INTRODUCTION
D671 Butterfly Valves are the ideal solution for the interception of gravity-fed or pneumatically conveyed dry powders or granules in a variety of bulk solids handling and processing plants.
TECHNICAL SPECS
Description
D671 Butterfly Valves consist of a single block body manufactured from die-cast , a carbon steel or stainless steel disc including shafts, and an elastomer seal. An adjusting lever or pneumatic or electric actuator can be applied to the valve. The three type actuators are perfectly interchangeable. Interchangeability of the drive shaft (standard: ISO 5211; option:DIN 5482) and universal connection to different size flanges results in variety of configurations.
Function
D671 Butterfly Valves are used in virtually all types of bulk solids processing plants where interception of gravity-fed or pneumatically conveyed dry powders or granules is required. This type of valve is particularly suitable for pneumatic conveying operations, in both dilute and dense phase applications, provided the operating pressure does not exceed 10 bar (145PSI). Due to its particular design features and the materials used, the VW Butterfly Valve represents the ideal solution in many cases, both from a technical and an economic point of view.
Features
Ø = DIN 100 ~ DIN 400
Gauge: EN 558 Series 20; ISO 5752; API 609
Coupling flanges: DIN 2501 PN 2.5 / 6 / 10 / 16; ANSI B 16.5, class 150
Coupling flange surface design: DIN 2526, form A
Actuator coupling flange: EN ISO 5211 or DIN 5482
Valve identification: DIN EN 19
Leak test: EN 12 266-1, EN 12 266-2, A grade
Operating temperature: -20 °C ~ 90 °C (-4 °F ~ 194 °F)
Differential pressure: max. 10 bar (145PSI)
Operating pressure: max.10 bar (145PSI))
Benefits
Few components
Interchangeable discs
Replaceable gasket
Highly abrasion-resistant
Easy to fit
Quick maintenance
Ex-stock delivery
Model | Size (mm) | Actuator | Media Pressure | Media Temperature | Actuator Pressure |
D671X-50-DA | 50 | DA50 | Vacuum to 10 BAR | -10°C to 100°C | 6 to 8 BAR |
D671X-65-DA | 65 | DA65 | Vacuum to 10 BAR | -10°C to 100°C | 6 to 8 BAR |
D671X-80-DA | 80 | DA75 | Vacuum to 10 BAR | -10°C to 100°C | 6 to 8 BAR |
D671X-100-DA | 100 | DA85 | Vacuum to 10 BAR | -10°C to 100°C | 6 to 8 BAR |
D671X-125-DA | 125 | DA92 | Vacuum to 10 BAR | -10°C to 100°C | 6 to 8 BAR |
D671X-150-DA | 150 | DA110 | Vacuum to 10 BAR | -10°C to 100°C | 6 to 8 BAR |
D671X-200-DA | 200 | DA125 | Vacuum to 10 BAR | -10°C to 100°C | 6 to 8 BAR |
D671X-250-DA | 250 | DA140 | Vacuum to 10 BAR | -10°C to 100°C | 6 to 8 BAR |
D671X-300-DA | 300 | DA160 | Vacuum to 10 BAR | -10°C to 100°C | 6 to 8 BAR |
DN | Actuator | A | B | F | H1 | H2 | H3 | L |
50 | DA50 | 138 | 70 | 71 | 71.3 | 125 | 90 | 43 |
65 | DA65 | 138 | 70 | 71 | 77.5 | 140 | 90 | 46 |
80 | DA75 | 162 | 81 | 80.4 | 89.2 | 145 | 101 | 46 |
100 | DA85 | 162 | 81 | 80.4 | 101.5 | 165 | 101 | 52 |
125 | DA92 | 208 | 97 | 94.5 | 117.5 | 178 | 117 | 56 |
150 | DA110 | 245 | 116 | 109 | 145 | 185 | 136 | 56 |
200 | DA125 | 310 | 142 | 137 | 163.5 | 225 | 172 | 60 |
250 | DA140 | 340 | 154 | 148 | 190.5 | 257 | 184 | 68 |
300 | DA160 | 401 | 179 | 168.5 | 230 | 302 | 209 | 78 |
All dimensions in mm unless shown otherwise.
Size 50mm to 300mm
Body FBE coated Cast Iron
Seat EPDM
Disc 304 Stainless Steel
Pressure 10 BAR
Actuation Double Acting Pneumatic
