Part number 0270491 is an Outlet Ball that forms the sealing element of the outlet check valve on compatible SprayTech sprayer systems. This precision-ground ball seats against the outlet valve seat to prevent backflow and maintain system pressure.
| Part Number | 0270491 |
|---|---|
| Part Description | Outlet Ball |
| Fits | SprayTech ED1150; SprayTech AirCoat NEW |
| Condition | New |
Part number 0270491 is an Outlet Ball specifically engineered for the SprayTech ED1150 and SprayTech AirCoat NEW spray systems. The ED1150 is a professional airless pump designed for residential and commercial painting applications. The AirCoat NEW systems combine the speed of airless spraying with the fine finish quality of conventional air spray. This precision-ground ball is the sealing element of the outlet check valve assembly. During the pressure stroke, the ball lifts off its seat to allow pressurized material to flow to the spray gun. During the suction stroke, the ball seats firmly against the outlet valve seat, preventing backflow into the pump and maintaining system pressure for consistent performance.
Manufactured from wear-resistant materials with a precision-ground spherical surface, this outlet ball ensures a positive seal against the valve seat. The ball is subjected to continuous impact and pressure cycling, making it a wear item that requires periodic inspection and replacement. A worn or damaged ball will have visible flat spots, pitting, or surface irregularities that prevent proper sealing. This leads to internal leakage, pressure loss, and erratic spray performance.
The outlet ball is a critical component of the pump's fluid section. Symptoms of a worn outlet ball are identical to worn pump packings: the pump will prime successfully but will not build or maintain full operating pressure. Debris stuck between the ball and seat can also prevent proper sealing. Replacement with genuine 0270491 outlet ball restores proper check valve function, eliminates pressure loss due to backflow, and ensures reliable performance of ED1150 and AirCoat NEW spray systems. The ball should always be replaced together with the outlet valve seat for proper sealing.
| Check Valve Sealing | Seats against outlet valve seat to prevent backflow |
|---|---|
| Pressure Maintenance | Critical for building and holding operating pressure |
| One-Way Flow Control | Allows flow to gun during pressure stroke only |
| Pressure Loss | Pump primes but will not build or maintain full pressure |
|---|---|
| Visible Damage | Flat spots, pitting, or surface irregularities on ball |
| Debris Sticking | Ball fails to seat properly due to contamination |
| Valve Service | Replace during outlet valve overhaul, always with seat |
Part number 0270491 is specifically designed for the SprayTech ED1150 and SprayTech AirCoat NEW spray systems. The ED1150 is a professional airless pump for residential and commercial painting applications. The AirCoat NEW series combines airless speed with fine finish quality. Both systems utilize similar outlet check valve architecture requiring this specific outlet ball. This component is a model-specific part engineered for the dimensional requirements of these particular sprayer systems. Always confirm fitment using the correct parts diagram for your exact model and serial number.
| Compatible Models | Component |
|---|---|
| SprayTech ED1150 | Outlet Ball |
| SprayTech AirCoat NEW |
The outlet ball is one component of the outlet valve assembly. When servicing the outlet valve, these related parts should be replaced simultaneously.
The mating surface for the ball. Replace ball and seat together as a matched set.
Holds the ball in position. Inspect for wear or damage.
Inspect inlet ball and seat during outlet valve service for complete fluid section maintenance.
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