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SUN HYDRAULICS
CNFEXAV


$79.82 USD
  • SUN HYDRAULICS
  • Material:CNFEXAV
  • Model:CNFE-XAV
  • 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 CNFEXAV (CNFEXAV) is a sophisticated hydraulic valve designed for specific fluid control applications. This spring-biased, pilot-to-close check cartridge valve features a bypass orifice whose diameter can be specified by the customer, accommodating a range from 0.4 mm to 3.2 mm. It efficiently allows fluid flow from port 1 to port 2 while restricting flow in the reverse direction, with the pressure at pilot port 3 countering the pressure at port 1 at a nominal ratio of 1.8:1. Constructed with hardened steel seats, the CNFEXAV offers exceptional wear characteristics and tolerance to contamination, making it suitable for rigorous industrial environments. The valve's operation is influenced by the pressure conditions at its ports; equal pressures across all ports keep the valve closed, whereas any decay in pilot pressure can momentarily open it. This feature ensures responsive and reliable control in various operational scenarios. The CNFEXAV also incorporates Sun Hydraulics' floating style construction which minimizes internal parts binding\u2014a common issue arising from excessive installation torque or variations in cavity/cartridge machining. This design enhancement contributes to the valve's durability and consistent performance. Key technical specifications include a maximum flow capacity of 40 gpm (160 L/min), and installation requires a torque between 45 and 50 lbf-ft (61-68 Nm). The valve is compatible with Viton seal kits, specifically model number: 990202006, ensuring robust sealing capabilities under diverse conditions. Ideal for applications requiring precise fluid control where backflow prevention is critical, this valve stands out for its reliability and customization options provided by Sun Hydraulics.

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-2A
Series 2
Capacity 40 gpm160 L/min.
Pilot Ratio 1.8:11.8:1
Orifice Range .016 - .127 in.0,4 - 3,2 mm
Valve Hex Size 1 1/8 in.28,6 mm
Valve Installation Torque 45 - 50 lbf ft61 - 68 Nm
Seal kit - Cartridge Viton: 990-202-006

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