Valves and Special Products, including filter vessels, butterfly valves, hazardous waste containers, and high-strength carbon fiber vessels, are carefully crafted to customer specifications at Ershigs.  Typical are the corrosion-resistant valves needed to balance air and gas flow.  The valve may also be used for shut off with the incorporation of an O-ring seal.  Composite filters, strainers, and separators are also manufactured to customer specifications to complete a corrosion-resistant system.

Ershigs' special expertise is evident in the company's ability to fabricate or construct to unique customer requirements that do not lend themselves to existing tooling or standard practices.

Ershigs designs, manufactures, fabricates and installs corrosion-resistant products made of Fiberglass Reinforced Plastics (FRP) such as process and effluent piping, abrasion resistant piping, storage and process vessels, stacks and chimney liners, duct systems and valves.