SUN HYDRAULICS
COKAXDN
$501.86 USD
- SUN HYDRAULICS
- Material:COKAXDN
- Model:COKA-XDN
- 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 COKAXDN (COKAXDN) is a spring-biased closed, pilot-to-close check cartridge valve with a 1.8:1 pilot ratio. Designed for efficient operation in hydraulic systems, this valve facilitates flow from port 1 to port 2 while effectively blocking any reverse flow. The specific pilot ratio indicates that a pressure of 1000 psi at the pilot port will close the valve against a pressure of 1800 psi at port 1, highlighting its capability to maintain control under varying pressure conditions. Notably, any loss or decay in pilot pressure could momentarily open the valve, emphasizing the need for consistent operational conditions. This model is engineered for use in Sun's T19A cavity at reduced capacity or optimally in the T19AU cavity to achieve its full capacity of up to 240 gpm (900 L/min). It supports a maximum operating pressure of up to 5000 psi (350 bar), and features minimal leakage with a maximum rate of about one drop per minute. The construction of the COKAXDN incorporates Sun\u2019s floating style design which minimizes internal binding due to excessive installation torque or variations in cavity/cartridge machining\u2014enhancing reliability and performance longevity. Additional design considerations include corrosion resistance for use in harsh environments, although specific models suited for such conditions are marked with suffixes AP or LH. Installation specifications require a torque between 350 \u2013 375 lbf\u00b7ft (474 \u2013 508 Nm), and the unit itself weighs approximately 2.60 lbs (1.20 kg). This model uses Viton seals for enhanced durability against fluid and temperature extremes, ensuring robust performance across various applications.
The Sun Hydraulics COKAXDN (COKAXDN) is a spring-biased closed, pilot-to-close check cartridge valve with a 1.8:1 pilot ratio. Designed for efficient operation in hydraulic systems, this valve facilitates flow from port 1 to port 2 while effectively blocking any reverse flow. The specific pilot ratio indicates that a pressure of 1000 psi at the pilot port will close the valve against a pressure of 1800 psi at port 1, highlighting its capability to maintain control under varying pressure conditions. Notably, any loss or decay in pilot pressure could momentarily open the valve, emphasizing the need for consistent operational conditions. This model is engineered for use in Sun's T19A cavity at reduced capacity or optimally in the T19AU cavity to achieve its full capacity of up to 240 gpm (900 L/min). It supports a maximum operating pressure of up to 5000 psi (350 bar), and features minimal leakage with a maximum rate of about one drop per minute. The construction of the COKAXDN incorporates Sun\u2019s floating style design which minimizes internal binding due to excessive installation torque or variations in cavity/cartridge machining\u2014enhancing reliability and performance longevity. Additional design considerations include corrosion resistance for use in harsh environments, although specific models suited for such conditions are marked with suffixes AP or LH. Installation specifications require a torque between 350 \u2013 375 lbf\u00b7ft (474 \u2013 508 Nm), and the unit itself weighs approximately 2.60 lbs (1.20 kg). This model uses Viton seals for enhanced durability against fluid and temperature extremes, ensuring robust performance across various applications.
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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