Spool hydraulic directional control valve D636K

hydraulically-operatedpilot-operatedproportional

Product description
Moog valves of the D67x series are hydraulically piloted proportional valves with integrated electronics and optional fieldbus interface. The series uses pistons mounted directly in the valve body and hydraulically piloted pilots, enabling substantially higher flow rates and multiple failsafe options. Pilot options include ServoJet and miniDDV, offering flexibility to match the pilot principle to the application. Valves are available in two- and three-stage designs in sizes 05, 07, 08 and 10. Combined with digital electronics and optional fieldbus interfaces, the D67x series is suitable for industrial production lines as well as testing and measurement systems.

Features

• Optimized valve body design for high rated flow
• Integrated digital electronics for high flexibility
• Optional pilot stages (DDV or ServoJet®) to adapt to application needs
• Excellent dynamic response through improved pilot stages
• Various failsafe options for application-specific requirements

Specifications (overview)
Specifications | D671 | D672 | D673 | D674 | D675
Functions | Flow, Pressure, Flow and Pressure (p/Q), Axis (Position, Speed, Force) | Flow, Pressure, Flow and Pressure (p/Q), Axis (Position, Speed, Force) | Flow, Pressure, Flow and Pressure (p/Q), Axis (Position, Speed, Force) | Flow, Pressure, Flow and Pressure (p/Q), Axis (Position, Speed, Force) | Flow, Pressure, Flow and Pressure (p/Q), Axis (Position, Speed, Force)
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 ∆pN 5 bar per control edge | 30 to 80 l/min | 150 to 250 l/min | 350 l/min | 550 l/min | 1000 to 1500 l/min
Max. flow | 180 l/min | 600 l/min | 1500 l/min | 1500 l/min | 3600 l/min
Max. operating pressure | Port P, A, B - 350 bar (Port T depends on pilot; Port T with external Y - 350 bar)
Step response for 0 to 100% step | 10 to 28 ms | 10 to 44 ms | 13 to 35 ms | 14 to 44 ms | 10 to 43 ms

Electrical data
Supply voltage | 24 V DC (18 to 32 V DC)
Nominal signal options | +/-10 V, +/-10 mA and 4 to 20 mA
Electrical interfaces | 6+PE, 11+PE

Resources (available literature)

• Catalog - D671-D672-D673-D674-D675 Series Proportional Valves
• User manual - Installation and commissioning instructions for series D670/1/2/3/4/5 - Proportional and servo valves

Technical specifications / key data

• Hydraulically piloted proportional valves with integrated electronics and optional fieldbus interface
• Available sizes: 05 (NG10), 07 (NG16), 08 (NG25 / NG25+), 10 (NG32)
• Rated flows depending on type: 30–80 l/min up to 1000–1500 l/min
• Maximum flows: 180 l/min to 3600 l/min (type dependent)
• Max. operating pressure Port P/A/B: 350 bar; Port T depends on pilot or external 350 bar
• Step response (0–100%): typically 10–44 ms depending on type
• Supply voltage: 24 V DC (18–32 V DC)
• Nominal signal options: +/-10 V, +/-10 mA, 4–20 mA
• Electrical interfaces: 6+PE, 11+PE
• Options: fieldbus interface, additional analog inputs for sensors, various failsafe options