Item In Stock
A dual pilot operated check valve for use in blocking or load-holding circuits.
The DC08-40 will block flow from 1 to 2, and from 4 to 3. Flow is allowed in the opposite direction when pressure is applied to port 2 and/or port 3.
The valve has a 3:1 pilot ratio, so at least 1/3 of the load pressure at port 1 or 4 is required at the pilot lines (ports 2 or 3) to open the flow passage to allow flow from ports 1 or 4.
The check is spring-biased at 25 psi to assure holding in a static or no load condition. An optional spring biased at 135 psi is available.
Note: Orifice disc cannot be used with this product.
• Hardened seat for long life and low leakage.
• Low pressure drop.
Operating Pressure: Inlet: 240 bar (3500 psi)
Flow: Rated Inlet Flow: 19 lpm (5 gpm); see performance chart
Pilot Ratio: 3:1
Check Spring Bias: 1.7 bar (25 psi); Optional 9.3 bar (135 psi)
Leakage: 5 drops per minute (0.25 ml per minute) at 3000 psi
Temperature: –40 to 120°C with Buna N seals
Filtration: See page 9.010.1
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of 7.4 to 420 cSt (50 to 2000 sus); See Temperature and Oil Viscosity, page 9.060.1
Installation: No restrictions; See page 9.020.1
Cavity: VC08-4; See page 9.108.1
Cavity Tool: CT08-4XX-X-X; See page 8.600.1
Seal Kit: SK08-4X-MMM; See page 8.650.1
