SUN HYDRAULICS
CNDEXDN
- SUN HYDRAULICS
- Material:CNDEXDN
- Model:CNDE-XDN
- Summary:Cartridge
Due to extremely high demand, please call 888-905-7411 for availability
***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 CNDEXDN (CNDEXDN) is a high-performance spring-biased closed, pilot-to-close check cartridge valve designed for hydraulic systems requiring reliable, directional flow control. This valve allows fluid to flow from port 1 to port 2 while restricting flow in the reverse direction from port 2 to port 1. It features a unique pilot ratio of 1.8:1, meaning that a pressure of 1000 psi at the pilot port will close the valve against a pressure of 1800 psi at port 1. The valve's operation can be influenced by changes in pilot pressure, with any decay potentially allowing the valve to open temporarily. Constructed with hardened steel seats, the CNDEXDN offers excellent wear characteristics and tolerance to contamination, ensuring long service life and reliability under harsh conditions. Its design includes a customer-specified bypass orifice diameter, allowing customization according to specific system requirements within an allowable range of .016 to .107 inches (0.4 to 2.7 mm). The valve incorporates Sun Hydraulics' floating style construction which minimizes internal part binding due to excessive installation torque or variations in cavity/cartridge machining. This feature enhances overall performance stability and operational reliability. Technical specifications for the CNDEXDN include a maximum operating pressure of 5000 psi (350 bar) and a flow capacity up to 20 gpm (80 L/min). It is designed for use in T11A series cavities and requires an installation torque between 30 and 35 lbf ft (41 - 47 Nm). For maintenance or replacement needs, Viton seal kits are available under part number: 990011006. This valve is ideally suited for applications where precise hydraulic flow control is essential and where system integrity must be maintained even under variable pressure conditions.
The Sun Hydraulics CNDEXDN (CNDEXDN) is a high-performance spring-biased closed, pilot-to-close check cartridge valve designed for hydraulic systems requiring reliable, directional flow control. This valve allows fluid to flow from port 1 to port 2 while restricting flow in the reverse direction from port 2 to port 1. It features a unique pilot ratio of 1.8:1, meaning that a pressure of 1000 psi at the pilot port will close the valve against a pressure of 1800 psi at port 1. The valve's operation can be influenced by changes in pilot pressure, with any decay potentially allowing the valve to open temporarily. Constructed with hardened steel seats, the CNDEXDN offers excellent wear characteristics and tolerance to contamination, ensuring long service life and reliability under harsh conditions. Its design includes a customer-specified bypass orifice diameter, allowing customization according to specific system requirements within an allowable range of .016 to .107 inches (0.4 to 2.7 mm). The valve incorporates Sun Hydraulics' floating style construction which minimizes internal part binding due to excessive installation torque or variations in cavity/cartridge machining. This feature enhances overall performance stability and operational reliability. Technical specifications for the CNDEXDN include a maximum operating pressure of 5000 psi (350 bar) and a flow capacity up to 20 gpm (80 L/min). It is designed for use in T11A series cavities and requires an installation torque between 30 and 35 lbf ft (41 - 47 Nm). For maintenance or replacement needs, Viton seal kits are available under part number: 990011006. This valve is ideally suited for applications where precise hydraulic flow control is essential and where system integrity must be maintained even under variable pressure 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-11A |
| Series | 1 |
| Capacity | 20 gpm80 L/min. |
| Pilot Ratio | 1.8:11.8:1 |
| Maximum Operating Pressure | 5000 psi350 bar |
| Orifice Range | .016 - .107 in.0,4 - 2,7 mm |
| Valve Hex Size | 7/8 in.22,2 mm |
| Valve Installation Torque | 30 - 35 lbf ft41 - 47 Nm |
| Seal kit - Cartridge | Viton: 990-011-006 |
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