These petroleum fluid flow meters are designed for use as visual flow rate indicators in hydraulic systems that operate with compatible petroleum-based fluids. They help technicians monitor system flow, check hydraulic performance, and diagnose flow-related issues during maintenance, troubleshooting, or equipment setup.
Available flow ranges include 1 to 15 GPM, 3 to 30 GPM, and 10 to 150 GPM, making these hydraulic flow meters suitable for a range of low-flow and higher-flow hydraulic applications. Each model can be installed temporarily for testing or permanently as part of the system, with mounting flexibility that allows installation in any position.
Features
Reliable Flow Monitoring for Hydraulic Systems
Visual hydraulic flow meter design for quick flow rate reference
Flow range options up to 150 GPM
Maximum operating pressure up to 3500 PSI
Accuracy rated at ±2% full scale
Repeatability rated at ±1%
Outer housing rotates 360° for easier dial reading after installation
Can be installed temporarily or permanently
Supports installation in any position
Available with NPT port options, including 1/2-14 NPT, 3/4-14 NPT, and 1-1/4-11-1/2 NPT
Operating temperature range of -20°F to 240°F
Built for use as a hydraulic flow gauge in petroleum fluid systems
Materials
These hydraulic flow meters are built with durable materials selected for petroleum fluid applications and demanding hydraulic environments. The body is made from anodized aluminum, providing a lightweight yet dependable housing for flow monitoring. Internal components include an anodized aluminum piston and cone, along with a stainless steel spider plate, spring, and fasteners for strength and long-term performance.
The meters also feature Viton® pressure seals and a polycarbonate guard, helping support reliable operation within the listed pressure and temperature ranges. This construction makes the product a practical option for hydraulic flow measurement, system diagnostics, and visual flow monitoring in compatible petroleum-based hydraulic systems.
Temperature Range
-20°F to 240°F.
Products
Model Number
Size
Ports
Flow Range
Materials
Maximum Operating Pressure
Peak Pressure Drop
B
C
D
Price
Action
601-015Petroleum Fluid Flow Meter
1/2
1/2-14 NPT
1 to 15
Aluminum
3500
18.5
6.6
2.07
2.4
701-030Petroleum Fluid Flow Meter
3/4
3/4-14 NPT
3 to 30
Aluminum
3500
16.5
7.2
2.48
2.85
801-150Petroleum Fluid Flow Meter
1-1/4
1-1/4-11-1/2 NPT
10 to 150
Aluminum
3500
27.5
12.2
4.12
4.72
Product Questions & Answers (1)
Question by: Daryl R on Jul 14, 2025, 6:21 AM
What kind of hydraulic systems are these flow meters typically used in?
Answer by: Customer Support on Jul 15, 2025, 2:22 PM
These flow meters are designed as a visual indicator of flow rate. They're often used in hydraulic systems, and you can install them either temporarily or permanently.