Specifications

Dekker Vacuum Technologies, Inc. – DuraVane/12 12
Mixing of lubricants is not recommended due to possible incompatibility. Signs of incompatibility are
extreme soupiness from the grease relief drain or from the shaft opening. If changing a lubricant,
grease and then re-grease after 100 hours of service.
Frequency/volume of greasing is based on service conditions, speed and frame size. See tables below.
Standard conditions: 8 hour day operation, normal or light loading, clean environment at a 100 ºF
maximum ambient temperature.
Severe conditions: 24 hour operation or shock loading, vibration, dirty or dusty environment, running
at a 100 ºF to 120 ºF ambient temperature.
Extreme conditions: heavy shock, vibration, or dust.
Lubrication Frequency – Ball Bearings
Roller bearings – divide time by 2
Speed
(RPM)
NEMA
Frame
Standard
Conditions
Severe
Conditions
Extreme
Conditions
1800
182-215
3 years
1 year
6 months
1800
254-365
2 years
6-12 months
3 months
1800
404-449
1 year
6 months
1-3 months
3600
ALL
6 months
3 months
1 month
MAINTENANCE SCHEDULE
To help ensure trouble-free equipment operation a basic maintenance schedule consisting of the
following system checks is recommended.
First 8 hours operation
Check oil level and inlet filter element. Check discharge pressure.
Daily
Check oil level daily, sight glass should be half full when pump is stopped. Check inlet filter if required.
Weekly
Inspect inlet filter and replace if necessary.
500 hours operation
When not using factory recommended Duratex oils, change oil every 2-3 months (500 hours of
operation) or when oil darkens. Drain oil when hot, using caution, and properly dispose of oil.
Replace oil filter (if equipped).
1000 hours of operation
When using specially formulated Standard Duratex oils, oil should be changed every 6 months (1000
hours of operation) or when oil darkens. Drain oil when hot, using caution, and properly dispose of oil.
Replace oil filter (if equipped).
2,000 hours operation
When using specially formulated Synthetic Duratex Long-life oils, oil should be changed every 6
months (or 2000 hours of operation) or when oil darkens. Drain oil when hot, using caution, and
properly dispose of oil.
Replace exhaust filter.
Replace oil filter (if equipped).
Remove debris from pump body, motor fan guard and heat exchanger (if equipped).
50,000 hours operation
Replace pump vanes.
Lubrication Volume
NEMA
Frame
Volume
(Cubic inches)
182-215
0.5
254-286
1.0
324-365
1.5
404-449
2.5