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High Temperature Flow Rate Monitors
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Multi-Application: Uses include: barrel heating fluids, thermal transfer fluids and non-steam water monitoring.
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Rugged and Reliable: Designed as a hydraulic service tool, this monitor will provide years of maintenance free performance.
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Three Materials of Construction: Select from aluminum, brass or stainless steel.
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High Pressure Operation: The magnetically coupled follower allows operation to 6000 PSIG and use with opaque liquids.
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Unrestricted Mounting: Allows the designer to install the monitor in any orientation -- horizontal, vertical or inverted.
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Twenty-three Different Ports Available: Standard selection of NPT, SAE and BSP permits system design versatility.
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Good Viscosity Stability: A thin (.03") sharp-edged orifice provides excellent stability of readings to a minimum of 500 SVS.
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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 high temperature in-line flow rate monitor shall:
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use the variable annular orifice technique with compression spring recovery.
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not require inlet or outlet straight 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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have a minimum temperature rating of: H-series 400ºF (204ºC); J-series 600ºF (315ºC)
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be Lake Monitors No.: H _ _ - _ _ _ - _ _ for 400ºF (204ºC) applications; J _ _ - _ _ _ - _ _ for 600ºF (315ºC) applications.
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MATERIALS OF CONSTRUCTION: Wetted Components
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Component
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Aluminum
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Brass
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Stainless Steel
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High-pressure casing, end ports and tapered shaft
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Aluminum
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Brass
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#304 Stainless Steel
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Seals
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Viton® w/Teflon® backup
Kalrez® w/Teflon® backup
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Viton® w/Teflon® backup
Kalrez® w/Teflon® backup
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Viton® w/Teflon® backup
Kalrez® w/Teflon® backup
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Transfer Magnet
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Teflon® coated Alnico
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Teflon® coated Alnico
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Teflon® coated Alnico
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Floating Orifice Disk
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Stainless Steel
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Stainless Steel
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Stainless Steel
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All other internal parts
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Stainless Steel
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Stainless Steel
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Stainless Steel
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MATERIALS OF CONSTRUCTION: Non-Wetted Components
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Component
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Aluminum
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Brass
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Stainless Steel
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Window Tube
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Pyrex
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Pyrex
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Pyrex
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Window Seals
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Teflon®
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Teflon®
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Teflon®
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Teflon, Viton and Kalrez are registered trademarks of duPont de Nemours & Co.
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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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Flow Measuring Range: 0.1-150 GPM (0.4-560 LPM)
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Maximum Operating Pressure1: Aluminum and Brass monitors: 3500 PSIG (240 Bar) Stainless Steel monitors: 6000 PSIG (410 Bar)
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Maximum Operating Temperature: H-series: 400ºF (204ºC); J-series: 600ºF (315ºC)
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Pressure Differential: See graphs, Gases: See Pneumatics
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Standard Calibration Fluids: Oil monitors: DTE 25 @ 110ºF (43ºC), 0.873 sg; Water monitors: tap water @ 70ºF (21ºC), 1.0 sg; Air monitors: air @ 70ºF (21ºC), 1.0 sg and 100 PSIG (6.8 Bar)
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1 Note: See Temperature/Pressure De-rating chart below.
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MECHANICAL:
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DIM
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Series 3
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Series 4
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Series 5
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Series 5
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A
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1-7/8"
(48 mm)
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2-3/8"
(60 mm)
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3-1/2"
(90 mm)
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3-1/2"
(90 mm)
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B
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6-9/16"
(167 mm)
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7-5/32"
(182 mm)
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10-1/8"
(258 mm)
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12-5/8"
(322 mm)
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Port Sizes
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NPTF: 1/4", 3/8", 1/2"
SAE: #6, #8, #10
BSP: 3/8", 1/2"
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NPTF: 3/4", 1"
SAE: #12, #16
BSP: 3/4", 1"
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NPTF:1-1/4",1-1/2"
SAE: #20, #24
BSP: 1-1/4", 1-1/2"
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NPTF:2"
SAE: #32
BSP: 2"
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PRESSURE DIFFERENTIAL VS FLOW RATE:
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