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Basic In-Line Liquid Flow Rate Meters

In-Line Liquid Flow Rate MetersCE LogoFor 1/8"- 2" Pipe Sizes

Style B

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

CHOICE OF THREE MATERIALS OF CONSTRUCTION
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 AND 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 AND REVERSE FLOW OPTION OFFERED
Basic in-line liquid flow rate meters are also available in bi-directional and reverse flow versions. Click here for more information.


Engineering Specification

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, FKM or FFKM;

Buna-N® (STD.), EPR, FKM or FFKM

FKM with PTFE backup (STD.), Buna-N®, EPR or FFKM

Transfer Magnet

PTFE coated Alnico

PTFE coated Alnico

PTFE coated Alnico

Floating Orifice Disk

Stainless Steel

Stainless Steel

Stainless Steel

All other internal parts

Stainless Steel

Stainless Steel

Stainless Steel

Buna-N is a registered trademark of Chemische Werke Huls


Materials of Construction (Non-Wetted Components)

Aluminum

Brass

Stainless Steel

Window Tube

Polycarbonate (STD.)

Polycarbonate (STD.)

Polycarbonate (STD.)

Window Seals

Buna-N® (STD.), PTFE

Buna-N® (STD.), PTFE

Buna-N® (STD.), PTFE


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:

.05-150 GPM (0.2-560 LPM)

Pressure differential:

Click here for specific pressure differential graphs

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), click here

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

Filtration requirements:

74 micron filter or 200 mesh screen minimum

DTE 25 is a registered trademark of Exxon Mobil


Mechanical Size Code
basic in-line CAD

DIM

Series 3

Series 4

Series 5

Series 5

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)

Port Size

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"

Note: Consult factory for SAE brass meter requirements.




©2011 Lake Monitors

8809 Industrial Drive, Franksville, WI  53126
Phone: 262-884-9800 | Toll Free: 800-850-6110
Fax: 262-884-9810

info@lakemonitors.com