Founded in 1928, DeZURIK manufactures a wide variety of quality process valves, including butterfly valves, their original eccentric plug valves, v-port ball valves, rotary control valves, and knife gate valves. In 2011, DeZURIK aquired APCO and Willamette, industry leaders in water and wastewater valving. In 2012, DeZURIK acquired Hilton Valve Inc, an industry leader in fabricated large diameter and custom knife gate valves. Together, the DeZURIK family provides nearly 200 years of combined expertise, and the broadest knife gate and engineered valve companies in the industry.

DeZURIK/APCO/Hilton and Willamette is pleased to announce the appointment of Lesman Instrument Company as its exclusive industrial representative, effective July 1, 2017. Lesman's DeZURIK territory includes the entire state of Illinois, Eastern Missouri, select counties in Northwest Indiana, and select western counties in Kentucky. DeZURIK customers outside the Lesman territory can find their local representative at

Air Valves
APCO Air Release Valves
APCO Air/Vacuum Valves Hilton Air/Vacuum Valves
Ball & Cone Valves
Willamette Ball and Cone Valves
Butterfly Valves
DeZURIK BHP High Performance Butterfly Control Valves
DeZURIK BOS-US Resilient-Seated Butterfly Valves
Check Valves
APCO Check Valves
Hilton Check Valves
Control Valves
DeZURIK RCV Rotary Control Valves
DeZURIK VPB V-Port Rotary Control Valves
Knife Gate Valves
DeZURIK KGC-ES Extended Service Cast Stainless Steel Knife Gate Valves
DeZURIK KGC-HD Heavy Duty Cast Stainless Steel Knife Gate Valves
Plug Valves
DeZURIK PEF Full-Port Eccentric Plug Valves
DeZURIK MG and AM Manual Gear Actuators
DeZURIK R1, R2, and R3 PowerRac® Cylinder Actuators
DeZURIK Rotary Diaphragm Actuators
Special Custom and Fabricated Designs