• Choice of Materials: Select from aluminum, brass or stainless steel to meet system and liquid requirements.
  • Unrestricted Mounting: Allows for horizontal, vertical or inverted installation and does not require straight plumbing on inlet or outlet.
  • 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.
  • High Pressure Operation: The magnetically coupled follower design allows operation to 6000 PSIG and use with liquids.
  • Multiple Ports Available: Standard selection of NPT, SAE and BSPP ports reduces the amount of adapters required for installation.
Technical Specifications
Measuring Accuracy:

±2.0% of full scale


±1% of full scale

Flow Measuring Range:

0.1-130 GPM (0.5-500 LPM)

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)

Standard Calibration Fluids

Tap water @ 70°F (21°C) 1.0 s.g.
Meters are density corrected to 1.145 sg

Filtration Requirements:

74 micron filter or 200 mesh screen minimum

Materials of Construction (Non-wetted components):

Window Tube: Pyrex®

Window Seals: PTFE


Casing & End Ports: Anodized Aluminum, Brass, or Stainless Steel

Seals: EPR, w/ PTFE backup, FKM or FFKM optional

Transfer Magnet: PTFE coated Alnico

All other internal parts: Stainless steel

Pressure Differential Graphs

Part Number Guide

Phosphate Flow Meter Part Number Guide