Commander part no. 138-031 is a gasket used to create a critical airtight seal within the air-powered pump assembly. This component prevents compressed air leaks and ensures proper pressure transfer from the air motor to the fluid section, maintaining peak sprayer performance and efficiency. Replacing a worn or damaged gasket restores reliable operation and prevents pressure loss in compatible Commander units.
| Part Number | 138-031 |
|---|---|
| Part Description | Gasket |
| Brand | Commander |
| Fits | Commander Air Powered Airless Sprayer |
| Condition | New |
The Commander 138-031 Gasket is a sealing component designed for the pump assembly of Commander air-powered airless sprayers. It creates an airtight barrier between the air motor and fluid sections, ensuring compressed air is directed correctly to drive the pump piston without leakage.
A failed or degraded gasket can cause significant pressure loss, reduced pump output, inefficient operation, and air contamination of the fluid system. Replacing this gasket during pump service or when leaks are detected restores sealing integrity and optimal sprayer performance.
| Airtight Seal | Prevents compressed air leakage between the air motor and fluid pump sections |
|---|---|
| Pressure Containment | Ensures maximum air pressure is transferred to drive the pump piston efficiently |
| Component Isolation | Keeps air and fluid sections separated to prevent contamination and maintain performance |
| Visible Air Leak | Audible hissing or air escape from the pump assembly during operation |
|---|---|
| Loss of Pressure | Sprayer cannot achieve or maintain normal operating pressure |
| Pump Disassembly | Routine maintenance or repair requiring the pump to be opened |
| Physical Damage | Cracks, brittleness, tears, or permanent compression set in the gasket material |
Commander part 138-031 is designed for Commander air-powered airless sprayer models. Always confirm fitment using the correct parts diagram for your exact model and serial number.
| Commander Model | Component |
|---|---|
| Commander Air Powered Airless Sprayer | Pump Assembly Gasket |
When servicing the pump assembly and replacing this gasket, the following parts are commonly inspected or replaced to ensure a complete repair.
Worn piston seals can cause fluid leaks and pressure loss, often addressed during the same pump service.
The air valve directs pressure to the pump; servicing it ensures efficient operation after resealing.
Inspect fluid inlet and outlet check valves for wear or contamination when the pump is open.
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