GRACO 563058 - Double Ball Check Valve - 20-60 PSI Nominal Cracking Pressure, 1/4 in IP (F) x 1/4 in IP (M), Brass Body/Ball, 3000 PSI
Brass Double Ball Check Valve designed for hydraulic or lubrication systems with pressures up to 3000 PSI. Features dual conventional spring & ball type checks combined to provide maximum protection against system back flow/leakage. Compact design with positive seal to prevent leakage and back flow.
Double Ball Check Valve
100 PSI nominal cracking pressure
1/4 inch (6.4 mm) IP (F) x 1/4 inch (6.4 mm) IP (M)
brass body/ball
3,000 PSI max
Additional Specifications
- Max Working Pressure: 3000 PSI (207 bar)
- Material: All Brass with Stainless Steel Spring
- Maximum Operating Temperature: 500°F (260°C)
- Cracking Pressure: 40 +- 20 PSI (2.8 +- 1.8 bar)
- Net Weight: 171g (6 oz)
- Lubricant Compatibility: Oil and Grease
| Ball Material | Brass |
| Body Material | Brass |
| Compatible Material | Oil, Grease |
| Inlet Size (in) | 1/4 |
| Inlet Thread Gender | Female |
| Inlet Thread Type | NPT |
| Maximum Cracking Pressure (psi) | 100 |
| Maximum Working Pressure (MPa) | 20.7 |
| Maximum Working Pressure (psi) | 3000 |
| Number of Balls | Double Ball |
| Outlet Size (in) | 1/8 |
| Outlet Thread Gender | Male |
| Outlet Thread Type | NPT |
| Type | Check Valve |
Features
- Positive seal prevents leakage and back flow
- Compact and easy to install
- Dual conventional spring & ball type checks
- Maximum protection against system back flow/leakage
- Flow direction indicated by arrow stamped on check valve body
Applications
- Hydraulic systems
- Lubrication systems
- Systems with pressures up to 3000 PSI
- Inlet check valve applications
Related Parts
- 563059 - 1/4 in O.D. Tube Inlet (A), 1/4 NPT(M) Outlet (B)
Arrow on check valve body indicates proper flow direction for installation. Incoming flow moves check balls and compresses springs to allow lubricant flow, while springs re-seat the check balls to prevent back flow.
Reference Manuals
