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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
| Series NE-C, 2"-12" Wafer and Lug In.(mm) |
| Description |
2 |
2-1/2 |
3 |
4 |
5 |
6 |
8 |
10 |
12 |
| 200psi |
BT22119 |
BT22120 |
BT22121 |
BT22122 |
BT22123 |
BT22124 |
BT22125 |
BT22126 |
BT22127 |
| 285psi |
BT22225 |
BT22226 |
BT22227 |
BT22228 |
BT22229 |
BT22230 |
BT22231 |
BT22232 |
BT22233 |
| 50psi |
BT22234 |
BT22235 |
BT22236 |
BT22237 |
BT22238 |
BT22239 |
BT22240 |
BT22241 |
BT22242 |
| Series NE-I, 2"-12" Wafer and Lug In.(mm) |
| Description |
2 |
2-1/2 |
3 |
4 |
5 |
6 |
8 |
10 |
12 |
| 200psi |
BT22128 |
BT22129 |
BT22130 |
BT22131 |
BT22132 |
BT22133 |
BT22134 |
BT22135 |
BT22136 |
| 285psi |
BT22252 |
BT22253 |
BT22254 |
BT22255 |
BT22256 |
BT22257 |
BT22258 |
BT22259 |
BT22260 |
| 50psi |
BT22261 |
BT22262 |
BT22263 |
BT22264 |
BT22265 |
BT22266 |
BT22267 |
BT22268 |
BT22269 |
| Series NE-D, 2"-12" Wafer In.(mm) |
| Description |
2 |
2-1/2 |
3 |
4 |
5 |
6 |
8 |
10 |
12 |
| 200psi |
BT22181 |
BT22129 |
BT25093 |
BT22183 |
BT22184 |
BT22185 |
BT22134 |
BT22186 |
BT22136 |
| 285psi |
BT22279 |
BT22253 |
BT25135 |
BT22281 |
BT22282 |
BT22283 |
BT22258 |
BT22284 |
BT22260 |
| 50psi |
BT22285 |
BT22262 |
BT25132 |
BT22287 |
BT22288 |
BT22289 |
BT22267 |
BT22290 |
BT22269 |
| Series NF-C, 14"-36" Wafer and Lug In.(mm) |
| Description |
14 |
16 |
18 |
20 |
24 |
30 |
36 |
/ |
/ |
| 150psi |
BT23820 |
BT23821 |
BT23822 |
BT23823 |
BT23824 |
BT24141 |
BT24357 |
/ |
/ |
| 50psi |
BT24440 |
BT24441 |
BT24442 |
BT24443 |
BT24444 |
BT24924 |
BT25061 |
/ |
/ |
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