Sullair Minimum Pressure Valve Maintenance Kit 250018-456 for Air Compressors

The Minimum Pressure Valve Maintenance Kit is a comprehensive set of all critical wear components required to service and overhaul your compressor's minimum pressure valve (MPV). This all-in-one kit is engineered to restore your valve to its original performance specifications, ensuring reliable system operation, preventing costly downtime, and maintaining energy efficiency.

Routine maintenance with a genuine kit is the most cost-effective way to protect your compressor investment.

• Complete & Convenient: Contains every essential internal part needed for a full rebuild—O-rings, seals, gaskets, the piston, spring, and wear sleeves—in a single kit. Eliminates guesswork and multiple purchase orders.
• Genuine OEM Components: All parts are manufactured to exact Original Equipment Manufacturer (OEM) specifications. This guarantees perfect fit, form, and function, ensuring optimal valve performance and service life.
• Premium Material Quality: Components are made from high-performance materials specifically chosen for the compressor environment:
  • Seals & O-rings: Made from hydrogenated Nitrile (HNBR) or Viton® for excellent resistance to heat, oil, and compression set.
  • Spring: Precision-wound from high-grade spring steel to maintain the exact cracking pressure and ensure consistent valve operation.
  • Piston/Valve Plate: Machined to precise tolerances for a perfect seal and smooth operation.
• Preventative Maintenance Made Easy: Enables scheduled maintenance before a failure occurs. This prevents unplanned shutdowns, catastrophic compressor damage, and potential safety issues.
• Cost Savings: Drastically reduces maintenance costs compared to purchasing a complete new valve assembly. Extends the life of your valuable valve body.
• Performance Restoration: Replaces worn parts that can cause internal leakage (wasting energy), slow system pressure buildup, or failure to open/close properly.

A typical kit includes all the components subject to wear and tear:

• Piston or Valve Plate (the primary sealing element)
• Spring (calibrated to the correct minimum pressure setting)
• Seal Kit (all necessary O-rings, gaskets, and static seals)
• Wear Rings or Guides (to ensure proper piston alignment)
• Fasteners (locknuts or bolts, if required)
• Detailed Instruction Sheet (for step-by-step guidance)

A failing Minimum Pressure Valve can lead to:

• Energy Inefficiency: Internal leakage forces the compressor to work harder, increasing electricity costs.
• Oil Carryover: Failure to maintain minimum pressure during startup can cause oil to surge into the air system, contaminating downstream equipment.
• Slow Pressure Build-Up: A worn spring or leaking piston prevents the system from pressurizing correctly.
• Catastrophic Failure: A seized or broken valve can lead to excessive pressure drops or system failure, requiring expensive repairs.

Using this kit for preventative maintenance directly mitigates these risks.

This kit is essential for:

• Maintenance Managers & Technicians responsible for compressor reliability.
• Service Contractors performing scheduled maintenance on customer equipment.
• Plant Operators who rely on consistent, clean compressed air.
• Any facility with rotary screw compressors that require periodic MPV service (typically recommended every 8,000 to 16,000 operating hours).

• Guaranteed Compatibility: Each kit is specifically designed for your valve model and compressor brand (Atlas Copco, Ingersoll Rand, Sullair, Kaeser, etc.).
• Quality Assurance: Every component is rigorously tested to meet or exceed OEM performance standards.
• Inventory Simplification: One part number to stock for a complete valve service.
• Support: Backed by our technical team for support should you have installation questions.