Spunstrand Inc. - 620 North Post Street - Post Falls, ID 83854 - 208-777-7444
Capabilities and Variations
Spunstrand® Inc. manufactures both Zero-Leak (ZL) and Balancing Dampers (BA) for the corrosive fume handling industry for a variety of environments and applications. These dampers can be used to regulate air flow and/or isolate a particular part of a system. They are constructed of FRP providing a durable corrosion resistant product that can be used for numerous industrial applications such as: semiconductor manufacturing plants, wastewater treatment plants, pharmaceutical facilities, pulp and paper plants, metal plating ships and chemical facilities.
The FRP duct industry’s first Zero-Leak damper was installed in 1995 and patented by Spunstrand® Inc. . The damper was developed by Spunstrand® Inc.’s design team to be certified leak free through individual water testing. Each Spunstrand® Inc. ZL damper is manufactured with a resilient, machined rubber seat permanently formed into the duct wall. Balancing dampers are applicable where ultra low leakage is not critical. These leakage rates should not exceed 5%.
Why Spunstrand Zero-Leak and Balancing Dampers?
Over forty years of FRP experience
100 millimeter RTP-1 quality clear liners
Balancing dampers available in sizes 2″-96″ Ø
Better workmanship, individually quality tested
Delivered fully operational and tested
Zero-Leak dampers available in sizes 8″–96″ Ø
Resistant to corrosion and environmental wear
Standard options other manufacturers charge for
Wastewater treatment plants
Food processing facilities
Glass and metal finishing
Pulp and paper industry
Scrubber and fan isolation
Automated processes modulation
Tool install or change out isolation
Clean room isolation
Spunstrand® Inc.’s Zero-Leak and Balancing series dampers are manufactured under an ISO 9000 based Quality Assurance program. All dampers are inspected for quality, blade fit, range of operation, and each Zero-Leak damper is tested and certified leak free to 6″ water column, and up to one psi when requested.