Level Gages & Valves
Flow Indicators | Sight Windows
Northeast Controls Inc. provides precision industrial instrumentation for process visibility and control. Trusted by engineers and plant operators across North America.
Our Product Lines
Level Gages
Liquid Level Gages & Valves
Transparent Gage w/ Valves. For direct visual indication of process level, a broad range of flat-glass transparent or reflex gages are available to meet most temperature and pressure conditions. Tubular styles are also available, along with a complete line of offset pattern valves.
Product details
Sight Flow Indicators
Bulls-Eye & Full View Models
We offer bulls-eye style as well as full (360 degree) viewing models. Choose from threaded (FNPT) to ANSI flange connections. Sight flow indicators provide an effective way to view the condition of liquids and/or solids flowing through pipelines at most any flow, pressure, or temperature.
Product details
Sight Windows
Sight Glasses & Sight Ports
We offer a complete line of sight glasses (also called sight ports or sight windows) for all vessel, piping, and tank wall applications. Available in circular, oval, rectangular, DIN and sanitary tri-clamp styles. Engineered for pressure, pressure-less and ASME code applications.
Product detailsWhy Northeast Controls?
For over 85 years, engineers and plant operators have trusted NCI for precision industrial instrumentation. Here is what sets us apart.
In Business Since 1937
Over 85 years of specialized experience in process visibility instrumentation. We know these products inside and out.
UL & Industry Certifications
Products meeting UL, ATEX, and Class I hazardous location requirements for the most demanding process environments.
Worldwide Distribution
Serving customers across North America and internationally — from refineries to food processing plants.
Full Product Range
Level gages, sight flow indicators, sight windows, process lighting, and valves — everything you need from one source.
Industries Served
Oil & gas, chemical, pharmaceutical, food & beverage, power generation, and petrochemical processing.
Fast Quote Response
Submit a quote request and receive a response within one business day. We make it easy to get what you need quickly.
Contact Us
Northeast Controls Inc. — PO Box 9, Nassau, DE 19969 USA
Tel: 1+201.419.6111 | [email protected]