Welcome to Porter Instrument, a global leader in analytical, dental, industrial and medical instrumentation. Since our inception in 1968, the division has specialized in the development, manufacture and sale of precision instruments for the measurement and control of gases and liquids. Our 54,000 square foot fully-integrated headquarters and manufacturing facility is located in Hatfield, PA, 35 miles northwest of Philadelphia.

Porter Instrument’s passion for precision is a legacy dating from our founder's invention of a tube-forming machine utilizing a heat/vacuum process, capable of precisely sizing the internal dimensions and configuration of glass tubing within 50 millionths of an inch. This invention led to the first production of interchangeable, glass rotameter tubes.

Today, in that same tradition of precision, Porter Instrument flow and pressure control instruments, both standard or modified to customer design requirements, excel in some of the world's most performance-critical applications. They play a vital role in the production of computer chips. They are trusted for the regulation and measurement of anesthetic gases in operating rooms worldwide. They aid in the production of pharmaceutical drugs, cutting-edge biotech research, dental patient sedation and environmental monitoring.

Porter Instrument supplies distinctively advanced products for three major components of progressive dental practices: Nitrous Oxide Sedation Systems, Emergency Oxygen Systems, and Office Communication Systems. Each is unique, and designed to meet the standards of Best Management Practices.

In short, when the application has no room for error, the world can put its trust in Porter Instrument.

Porter Instrument is a global leader in analytical, dental, industrial and medical instrumentation. We offer advanced technologies engineered to excel in a variety of performance-critical applications. For instrument reliability without rival, the world puts its trust in Porter Instrument.

Porter Instrument concentrates on the design and manufacture of precision instruments for the measurement and control of low flow gases and liquids. We are unique, in that in addition to our highly regarded line of the off-the-shelf flow and pressure control instrumentation, we specialize in providing custom solutions incorporating our standard products to meet the specific design requirements of original equipment manufacturers.  

Examples of our custom solutions include flow interlocks and mechanical emergency single-concentration gas mixers for medical instrumentation, mechanical and electronic pressure-based flow controllers for analytical instrumentation and liquid delivery systems for semiconductor precursors.

We encourage your inquiries.