High temperature flow meter

High temperature flow meter

Enables flow monitoring of barrel heating fluids, thermal transfer fluids such as Syltherm® coolant flows through heat exchangers, as well as flows through hydraulic circuits and sub-circuits with elevated temps.
Choice of three materials of construction: Select from aluminum, brass or stainless steel to meet system requirements.
Unrestricted mounting: Allows the designer to install the meter in any orientation – horizontal, vertical or inverted.
Good viscosity stability: A sharp-edged stainless steel orifice provides excellent measurement stability for viscosities ranging from 0-500 SSU.
Rugged & realiable: Designed as a hydraulic service tool, this meter will provide years of maintenance-free performance.
High pressure operation: The magnetically-coupled follower design allows operation to 6000 PSIG and use with opaque liquids.
24 different ports available: Standard selection of NPT, SAE and BSP ports reduces the amount of adapters required for installation.
Low cost accuracy: ± 2.5% of range accuracy in center third of scale; ±4% in upper and lower thirds.
Bi-directional & reverse flow option offered: High temperature meters are also available in bi-directional and reverse flow versions. Contact Lake Monitors for more information

Engineering specifications:

The high tempeature in-line flow meter shall:
• Use the variable annular orifice technique with compression spring recoil.
• Not require inlet or outlet straight plumbing, or require vertical pipe mounting.
• Have a measuring accuracy of ±2.5% of full scale in the center third of the measuring range, and ±4% in upper and lower thirds.
• Have a stainless steel sharp-edged orifice.
• Have a maximum temperature rating of: H-series 400°F (204°C) or J-series 600°F (315°C).
• Have a working pressure rating of 3500 PSIG.
• Be Lake Monitors No. H _ _ – _ _ _ – _ _ for 400°F (204°C) applications
or J _ _ – _ _ _ – _ _ for 600°F (315°C) application

Materials of Construction (Wetted Components)
	Aluminum	Brass	Stainless steel
High-pressure casing, end ports and tapered shaft	Aluminum	Brass	303 Stainless steel
H-Series (400°F)	Viton w/Teflon backup	Viton w/Teflon backup	Viton w/Teflon backup
J-Series (600°F)	Kalrez w/Teflon backup	Kalrez w/Teflon backup	Kalrez w/Teflon backup
Transfer Magnet	Teflon coated Alnico	Teflon coated Alnico	Teflon coated Alnico
Floating Orifice disk	Stainless Steel	Stainless Steel	Stainless Steel
All other internal parts	Stainless Steel	Stainless Steel	Stainless Steel

Materials of Construction (Non-Wetted Components)
	Aluminum	Brass	Stainless steel
Window Tube	Pyrex	Pyrex	Pyrex
Window Seals	Teflon	Teflon	Teflon

Performance
Measuring accuracy	±2.5% of full-scale in the center third of the measuring range; ±4% in upper and lower thirds
Repeatability	±1% of full-scale
Flow measuring range	0.5-150 GPM (0.2-560 LPM)
Maximum operating pressure	aluminum and brass monitors: 3500 PSIG (240 Bar) stainless steel monitors: 6000 PSIG (410 Bar)
Maximum operating temperature	H-Series 400°F (204°C) J-Series 600°F (315°C)
Standard calibration fluids	Oil meters: DTE 25® @ 110°F (43°C), 0.873 sg Water meters: tap water @ 70°F (21°C), 1.0 sg Air meters: air @ 70°F (21°C), 1.0 sg and 100 PSIG (6.8 Bar)
Filtration requirements	74 micron filter or 200 mesh screen minimum

Mechanical Size Code

DIM	Series 2	Series 3	Series 4	Series 5	Series 5
A	1-1/14" (32mm)	1-7/8" (48mm)	2-3/8" (60mm)	3-1/2" (90mm)	3-1/2" (90mm)
B	4-13/16" (122mm)	6-9/16" (167mm)	7-5/32" (182mm)	10-1/8" (258mm)	12-5/8" (322mm)
Port Size	NPTF: 1/8", 1/4"	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, #24 BSP: 1-1/4", 1-1/2"	NPTF: 2" SAE: #32 BSP: 2"