Basic Variable Area Flow Meter is ideal for monitoring pump performance as well as measuring fluids in hydraulic circuits and cooling systems.
The LAKE Basic Inline Variable Area flow meter is ideal for monitoring pump performance and oil or water flows through hydraulic circuits and cooling systems. Often referred to as “rotameters,” Lake’s Basic meters are a low cost alternative to other flow meter types and are available in numerous materials of construction, including aluminum, brass and stainless steel to meet system and media requirements. The superior design not only makes this flow meter weather-proof for outdoor environments and wash-downs, but also reliable offering maintenance-free performance.
- Measuring Accuracy:±2.0% of full scale
- Flow Measuring Range:0.1-150 GPM (0.5-550 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) Note: for operation to 600°F (316°C), see our High Temperature Data sheet.
Choice of Three Materials of Construction: 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.
Superior Exterior Design: Weather-tight for use outdoors and/or on systems where wash downs are required.
Rugged and Reliable: Designed as a hydraulic service tool, this monitor will provide years of maintenance-free performance.
High Pressure Operation: The magnetically coupled follower design allows operation to 6000 PSIG and use with liquids.
Many Different Ports Available: Standard selection of NPT, SAE and BSPP ports reduces the amount of adapters required for installation.Pressure Differential GraphsPart Number GuideDownloads
±2.0% of full scale
±1% of full scale
Flow Measuring Range:
0.1-150 GPM (0.5-550 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) Note: for operation to 600°F (316°C), see our High Temperature Data sheet.
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
74 micron filter or 200 mesh screen minimum
Materials of Construction:
Window Tube: Polycarbonate
Window Seals: Buna-N, PTFE option
Casing & End Ports: Anodized Aluminum, Brass, or Stainless Steel
Seals: Buna-N, optional EPR, FKM, or FFKM
Transfer Magnet: PTFE coated Alnico
All other internal parts: Stainless steel