Galley Maid SL-7 Stator — Genuine OEM Rubber Replacement for Delta Head Pump Systems
When your Galley Maid Delta Head pump starts losing pressure or struggling to move fluid the way it once did, the culprit is almost always the stator. The SL-7 Stator is the genuine OEM rubber stator designed specifically for the inlet side of Galley Maid Delta Head pump assemblies. It fits snugly over the brass rotor to form the sealed compression chambers that allow the pump to generate and sustain pressure as a positive displacement vane-type pump. Over time and with regular use, the rubber material wears, hardens, or sustains damage from dry running — and when that happens, pressure drops, flow weakens, and the pump motor works harder than it should.
Replacing the SL-7 Stator is one of the most cost-effective maintenance steps you can perform on a Galley Maid Delta Head system. Rather than replacing the entire pump assembly, installing a fresh stator restores the tight fit between the rotor and stator walls that the pump depends on for efficient fluid transfer. It should fit snugly over the rotor with no interior roughness, and a small amount of silicone grease applied to the interior surface during installation helps extend service life and prevents damage caused by momentary dry operation.
Key Features
- Genuine OEM Galley Maid replacement stator, Part No. SL-7
- Molded rubber construction engineered for a snug, pressure-sealing fit over the brass rotor
- Designed for the inlet (nose cone) side of the Galley Maid Delta Head pump
- Restores lost pump pressure and flow caused by stator wear or dry-run damage
- Compatible with the SL-7 Rotor (sold separately) for a complete pump end rebuild
- Pairs with the universal Galley Maid Seal Set for full service restoration
- Straightforward field-serviceable installation — no specialized tools required
Applications
- Galley Maid Delta Head pump systems (12V DC, 24V DC, 32V DC, 115V AC, 110V AC configurations)
- Positive displacement vane-type pump maintenance and repair
- Pump end rebuild when paired with SL-7 Rotor and Seal Set
- Any installation where the Delta Head pump has lost pressure-building capability
Specifications
- Part Number: SL-7
- Manufacturer: Galley Maid
- Material: Molded rubber elastomer
- Function: Stator — inlet side of Delta Head pump assembly
- Compatibility: Galley Maid Delta Head pump systems (all voltages); pairs with SL-7 Rotor (Part No. 40/002/00/00272)
- Manufacturer Part No.: 40/002/50/00270
- Installation Location: Nose cone / inlet end of pump housing
Frequently Asked Questions
Q: What is the function of the SL-7 Stator inside a Galley Maid Delta Head pump?
The stator is the molded rubber sleeve that fits over the brass rotor inside the pump's nose cone. As the rotor spins, the tight fit between the stator's inner surface and the rotor creates sealed compression chambers that trap and pressurize fluid. When this fit degrades, the pump loses its ability to build or hold pressure.
Q: How do I know if my SL-7 Stator needs to be replaced?
The most common sign is a pump motor that runs but fails to build adequate pressure, even when the system has been properly primed. Removing the nose cone and inspecting the stator will usually reveal internal roughness, surface cracking, or a loose fit over the rotor — all clear indicators that replacement is needed.
Q: Can dry running damage the SL-7 Stator?
Yes. Operating any vane-type pump without fluid present removes the lubrication the stator depends on. Even brief dry running can cause the rubber to degrade, develop surface irregularities, or lose its elasticity, which directly reduces the pump's pressure-building performance.
Q: Should I replace the rotor at the same time as the stator?
It is worth inspecting the brass rotor whenever the stator is replaced. If the rotor surface shows pitting, scoring, or debris from a deteriorated stator, it should be cleaned thoroughly — or replaced — before installing the new SL-7 Stator to ensure a proper seal and avoid premature wear on the new part.
Q: Is the SL-7 Stator the same part as the MR-7 Stator?
No. The SL-7 and MR-7 are distinct stator models for different Galley Maid pump configurations. The SL-7 is the stator for the Delta Head pump inlet side, while the MR-7 is a larger stator used in a different pump model. Always confirm your pump model and part number before ordering to ensure compatibility.
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