BT-BFV NE-D series Butterfly Valve
DEMCO NE-D Style Notched Wafer Body in 2-12inch 


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 

OEM Part no. reference:
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 22118 22129 22130 22131 22132 22133 22134 22135 22136
285 psi 22252 22253 22254 22255 22256 22257 22258 22259 22260
50 psi 22261 22262 22263 22264 22265 22266 22267 22268 22269
Series NE-D 2"-12"
200 psi 22181 22129 25093 22183 22184 22185 22134 22186 22136
285 psi 22279 22253 25135 22281 22282 22283 22258 22284 22260
50 psi 22291 22271 25136 22293 22294 22295 22267 22290 22269