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SUN HYDRAULICS
CNHEXEV


$140.68 USD
  • SUN HYDRAULICS
  • Material:CNHEXEV
  • Model:CNHE-XEV
  • Summary:Cartridge

Quantity in stock: 0

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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 CNHEXEV (CNHEXEV) is a sophisticated hydraulic component designed for efficient fluid control in various hydraulic systems. This spring-biased closed, pilot-to-close check cartridge valve features a bypass orifice, which can be specified by the customer within an allowable range of 0.4 to 6.4 mm. It is engineered to allow flow from port 1 to port 2 while restricting flow in the reverse direction, utilizing a pressure opposition system where the pressure at the pilot port (port 3) and port 2 directly opposes the pressure at port 1 with a nominal pilot ratio of 1.8:1. This valve is particularly notable for its hardened steel seats that provide exceptional wear resistance and contamination tolerance, ensuring long service life and reliability even under challenging conditions. The construction incorporates Sun\u2019s floating style design which minimizes potential internal binding caused by excessive installation torque or variations in cavity/cartridge machining, enhancing overall performance stability. The CNHEXEV offers a substantial capacity of up to 80 gpm (320 L/min), making it suitable for high-flow applications. It requires an installation torque between 150 to 160 lbf\u00b7ft (203 to 217 Nm) and uses a Viton seal kit (990017006) ensuring robust sealing capabilities under various operating conditions. With these features, the CNHEXEV valve is an excellent choice for applications requiring precise control of hydraulic flow with dependable backflow prevention capabilities.

This valve is a spring biased closed, pilot-to-close check cartridge with a bypass orifice. It incorporates a steel seat and is non-vented. The valve allows flow from port 1 to port 2 and restricts flow from port 2 to port 1. Pressure at the pilot (port 3) opposes pressure at port 1 at a ratio of 1.8:1. Pressure at port 2 directly opposes the pilot pressure. Note: The bypass orifice diameter is specified by the customer. See Technical Data below for the allowable orifice range.

  • Features hardened steel seats for excellent wear characteristics and contamination tolerance.
  • 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.
  • With equal pressures at all ports the valve is closed.
  • 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-17A
Series 3
Capacity 80 gpm320 L/min.
Orifice Range .016 - .252 in.0,4 - 6,4 mm
Valve Hex Size 1 1/4 in.31,8 mm
Valve Installation Torque 150 - 160 lbf ft203 - 217 Nm
Seal kit - Cartridge Viton: 990-017-006

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