Overview
PLF Series metal-free pumps have PTFE and PFA fluid paths. They are capable of distributing chemicals at temperatures up to 100°C (212°F) and allow for air supply pressures up to 7 Bar (100 psi). The pumps operate with fiber optic sensors. They are available in three models, PLF30, PLF60, and PLF120, which are capable of maximum flow rates of 30, 60 and 120 lpm, respectively.
While White Knight continues to offer and support PLF Series pumps, we recommend users consider PFA Series pumps, which provide better performance, increased flow rates, higher pressure capabilities, improved reliability, extended pump life and warranty periods, as well as shorter lead times. See comparisons below.
Features & Benefits
- Metal-free PTFE and PFA liquid path
- Leak-proof, machined design
- No elastomer O-rings, no leaks, never retorque
- No lubrication in shift mechanisms
- No electric motors, which generate heat
- Various liquid connection options
- Easily replaces competitive products using fiber optic sensors
- Safe, leak-free operation due to no-metal design
- Polypropylene heads
- Minimal parts for durable design
- Class 100 cleanroom assembly, testing, and packaging
- Easy to install and service
- Proven reliable to 400, 300, or 200 million+ cycles for the PLF30, PLF60, PLF120, respectively
- No preventative maintenance during two-year warranty
Operation
PLF Series pumps operate with a solenoid valve and fiber optics that optimize stroke timing by shifting the pump quickly and efficiently to increase durability.
Need shuttle valves or proximity switches?
PSA Series pumps are controlled by shuttle valves.
PXA Series pumps are controlled with proximity switches.
Supply Air
Exhaust Air
Ambient Air
Shift Signal
Liquid Suction
Liquid Discharge
Performance & Dimensions
PLF30 Performance
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PLF60 Performance
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PLF120 Performance
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PFA030 Performance
Click image to enlarge.
PFA060 Performance
Click image to enlarge.
PFA140 Performance
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Specifications
Model |
PLF30 |
PLF60 |
PLF120 |
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|---|---|---|---|---|---|---|
| Max Flow Rate* | 30 lpm 7 gpm |
60 lpm 15 gpm |
120 lpm 35 gpm |
25.7 lpm 6.79 gpm |
66.1 lpm 17.46 gpm |
146.7 lpm 38.75 gpm |
| Size of Air Connection | 1/8 or 1/4 in. FNPT |
1/4 or 3/8 in. FNPT |
1/4 or 3/8 in. FNPT |
1/4 in. FNPT |
1/4 in. FNPT |
3/8 in. FNPT |
| Displacement Per Cycle* | 0.076 liters 0.02 gal |
0.189 liters 0.05 gal |
0.473 liters 0.12 gal |
0.089 liters 0.024 gal |
0.216 liters 0.057 gal |
0.500 liters 0.132 gal |
| Cycles Per Minute* | ≤ 400 |
≤ 320 |
≤ 130 |
≤ 336 |
≤ 318 |
≤ 233 |
| Weight | 2.6 kg 5.7 lb |
5.2 kg 11.3 lb |
17.1 kg 37.6 lb |
2.4 kg 5.3 lb |
4.7 kg 10.4 lb |
15.6 kg 34.4 lb |
| Suction Lift* | 1 m (3 ft) |
1 m (3 ft) |
1 m (3 ft) |
1 m (3 ft) |
1 m (3 ft) |
1 m (3 ft) |
| Sound Pressure** | 72.95 dB(a) 80.35 dB(a) |
75.44 dB(a) 83.49 dB(a) |
81.98 dB(a) 91.60 dB(a) |
69.54 dB(a) 66.58 dB(a)) |
82.74 dB(a) 82.61 dB(a) |
81.98 dB(a) 91.60 dB(a) |
| Sound Power** | 62.42 dB(a) 70.38 dB(a) |
66.94 dB(a) 75.73 dB(a) |
76.37 dB(a) 83.16 dB(a) |
58.44 dB(a) 65.52 dB(a) |
71.92 dB(a) 73.84 dB(a) |
76.37 dB(a) 83.16 dB(a) |
| Max Pressure | 7 Bar (100 psi) |
7 Bar (100 psi) |
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| Max Temperature | 100°C (212°F) |
100°C (212°F) |
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| Fluid Path Materials | PTFE / PFA |
PTFE / PFA |
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| Non-Fluid Path Materials | PTFE / PFA / PP |
PTFE / PFA / PP |
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| Stroke Detection Options | Fiber optic with or without sensor |
Fiber optic with or without sensor, or solid state pressure switch |
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| Leak Detection Options | Fiber optic with or without sensor, or conductivity |
Fiber optic with or without sensor, or conductivity |
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| Electronic Control | Available |
Available |
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Model |
PLF30 |
PLF60 |
PLF120 |
|||
*May vary depending on configuration. Suction lift diminishes over time. Recommended installation level less than 3 ft above source.
**dB Level at 60 psi 50 CPM (top) and 60 psi maximum CPM (bottom). Sound Levels measured in accordance with ISO9614-2:1997.
***Dry-run capable PFASD030 and PFASD060 pumps require flooded suction and may have a reduced warranty unless prior arrangements are made with White Knight. Contact White Knight for details.
