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Product Description

GBV200 Proportional valve is a load sensitive and post-pressure compensated proportional valve. For post-pressure compensation valve, it can distribute flow proportionally. Because of the pressure compensation, working flow is independent of load. All the proportional valves in this series have been load sensing and spring return. We can choose different cartridge unit for the main valve body to accomplishdifferent function.
This series valve is building with modular design concept, system designer can choose differentmodule to accom-plish various complicated system design. Valve spool can provide excellent flow characteristics and low flow force.

Functions

  • Inlet section with priority valves
  • Inlet section matches with fixed displacement pump
  • Inlet section matches with variable displacement pump
  • P. O. Check Valve
  • One-way throttle valve
  • Multiple control operations
  • Overload protections
  • Manual proportional valve can provide mechanical positioning, friction positioning
  • Manual proportional valve can provide floating function
  • Overload protections
  • Manual proportional valve can provide mechanical and friction function
  • Manual proportional valve can provide main valve with float function

Options

  • Manually controlled proportional valve or mechanically controlled flow sharing proportional valve
  • Hydraulic pilot controlled proportional valve or hydraulic pilot controlled flow sharing proportional valve
  • Electrically controlled on/off valve or electrically controlled flow sharing proportional valve
  • Electro-hydraulic proportional valve or electro-hydraulic flow sharing proportional valve
  • Mixture proportional valve (sections with proportional flow sharing and pre-pressure compensation)

Ordering Code

Technical Parameters

Max. pressureP port(Con.)310 bar[4495 psi]
P port(Int.)350 bar[5075 psi]
A/B port(Con.)310 bar[4495 psi]
A/B port(Int.)350 bar[5075 psi]
T port(Static/dynamic)25/40 bar[365/580 psi]
Rated flowP port100 l/min[22US gal/min]
A/B port55 l/min[12US gal/min]
Spool StrokeDead band±1.5 mm[±0.06 in]
Proportional range±5.0 mm[±0.2 in]
Floating position±7.5 mm[±0.3 in]
Max. internal leakage at 100bar [1450 psi] and 21mm²[102 SUS]A/B → T Unbuffered valve20 cm³/min[1.85 in³/min]
A/B → T Buffer valve system setup 30 bar ystem setup 30 bar  25 cm³/min[2.15 in³/min]
Oil port
(Temperature)
Recommend30→60℃[86→140 ℉]
Min.-30℃[-22 ℉]
Max.90 ℃[194 ℉]
Ambient temperature-30→60℃[-22→140 ℉]

Dimensions

Application Areas

RYAN GH series cycloidal motors are widely used in conveyors, textile machinery, mining machinery, industrial processing, cooling equipment,
engineering machinery, and agricultural machinery.

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