Daniel Company


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Ductwork & Accessories



OVERVIEW



Daniel Mechanical offers corrosion and flame resistant ductwork and pipe.


Daniel Mechanical duct and pipe are fabricated from fiber reinforced plastics using hand lay-up and random chop filament winding methods.


A superior product is guaranteed by strict adherence to NBS PS 15-69 dimensional and quality control standards.


Daniel Mechanical is uniquely equipped to install, balance, and performance test complete exhaust and supply air systems. Certified technicians are proficient in training installer crews on the job site in FRP field jointing and installation techniques.


References

Ductwork Design Properties:





Above & below grade filament wound pipe built to H-20 live load calculations in diameters ranging from 4″Ø to 84″Ø.



Standard Fittings:





Round and rectangular elbows with long and short radius, transitions, flanges, end caps, tees, wyes, and laterals


Custom sized rectangular duct and related fittings are available with composite materials and stiffeners where required for structural integrity.



Accessories





DanELAST Bubble-Tight Dampers



Daniel Company offers precision-engineered fiberglass reinforced plastic bubble-tight DanELAST isolation dampers utilizing only highly corrosion resistant parts for air movement and controls.


Bubble-tight DanELAST dampers are fire retardant, corrosion resistant, and UV protected. All components are designed with replaceable parts that are easily disassembled for maintenance. The blade shafts are constructed of custom-milled, solid 316SST metal. Daniel Mechanical Company’s bubble-tight DanELAST damper utilizes a specially formulated elastomer with corrosion resistance equal to and/or superior to EPDM, Hypalon, and even Viton.


Brochure

No circumferential blade seals are required to achieve a full shutoff of the bubble-tight DanELAST isolation damper. This is largely due to the innovative design and expert hand craftsmanship of each key part. By constructing the unitary FRP blade to exact tolerances and without a commonly used circumferential blade seal, the weakest part of the damper is eliminated, thus improving its reliability. No blade stops are utilized, decreasing the pressure loss across the damper when in the full open position. Each bubble-tight DanELAST damper is factory tested to operating pressures exceeding 30 inches w.g. Leakage rates are tested using AMCA 500-D procedures, and the certified ratings are authorized by AMCA.


The bubble-tight DanELAST damper blade is operated using a hand-wheel driven worm gear operator. Pneumatic, electric, or chain-wheel type operators are optional. Long life Teflon bearings and extensively tested molded plastic bushings accessible from the exterior of the damper require minimal maintenance and ensure unrestricted movement of the rotating shaft. All metal parts in contact with process air stream are at a minimum 316 stainless steel and may be manufactured of more exotic metals such as Hastelloy-C and Titanium.


Zero-leakage DanELAST dampers enhance safety by providing greater isolation of process air during shutdown of low pressure exhaust system duct lines conveying hazardous air streams. When dealing with confined space entry conditions, use of bubble-tight DanELAST isolation dampers may reduce safety risks caused by contaminant air leaks.


Bubble-tight DanELAST isolation dampers require far less maintenance, are more durable, and outperform conventional butterfly dampers. Bubble-tight DanELAST dampers range in sizes from 4-inch diameter to 120-inch diameter.



Model 203 Conventional Dampers



Daniel Company also offers a traditional seal-on-blade style damper. These traditional dampers have been tested per AMCA to meet leakage class 1.


Brochure

DanFLEX Flexible Connectors



Provide superior absorption of lateral, torsional, angular, and axial movement experienced in rigid ducting/piping systems.


DanFLEX is constructed of vulcanized layers of polyester tire-cord fabric reinforcement, sandwiched between a 60 to 70 durameter elastomeric inner liner and exterior cover. Tire-cord fabric is layered at an optimal bias angle with Resorcinol Formaldehyde Latex for superior rubber-to-fabric bonding. The elastomer is built as one continuous piece with an integrally molded, hollow-arched volute. 316 stainless steel retainer bands are used with adjustable screw seal type fasteners. DanFLEX is suitable for use in H2S-laden, corrosive environments, and is resistant to ultra violet rays.


Brochure

FEATURES SUPERIOR FLEXIBILITY





DanFLEX flexible connectors provide superior absorption of lateral, torsional, angular, and axial movement experienced in rigid ducting/piping systems due to thermal expansion and contraction, installation misalignment, and vibration.



ELIMINATES HIGH STRESS POINTS





The weakest point of a traditional flexible connector design is located annularly – where the back of the integrally molded elastomer flange meets the tubular section. DanFLEX relieves this high stress area by overlapping the tubular elastomer onto the hubs of the FRP flanges.



INFINITE BOLT HOLE ALIGNMENT CAPABILITY





DanFLEX flexible connector is designed to allow for infinite adjustment capability to accommodate any degree of axial misalignment of bolt holes.





1939 W 11th Street, Ste E. Upland, CA 91786
Email: danmech@sbcglobal.net
Phone: 909.982.1555 | Fax: 909.982.1855