Sullair Air Compressors Kit Parts Solenoid Valve
High-precision solenoid valve designed for Sullair screw air compressors. Built with enhanced coil insulation, fast-response switching, and optimized internal passages to ensure stable control of loading, unloading, and system pressure regulation.
| Application |
Air Compressor |
|---|---|
| Material |
Stainless Steel |
The Solenoid Valve 88290016-728 is a key control component used in Sullair screw compressor systems. It manages critical pneumatic switching functions such as load/unload control, blowdown operation, and pressure signal routing.
This valve is engineered for stable duty in high-temperature, high-vibration compressor environments and offers long-term reliability with minimal maintenance.
Unlike general-purpose pneumatic solenoids, this model follows the stricter standards required for rotary screw compressors, ensuring precise air path control even under continuous operation.
Key Features & Technical Advantages
1. High-Temperature and Oil-Resistant Coil Assembly
- Coil built with Class H insulation, capable of handling prolonged temperatures up to 180°C.
- Sealed construction prevents oil mist, moisture, and dust from entering the winding.
- Stable magnetic force ensures consistent valve actuation even after thousands of cycles.
2. Fast Switching Response
- Internal plunger and orifice are optimized for minimal friction and smooth travel.
- Typical response time is short and consistent, allowing accurate control of loading/unloading timing.
- This improves compressor efficiency and reduces unnecessary idling.
3. Precision-Machined Valve Body
- Manufactured using high-grade brass or anodized aluminum, depending on the batch specifications.
- Internal channels are CNC-machined and polished for low pressure drop and reduced turbulence.
- Tight-tolerance fit between plunger and seat minimizes leakage.
4. Long-Life Sealing Components
- Equipped with high-durability seals such as Viton or NBR, selected for oil-rich compressor environments.
- Resistant to chemical degradation from lubricating oil, varnish deposits, and condensate.
- Extends valve lifespan and reduces system maintenance downtime.
5. Stable Operation Under Vibration
- Coil and core assembly use reinforced fastening design.
- Resists vibration from compressor startup and continuous operation.
- Ensures reliable switching performance over extended service periods.
Working Function in Sullair Compressors
This solenoid valve typically participates in the following functions:
- Load Control: Directs air signals to engage or disengage the inlet valve.
- Unload/Blowdown Management: Opens air channels to release system pressure during shutdown.
- Pressure Signal Switching: Coordinates with pressure regulators to stabilize system operation.
- Safety Response: Ensures accurate signal routing when abnormal pressure conditions occur.
The responsiveness and sealing quality of this valve directly affect discharge pressure stability, energy consumption, and compressor startup/shutdown behavior.
Material & Construction Details
| Component | Material | Notes |
|---|---|---|
| Valve Body | Brass / Anodized Aluminum | Corrosion-resistant, lightweight, precision-machined |
| Plunger | Stainless Steel | Smooth movement and wear resistance |
| Seal Rings | Viton / NBR | High resistance to oil & temperature |
| Coil | Class H Protective Coil | High thermal endurance, fast response |
Quality Inspection & Testing
Before shipment, each valve undergoes strict testing:
- 100% Coil Resistance & Insulation Test
- Leak-Tightness Test Under Rated Pressure
- High-Temperature Endurance Running Test
- Valve Stroke & Response Time Verification
- Thread & Port Accuracy Measurement
These inspections ensure consistent performance and compatibility with Sullair OEM standards.
OEM Compatibility
This solenoid valve is designed for Sullair compressors requiring:
- Part Number: 88290016-728
- Suitable for various Sullair screw compressor models used globally.
- Dimensions, mounting type, and electrical specifications match the OEM standard for direct replacement.
Installation & Maintenance Notes
Installation Tips
- Ensure all air passages are clean before installation.
- Confirm correct voltage supply to avoid coil overheating.
- Install in an upright or stable orientation to maintain full stroke movement.
Maintenance Recommendations
- Periodically check for contamination from oil varnish or carbon deposits.
- Clean or replace the valve if switching becomes delayed or inconsistent.
- Verify electrical terminal tightness to prevent intermittent coil power failures.
MAECENAS IACULIS
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