SUN HYDRAULICS
CNHEXFN
$134.73 USD
- SUN HYDRAULICS
- Material:CNHEXFN
- Model:CNHE-XFN
- Summary:Cartridge
Quantity in stock: 0
***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 CNHEXFN (CNHEXFN) is a highly specialized hydraulic valve designed for precise fluid control in hydraulic systems. This spring-biased closed, pilot-to-close check cartridge valve features a bypass orifice whose diameter can be specified by the customer, providing flexibility in application-specific hydraulic flow requirements. The valve permits flow from port 1 to port 2 while restricting flow in the opposite direction, ensuring efficient operation and safety within hydraulic circuits. A key feature of the CNHEXFN is its nominal pilot ratio of 1.8:1, which allows it to close against higher pressures at port 1 when activated by sufficient pilot pressure at port 3. This characteristic is crucial for applications requiring reliable operation under varying pressure conditions. The hardened steel seats incorporated into the design offer excellent wear characteristics and contamination tolerance, enhancing the valve's durability and lifespan. The CNHEXFN uses Sun's floating style construction to minimize internal parts binding, which could result from excessive installation torque or variations in cavity/cartridge machining. This construction feature ensures consistent performance and reliability even under challenging installation conditions. Technical specifications include a T17A cavity designation, Series 3 compatibility, and a maximum capacity of 80 gpm (320 L/min). The allowable orifice range for this model spans from .016 to .252 inches (0.4 to 6.4 mm), providing considerable adaptability for different hydraulic system requirements. Installation requires a specific torque of 150-160 lbf ft (203-217 Nm), and the valve hex size is standardized at 1\u00bc inches (31.8 mm). For maintenance or replacement needs, a Viton seal kit (990017006) is recommended due to its compatibility with various hydraulic fluids and environmental conditions.
The Sun Hydraulics CNHEXFN (CNHEXFN) is a highly specialized hydraulic valve designed for precise fluid control in hydraulic systems. This spring-biased closed, pilot-to-close check cartridge valve features a bypass orifice whose diameter can be specified by the customer, providing flexibility in application-specific hydraulic flow requirements. The valve permits flow from port 1 to port 2 while restricting flow in the opposite direction, ensuring efficient operation and safety within hydraulic circuits. A key feature of the CNHEXFN is its nominal pilot ratio of 1.8:1, which allows it to close against higher pressures at port 1 when activated by sufficient pilot pressure at port 3. This characteristic is crucial for applications requiring reliable operation under varying pressure conditions. The hardened steel seats incorporated into the design offer excellent wear characteristics and contamination tolerance, enhancing the valve's durability and lifespan. The CNHEXFN uses Sun's floating style construction to minimize internal parts binding, which could result from excessive installation torque or variations in cavity/cartridge machining. This construction feature ensures consistent performance and reliability even under challenging installation conditions. Technical specifications include a T17A cavity designation, Series 3 compatibility, and a maximum capacity of 80 gpm (320 L/min). The allowable orifice range for this model spans from .016 to .252 inches (0.4 to 6.4 mm), providing considerable adaptability for different hydraulic system requirements. Installation requires a specific torque of 150-160 lbf ft (203-217 Nm), and the valve hex size is standardized at 1\u00bc inches (31.8 mm). For maintenance or replacement needs, a Viton seal kit (990017006) is recommended due to its compatibility with various hydraulic fluids and environmental conditions.
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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