SUN HYDRAULICS
COBABDN
$49.34 USD
- SUN HYDRAULICS
- Material:COBABDN
- Model:COBA-BDN
- 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 COBABDN (COBABDN) is a spring-biased closed, pilot-to-close check cartridge with a 3:1 pilot ratio, designed to facilitate flow from port 1 to port 2 while blocking reverse flow. This valve is particularly effective in regeneration circuits, leveraging its ability to handle pressures up to 5000 psi (350 bar) and a flow capacity of 10 gpm (40 L/min). The valve features hardened steel seats which enhance wear characteristics and boost contamination tolerance, ensuring reliable performance and longevity. A notable feature of the COBABDN is that pressure at the pilot port can effectively oppose pressure at port 1 at a ratio of 3:1, meaning that a pressure of 1000 psi at the pilot port can close the valve against a pressure of 3000 psi at port 1. It\u2019s important to note that any decay or loss in pilot pressure could momentarily allow the valve to open. The valve\u2019s design incorporates Sun\u2019s floating style construction which helps minimize internal parts binding that could arise from excessive installation torque or variations in cavity/cartridge machining. The COBABDN is configured with EPDM seals suitable for systems using phosphate ester fluids; however, these seals are not compatible with petroleum-based fluids, greases, or lubricants as exposure can cause damage. For installation, the valve requires a hex size of 3/4 in (19.1 mm) and an installation torque between 20 \u2013 25 lbf\u00b7ft (27 \u2013 33 Nm). The model weighs approximately .20 lb (0.10 kg), ensuring it adds minimal weight to system assemblies. Maximum valve leakage is specified at less than one drop per minute (0.07 cc/min.), underscoring its efficiency and reliability in maintaining system integrity under varied operating conditions.
The Sun Hydraulics COBABDN (COBABDN) is a spring-biased closed, pilot-to-close check cartridge with a 3:1 pilot ratio, designed to facilitate flow from port 1 to port 2 while blocking reverse flow. This valve is particularly effective in regeneration circuits, leveraging its ability to handle pressures up to 5000 psi (350 bar) and a flow capacity of 10 gpm (40 L/min). The valve features hardened steel seats which enhance wear characteristics and boost contamination tolerance, ensuring reliable performance and longevity. A notable feature of the COBABDN is that pressure at the pilot port can effectively oppose pressure at port 1 at a ratio of 3:1, meaning that a pressure of 1000 psi at the pilot port can close the valve against a pressure of 3000 psi at port 1. It\u2019s important to note that any decay or loss in pilot pressure could momentarily allow the valve to open. The valve\u2019s design incorporates Sun\u2019s floating style construction which helps minimize internal parts binding that could arise from excessive installation torque or variations in cavity/cartridge machining. The COBABDN is configured with EPDM seals suitable for systems using phosphate ester fluids; however, these seals are not compatible with petroleum-based fluids, greases, or lubricants as exposure can cause damage. For installation, the valve requires a hex size of 3/4 in (19.1 mm) and an installation torque between 20 \u2013 25 lbf\u00b7ft (27 \u2013 33 Nm). The model weighs approximately .20 lb (0.10 kg), ensuring it adds minimal weight to system assemblies. Maximum valve leakage is specified at less than one drop per minute (0.07 cc/min.), underscoring its efficiency and reliability in maintaining system integrity under varied operating conditions.
This valve is a spring biased closed, pilot-to-close check cartridge that has a 3:1 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 3:1. This valve is most often used in regeneration circuits.
- Features hardened steel seats for excellent wear characteristics and contamination tolerance.
- Product is not available with A and B spring ranges (4 and 15 psi (0,3 and 1 bar)).
- 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.
- Nominal pilot ratio is 3:1. This means that a pressure of 1000 psi (70 bar) at the pilot port will close a valve against a pressure of 3000 psi (205 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.
- Cartridges configured with EPDM seals are for use in systems with phosphate ester fluids. Exposure to petroleum based fluids, greases and lubricants will damage the seals.
- 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-163A |
| Series | 0 |
| Capacity | 10 gpm40 L/min. |
| Pilot Ratio | 3:13:1 |
| Maximum Operating Pressure | 5000 psi350 bar |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 1 drops/min.0,07 cc/min. |
| Valve Hex Size | 3/4 in.19,1 mm |
| Valve Installation Torque | 20 - 25 lbf ft27 - 33 Nm |
| Model Weight | .20 lb0,10 kg |
| Seal kit - Cartridge | Viton: 990-163-006 |
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