GRACO 564325 - Soft Seat Single Ball Check Valve - 50 PSI Nominal Cracking Pressure, 1/8 NPT(F) x 1/4 NPSF, SST Body/Viton Ball, 7500 PSI
Soft Seat Check Valve designed for use in hydraulic or lubrication systems with pressures up to 7500 PSI. Features a poppet and soft ball check design that improves check valve reliability. The 'single ball' version provides optimum sealing against reverse flow with lubricant flow moving the poppet and FKM ball forward, allowing lubricant to flow through the check valve. When flow stops, spring returns poppet and ball to the check position.
Single Ball Check Valve
50 PSI nominal cracking pressure
1/8-27 NPTF x 1/4-18 NPSF
steel body/ball
7,500 PSI max
Additional Specifications
- Length: 1.11 inches (28.2 mm)
- Thread: 1/8-27 NPTF x 1/4-18 NPSF
- Material: SST body, Steel spring, FKM ball
- Hex Size: 0.69 inches (17.5 mm)
- Max Temp: 400°F (204.5°C)
- Net Weight: Single Ball style
- Style: B - Single Ball
| Application | Compressor Equipment |
| Ball Material | Viton |
| Body Material | Stainless Steel |
| Compatible Material | Oil, Grease |
| Inlet Size (in) | 1/8 |
| Inlet Thread Type | NPTF |
| Maximum Cracking Pressure (psi) | 50 |
| Maximum Working Pressure (MPa) | 51.7 |
| Maximum Working Pressure (psi) | 7500 |
| Number of Balls | Single Ball |
| Outlet Size (in) | 1/4 |
| Outlet Thread Type | NPSF |
| Type | Check Valve |
Features
- Provides optimum sealing against reverse flow
- Tapered at outlet end to help identify flow direction
- Poppet and soft ball check design improves reliability
- Arrow stamped on body indicates flow direction
- Compatible with oil and grease lubricants (mineral based and synthetic)
Applications
- Hydraulic systems up to 7500 PSI
- Lubrication systems up to 7500 PSI
- Systems requiring reverse flow prevention
Related Parts
- 563046 - Single Ball Check Valve 48 PSI Nominal Cracking psi, 1/4" NPSF (F) x 1/8 in NPSF (F), SS Body/FKM Ball, 7500 PSI
- 563048 - Single Ball Check Valve - 35 PSI Nominal Cracking Pressure, 1/8 in NPSF (F) x 1/8 in NPT(F) (M), CS Body/FKM Ball, 100 PSI
- 563052 - Single Ball Check Valve 35 PSI Nominal Cracking Pressure, 7/16-20" SAE (M) x 7/16-20" SAE (F), SS/FKM, 7500 PSI
- 563061 - Double Ball Check Valve 48 PSI Nominal Cracking PSI, 1/4" NPSF (F) x 1/4" NPSF (F), SS Body/FKM Ball, 7500 PSI
Available in single and double ball versions. Wide range of pipe thread and tube size inlet/outlet fitting combinations available for variety of applications.
Reference Manuals
