Flow Meter Solutions
Differential Pressure Flow Meter
Proven Flow Technology with Cost-Effective Measurement
Differential Pressure (DP) Flow Meters are a traditional yet reliable method for measuring flow based on the pressure drop across a restriction. They are widely used for both liquids and gases in industrial pipelines.
DP flow meters are valued for their simplicity, low cost, and adaptability across industries such as HVAC, chemical processing, steam measurement, and general industrial applications. With modern transmitters, they offer enhanced diagnostics and accuracy.
Technical Specifications
Flow Range
Varies based on orifice size and pressure drop
Pipe Sizes
DN15–DN1000
Accuracy
±0.5% to ±2.0% of reading
Fluid Temp
-40°C to 400°C
Power Supply
Loop-powered / 24VDC
Protection
IP65 / IP67 (Transmitter)
Key Features
Applications
Installation Process
Ensure proper and safe installation of your differential pressure flow meter by following these best practices.
Step 1: Select Mounting Location
Choose a straight run of pipe, ideally 10D upstream and 5D downstream of the primary element for optimal accuracy.
Step 2: Install Primary Element
Position orifice plate, venturi, or flow nozzle in line with flow direction arrows. Ensure zero leaks at flanges or seals.
Step 3: Mount Transmitter
Securely mount the differential pressure transmitter close to the tapping points and slightly below them to avoid vapor lock.
Step 4: Connect Impulse Lines
Use equal-length impulse tubing for high and low pressure sides. Bleed all air or gas before calibration.
Step 5: Electrical Setup
Connect power and signal lines per the manufacturer’s diagram. Ground the transmitter to reduce electrical noise.
Step 6: Zero & Span Calibration
Perform initial zeroing and span checks using a reference standard or simulation to ensure accurate flow output.
Frequently Asked Questions
Certifications
Trusted for quality and compliance. Our flow meters adhere to international standards for performance, safety, and environmental impact.
ISO 9001
Certified Quality Management
IP65 / IP68
Ingress Protection Rating
RoHS
Restriction of Hazardous Substances
CE Mark
European Safety Compliance