Titan 155-991 Foot Valve Assembly
OEM Titan Fluid Pump Intake Component
Titan 155-991 Foot Valve Assembly is an OEM intake valve housing that prevents loss of prime and ensures proper material flow into the pump on compatible Commander, Admiral 155-559, and PowrCoat 745/960 spray systems, restoring reliable pump pickup and consistent pressure.
Compatibility Overview
Replacement foot valve assembly restores proper intake sealing, prevents loss of prime, and ensures consistent pump pickup and pressure. For related components, see the Titan Air Powered Airless Sprayer Parts collection.
Titan Fluid Pump Intake Component Replacement
Titan 155-991 Foot Valve Assembly for Commander, Admiral, and PowrCoat Systems
Titan 155-991 is an OEM foot valve assembly engineered for use on the intake side of compatible Commander, Admiral 155-559, and PowrCoat 745/960 fluid pumps. This housing contains the intake valve seat and provides the mounting point for the foot valve ball, cage, and stop. Its primary function is to prevent loss of prime by acting as a one-way check valve at the bottom of the suction path. The official Titan service manual for the 155 series pump describes the foot valve housing as the component that is unthreaded from the pump cylinder to access the internal ball and cage, and specifies that the assembly should be inspected for wear and replaced if the ball fails to seal the seat.
| Detail | Technical / Commercial Information |
|---|---|
| Product Overview | OEM Titan / Speeflo foot valve assembly used on the intake side of compatible Commander, Admiral 155-559, and PowrCoat 745/960 fluid pumps. Houses the intake valve seat and provides mounting for the foot valve ball, cage, and stop. |
| Function | Acts as a one-way check valve at the bottom of the suction path to prevent loss of prime. The foot valve ball lifts during the intake stroke to allow material to enter, then reseats to prevent backflow. The housing is unthreaded from the pump cylinder during service to access the internal ball, cage, and seat. |
| Compatible Systems | Commander 181-556; Admiral 155-559; PowrCoat 745; PowrCoat 960. Also suits Speeflo Admiral 60:1 and Wagner SuperCoat 60 air driven airless sprayers. Verify fit using the correct parts diagram for your exact model and serial number. |
| Industrial Applications | Professional sprayer repair, fluid pump rebuilding, intake valve servicing, and preventive maintenance across Commander, Admiral, and PowrCoat spray systems used in industrial finishing, protective coatings, and commercial painting. |
| Related Parts Commonly Serviced Together | 178-700 stainless ball, 174-102 ball cage, 174-113 ball stop, 891-373 O-ring, 155-932 pump cylinder, and packing sets. Inspect these components when replacing the foot valve assembly. |
| Common Problems Solved | Loss of prime, material backflow, poor pump pickup, erratic pressure, and inconsistent fluid delivery caused by a worn or damaged foot valve housing or seat. |
| Signs Replacement Is Needed | Loss of prime, ball failing to seal the seat, visible wear or damage to the housing or seat, and repeated intake valve service issues. |
| Installation & Maintenance | During reassembly, place the new ball, cage, and stop into the foot valve and thread the assembly onto the pump cylinder. The O-ring should be lubricated to protect it on replacement. It is not necessary to overtighten as the seal is obtained when parts are fully threaded together. The foot valve may be rotated back up to 1/2 turn from full engagement for convenient siphon hose positioning. |
| Commercial Benefits | Restores proper intake sealing, prevents loss of prime, ensures consistent pump pickup and pressure, and extends equipment service life. |
The 155-991 Foot Valve Assembly is a critical component on the intake side of Commander, Admiral, and PowrCoat fluid pumps. The official Titan service manual specifies that the foot valve housing is unthreaded from the pump cylinder to access the internal ball, cage, and seat, and that the assembly should be inspected for wear and replaced if the ball fails to seal. During reassembly, lubricate the O-ring and thread the foot valve onto the cylinder. Do not overtighten; the O-ring performs the sealing function without excessive force. The foot valve may be rotated back up to 1/2 turn from full engagement for convenient siphon hose positioning. For siphon hose attachment, ensure the threads fit snugly and are PTFE-taped to prevent air inlet leakage. Use genuine Titan components to ensure proper fit, correct material specifications, and reliable long-term operation. For related Titan air-powered sprayer components, see the Titan Air Powered Airless Sprayer Parts and Air Powered Airless Sprayer Parts collection.
Frequently Asked Questions
Quick contractor-focused answers for confirming fitment, function, and service value.
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