WALLACE & TIERNAN CENTRAL CONTROLS NPXB-140 FLOW METER, 0-8GPH H2O, 3871-FIC-251

Description:

The Wallace & Tiernan Central Controls NPXB-140 Flow Meter (Tag: 3871-FIC-251) is an industrial flow measurement device designed for monitoring low-flow liquid applications in water treatment, chemical dosing, chlorination, and process control systems. Commonly installed in municipal water facilities, wastewater treatment plants, chemical feed skids, and industrial process control assemblies. Maintenance technicians, plant operators, and process engineers use this flow meter for accurate flow indication, system monitoring, and maintaining reliable dosing and treatment performance in demanding industrial environments.

Applications:

The Wallace & Tiernan NPXB-140 flow meter is designed for low-flow process monitoring applications requiring accurate measurement, dependable operation, and long-term reliability. It is frequently utilized in potable water treatment systems, wastewater processing facilities, chlorine feed systems, chemical injection equipment, industrial process water applications, and automation control environments where precise flow regulation, process efficiency, and regulatory compliance are critical. The low-capacity design makes it particularly suitable for metering chemical additives and treatment solutions.

Technical Specifications:

• Brand: Wallace & Tiernan Central Controls
• Part Number: NPXB-140
• Tag Number: 3871-FIC-251
• Product Type: Industrial Flow Meter
• Flow Range: 0–8 GPH (Gallons Per Hour)
• Measured Media: H2O (Water)
• Function: Flow measurement and monitoring
• Application Type: Chemical dosing and water treatment systems
• Measurement Style: Variable area flow indication
• Designed For: Low-flow liquid monitoring applications
• Compatible Equipment: Water treatment systems, chemical feed skids, and process control assemblies
• Operating Medium: Water and compatible process liquids
• Installation Type: Inline process mounting
• Construction Type: Industrial flow measurement assembly
• Industrial Use: Water treatment and process monitoring
• Performance Feature: Accurate low-flow measurement and process visibility
• Usage Purpose: Process verification, dosing control, and system monitoring
• Operating Environment: Municipal, industrial, and utility process systems

Common Replacements:

• Brooks Variable Area Flow Meter
• King Instrument Rotameter Flow Meter
• Dwyer Rate-Master Flow Meter