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ASTM D4539 Low Temperature Flow Test (LTFT) is generally recognized as a better predictor of diesel fuel filter plugging temperature than the more commonly used ASTM D6371 Cold Filter Plugging Point (CFPP). Please review ASTM D975-08a Appendix X5.1.3 for more Historical Background. Choose from a variety of automated and manual units that Lawler manufactures.
Refrigeration is provided by two hermetically sealed compressors in a cascade configuration using ozone friendly refrigerants. Temperature control is provided by a programmable digital temperature controller.
The insulated air baths have a top opening hood for easy access and minimum of temperature upset when removing samples. The test beakers are conveniently held in a support rack within the cold chamber for most uniform sample cooling. The cabinets have casters for mobility.
Several models are available. They are:
PROGRAMMABLE COLD LIQUID BATH
Model 265-12L is a 12 sample capacity mechanically refrigerated liquid bath, operating between +15 to -55°C, recommended for greater temperature stability versus air chambers. It is a mechanically agitated floor model liquid bath. The ramping controller displaying both set point and actual temperature, maintaining the bath temperature within ±0.1°C of set point.
Model 265-4L is a smaller bench model with 4 sample capacity.
PROGRAMMABLE COLD AIR BATHS
Model 265-10A is a 10 sample capacity mechanically refrigerated air bath capable of operating form +15°C to -55°C, recommended for eliminating the inconvenient and flammable alcohol bath medium of liquid baths. The digital programmable controller, displaying both set point and actual temperature, maintains the bath temperature within ±0.1°Cof set point. The air chamber temperature uniformity is maintained by forced air blower and is a floor model.
Model 265-22A is a larger version of the Model 265-10A holding up to 22 samples.
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Model: 265-22A
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Model: 265-4L
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265-4L
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4
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Manual - Liquid
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+15ºC to -55ºC
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Bench
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28x28x15
(71x71x38)
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250/18
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265-10A
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10
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Manual - Air
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+15ºC to -55ºC
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Floor
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28x36x43
(71x91x109)
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440/14
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265-12L
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12
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Manual - Liquid
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+15ºC to -55ºC
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Floor
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28x36x43
(71x91x109)
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450/41
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| LT-2M |
Test Assembly (LT-10, 300 mL beaker, LT-27M, LT-25M, LT-26M ). For manual units. (1 per position) |
| LT-10 |
Filter Assembly (filter body, o-ring, filter screen, brass washer, teflon washer, brass locknut), ea |
| LT-11B |
Filter screens, per dozen |
| LT-11C |
O rings, per dozen |
| LT-11D |
Teflon washer, per dozen |
| LT-12 |
300 mL tall sample beakers, per dozen |
| LT-13M |
400 mL tall receiver beaker (180 mL by 10 mL), each. For manual units. (only 1 needed) |
| CF-17 |
Vacuum pump (115 VAC) (only 1 needed, select voltage). For manual units |
| CF-17A |
Vacuum pump (220 VAC) (only 1 needed, select voltage). For manual units |
| VP-1A |
4 Vacuum gauge, 1% F.S. accuracy, each. (only 1 needed). Method requires 20 kPa vacuum |
| VP-2 |
Precision vacuum regulator, each. For manual units. (only 1 needed) |
| LT-18M |
Table top bracket for gauge & regulator, each. For manual units. (only 1 needed) |
| LT-22M |
Stopper Assembly (flex tube, pinch clamp, 90 inlet tube and 90 outlet tube) Manual units (only 1 needed) |
| LT-25M |
Replacement Cover for 300 mL sample beaker, 1 hole (1 per position). For manual units |
| LT-26M |
Repl. Socket joint 90 glass tube with flex tubing and B/S clamp, each (1 per position) |
| LT-27M |
Replacement Glass Stem with Ball Joint and flex tubing (1 per position). For manual units |
| LT-CSFT |
Replacement rack to hold 500 mL sample jars for D7501 Cold Soak Filtration Test |
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Specifications are subject to change without notice. |
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