| Phosphate Ester Flow Rate Monitors |
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Three Materials of Construction: Select from aluminum, brass or stainless steel construction to meet system requirements. |
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Rugged and Reliable: These monitors are constructed with all metal pressure vessels, allowing safe, permanent, installation in industrial systems. |
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Unrestricted Mounting: Allows the designer to install the monitor in any orientation; horizontal, vertical or inverted. |
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High Pressure Operation: The magnetically coupled follower allows operation to 6000 PSIG. |
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Twenty-Three Different Ports Available: Standard selection of NPT, SAE and BSP ports permits system design versatility. |
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Multi-Use: Factory calibrated for phosphate ester. These versatile monitors can be used to verify hydraulic power unit outputs and to test machinery and tools for proper fluid flow rates. |
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Low Cost Precision: Mid-scale measuring accuracy: within ±2.5%. Full-scale accuracy: within ±4%. |
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| ENGINEERING SPECIFICATIONS: The Phosphate Ester in-line flow rate monitor shall:
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be factory calibrated for phosphate ester measurements. |
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use the variable annular orifice technique with compression spring recovery. |
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not require inlet or outlet stright plumbing, or require vertical pipe mounting. |
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have a measuring accuracy of ±2.5% of full scale in the center third of the measuring range, and ±4% of full scale accuracy over the entire flow measuring range. |
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have a stainless steel sharp-edged orifice. |
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be Lake Monitors No. P _ _ - _ _ _ - _ _. |
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| MATERIALS OF CONSTRUCTION: Wetted Components
| Component |
Aluminum |
Brass |
Stainless Steel |
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High-pressure casing, end ports and tapered shaft |
Aluminum |
Brass |
#304 Stainless Steel
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Seals |
EPR |
EPR |
EPR |
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Transfer Magnet |
Teflon® coated Alnico |
Teflon® coated Alnico |
Teflon® coated Alnico |
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Floating Orifice Disk |
Stainless Steel |
Stainless Steel |
Stainless Steel |
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All other internal parts |
Stainless Steel |
Stainless Steel |
Stainless Steel |
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MATERIALS OF CONSTRUCTION: Non-Wetted Components
| Component |
Aluminum |
Brass |
Stainless Steel |
|
Window Tube |
Pyrex |
Pyrex |
Pyrex |
|
Window Seals |
Teflon® |
Teflon® |
Teflon® |
Teflon, Viton and Kalrez are registered trademarks of duPont de Nemours & Co. |
PERFORMANCE:
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Measuring Accuracy: ±2.5% of full-scale in the center third of the measuring range; ±4% of full-scale over the entire scale range. |
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Repeatability: ±1% of full scale |
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Pressure Differential: less than 30 PSIG |
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Maximum Operating Temperature: 240ºF (116ºC) Note: for operation to 600ºF (316ºC) alternate o-ring material will be required. |
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Maximum Operating Pressure: Aluminum and Brass monitors: 3500 PSIG (240 Bar) Stainless Steel monitors: 6000 PSIG (410 Bar) |
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Flow Range1: 0.1-130 GPM (0.4-490 LPM) |
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Standard Calibration Fluids: DTE 25 @ 110ºF, 0.873 sg. Monitors are density corrected to 1.16 sg. |
1 To determine approximate measuring ranges multiply the range listed in the Liquid Flow Rate section of Lake's Guide to standard monitor numbers by 0.93. For example, a P3A6WB10 would have a scale range to 10 GPM * 0.93 = 9.3 GPM at full scale. |
| MECHANICAL: |
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DIM |
Series 3 |
Series 4 |
Series 5 |
Series 5 |
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A |
1-7/8"
(48mm) |
2-3/8"
(60mm) |
3-1/2"
(90mm) |
3-1/2"
(90mm) |
|
B |
6-9/16"
(167mm) |
7-5/32"
(182mm) |
10-1/8"
(258mm) |
12-5/8"
(322mm) |
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Port Sizes |
NPTF:1/4",3/8",1/2"
SAE:#6,#8,#10
BSP:3/8",1/2" |
NPTF:3/4",1"
SAE:#12,#16
BSP:3/4",1" |
NPTF:1-1/4",1-1/2"
SAE:#20
BSP:1-1/4" |
NPTF:2"
SAE:#32
BSP:2" |
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| PRESSURE DIFFERENTIAL VS FLOW RATE: |
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