Johnson Controls DSC16A-600R Diaphragm Kit

The Johnson Controls DSC16A-600R is a professional-grade Seat Disc & Diaphragm Kit specifically engineered for V43 Series pressure-actuated water-regulating valves. For veteran contractors maintaining large-scale refrigeration systems, this refrigerant-actuated valve repair kit provides all high-tolerance internal components required to restore factory-spec modulating operation. Designed for use in condensers with large flow capacity (typically between 100 to 1000 GPM), the DSC16A-600R ensures precise refrigerant head pressure control without the need for external electrical power. The heavy-duty rubber diaphragm in this kit eliminates friction by removing the need for sliding parts, preventing common HVACR valve sticking issues in systems utilizing R-134A, R-404A, R-507, or other non-corrosive refrigerants. Replacing these internal valve parts proactively prevents head pressure spikes and maintains optimal thermal exchange efficiency for commercial and maritime chillers. Utilize this kit to recondition the main valve seat assembly and ensure reliable throttling in high-demand environments.

• Precise Head Pressure Regulation: Restores the pilot-operated modulating function for stable condenser cooling.
• Frictionless Operation: The heavy-duty rubber diaphragm assembly eliminates mechanical sticking points typical of older sliding models.
• System Compatibility: Validated for Johnson Controls V43 Series valves used with R-134A, R-404A, and R-502 refrigerants.
• Lower Maintenance Overhead: Reconditioning the valve with a complete seat repair kit is often more cost-effective than a total valve body replacement.

What valves are compatible with the DSC16A-600R?
This kit is specifically designed for the Johnson Controls V43 Series pressure-actuated water-regulating valves used in commercial and maritime refrigeration.

Does this kit include the push rod?
No, the DSC16A-600R focuses on the seat disc and diaphragm; a separate push rod kit may be required if you notice wear on the stem during your tear-down.

Can I use this for high-pressure R-410A systems?
The V43 series handles medium-pressure refrigerants. For high-pressure R-410A applications, you typically look toward the V243 series components to match your system pressure requirements.

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.