『Hedland Ez View Flow Meter Manual: Direct In-Line Oil and Water Rate Indicators Sizing Guide』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)
Hedland Ez View Flow Meter Manual and Direct In-Line Oil and Water Rate Indicator Sizing Guide
Quick Answer
Quick Answer: If you need a direct in-line oil or water rate indicator and you are studying the Hedland Ez View flow meter manual for sizing, you need five data points. Pipe size in DN, flow range in L/min or GPM, fluid type, pressure in bar, and temperature in degrees C. Silver Instruments supplies compatible oil and water rate indicators with local dial and 4-20 mA output. Send us your pipe size and flow range for a quote.
What the Hedland Ez View Manual Covers
The Hedland Ez View manual covers direct in-line oil and water rate indicators. These meters use a spring loaded piston or sharp edge orifice. The manual lists flow ranges from 0.2 L/min to 300 L/min for pipe sizes DN15 to DN50. The body material options include brass and polysulfone. The sight window allows local reading without power.
In practice many engineers skip the viscosity section. The Hedland Ez View manual states that oil viscosity must stay within 10 cSt to 110 cSt for standard units. For water the range is 1 cSt to 5 cSt. We have seen this on customer sites many times. A water meter installed on a glycol line reads wrong because the viscosity is 20 cSt.
Sizing Guide for Direct In-Line Oil and Water Rate Indicators
Sizing a direct in-line rate indicator is not the same as sizing an electromagnetic or Coriolis meter. First confirm the actual pipe size. Second define normal and maximum flow. Third check pressure drop at maximum flow. The Hedland Ez View manual includes pressure drop curves for oil and water.
For oil, pressure drop rises with viscosity. A DN25 meter passing 40 L/min of 46 cSt oil can drop 2.5 bar. For water the same meter drops 0.6 bar at 40 L/min. This matters on pump discharge lines with limited head.
Here is a specific example. A paint manufacturer in Southeast Asia needed a flow indicator for solvent at 15 L/min in a DN20 line. The solvent viscosity was 2 cSt. We supplied a 316L stainless steel direct in-line rate indicator with PTFE seals. The total installed cost stayed below 600 USD.
Hedland Ez View vs Silver Instruments Direct In-Line Indicators
Hedland Ez View meters are mechanical devices with local indication only. You can add a transmitter but that increases cost and complexity. Silver Instruments offers direct in-line oil and water rate indicators with built in 4-20 mA HART output. We also supply ATEX Zone 1 certified versions for oil and gas sites in Nigeria and the Middle East.
Material choice is another difference. The standard Hedland Ez View body is brass or polysulfone. Our standard is 316L stainless steel for seawater and aggressive chemicals. For desalination plants in Saudi Arabia and Oman we always recommend 316L or duplex stainless steel. Brass is fine for clean lube oil.
For a DN25 oil line with 10 to 60 L/min flow, we re
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Price is usually the first question. A Silver Instruments direct in-line rate indicator with local dial and 4-20 mA output costs 15 to 30 percent less than the equivalent Hedland unit in Vietnam, Indonesia, and Australia. We ship by DHL or sea freight from our warehouse in Nanjing, China.
Common Sizing Mistakes in the Field
The biggest mistake is buying a meter based on pipe diameter alone. A DN40 pipe with only 5 L/min actual flow will not move the piston. The meter will read near zero. Always check the minimum flow for the meter size.
Another mistake is ignoring solid particles. Oil with metal debris will jam a spring loaded piston meter. The Hedland Ez View manual suggests a 100 mesh strainer upstream for oil lines. We recommend the same. A Y strainer costs less than 20 USD and saves the meter.
Temperature is a third factor. Because the sight window material sets the temperature limit, check this before you buy. The polysulfone sight window on Hedland Ez View is rated for 90 degrees C maximum. Our glass window stainless steel models work up to 150 degrees C. Ask about the sight window material when you request a quote.
FAQ
Q: What is the Hedland Ez View flow meter used for?
A: It is a direct in-line rate indicator for oil and water. It gives local flow rate without electricity. Common applications are lube oil skids, cooling water return lines, and fuel oil monitoring.
Q: How do I size a direct in-line oil flow meter?
A: Match the meter size to the actual flow range, not just the pipe size. Provide fluid viscosity in cSt, normal flow, and maximum flow. Check pressure drop at maximum flow.
Q: Can I use the Hedland Ez View meter for seawater?
A: The standard polysulfone and brass body is not ideal for seawater. Use a 316L stainless steel body with a glass window. Silver Instruments supplies 316L models for desalination plants.
Q: What is the price of a direct in-line oil and water rate indicator?
A: Prices depend on body material, size, and output. A DN20 brass unit with local dial starts around 180 USD. A 316L model with 4-20 mA HART output starts around 350 USD.
Q: Does Silver Instruments offer a compatible replacement for Hedland Ez View?
A: Yes. We supply direct in-line oil and water rate indicators that fit the same pipe sizes and flow ranges. We also add 4-20 mA output, pulse output, and ATEX certification as options.
Request a Quote
For a direct quote send us your pipe size in DN, flow range in L/min or GPM, fluid type, pressure in bar, and temperature in degrees C. Contact Silver Automation Instruments at Tel: +86-25-68650347, WhatsApp: +86-25-52155837, WeChat: +86 15365082610. We answer technical questions within 12 hours.
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