| Media: | Water |
|---|---|
| Driving Mode: | Manual |
| Connection Form: | Wafer |
| Structure: | Centre Sealing |
| Seal Form: | Force Sealed |
| Valve Stem: | Normal |
| Samples: |
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| Customization: |
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BETTER WAFER TYPE Butterfly Valves
Specification Features:
• Wafer Type Butterfly Valve equiv. DEMCO
• Size:DN50-300
• Material:
a) Body: CI(cast iron ,GG25 ), DI (ductile iron ,GGG40)
b) Disc: DI,CF8,F8M ,95400,I+Nylon,DI+PTFE
c) Seat: EPDM, NBR, TEFLON, ITON
• Working temperature: -10 ~ +150°C
• Nominal Pressure:PN10 PN16 conforms to API598
• Handles available: gear operators, electric and pneumatic control actuators
• Medium available: water, sewage, sea water, air, foodstuff and oil
• Design standard: API609/EN593
• End flange DINPN10/PN16, BS4504PN10/PN16, ANSI class125#/calss150#
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
Base Part Number for Reference
| 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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