GC Valves KS201AF02N5CG4 Repair Kit

The GC Valves KS201AF02N5CG4 Repair Kit is a critical maintenance solution for S201 series solenoid valves, specifically optimized for normally closed (N.C.) configurations. Built for 3/8-inch brass solenoid valve bodies, this kit provides a complete set of internal components to restore the zero differential pilot operation essential in fluid and gas control systems. As a veteran technician knows, maintaining the integrity of synthetic seating materials is vital for preventing downstream leakage and ensuring a positive shutoff under varying pressure loads.

This kit includes a high-grade Buna-N diaphragm assembly, which offers excellent resilience in standard water and oil applications. It also features a replacement seat disc and essential O-rings to refresh the internal seals between the valve bonnet and body. By utilizing this original equipment manufacturer (OEM) kit, you ensure the plunger and spring dynamics remain within the original 10-watt coil specifications, preventing the common issue of sluggish operation or coil burnout caused by mechanical friction inside the plunger tube.

Key Benefits

• System Restoration: Replaces worn Buna-N diaphragm and seat discs to eliminate internal bypass and external leaks.
• Zero Differential Performance: Specifically designed to maintain the piloted operation of S20 series valves without requiring a pressure drop.
• High Compatibility: Direct fit for S201 series AC valves ending in N5CG4 or N5DG4, ensuring seamless mechanical integration.
• Material Integrity: Features durable elastomerics that withstand standard operating temperatures for water, oils, and neutral gases.

Common Questions

Which valve models does this kit support? This repair kit is engineered for the GC Valves S201 series, specifically those with N5CG4 and N5DG4 suffixes. Verify your catalog number on the valve nameplate before installation.

What is included in the KS201AF02N5CG4 package? The kit contains the primary diaphragm assembly, a seat disc, and the necessary O-rings for a standard field repair. For a total rebuild involving the plunger tube and springs, consider a full rebuild kit.

Can I install this kit without removing the valve from the line? Yes, the S201 series is designed so that the internal components can be serviced by removing the retaining nut and bonnet bolts, leaving the brass body in the piping.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.