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SUN HYDRAULICS
COHCXBV


$175.33 USD
  • SUN HYDRAULICS
  • Material:COHCXBV
  • Model:COHC-XBV
  • Summary:Cartridge

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***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 COHCXBV (COHCXBV) is a meticulously engineered pilot-to-close check cartridge valve designed for high-performance hydraulic systems. This valve facilitates unidirectional flow from port 1 to port 2 while securely blocking any reverse flow from port 2 back to port 1, ensuring operational stability and reliability in various applications. It operates with a nominal pilot ratio of 1.8:1, which means it requires a significantly lower pressure at the pilot port to close against higher pressure at port 1, enhancing its efficiency in pressure-sensitive environments. The COHCXBV is constructed using Sun's floating style design, which minimizes internal part binding\u2014a common issue caused by excessive installation torque or variations in cavity/cartridge machining. This feature significantly enhances the valve\u2019s durability and consistent performance over time. The valve boasts an impressive maximum operating pressure of 5000 psi (350 bar) and has a capacity to handle up to 80 gpm (320 L/min), making it suitable for high-flow systems. Additionally, the valve ensures minimal leakage, with a maximum rate specified at less than one drop per minute (0.07 cc/min). It is housed within a T17A cavity and falls under the Series 3 classification by Sun Hydraulics. For installation, it requires a torque between 150 -160 lbf ft (203 -217 Nm) and features a hex size of 1-1/4 inches (31.8 mm). The model's weight is relatively light at approximately 1.80 lbs (0.80 kg), facilitating easier handling and integration into system setups. This robust check cartridge is an ideal solution for systems requiring reliable check functionalities with the added benefit of pilot operation to manage flow dynamics effectively under varying pressures and operational conditions.

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 external pilot port opposes pressure at port 1 at a ratio of 1.8:1. Port 3 is blocked.

  • 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.
  • 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.
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 1/4 in.31,8 mm
Valve Installation Torque 150 - 160 lbf ft203 - 217 Nm
Model Weight 1.80 lb0,80 kg
Seal kit - Cartridge Viton: 990-017-006

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