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SHK-228-001 M11×1 AC Pressure Switch | R-12/R-134a 0.196-3.14MPa Universal Vehicle Fit

SHK-228-001 M11×1 AC Pressure Switch | R-12/R-134a 0.196-3.14MPa Universal Vehicle Fit

The customizable SHK-228-001 AC pressure switch features an M11×1 Male thread, dual refrigerant compatibility (R-12/R-134a), and operates at HP OFF 3.14MPa/LP OFF 0.196MPa. Designed for all vehicle models, it delivers dual over/under pressure protection, with flexible customization for thread, pressure, and refrigerant requirements.

Model:
SHK-228-001 M11×1 AC Pressure Switch
Brand:
SHINE
Code:
20221183


Availability:



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Product Description

SHK-228-001: Dual-Refrigerant & Customizable AC Pressure Switch

This SHK-228-001 is a universal AC pressure protection solution engineered for all vehicle types, bridging legacy and modern systems with dual refrigerant support and reliable pressure control.

Category	Specification
Model Number	SHK-228-001
Thread Size	M11×1 Male (Customizable)
Operating Pressure	HP OFF: 3.14MPa (Overpressure Protection)
	LP OFF: 0.196MPa (Underpressure Protection)
Refrigerant Compatibility	R-12; R-134a (Customizable)
Vehicle Fit	All Vehicle Models
Customization	Thread, Pressure Thresholds, Refrigerant

It integrates seamlessly with AC pipelines via the M11×1 Male thread, a standard fitting across various vehicle makes. The dual pressure protection mechanism is critical: triggering HP OFF at 3.14MPa to prevent compressor overheating and pipeline rupture, and LP OFF at 0.196MPa to avoid damage from refrigerant deficiency. Dual compatibility with R-12 and R-134a makes it ideal for classic car restoration, modern vehicle maintenance, and aftermarket replacement, while customization options cater to special vehicle configurations.

Superior Quality & Reliability Engineering

Quality is the cornerstone of the SHK-228-001, with design and testing adhering to strict automotive industry standards. The switch features a corrosion-resistant brass housing that withstands extreme temperatures (-40℃ to 85℃) and engine compartment vibration, ensuring long-term durability in harsh operating environments.

Its precision-calibrated pressure sensors offer a tolerance of ±0.05MPa, guaranteeing accurate response without false triggers. High-quality sealing materials compatible with both R-12 and R-134a refrigerants ensure leak-proof performance, while the durable contact design passes over 100,000 pressure cycle tests—validating reliability for the entire vehicle lifecycle.

Every unit undergoes rigorous quality inspections, including pressure threshold verification, leak testing, and temperature endurance trials. Batch production records and customization specs are fully traceable, backed by an 18-month warranty, providing peace of mind for users and business partners.

Application

The SHK-228-001 AC pressure switch applies to AC systems of all vehicle models, including passenger cars, SUVs, light trucks, buses, and classic vehicles. It is widely used in aftermarket replacement, vehicle assembly, and classic car restoration projects. By real-time monitoring R-12/R-134a refrigerant pressure, it triggers shutdown at 3.14MPa (high pressure) and 0.196MPa (low pressure) to protect compressors and pipelines. The M11×1 Male thread enables direct installation, with customizable versions adapting to special layouts and working conditions.