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Basic Inline

Ideal for accurately monitoring pump performance and media flows through hydraulic circuits and sub-circuits

Choice of three materials of constructions: Select from aluminum, brass or stainless steel to meet system and media compatibility requirements.
Unrestricted mounting: Allows the designer to install the meter in any orientation – horizontal, vertical or inverted.
Superior exterior design: Weather-tight for use outdoors and/or on systems where wash downs are required.
Good viscosity stability: A sharp-edged stainless steel orifice provides excellent measurement stability for viscosities from 0-500 SSU.
Rugged & reliable: Designed as a hydraulic service tool, this meter will provide years of maintenance-free performance.
High pressure operation: The magnetically coupled follower and rigid pressure vessel 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: Basic in-line liquid flow rate meters are also available in bi-directional and reverse flow versions


Engineering specifications:

The basic series liquid flow rate 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 weather-tight external construction.
• Be Lake Monitors No. B _ _ – _ _ _ – _ _

Materials of Construction (Wetted Components)
 
Aluminum
Brass
Stainless steel
High-pressure casing, end ports and tapered shaft
Aluminum
Brass
303 Stainless steel
Seals
Buna-N (STD), EPR, Viton or Kalrez
Buna-N (STD), EPR, Viton or Kalrez
Buna-N (STD), EPR, Viton or Kalrez
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
Polycarbonate (STD)
Polycarbonate (STD)
Polycarbonate (STD)
Window Seals
Buna-N (STD), Teflon
Buna-N (STD), Teflon
Buna-N (STD), 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 240°F (116°C) Note: for operation to 600°F (316°C)
Standard calibration fluids Tap water @ 70°F (21°C)
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" (175mm)
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"