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The genuine Pumptec "Kit B" valve and seal rebuild kit for Pumptec 114T plunger pumps with U-style valves, with Viton seals. The valves open and close with every plunger stroke to move liquid through the pump. When debris fouls them, or they wear out, the pump loses prime, loses pressure, or delivers uneven flow. Viton seals hold up to pest control chemicals, herbicides and solvents better than Buna.
| Part Number | Pumptec 10020 (Kit B) |
| Includes | Valves and seals |
| Valve Type | U valves |
| Seal Material | Viton |
| Fits | Pumptec 114T plunger pumps (including Viton 114V models) |
| Kit | What It Replaces | Fits |
| 10005 | Plungers & seals (Kit A), Viton | 112T, 114T |
| 10001 | Plungers & seals (Kit A), Buna | 112T, 114T |
| 10020 (this item) | U valves & seals (Kit B), Viton | 114T |
| 10014 | U valves (Kit B), Buna | 114T |
Have an X-Series pump? The X-3 through X-6 use the 10058 valve kit instead. Not sure which pump you have? Call us at 602-371-1993 with the model number from the pump label.
How do I know the valves are bad?
Common signs are a pump that won't prime, pressure that drops or pulses, or reduced flow at the gun. Debris is the most common cause, so keep a clean strainer on the pump inlet.
Should I replace the plungers and seals too?
For a complete rebuild, yes. The 10005 Kit A replaces the plungers and seals. Together, Kit A and Kit B restore the pump's wear parts.
Does it fit the 112T?
No. This U-valve kit is for the 114T. The 112T uses a different valve kit, so call us with your pump model and we'll get you the right one.
