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SUN HYDRAULICS
COJCXAV


$318.79 USD
  • SUN HYDRAULICS
  • Material:COJCXAV
  • Model:COJC-XAV
  • Summary:Cartridge

Quantity in stock: 0

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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 COJCXAV (COJCXAV) is a high-performance, pilot-to-close check cartridge valve designed for hydraulic applications requiring reliable one-way flow control. This model features a nominal pilot ratio of 1.8:1, meaning it can close against a higher outlet pressure when the appropriate pilot pressure is applied. Specifically, a pilot pressure of 1000 psi at the pilot port effectively closes the valve against an outlet pressure of 1800 psi at port 1. The valve facilitates flow from port 1 to port 2 while blocking any reverse flow from port 2 to port 1 under all conditions. The COJCXAV is engineered with Sun\u2019s floating style construction which reduces the risk of internal parts binding due to excessive installation torque or variations in cavity/cartridge machining, ensuring smooth operation and long-term reliability. The valve operates up to a maximum pressure of 5000 psi and has a maximum capacity of 160 gpm (610 L/min). It features minimal leakage, with maximum allowed leakage specified at less than one drop per minute. For installation, the valve requires a hex size of 1-5/8 inches and an installation torque between 350 and 375 lbf ft. The robust design weighs approximately 2.60 lbs and fits within the T19A cavity series specification by Sun Hydraulics. This model uses Viton seals for enhanced performance under varying operational conditions, making it suitable for demanding hydraulic applications where precise fluid control is critical.

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-19A
Series 4
Capacity 160 gpm610 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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