Introduction
The Di Nicola centric butterfly valves and gas damper series delivers heavy-duty, highly cost-effective flow control and isolation functionality tailored for a diverse range of civil and industrial process lines. Offering clear economical structural benefits, these premier non-return and isolation systems ensure absolute one hundred percent tight shut-off with zero leakage, minimal hydrodynamic pressure drop parameters, and superior structural rigidity relative to their lightweight footprint. Streamlined installation procedures coupled with simple component accessibility greatly reduce lifelong maintenance costs while yielding a long, reliable operational service life across hot or cold fluids, aggressive chemical compounds, or high-temperature gas and industrial exhaust lines.
Key Features
Complete layout execution versatility incorporating Wafer, Lug, Monoflange (U-type), Double Flanged, and quick-assembly Grooved End connections , straightforward pipeline installation utilizing a dynamic integrated elastomer seat design that fully eliminates the requirement for separate companion flange gaskets , high-integrity mechanical shaft-to-disc connection secured by robust stainless steel pins or heavy industrial keys , long-life low-friction bushings in bronze or high-performance composite materials that drastically minimize open-and-close bare shaft operating torque requirements , flexible fully interchangeable manual lever or worm gear actuation units as well as high-cycle pneumatic double-acting or spring-return actuators outfitted with custom limit switch boxes and direct-mount solenoid controls , highly specialized single-disc or multiport multidoor dampers engineered and manufactured exclusively on client demand and specifications to operate smoothly under extreme exhaust temperatures reaching up to two hundred and fifty degrees Celsius.
Technical Data Table
Applications and Benefits
- Industrial sewage lines, wastewater purification plants: handling circuits for highly viscous liquids or dense sludges;
- Chemical processing plants, petrochemical refineries, pulp & paper mills, and food and beverage manufacturing plant: superior material compatibility and protective elastomer ranges;
- Industrial exhaust gas extraction: high-temperature smoke conveying, chimney damper circuits air mitigation systems and metallurgic and chemical flue gas ducting lines.
Why Choose Our Products
Di Nicola manufactures single eccentric butterfly valves type lug, wafer and flanged in ductil iron EN GJS 400 to EN GJS 500 , malleable cast iron GJL 250 and high- nickel NI resist , carbon steel ASTM 216 WCB / N + GP 240GH , fabricated EN S275J0 steel and stainless steel with high nickel content from over fifty years with a size between 32 and 1200 mm and nominal pressures from 2.5 bar to 16 bar and ANSI Class 125 in Class 150 . Di Nicola valves answer to major international standards such as EN 593 , EN ISO 1074-1 , EN ISO 1074-2 , DIN 3202 , EN 558 – series 20 , and AWWA C – 504 . With marked according to EN ISO 19 and flanges according to EN 1092-2 , ISO 2531, BS4504 , ANSI B16.10 , test according to EN 12266-1 . The company Di Nicola produces non-standard at the request of customers.
Select the exceptional structural reliability and lifelong performance of our centric butterfly valves and custom fume dampers to maximize the safety parameters of your process infrastructure. Contact our technical sales experts today to receive expert advice on tailored construction parameters or to quickly secure an exact customized quotation according to your engineering dimensional demands.
