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SHK-201 3/8-24UNF AC Pressure Switch | R-12/R-134a 0.2-2.65MPa for All Vehicles

The customizable SHK-201 AC pressure switch features 3/8-24UNF male thread, dual refrigerant compatibility (R-12/R-134a), and operates at HP OFF 2.65MPa/LP OFF 0.2MPa. Designed for all vehicle models, it protects AC systems from over/under pressure, with flexible customization for specific needs.

  • SHK-201 3/8-24UNF AC Pressure Switch

  • SHINE

  • 20221177

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Product Description

SHK-201: Customizable Dual-Refrigerant AC Pressure Switch for Universal Vehicle Fit

The SHK-201 is a versatile air conditioning pressure switch (with customizable specs) engineered for universal compatibility across all vehicle models, focusing on comprehensive AC system protection:
Category Item Specification
Thread Size Connection Type 3/8-24UNF Male (Customizable)
Operating Pressure HP OFF Pressure 2.65MPa (Overpressure Protection)

LP OFF Pressure 0.2MPa (Underpressure Protection)
Compatibility Refrigerant Type R-12; R-134a
Application Vehicle Fit All Vehicle Models
In automotive AC systems, it acts as a dual-protection safeguard—triggering HP OFF at 2.65MPa to prevent overpressure damage to compressors and LP OFF at 0.2MPa to avoid underpressure malfunctions. The 3/8-24UNF male thread (with customization options) ensures seamless installation on standard AC pipelines of passenger cars, SUVs, commercial vehicles, and trucks.
Dual compatibility with R-12 and R-134a refrigerants makes it suitable for both legacy and modern AC systems, enhancing its versatility as a replacement part. Its robust construction withstands extreme temperature fluctuations (-40~85℃) and engine vibration, while customizable parameters (e.g., thread size, pressure thresholds) cater to specialized vehicle setups.

SHK-201: Industrial-Grade Quality & Customizable Reliability

The SHK-201 adheres to strict automotive component standards, balancing quality with customization flexibility:

  • Pressure Control Precision: Calibrated to HP OFF 2.65MPa/LP OFF 0.2MPa (±0.05MPa tolerance) for accurate dual protection, with customizable pressure settings available.

  • Durable & Customizable Construction: High-quality brass housing (corrosion-resistant) with 3/8-24UNF thread (or custom thread options) meets industrial sealing standards for leak-proof performance.

  • Dual Refrigerant Compatibility: R-12/R-134a-specific seal materials ensure chemical stability, with compatibility for other refrigerants via customization.

  • Rigorous Testing: Undergoes 500,000 cycle pressure tests, temperature endurance trials, and automotive-grade vibration resistance testing—customized units receive model-specific validation.

  • Traceability & Warranty: 18-month warranty; batch records and customization specs are fully traceable, meeting global automotive aftermarket requirements.


Application

The customizable SHK-201 AC pressure switch applies to all vehicle models (passenger cars, SUVs, commercial vehicles, trucks) for AC system protection. It monitors R-12/R-134a refrigerant pressure, triggering HP OFF at 2.65MPa and LP OFF at 0.2MPa, with 3/8-24UNF (or custom) male thread for universal/specialized installation.

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