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DEMCO Butterfly Valves NE-C NE-I NE-D Type

DEMCO 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.

The Cameron DEMCONE-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-Cbutterfly 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 DEMCONE-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 - 12inch

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: ten 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

Part no. reference:

  1. 6” (150 mm) NE-C, 200 psi, Wafer, Standard Trimwith Handle , Series NE-C 2”-12”

200 psi 22119 22120 22121 22122 22123 22124 22125 22126 22127

285 psi 22225 22226 22227 22228 22229 22230 22231 22232 22233

50 psi 22234 22235 22236 22237 22238 22239 22240 22241 22242

1112311 1114311 1115311 1122311 1124311 1125311 1212311 1214311 1215311 1222311 1224311 1225311 5112311 5114311 5115311 5122311 5124311 5125311 5212311 5214311 5215311 5222311 5224311 5225311

Series NE-I 2”-12”

200 psi

285 psi

50 psi 22261 22262

Series NE-D 2”-12”

200 psi

285 psi

50 psi 22291 22271



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