『Kimray Flow Meter Sizing: Heavy-Duty High-Pressure Fluid Power Regulators and Oil Field Dump Valve Totalizers』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)
Kimray Flow Meter Sizing for Heavy Duty High Pressure Fluid Power Regulators and Oil Field Dump Valve Totalizers
Quick Answer: For Kimray heavy duty high pressure fluid power regulators and oil field dump valve totalizers, correct sizing depends on start stop flow, fluid viscosity, pressure drop, and pipe diameter. Positive displacement oval gear meters and Coriolis mass flow meters handle intermittent dump flow better than turbine or differential pressure devices. Send Silver Instruments your pressure in bar, temperature in °C, pipe size in DN, and flow range in kg/h for a direct sizing check.
Why Dump Valve Flow Is Hard to Measure
An oil field dump valve does not produce a steady flow. It opens on liquid level and closes after a short batch. The meter sees a burst of flow and then zero flow. This pattern creates strong measurement errors on velocity based meters like turbine or vortex. Because the flow starts and stops, the meter needs fast response and a low cut off. Most engineers skip this part and buy a meter based on the average daily volume. We have seen this on customer sites many times, from a heater treater in Texas to a separator in Indonesia.
Another factor is gas entrainment. Dump valves often pass produced water with small gas bubbles. If the meter depends on a straight pipe profile, the bubbly flow can produce noisy output. Positive displacement meters such as oval gear meters pass the actual liquid volume and ignore the gas pocket within limits. Coriolis meters also work well because they read mass flow and density directly.
Sizing Data for High Pressure Regulator Service
Silver Instruments sizes a flow meter after the regulator or before the dump valve totalizer using these inputs. Minimum and maximum flow in kg/h or m3/h. Pressure in bar at the meter inlet and outlet. Fluid temperature in °C. Pipe size in DN. Viscosity in cP for oil or condensate. Conductivity in µS/cm if an electromagnetic meter is considered. Gas composition or liquid type for density and material compatibility. In practice, the line size is not the meter size. A DN40 pipe can need a smaller meter bore if the flow is intermittent or a larger bore if gas carried liquid appears.
Do not assume a 2 inch line means a DN50 meter. The meter bore can be smaller than the pipe if the flow is intermittent. The pressure drop across the meter also changes when the Kimray regulator opens wide. Size the meter at maximum dump flow and then check the low flow cut off at minimum dump flow. That low flow cut off is where many totalizers lose count.
Meter Options for Regulator and Dump Valve Totalizers
For clean oil or produced water with viscosity from 1 to 1000 cP, we recommend an oval gear flow meter. It gives a pulse output that oil field totalizers can count. It does not need straight run and it handles start stop flow. For high accuracy mass flow on light condensate or high pressure gas, a Coriolis mass flow meter is a stronger choice. Coriolis covers gas and liquid, gives 4-20 mA HART output, and can also read density. This helps when the line pressure changes after a Kimray regulator.
For produced water with conductivity above 5 µS/cm, an electromagnetic flow meter works. But if oil is mixed with water, electromagnetic reading becomes less reliable. In that case use an oval gear meter or Coriolis. For gas vent lines on high pressure regulators, a thermal mass flow meter works for low flow and a vortex flow meter works fo
Installation Notes for Oil Field Totalizers
Place the meter after the dump valve outlet and before the storage tank or downstream manifold. Keep a short straight section if the meter type requires it. Oval gear meters do not require long straight runs. Coriolis meters also do not. If you install an electromagnetic or vortex meter, follow the manufacturer required upstream and downstream lengths. For oil field dump valve totalizers, mount the pulse output or 4-20 mA HART signal to a flow computer or paperless recorder. Silver Instruments supplies paperless recorders that log total flow, batch count, pressure, and temperature in one display.
For hazardous areas in the Middle East and Southeast Asia, request ATEX Zone 1 certification and stainless steel bodies. We also check wetted parts against hydrogen sulfide and produced water because material selection changes from site to site.
A Real Sizing Example From Southeast Asia
Last year a customer in Vietnam asked about a Kimray dump valve on a produced water line. The pipe was DN40, pressure 8 bar, water conductivity 2,800 µS/cm, flow range 0.5 to 8 m3/h. We selected an oval gear flow meter with a pulse output and 316 stainless body. The totalizer counted each dump event correctly after reducing the low flow cut off. If the customer had used a turbine meter, the low flow cutoff would have missed the short dumps. This is the type of detail that changes the totalizer count by 5 to 15 percent.
Contact and Quote Request
Silver Instruments helps oil and gas end users and distributors in Southeast Asia, Australia, Latin America, Africa, and the Middle East. To get a flow meter size for a Kimray high pressure regulator or dump valve totalizer, send your pressure in bar, temperature in °C, pipe size in DN, flow range in kg/h, and fluid type.
Tel: +86-25-68650347
WhatsApp: +86-25-52155837
WeChat: +86 15365082610
You can also visit flow-meter.com.au for product data on oval gear, Coriolis, electromagnetic, vortex, and thermal mass flow meters.
FAQ
What is the best flow meter for a Kimray oil field dump valve totalizer?
Oval gear or Coriolis meters work best because they handle start stop flow and capture short liquid batches without long straight pipe runs.
Can a vortex flow meter measure flow after a high pressure regulator?
Only if flow is continuous and gas velocity stays above the lower limit. Intermittent dump flow often drops below the vortex cutoff and causes lost pulses.
What data does Silver Instruments need for Kimray flow meter sizing?
Minimum and maximum flow, pressure in bar, temperature in °C, pipe size in DN, fluid type, viscosity in cP, and conductivity in µS/cm if water is involved.
Do these meters support hazardous area installation?
Yes, many models have ATEX Zone 1 or Ex d options. Specify the classification and gas group when you send the quote request.
Can the meter connect to an existing oil field totalizer?
Yes, pulse output or 4-20 mA HART can connect to most totalizers and flow computers. Silver Instruments confirms the input type before shipping.
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