SHK Series: Universal & Customizable AC Pressure Switch for All Vehicles
This SHK series AC pressure switch is engineered as a versatile solution for all vehicle types, from passenger cars to commercial vehicles, focusing on reliable AC system protection and customization flexibility.
| Category | Specification |
| Thread Size | 3/8-24UNF Male (Customizable) |
| Operating Pressure | HP OFF: 3.14MPa (Overpressure Protection) |
| LP OFF: 0.196MPa (Underpressure Protection) |
| Refrigerant Compatibility | R-134a (Customizable for Other Types) |
| Vehicle Fit | All Vehicle Models |
| Customization | Thread, Pressure Thresholds, Refrigerant, Terminals |
It integrates seamlessly with standard AC pipelines via the 3/8-24UNF Male thread, eliminating the need for adapters. 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. Customization options cater to special vehicle configurations, making it suitable for aftermarket replacement, OEM matching, and modification projects.
Superior Quality & Reliability Engineering
Quality is at the core of the SHK series, with rigorous design and testing to meet 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 environments.
Its precision-calibrated pressure sensors offer a tolerance of ±0.05MPa, guaranteeing accurate response without false triggers. High-quality sealing materials compatible with R-134a ensure leak-proof performance, while the durable contact design passes over 100,000 pressure cycle tests—validating its reliability for the entire vehicle lifecycle.
Every unit undergoes strict 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 confidence for both users and partners.
