AMMtech srl
About
AMMtech srl, founded in 2007 and based in Porcari (Lucca), Italy, manages the complete production cycle — from consulting and design through manufacturing, testing, and after-sales support — for industrial damper valves and knife gate valves controlling gas, flue, and air flows across diverse process industries. The company offers more than 20 product models spanning butterfly dampers, louver dampers, guillotine dampers, diverter dampers, non-return dampers, and knife gate valves in sizes from DN 50 to DN 4000. Signature innovations include the AMM740 double-eccentric butterfly damper achieving FCI Class VI zero leakage with seat options in silicon, NBR, Viton, EPDM, or FEP/PFA for corrosive service up to 200 degrees Celsius, and the AMM710T and AMM720T louver systems delivering 100 percent air-sealing tightness. The AMM761 guillotine damper provides zero-leakage isolation in circular, square, or rectangular duct configurations. Available materials include carbon steel, Corten, AISI 304, 316, 310, and 321, with refractory-lined (AMM786) and fiber-lined (AMM785) variants for extreme thermal environments. AMMtech holds ISO 9001:2015, ATEX, SIL 3, and EAC certifications. As part of the AMMtech group alongside AMMcut (fiber laser cutting) and AMMcolor (industrial painting), the company provides vertically integrated manufacturing from raw material through finished product, serving water and waste treatment, biogas, biomass, cogeneration, petrochemical, power, cement, steel, marine, and glass sectors.
Key Products
On-off or modulating butterfly damper for gas/flue flow control, DN 150-1500, available in carbon steel or AISI 304/316.
Compact butterfly damper for control or on/off service, DN 50-300, AISI 316 with Leakage Class II.
Modulating double-blade butterfly damper for large duct applications, DN 300-3000.
Heavy-duty version of the butterfly damper for demanding conditions, DN 200-3000.
Rectangular or square louver damper for on/off or modulating flow control in large ductwork.
Louver damper with 100% air sealing system for zero-leakage isolation applications.
Modulating radial vane damper for precise flow control, DN 300-2000.
Multi-blade louver damper for modulating service in rectangular or square sections.
Multi-louver damper with 100% air sealing for complete gas tightness in critical applications.
Control or on-off butterfly damper, DN 150-1500, in carbon steel, Corten, or stainless steel.
Double-eccentric butterfly damper achieving Class VI leakage (perfect seal) with multiple seat material options.
FEP/PFA seated double-eccentric damper for 200°C corrosive gas environments with Class VI seal.
Double-blade butterfly damper with air sealing achieving 100% tightness, DN 150-3000.
Three-way bypass damper for gas routing and isolation, DN 100-2500.
Zero-leakage slide gate damper for circular, square, or rectangular ducts, DN 100-3000.
Gas distributor valve for routing gas flow between multiple duct paths.
Butterfly damper for extreme temperature applications using AISI 310/321 materials.
Insulated damper with fiber lining for thermal applications requiring surface temperature control.
Refractory-lined damper for extreme heat applications in industrial furnace and kiln exhaust systems.
Check damper with counterweight operation preventing reverse gas flow, DN 150-2500.
On-off or modulating knife gate valve available in cast iron or AISI 316, DN 50-600.
Proportional control knife gate valve for modulating service, DN 100-400, flanged connections.
Metal-seated triple offset butterfly valve for tight shutoff, DN 100-800, available in multiple pressure ratings.
Lightweight aluminium butterfly valve for on-off or modulating service, DN 100-400.
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