SYMBOL
DESCRIPTION
The E-CVCV is a pilot to open check valve. It has a sealed pilot, a steel seat, and is vented.
OPERATION
The E-CVCV allows free flow from the valve (port 2) to the load (port 1) and blocks flow in the opposite direction. Pressure at the pilot (port 3) will open the valve from port 1 to port 2. Pilot pressure needed to open the valve is directly proportional to the load pressure at port 1. The valve is insensitive to pressure at port 2 because the spring chamber is referenced to the vent (port 4).
FEATURES
* Pilot pressure as low as 75 psi (5 bar) higher than the pressure at the vent can prevent the valve from closing.
* Will accept pressure at port 4 (vent) but can not exceed 5000 psi (350 bar).
* Approximately 1 drop (0.07 ml) of fluid will pass from the pilot area to the vented spring chamber every 4000 cycles.
* Pilot-to-open check cartridges are locking valves, not motion control valves.
SPECIFICATIONS:
Operating Pressure: 350 bar (5000 psi)
Capacity: 60 L/min (15 gpm)
Pilot Ratio: 3:1
Maximum Valve Leakage at 110 SUS (24 cSt): 0.07 cc/min (1 drops/min.)
Temperature: - 40°C ~ +120 °C
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of 7.4 to 420 cSt (50 to 2000 sus)
Cavity: T-21A
| Capacity | Model | Cavity | Installation Torque |
| 60 L/min | E-CVCV-XCN | T-21A | 41 - 47 Nm |
| 120 L/min | E-CVEV-XCN | T-22A | 61 - 68 Nm |
| 240 L/min | E-CVGV-XCN | T-23A | 203 - 217 Nm |
| 480 L/min | E-CVIV-XCN | T-24A | 474 - 508 Nm |
PERFORMANCE:
DIMENSIONS & ORDER CODE:
AAK Hydraulic Valve is a top manufacturer for Hydraulic Cartridge Check Valves in Ningbo China since 2009.
We guarantee quality for 3 years for non-standard customized valves: No leakage, No Noise, No Vibration.
Contact us to customize your valves and promote your business with our premium quality!
