Polysulfone Acrylic & PVC MetersNEW 7440 Series

Customers have asked for a rugged, low flow, glass tube flowmeter with vertical connections. The 7440 Series was designed with these qualities in mind for cost-effective purging and dosing applications. Based on a proven design, the 7440 Series offers simple, adaptable installation and low maintenance costs. Read more

King Rotameters Provide Flow Measurement Assurance

The difference between King Instrument Company and the competition is night and day. While other flow measurement manufacturers are focused on new technology, spending their time and money searching for more esoteric, unique, and therefore more expensive fluid and gas metering solutions, King's business concept is straightforward and simple.

King's primary focus is on using proven technology and longstanding methods to build the most accurate, versatile, and economical rotameters possible.
Read More

NSF LogoISO 9001:2008 Certified

King Instrument Company has been certified by NSF – ISR to be in conformance to the internationally accepted ISO 9001:2008 Quality Management System standard.

Achievement and maintenance of this certification speaks of our on-going commitment to Customers to the delivery of quality products - on-time and hassle-free.

We expect our focus on continuous improvement of products, services, and our relationships to translate to long-lasting benefits for our Customers, Suppliers, and Employees. View our Certificate

How to Select the Correct Rotameter

Has this ever happened to you:  Your flowmeter delivery finally arrives and the expensive instruments have absolutely nothing to do with solving your particular flow measurement challenges?  Or that other company’s rotameters don’t measure up to the promised quality?  And your job is on hold until you find the correct way of sizing variable area flowmeters suitable for liquid or gas applications?

Well, if you do need accurate, repeatable, low-cost rotameters—delivered on time to keep you operating under budget—we are here to help. King Instrument Company has made selecting the correct rotameter for your application a cinch.  Really.  
Read More

We Believe In Responsible Engineering And Manufacturing

We support engineering and manufacturing practices based on socially - responsible supply chains, locally and globally. Our tungsten and tantalum components are manufactured from Conflict-Free mineral sources. Contact Supplier Quality Management roland@kicflow.com


The King Instrument Company Mission: To produce the finest group of rotameters ever sold”The Company Mission
“To produce the finest group of rotameters ever sold”

We are committed to:
Clearly understanding and fulfilling our Customers’ needs and expectations of timely delivery, product performance and value.
Fostering productive, long-term relationships with Suppliers by aligning their goals with the needs of our Customers.
Methodically improving our production systems to create true quality and productivity enhancements that directly benefit our Customers.
A culture that values continuous improvement in our products, services, and personal relationships.

Ph: (714) 891-0008 • sales@kinginstrumentco.com • 12700 Pala Drive Garden Grove, CA 92841    |   Quality Made In The U.S.A.