| Part Number | Inlet Port (NPT) | Outlet Port (NPT) | Nominal Closing | Notes |
| 110257 | 3/8" | 3/8" | 70 PSI | Does not interchange with other pressure protection valves due to the special back flow feature. |
- This valve is commonly used in conjunction with the 110338 or 110376 for axles with service brake chambers only.
- Often used on converter dollies, turntables, lift axles and other axle exempt from spring brake requirements.
- Always install with vent port downward.
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