ARI Valve Corporation are manufacturers of hand operated valves, including bellows seal and butterfly valves. ARI's bellows seal valves are manually operated and reliably sealed under the most severe conditions. Hand operated butterfly valves come in standard and stainless steel for aggressive media.

AES hand operated gate valves are available in carbon steel and various grades of stainless steel. These manually operated valves come in API 600 wedge gate and API 6D through conduit designs. Choose from Class 150, 300, 600, 900, 1500 and 2500 designations.

Pneumadyne are manufacturers of hand operated control valves for pneumatic systems. Types of manually operated valves offered include 2-way and 3-way normally closed or normally open, 4-way, stainless steel, sub-micro, 2-position toggle, cartridge, and many others.

Pro Dyne Corporation are distributors of Nigo hand operated ball valves in forged brass or stainless steel. Each are available in 1, 2 and 3-piece designs. Manually operated forged brass valves feature 600 psi WOG, while stainless steel valves offers 1000 psi WOG. All are UL/FM/AGA/CGA/CSA approved.

Circle Valve Technologies, Inc. is a distributor of valve products from a variety of manufacturers. Available products include the 9500 series hand operated shutoff valve featuring a compact size, leak-proof design, handle stop, positive position indication and connection sizes of 1/8" and 1/4".