Pressure Compensated Priority Flow Control Valves | Product Series

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Índice de caudal máximo

Rango de la pantalla del caudal

Ajuste de caudal estándar

Mecanismo de ajuste

Material de la junta

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Pressure Compensated Priority Flow Control Valves

Pressure Compensated Priority Flow Control Valves

Puntos de venta

Pressure compensated priority flow control valves maintain constant flow regardless of changes to inlet pressure for flows up to 90 lpm (24 gpm) and pressures up to 420 bar (6000 psi); excess flow is diverted once the priority flow requirement is met.

Especificaciones técnicas

  • Índice de caudal máximo: 4, 15, 18, 40 gal/min, 15, 56.3, 70, 151.4 L/min
  • Rango de la pantalla del caudal: N/A, 0.7-1.0, 0.8-1.4, 1.2-1.9, 1.7-2.7, 2.3-3.6, 3.1-5.0, 4.5-7.0, 6.3-9.3 gal/min This is the regulated flow range (min - max), N/A, 2.6-3.8, 3.0-5.3, 4.5-7.1, 6.4-10.1, 8.6-13.5, 11.6-18.8, 16.9-26.3, 23.6-34.9 L/min This is the regulated flow range (min - max)
  • Ajuste de caudal estándar: N/A, 1, 1.8, 2, 3, 4, 5, 5.3, 6, 6.6, 7, 8, 11.9 (inlet) gal/min, N/A, 3.8, 7, 7.5, 11.3, 15, 18.8, 20, 22.5, 25, 26.3, 30, 45 (inlet) L/min
  • Mecanismo de ajuste: Fixed, Knob, Screw, Tamper Resistant
  • Material de la junta: Nitrile, Fluorocarbon
  • Caudal: 4, 15, 18, 40 gal/min, 15, 56.3, 70, 151.4 L/min
  • Caudal regulado máximo: N/A, 4, 12, 24 gal/min, N/A, 15, 45, 90 L/min
  • Caudal de prioridad máxima: N/A, 8, 9 gal/min, N/A, 30, 33.8 L/min
  • Presión de trabajo máxima: 3500, 5000, 6000 psi, 245, 350, 420 bar
  • Rango de presión de entrada máxima: 3500, 5000, 6000 psi, 245, 350, 420 bar
  • Tamaño de la cavidad: 3A, C08-3, C10-3
  • Función: Flow Regulator Valve
  • Tipo de accionamiento: Pressure Compensated
  • Tipo de operación: Automatic, Manually operated
  • Configuración: Priority Flow
  • Precisión de caudal: N/A, 20%
  • Para tipo de fluido: Mineral-based or synthetic hydraulic fluids
  • Viscosidad cinemática máxima: 45-2000 SSU (6 to 420 cSt)
  • Clasificación de eficiencia del filtro: ISO 4406 18/16/13, SAE Class 4
  • Material de la válvula: All parts steel. All operating parts hardened steel
  • Par de instalación: 16, 30, 37, 63 lb-ft, 22, 40, 50, 85 Nm
  • Temperatura de funcionamiento: -30 to +250, -15 to +400 °F, -34 to +121, -26 to +204 °C
  • Temperatura máxima de funcionamiento: +250, +400 °F, +121, +204 °C
  • Temperatura mínima de funcionamiento: -30, -15 °F, -34, -26 °C
  • Peso: 0.18 to 1 lbs, 0.08 to 0.45 kg
  • Material del cuerpo: N/A
  • Tamaño de la conexión: N/A
  • Tipo de conexión: N/A
Safety Warning

Descripción completa del producto

Parker’s family of pressure compensated priority flow control valves feature a proven design that allows for a reliable and repeatable flow compensation curve throughout a wide pressure range while ensuring priority flow is met. These valves can operate with hydraulic system flows as high as 90 lpm and pressures up to 420 bar with a selection of adjustment and tamper-proof options. Parker’s pressure compensated priority flow control valves are ideal for steering, brake, or actuator control applications within a broad range of markets, such as the agriculture, construction, material handling, industrial, and oil & gas markets.

Markets:
• Agriculture
• Construction Equipment
• Material Handling Equipment
• Miscellaneous Industrial
• Miscellaneous Mobile
• Oil & Gas

Features/Benefits:
• Fine adjustments
• Reverse flow function
• Hardened working parts for maximum durability
• Tamperproof options available
• All external parts zinc plated

Applications:
• Steering applications
• Actuator speed control
• Meter-in circuits

Additional Technical Insight:
Priority style pressure compensator flow control valves maintain constant priority flow to one leg of a circuit regardless of any changes in load or inlet pressure. Once the priority flow is satisfied, any excess flow may be used in other parts of the circuit. The valve consists of a control orifice housed within a spring biased compensator spool. This orifice may be fixed or adjustable. The priority port is normally open while the bypass port is normally closed. As flow enters the inlet port of the cartridge, it passes through the control orifice. A pressure differential is created across the compensator spool. If the inlet flow exceeds the setting of the valve, the force produced by this pressure differential exceeds the spring force and shifts the compensator spool; opening up the bypass port, and bypassing the excess flow. If the load pressure at the bypass port is greater than the load pressure at the priority port, the compensator spool will further shift restricting the priority flow to that of the valve setting. However, caution should be taken if the priority gets blocked so that no flow can pass through the control orifice, the compensator spool will shift, blocking the bypass port and allowing inlet pressure to go to full system relief pressure. It is common to place an external relief valve downstream of the priority flow port to prevent a no flow condition.

Documentos relacionados

Literature and Reference Materials
HVS Global Cartridge Valve Catalog MSG15-3504
Flow Control Valves Technical Tips
MSG15-3504 Flow Control Valves Catalog Pages - All
Selector Guides
Competitive Crossover Tool
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