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PRECISION/NAPCO
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Other Precision/Napco Items |
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VACUUM PUMPS |
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DIRECT DRIVE |
PRECISION DIRECT DRIVE VACUUM PUMPS
Precision Direct Drive Vacuum Pumps are available in 25 models with free air displacement ranging from 0.7 to 42.4 CFM (20 to 1201 LPM) at 60 Hz, and can be used as roughing pumps for direct evacuations or as fore pumps in conjunction with diffusion pumps. Precision Direct Drive Pumps are designed to be quiet — operating with minimal noise and vibration. All of Precision direct drive pumps come equipped with an anti-backstreaming baffle and gas ballast. Corrosion resistant models are available for extreme environment and hard use applications. Explosion-proof models feature sealed motor and hardwired electrical connections, which require installation by a qualified electrician. There are also four combined corrosion-resistant and explosion-proof models for use in extreme conditions.
General Features
Quiet, efficient operation
Available in 25 models with free air displacement ranging from 0.7 to 42.4 CFM (20 to 1201 LPM) at 60Hz
Pressures of 760 torr down to 1 x 10-4 torr.
Small profile
Easy to maintain
Performance Specifications
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Models |
P420 Series |
P765 Series | P1420 Series | |
| Stages |
2 |
2 |
2 |
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| Motor (HP) |
3/4 |
3/4 |
3/4 |
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| Rotational Motor Speed (Nominal RPM) 60 Hz |
3450 |
3600 |
1800 |
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| Rotational Motor Speed (Nominal RPM) 50 Hz | 1500 | 1500 | 1500 | |
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Free Air Displacement CFM (liters/minute) 60 Hz |
20.7 (586) |
30 (850) |
60 (1699) |
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Free Air Displacement CFM (liters/minute) 50 Hz |
14.6 (413) |
22.3 (660) |
42.4 (1201) |
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| Ultimate Partial Pressure1 according to Pneurop Specifications |
1.3 x 10-3 mbar 1 x 10-4 torr 1 x 10-1 Micron Hg |
1.3 x 10-3 mbar 1.5 x 10-4 torr 1.5 x 10-1 Micron Hg |
1.3 x 10-3 mbar 1.5 x 10-4 torr 1.5 x 10-1 Micron Hg |
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Water Vapor Pumping Capacity grams/hour |
90 (60 Hz) 90 (50 Hz) |
700 (60 Hz) 700 (50 Hz) |
1200 (60 Hz) 1200 (50 Hz) |
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| Oil Capacity lbs |
1.03 quart |
3.8 quart |
7.4 quart |
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| Unit Weight |
61.6 |
134 |
205 |
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Inlet and Exhaust Nipple |
60Hz |
DN 25 |
DN 40 |
DN 40 |
| 50Hz |
DN 25 |
DN 40 |
DN 40 |
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| Dimensions L x W x H in" |
12 x 12 x 18 |
36 x 10 x 27 |
40 x 13 x 28 |
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| Shipping Weight lbs |
75 |
194 |
275 |
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Catalog No. Standard 120V1 |
512202331 | 512202371 | 512202401 | |
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Catalog No. Chemical Resistant 120V1 |
512202351 |
512202381 |
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| Catalog No. Explosion Proof 120V1 | 512202341 | 512202391 | 512202411 | |
| Catalog No. Explosion Proof/Chemical Resistant 120V1 | 512202361 | 512202241 | ||
1Dual Voltage-Factory preset for 120V applications.
Tubing not included
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