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Check valve from Sun Hydraulics
This valve is a spring biased closed, pilot-to-close check cartridge that has a 3:1 pilot ratio. The valve allows flow from port 1 to port 2 and blocks reverse flow. Pressure at the pilot port opposes pressure at port 1 at a ratio of 3:1. This valve is most often used in regeneration circuits.
Note: Data may vary by configuration. See CONFIGURATION section.
| Cavity | T-163A |
| Series | 0 |
| Capacity | 10 gpm |
| Capacity (metric) | 40 L/min. |
| Maximum Operating Pressure | 5000 psi |
| Maximum Operating Pressure (metric) | 350 bar |
| Pilot Ratio | 3:1 |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 1 drops/min. |
| Maximum Valve Leakage at 110 SUS (24 cSt) (metric) | 0,07 cc/min. |
| Valve Hex Size | 3/4 in. |
| Valve Hex Size (metric) | 19,1 mm |
| Valve Installation Torque | 20 – 25 lbf ft |
| Valve Installation Torque (metric) | 27 – 33 Nm |
| Model Weight | .20 lb |
| Model Weight (metric) | 0,10 kg |
| Seal kit – Cartridge | Viton: 990163006 |
Control
| B | External 1/4 BSPP Pilot Port, Port 3 blocked |
| X | Standard Pilot |
Cracking Pressure
| C | 30 psi (2 bar) |
| D | 50 psi (3,5 bar) |
| E | 75 psi (5 bar) |
| F | 100 psi (7 bar) |
Seal Material
| N | Buna-N |
| V | Viton |
| E | EPDM |
Material/Coating
| /AP | Stainless Steel, Passivated |
| /LH | Mild Steel, Zinc-Nickel |
