Series D68x - Pilot Operated Proportional Valves for flow control with analog interface
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Features:
- Optimized design of valve bodies for high rated flow
- High energy efficiency due to D633 pilot valve with low internal leakage
- Low range of minimum pilot pressure required
- Integrated amplifier and control electronics for high functional flexibility
- Excellent dynamic response due to high natural frequency of pilot stage
- Different fail-safe options available allowing the best fit to application
- Optionally available: new pilot valve with integrated electronics and position control of the pilot valve
| Specifications | |||||
| D681 | D682 | D683 | D684 | D685 | |
| Control Functions | Flow | ||||
| Mounting Pattern | ISO 4401 Size 05 (NG10) | ISO 4401 Size 07 (NG16) | ISO 4401 Size 08 (NG25) | ISO 4401 Size 08 (NG25+) | ISO 4401 Size 10 (NG32) |
| Hydraulic Data | |||||
| Rated Flow at ∆p 5 bar (75 psi) per land | 30 to 80 l/min (8 to 21.1 gpm) |
150 to 250 l/min (39.6 to 66 gpm) |
350 l/min (92.4 gpm) |
550 l/min (145.3 gpm) |
1000 - 1500 l/min (264.1 to 396.2 gpm) |
| Maximum Flow | 180 l/min (47.5 gpm) | 600 l/min (158 gpm) | 1,500 l/min (396.2 gpm) | 1,500 l/min (396.2 gpm) | 3,600 l/min (951 gpm) |
| Maximum Operating Pressure | Port P, A, B - 350 bar (5,000 psi) Port T with Y internal - 70 bar (1.000 psi) Port T with Y external - 250 bar (3,600 psi) |
Port P, A, B - 350 bar (5,000 psi) | Port P, A, B - 350 bar (5,000 psi) Port T with Y internal - 50 bar (725 psi) Port T with Y external - 350 bar (5,000 psi) |
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| Port T with Y internal - 70 bar (1.000 psi) | |||||
| Port T with Y external - 350 bar (5,000 psi) | |||||
| Step Response Time for 0 to 100% Step | 9 to 11 ms | 10 to 13 ms | 10 to 18 ms | 11 to 26 ms | 35 to 40 ms |
| Electrical Data | |||||
| Supply Voltage | 24 VDC (18 to 32 VDC) | ||||
| Rated Signal Options | +/-10 V, +/-10 mA and 4 to 20mA | ||||
| Electrical Connectors | 6+PE, 11+PE | ||||
