Product Catalog



INTERTEC is a supplier of unique systems designed to provide reliable protection of sensitive field-mounted instruments. 


Measurement Instruments

Welker, Inc. designs and manufactures equipment for the oil and natural gas industry. It provides control valves, gas samplers, light liquid hydrocarbon samplers, crude oil samplers, sample cylinders, refined product samplers, filters and filter dryers, and instrumentation, as well as regulators, relief valves, and other components for instrumentation. The company also offers custom odorization systems for injecting odorant into natural gas pipelines; and lease automatic custody transfer (LACT) units, prover systems, tankers, samplers and strainers, liquid skids, and gas skids. It markets its products through a network of representatives in the United States and internationally. Welker, Inc. was founded in 1958 and is based in Sugar Land, Texas.


Flow/Dust/Opacity Measurement Instruments

SICK Process Automation

SICK Process Automation offers in-situ and extractive instrumentation for dust, opacity and volume flow.
We have over 50 years of combined technical experience serving the industries of power, cement, refining, petrochemical, chemical, pharmaceutical, waste incineration, water treatment, pulp and paper, steel, food and beverage, glass and other areas.
Our focus on customer satisfaction is achieved by providing advanced products and offering training, technical support, field service and after sales support.


Industrial Sensors/Explosion Protection

In 1945, Walter Pepperl and Ludwig Fuchs founded a small radio workshop in Mannheim, Germany, based on the principles of inventiveness, entrepreneurial foresight, and self-reliance. The experience they acquired was transformed into new ideas, and they continued to enjoy developing products for customers. The eventual result was the invention of the proximity switch. This innovation represented the starting point of the company's success story.

Today, Pepperl+Fuchs is known by customers around the world as a pioneer and an innovator in electrical explosion protection and sensor technology. Our main focus is always on your individual requirements: With a passion for automation and groundbreaking technology, we are committed to working in partnership with you now and in the future. We understand the demands of your markets, developing specific solutions, and integrating them into your processes.