Japan, Toho Seisakusho
Toho Seisakusho VVB-2712S. VVB-2712F Electric Ball 2-Way Control Valve
Made in Japan
Manufacturer: Toho Seisakusho
Model: VVB-2712S. VVB-2712F
Feature
| VVB-2712S type | V-ROLL electric 2-way control valve (screwed joint) |
| VVB-2712F type | V-ROLL electric 2-way control valve (flange joint) |
The VVB-2712S type (threaded joint) and VVB-2712F type (flange joint) V-ROLL electric ball two-way control valve is a control valve that can perform proportional control with the equal percentage characteristic of cast iron.
Size: 15-40A available.
Specification
| Connection diameter | 15~40A | ||||||||
| Connection type | VVB-2712S: Threaded pipe (JIS B0203) | ||||||||
| VVB-2712F: JIS10K flat face flange (JIS B2239) | |||||||||
| Type of fluid | Non-corrosive water, high temperature water, air, oil, non-corrosive gas, saturated steam up to 0.5MPa | ||||||||
| maximum fluid pressure | 1MPa, however, saturated steam: 0.5MPa | ||||||||
| maximum fluid temperature | 160℃ | ||||||||
| Flow characteristics | Equal percentage characteristics | ||||||||
| Maximum working pressure difference | 1MPa | ||||||||
| Cv value | Connection diameter | 15A | 20A | 25A | 32A | 40A AA | |||
| 0.8 | 1.6 | 3 | 6 | 11 | 19 | 31 | 52 | ||
| Valve main material | Main body | FC200 | |||||||
| ball | SUS304 | ||||||||
| stem | SUS304 | ||||||||
| sheet | PTFE with graphite | ||||||||
| (PTFE with carbon over 120℃) | |||||||||
| Power supply voltage of operating unit | 1φ | ||||||||
| AC24V±10%(50/60Hz) | |||||||||
| (AC100V and AC200V can be manufactured for B type and C type only) | |||||||||
| Valve opening/closing time | 72/60s (50/60Hz) | ||||||||
| control operation | B type | on off | |||||||
| C/CX/CE/E type | position proportional | ||||||||
| power consumption | B/C type | max.5VA | |||||||
| CX/CE type | max.8VA | ||||||||
| Motor type | Synchronous motor, class E insulation, continuous rating | ||||||||
| signal contact | B type only SPST x 2 (ON when fully open, ON when fully closed) | ||||||||
| Contact capacity: AC125V/250V 5/3A (non-inductive load) | |||||||||
| input signal | CX type | 135Ω potentiometer 3 wire connection | |||||||
| CE type | Either 4 to 20 mA DC, 1 to 5 V DC or 0 to 10 V DC signal | ||||||||
| protective structure | IP55 | ||||||||
| Permissible ambient temperature | -10～+50℃ | ||||||||
| Main material | Case | aluminum alloy casting | |||||||
| Yoke (middle stand) | Steel plate | ||||||||
| Paint color | operating machine | Munsell 2.5PB 3.5/10(32A,40A) 2.5PB5/6(15A~25A) | |||||||
| )Control valve body | silver | ||||||||
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