BETTER DEMCO Butterfly Valves Wafer and Lug 
Butterfly Valves are excel design in a variety of applications, cast in both wafer and lug patterns, which features a one-piece body for minimum weight and maximum strength and unique stem hole to ensure a dry stem work. Available in sizes 2" through 48". Application in a wide range of industries: Chemical and petro-chemical, Agriculture, Oil and gas drilling and production, Food and beverage, Water and waste water, Cooling towers, Power, Mining, Marine, etc.
 
BETTER could provide DEMCO copy butterfly valves in full series, NE-C, NE-I, NE-D, NE-I with extension stem, NE-C lug with actuator, also supply the replaceable spare parts of body, seat, disc, upper stem, lower stem, spring pin, retainer, o-ring, bearing. We also produce the general design Type A wafer and LT lug butterfly valve with lower price.
The Cameron DEMCO NE-D butterfly valve, sizes 2" through 12" (50 mm through 300 mm), is a short-neck valve with body notches to fit popular lightweight flange patterns, making it ideal for bulk material handling and the transportation industry. Valves also will center in ASME Class 125/150 flanges.
DEMCO NE-C butterfly valve features a one-piece body for reduced weight and increased strength. The unique stem-hole design in the disc ensures a dry stem journal, and the hard-backed seat allows ease of installation, reliable operation, and is field-replaceable without special tools.
The Cameron DEMCO NE-I butterfly valve, size 2" through 12" (50 mm through 300 mm), is ideal for a wide range of applications in many industries, including food and beverage utilities and process flow lines. Its short neck design is offered in a wide variety of body materials. The valves are designed for installation between ASME Class 125/150 flanges.
Technical Parameter
Size: 2 - 12 inch
Body type & style designation: Long neck NE-C series in wafer and lug type; Short neck NE-D series in wafer notched body; Short neck NE-I series in wafer and lug type
Pressure Rating: 50psi, 200psi, 285psi
Handle design: 10 position locking in basis trim, corrosion-resistant trim and sanitary trim
Operating Temperature: -34 to 204 C degree, depending on seat material selection and application
Standard Material Options
Bodies: Cast iron, ductile iron, WCB
Discs: Nickel Plated Ductile Iron, Bronze and stainless steel, Nylon coated ductile iron
Stem: 416 and 316 Stainless steel, stem extensions are produced to customer specified lengths.
Seat: Buna N, EPDM, Viton