High Temperature Flow Meters, Thermal Flow Meters, Lake MonitorsFor 1/8"- 2" Pipe SizesCE

Style H & J

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 AND RELIABLE
    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 AND REVERSE FLOW OPTION OFFERED
    High temperature meters are also available in bi-directional and reverse flow versions. Contact Lake Monitors for more information.

Note: Sytherm is a registered trademark of DOW Chemical Company


Engineering Specification

THE HIGH TEMPERATURE 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) applications.

Materials of Construction (Wetted Components)

Aluminum

Brass

Stainless Steel

High-pressure casing, end ports and tapered shaft

Aluminum

Brass

#303 Stainless Steel

Seals

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

Teflon is a registered trademark of DuPont de Nemours & Co.
Viton and Kalrez are registered trademarks of Dow DuPont Elastomers


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:

.05-150 GPM (0.2-560 LPM)

Pressure differential:

See Brochure

Maximum operating pressure1:

aluminum and brass meters: 3500 PSIG (240 Bar)
stainless steel meters: 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

1Note: See Temperature/Pressure De-rating Chart Below

DTE 25 is a registered trademark of Exxon Mobil


temperature derating


Mechanical Size Code
basic in-line CAD

DIM

Series 2

Series 3

Series 4

Series 5

Series 5

A

1-1/4"
(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"

Note: Consult factory for SAE brass meter requirements.

Download Brochure