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SUN HYDRAULICS
COKAXEN


$499.88 USD
  • SUN HYDRAULICS
  • Material:COKAXEN
  • Model:COKA-XEN
  • Summary:Cartridge

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***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Sun Hydraulics directly.***
The Sun Hydraulics COKAXEN (COKAXEN) is a high-performance, pilot-to-close check cartridge valve designed for optimal functionality in hydraulic systems. This valve facilitates flow from port 1 to port 2 while preventing reverse flow, ensuring stable and reliable operation in various applications. With a nominal pilot ratio of 1.8:1, the valve operates effectively by opposing the pressure at port 1 with pressure at the pilot port, maintaining a balance that prevents unintended opening even during momentary pressure losses. The COKAXEN is engineered for use primarily in regeneration circuits where precise control over flow and direction is critical. It is compatible with Sun's T19A cavity at a reduced capacity, but for full functionality, the T19AU cavity is recommended, supporting up to 240 gpm/900 L/min flow capacity. The maximum operating pressure for this valve is robust at 5000 psi/350 bar, and it features minimal leakage, with a maximum rate of only one drop per minute. This model incorporates Sun's floating style construction which reduces risks of internal parts binding due to variations in installation torque or cavity/cartridge machining errors. Additionally, it has been designed with corrosion resistance in mind, suitable for environments where durability and longevity are essential. The valve's installation requires specific torque settings between 350 \u2013 375 lbf ft (474 \u2013 508 Nm), ensuring secure and correct placement. Overall, the Sun Hydraulics COKAXEN check cartridge valve stands out for its reliability, precision control in hydraulic circuit applications, and robust build quality suited for challenging operational conditions.

This valve is a spring biased closed, pilot-to-close check cartridge that has a 1.8:1 pilot ratio. The valve allows flow from port 1 to port 2 and blocks reverse flow. Pressure at the pilot port opposes pressure at port 1 at a ratio of 1.8:1. This valve is most often used in regeneration circuits.

  • These valves will work in Sun's standard T-19A cavity at lower capacity. To realize the full stated capacity, the T-19AU cavity should be used.
  • Nominal pilot ratio is 1.8:1. This means that a pressure of 1000 psi (70 bar) at the pilot port will close a valve against a pressure of 1800 psi (125 bar) at port 1. Any decay or loss of pilot pressure could allow the valve to open, even if it is a momentary decay or loss.
  • Pressure at the port 2 area directly opposes pilot pressure.
  • Reverse flow through the valve from port 2 to port 1 is not possible under any condition.
  • With equal pressures at all ports the valve is closed.
  • Corrosion resistant cartridge valves are intended for use in corrosive environments and are identified by the model code suffix /AP or /LH (see CONFIGURATION section). For further details, please see the Materials of Construction page under TECHNICAL RESOURCES.
  • Incorporates the Sun floating style construction to minimize the possibility of internal parts binding due to excessive installation torque and/or cavity/cartridge machining variations.

Cavity T-19AU
Series 4
Capacity 240 gpm900 L/min.
Pilot Ratio 1.8:11.8:1
Maximum Operating Pressure 5000 psi350 bar
Maximum Valve Leakage at 110 SUS (24 cSt) 1 drops/min.0,07 cc/min.
Valve Hex Size 1 5/8 in.41,3 mm
Valve Installation Torque 350 - 375 lbf ft474 - 508 Nm
Model Weight 2.60 lb1,20 kg
Seal kit - Cartridge Viton: 990-019-006

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