Variable Area Flow Meters, Phosphate Flow Meters, Lake MonitorsFor 1/8"- 2" Pipe Sizes

Style Pce

Compatible with aviation lubricants such as Skydrol®, as well as fire-retardant fluids such as Pydraul®, Fyrquel® and Houghton 900® series.

  • 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.

  • MULTI-USE
    Factory calibrated for phosphate esters, these versatile meters can be used to verify hydraulic power unit outputs, as well as test machinery and tools for proper fluid flow rates.

  • RUGGED AND RELIABLE
    These meters are constructed with all metal pressure vessels that allow safe, permanent installation in industrial systems.

  • HIGH PRESSURE OPERATION
    The magnetically coupled follower design allows operation to 6000 PSIG.

  • 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
    Phosphate ester flow meters are also available in bi-directional and reverse flow versions. Contact Lake Monitors for more information.

Skydrol is a registered trademark of Solutia, Inc.
Pydraul is a registered trademark of Monsanto Co.
Fyrquel is a registered trademark of AKZO Chemicals.
Houghton 900 is a registered trademark of Houghton International.


Engineering Specification

THE PHOSPHATE ESTER IN-LINE FLOW RATE METER SHALL:

  • Include a direct-reading scale corrected for phosphate ester media.

  • 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.

  • Be Lake Monitors No. P _ _ – _ _ _ – _ _

Materials of Construction (Wetted Components)

Aluminum

Brass

Stainless Steel

High-pressure casing, end ports and tapered shaft

Aluminum

Brass

#303 Stainless Steel

Seals

EPR w/Teflon® backup (STD.)
Virton® or Kalrez®

EPR w/Teflon® backup (STD.)
Virton® or Kalrez®

EPR w/Teflon® backup (STD.)
Virton® 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

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 range1:

0.05-140 GPM (0.2- 530 LPM)

Pressure differential:

See Brochure

Maximum operating pressure:

aluminum and brass meters: 3500 PSIG (240 Bar)
stainless steel meters: 6000 PSIG (410 Bar)

Maximum operating temperature:

240°F (116°C)
Note: For operation to 600°F (316°C) alternate o-ring material will be required.

Standard calibration fluids:

DTE 25® @ 110°F (43°C), 0.873 sg
meters are density corrected to 1.15 sg

Filtration requirements:

74 micron filter or 200 mesh screen minimum

1To determine approximate measuring ranges multiply the range listed in the Liquid Flow Rate section of Lake’s Guide to standard meter numbers by 0.93. For example, a P3A6WB10 would have a scale range to 10 GPM *0.93 = 9.3 GPM at full scale.

DTE 25 is a registered trademark of Exxon Mobil


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