

Titan part 805-846 is an inlet valve kit used in the pump assembly of compatible RentSpray and Impact airless sprayers. This kit contains the components necessary to rebuild the inlet check valve, ensuring proper fluid intake and preventing backflow. Replacing a worn inlet valve restores priming ability, eliminates pressure loss, and improves overall sprayer performance.
| Part Number | 805-846 |
|---|---|
| Part Description | Inlet Valve Kit |
| Brand | Titan |
| Fits |
|
| Condition | New |
The Titan 805-846 Inlet Valve Kit contains all necessary components to rebuild the inlet check valve on compatible RentSpray and Impact sprayers. The inlet valve controls fluid flow into the pump cylinder during the intake stroke and seals during the pressure stroke to prevent backflow into the supply.
A worn or leaking inlet valve can cause loss of prime, difficulty building pressure, erratic spray, or complete pump failure. This kit restores proper sealing, ensures consistent fluid delivery, and eliminates issues caused by a failing check valve.
| Function | Description |
|---|---|
| Fluid intake control | Allows paint to enter the pump cylinder during suction stroke |
| Backflow prevention | Seals tightly during pressure stroke to keep fluid moving toward the gun |
| Prime retention | Maintains pump prime and prevents loss of suction |
| Symptom | Indication |
|---|---|
| Loss of prime | Sprayer won't pull fluid from the container or loses prime easily |
| Difficulty building pressure | Pump runs but pressure never reaches operating range |
| Erratic surging | Pressure fluctuates wildly during spraying |
| Backflow into supply | Fluid pulses back into the paint hopper or supply line |
Titan part 805-846 is compatible with the following models. Always verify fitment using the correct parts diagram for your exact revision.
| Brand / Model | Component |
|---|---|
| RentSpray 600 | Inlet Valve Kit |
| Impact 840 | Inlet Valve Kit |
| Impact 640 | Inlet Valve Kit |
| Impact 540 | Inlet Valve Kit |
| Impact 440 | Inlet Valve Kit |
| Impact 400 | Inlet Valve Kit |
| Impact 340 | Inlet Valve Kit |
| Impact 740 | Inlet Valve Kit |
| Impact 640 I | Inlet Valve Kit |
| Impact 640 IA | Inlet Valve Kit |
| Impact 840 I | Inlet Valve Kit |
| Impact 840 IA | Inlet Valve Kit |
| Impact X 540 | Inlet Valve Kit |
| Impact X 440 | Inlet Valve Kit |
| Impact X 410 | Inlet Valve Kit |
Inlet valve issues often involve other pump components. When rebuilding the inlet valve, these parts are commonly inspected or replaced at the same time.
The outlet valve experiences similar wear – consider rebuilding both sides for balanced performance.
Worn packings can cause pressure loss that may be mistaken for valve failure – inspect seals.
A clogged strainer or suction leak can mimic inlet valve problems – check these first.