SUN HYDRAULICS
COBABFN
$49.34 USD
- SUN HYDRAULICS
- Material:COBABFN
- Model:COBA-BFN
- 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 COBABFN (COBABFN) is a spring-biased closed, pilot-to-close check cartridge valve with a nominal pilot ratio of 3:1. It facilitates fluid flow from port 1 to port 2 while blocking reverse flow from port 2 to port 1, ensuring that any reverse flow is not possible under any conditions. The valve features hardened steel seats which enhance wear characteristics and provide high contamination tolerance. Designed primarily for use in regeneration circuits, the COBABFN operates effectively by opposing pressure at the pilot port with pressure at port 1 at a ratio of 3:1. For instance, a pressure of 1000 psi at the pilot port can close the valve against a pressure of up to 3000 psi at port 1. The valve's performance can be affected by any decay or loss in pilot pressure, potentially causing the valve to open momentarily. This model incorporates Sun's floating style construction which minimizes internal parts binding due to excessive installation torque or variations in cavity/cartridge machining. It has a maximum operating pressure of up to 5000 psi and a capacity of up to 10 gpm/40 L/min. Leakage specifications indicate maximum valve leakage at 110 SUS (24 cSt) is approximately one drop per minute. For systems utilizing phosphate ester fluids, cartridges configured with EPDM seals are recommended; however, exposure to petroleum-based fluids can damage these seals. The model also specifies an installation torque range between 20 and 25 lbf ft and comes with Viton seal options for different applications. Weighing only about .20 lbs, this compact yet robust component ensures reliability and precision in hydraulic systems where high-pressure control and non-reverse fluid flow are critical.
The Sun Hydraulics COBABFN (COBABFN) is a spring-biased closed, pilot-to-close check cartridge valve with a nominal pilot ratio of 3:1. It facilitates fluid flow from port 1 to port 2 while blocking reverse flow from port 2 to port 1, ensuring that any reverse flow is not possible under any conditions. The valve features hardened steel seats which enhance wear characteristics and provide high contamination tolerance. Designed primarily for use in regeneration circuits, the COBABFN operates effectively by opposing pressure at the pilot port with pressure at port 1 at a ratio of 3:1. For instance, a pressure of 1000 psi at the pilot port can close the valve against a pressure of up to 3000 psi at port 1. The valve's performance can be affected by any decay or loss in pilot pressure, potentially causing the valve to open momentarily. This model incorporates Sun's floating style construction which minimizes internal parts binding due to excessive installation torque or variations in cavity/cartridge machining. It has a maximum operating pressure of up to 5000 psi and a capacity of up to 10 gpm/40 L/min. Leakage specifications indicate maximum valve leakage at 110 SUS (24 cSt) is approximately one drop per minute. For systems utilizing phosphate ester fluids, cartridges configured with EPDM seals are recommended; however, exposure to petroleum-based fluids can damage these seals. The model also specifies an installation torque range between 20 and 25 lbf ft and comes with Viton seal options for different applications. Weighing only about .20 lbs, this compact yet robust component ensures reliability and precision in hydraulic systems where high-pressure control and non-reverse fluid flow are critical.
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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