vapor such as water vapor. It is not greatly affected by vapor contamination unless the contamination
pressure is quite high. It is most useful in confirming pump performance and for determining the absence or pres-
ence of leaks. A high thermocouple gauge reading may indicate that the pump is contaminated or that it leaks, or
both. A high McLeod gauge reading means that a leak is present.
OPERATION
General
WARNING
Do not operate the pump in an enclosed area unless the pump discharge is filtered or piped to open air. Prolonged
inhalation of oil mist or vapors is a health hazard.
Do not block or restrict the flow of gas from the pump discharge. Backpressure within the pump could cause se-
vere damage.
The belt guard must be properly secured to the pump at all times while the pump is running.
Prestart Checks
Before starting the pump check the following items:
1) The installation has been made in accordance with the installation section of this manual.
2) The pump has been filled with oil, in accordance with the installation section of this manual.
3) If the pump has been idle for a month or more, turn the pump by hand two or more revolutions to distribute oil
internally through the pump.
4) The temperature of the pump oil is 60°F (16°C) or above. Special heaters may be required for starting at lower
temperatures. Consult Kinney for recommendations.
5) Cooling water is available (for KTC-112 only). Do not start the cooling water flow until the pump has operated a
few minutes.
6) Drive belts are correctly tensioned. (See V-Belt Drive in Maintenance Section).
Direction of rotation is correct.
Starting the Pump
1) Close inlet isolation valve.
2) Close the vent valve if one is used.
3) Start the pump.
4) Open and adjust the cooling water flow as shown in the specifications.
5) Adjust the gas ballast (See “Gas Ballast”).
6) Maintain oil level 3/8” up from bottom of sight glass when running at blank off.
Run the pump at blank off for 5-10 minutes and then with full gas ballast for 10-15 minutes before opening the suc-
tion of the pump to a higher air pressure.
Stopping the Pump
1) Close the isolation valve.
2) Vent pump to atmosphere through vent (air admittance) valve.
3) Close gas ballast valve.
4) Stop the pump.
5) Shut off cooling water.
6) Close vent valve.
Handling Large Quantities of Water
Use of the gas ballast valve enables Kinney pumps to handle small to moderate amounts of water and other vapors
in the suction gas stream. See the Gas Ballast section below.