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Industrial Visual Acrylic Tube Flow Meters: Specifications Comparable to King Instruments
Quick Answer: Silver Automation Instruments stocks industrial visual acrylic tube flow meters that share the same dimensional and performance envelope as King Instruments rotameters. Connection sizes from DN15 to DN50, local indication standard, and optional 4-20 mA HART output make these a direct technical fit. Send us your pipe diameter, flow medium, and operating pressure to get a same-day price and shipping estimate.
Why Engineers Choose Visual Acrylic Tube Flow Meters
Acrylic tube flow meters give field operators an instant visual read without any power supply. The transparent metering tube shows a float position against a scale printed directly on the body. In chemical dosing and water treatment lines, this simple local indication cuts troubleshooting time. Engineers prefer this design when the process fluid is clean, pressure is moderate, and the installation point does not require remote data logging.
Silver Instruments offers units with polysulfone or PTFE end fittings and stainless steel wetted parts. The standard O-ring material is Viton, and EPDM is available for higher temperatures. We see these meters often specified in Southeast Asian palm oil processing, Middle Eastern desalination chemical injection, and Australian food-grade CIP return lines. The cost stays low because the acrylic body replaces expensive metal or glass tubes, yet it still handles many industrial fluids safely. One customer in Vietnam replaced a failing glass tube meter on a citric acid dosing skid with our SAV-25 model and reduced downtime by two shifts per month.
King Instruments Comparable Specifications
Our visual acrylic tube flow meter dimensions and performance data align with the King 7400 and 7100 series often sourced by OEMs and panel builders. The standard accuracy is plus or minus 2 percent of full scale, with a turndown ratio of 10 to 1. End connections are female NPT or BSPP threads, and we can supply tri-clamp adapters for food and pharma skids. Standard back pressure rating is 10 bar at 60 degrees Celsius. With optional reinforced tubing and EPDM seals, the meter handles up to 15 bar at 80 degrees Celsius. A built-in needle valve is available on all sizes for manual flow control.
For remote monitoring, we integrate a magneto-inductive transmitter that outputs a 4-20 mA HART signal. Limit switches for high and low flow alarms are also pre-wired on request. Every meter comes with a factory calibration report traceable to national standards. If your existing King Instruments model is obsolete or has a long lead time, our stocked meters drop into the same piping layout without re-drilling panels or changing tube routing.
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Water flow ranges cover small pilot flows up to main header monitoring. Model SAV-15 handles 0.5 to 5 liters per minute on DN15 pipe. SAV-25 measures 5 to 50 liters per minute on DN25. SAV-40 goes from 20 to 200 liters per minute on DN40, and SAV-50 handles 50 to 500 liters per minute on DN50. For gases like compressed air or nitrogen, we rate the ranges in normal cubic meters per hour at standard conditions. Just tell us the fluid phase, density, and pressure, and we will pick the correct float material for you, typically stainless steel, PTFE, or Hastelloy for corrosive streams.
How to Request a Quote from Silver Automation Instruments
We ship from our Nanjing warehouse to over 40 countries with complete export documents. For a price and delivery time to your site, send the following data to [email protected]: pipe diameter in DN or inches, fluid name and state, minimum and maximum flow rate, working pressure in bar, temperature in degrees Celsius, and any output signal you need. You can also call Tel: +86-25-68650347, message us on WhatsApp at +86-25-52155837, or reach our engineers on WeChat: +86 15365082610. For urgent replacements, we can ship small orders within 48 hours using DHL or FedEx to Australia, Singapore, Dubai, Lagos, or Santiago de Chile.
Frequently Asked Questions
Can these meters directly replace a King Instruments 7400 series unit?
Yes. The flange-to-flange dimensions and connection sizes match the common 7400 and 7100 configurations. We also provide the same scale length options so operators see familiar readings.
What is the standard pressure and temperature limit?
Standard acrylic tube meters are rated for 10 bar at 60 degrees Celsius. With optional materials we raise the limit to 15 bar and 80 degrees Celsius for short periods.
Do you supply only local indication or also electronic output?
We supply both. The base model has a printed scale for local readout. Add-on modules give you 4-20 mA HART output with two configurable alarm contacts.
Which industries rely on these acrylic tube flow meters the most?
We see strong demand in water and wastewater chemical dosing, food and beverage CIP circuits, industrial gas purging panels, and demineralized water systems in power plants. Shipments go regularly to Singapore, Saudi Arabia, Brazil, Nigeria, and Indonesia.
What information do you need to send a quote?
Tell us your pipe diameter (DN), the fluid you are measuring, the flow range, maximum pressure and temperature, and whether you need signal outputs or switches. We reply with a priced data sheet and lead time within one working day.
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