Graco 114378 Check Valve
$62.89
In Stock
The Graco 114378 Check Valve is a vital one-way flow valve ensuring correct flow direction and preventing back-flow in Graco pump and spray systems.
- OEM Graco check-valve part
- Prevents reverse flow, protects pressure integrity
- Suitable for Graco pump/spray equipment maintenance
Quantity
Genuine OEM Part
Fast Shipping (Order by 1 PM CST)
Easy Returns
Graco 114378 Check Valve: Overview
The Graco 114378 Check Valve is a genuine OEM one-way valve used in Graco fluid and pump systems to prevent back-flow and maintain correct flow direction and pressure behaviour.
Key Features
- OEM Part: Manufactured by Graco for compatibility and reliability.
- One-Way Flow Design: Ensures fluid or air moves only in the intended direction.
- Pressure Integrity: Helps maintain correct pressure in pump or spray systems by preventing reverse flow.
- Maintenance Friendly: Serves as a reliable replacement part for periodic service or failure of existing valve.
Compatible / Known Applications
While a full list of model numbers is not publicly listed by Graco, this part is used across a variety of Graco pump and spray systems. If your parts diagram lists 114378, the compatibility is confirmed.
- Graco displacement and diaphragm pump systems
- Graco air-driven ram and pump mounting systems (for priming & back-flow prevention)
- Graco industrial coating and spray application equipment where one-way check valves are required
Specification Details
| Part Number | 114378 |
|---|---|
| Item Type | Check Valve |
| Manufacturer | Graco |
| Function | One-way flow / back-flow prevention |
Installation & Maintenance
- Shut down and relieve all system pressure before removal or installation.
- Ensure mating surfaces and threads are clean and free of debris or damage.
- Use appropriate sealant or thread compound if required (as per system manual).
- Inspect the installed valve for leakage or improper flow direction during operation.
- Replace if reverse flow, leakage, or performance issues occur.
Frequently Asked Questions
The 114378 valve ensures fluid or air flows only in the intended direction, preventing back-flow that could reduce performance or damage the system.
Not necessarily. You must confirm via your machine’s parts breakdown or by contacting a Graco authorised distributor. The part must match your model and serial number.
Replace when you observe system performance degradation, leakage, or if it is listed in the maintenance schedule. Regular inspection helps prevent failures.
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