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King Instrument 7530 Series 50mm Rotameter with 316L Stainless Steel Internals

UsedKing InstrumentFlowmetersCanada

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MPN
75301112C15
Condition Description
IN GOOD CONDITION
Weight (lbs)
0.5
Country/region of manufacture
United States
Custom Label
T2
All 8 specifications
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Specifications 8

Brands
King Instrument
New/Used
Used
MPN
75301112C15
Condition Description
IN GOOD CONDITION
Dimensions
1"W x 2.5"D x 4"H
Weight (lbs)
0.5
Country/region of manufacture
United States
Custom Label
T2

Product description

Precision 50mm King 7530 rotameter with stainless steel parts, ±6% accuracy, ideal for gas flow measurement.

The King Instrument 7530 Series Rotameter is a precision variable area flowmeter engineered for accurate and repeatable fluid flow measurement in laboratory and bioprocessing environments. Key features include:

  • Construction: Machined from durable cast acrylic for clear visibility and reliability
  • Internal Components: 316L stainless steel ensuring chemical resistance and robustness
  • Sealing: EPR O-ring for effective sealing under pressure
  • Fittings: Standard brass fittings compatible with 1/4" female NPT connections (2C block size)
  • Accuracy: ±6% of full scale flow for the 50mm scale, suitable for controlled gas flow monitoring
  • Air Capacity: Handles air flow up to 180 SCFH at a maximum pressure of 100 psig
  • Applications: Widely used in biotechnology and molecular diagnostics laboratories for precise gas flow control, essential in bioprocessing units and synthetic biology setups

This rotameter is critical for researchers requiring reliable gas flow measurement in biomedical engineering, molecular diagnostics, and biopharmaceutical production pipelines. Its precision and durable construction make it popular among professionals performing live-cell imaging setups dependent on regulated gas environments and fluorescence analysis where stable airflow is mandatory.

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Frequently asked questions

How long does laboratory equipment typically last?

With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.

Can I get service for older equipment?

Often, yes. Verified suppliers frequently work with service partners converting the instrument. If applicable, we can list servicing options alongside the offer.

Where can I buy parts?

Ask a scientist through the request button. Parts are often available even when the instrument itself is discontinued.

What is the typical lead time for refurbished equipment?

Two to six weeks, depending on refurbishment scope and whether calibration is included.

Does laboratory equipment ship internationally?

We ship to 38 countries. Crating and customs handling are quoted with the instrument.

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Last updated 22 October 2026