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YK Series SPST Auto-Reset Pressure Controller - 0.02-5.5MPa, Flexible Installation & Sealed Design for HVAC & Refrigeration

YK Series SPST Auto-Reset Pressure Controller - 0.02-5.5MPa, Flexible Installation & Sealed Design for HVAC & Refrigeration

Working pressure: 3~800PSI (0.02~5.5MPa); Burst pressure: 5000PSI; Ambient temperature: -30℃～+80℃; Medium temperature: -50℃～+120℃; Electrical specs: 125VA (24Vac), 375VA (120/240Vac); Dielectric strength: AC700V/S (contacts), AC2000V/S (terminals-housing); Life cycle: 30k/50k/100k cycles; Switch type: SPST (NO/NC optional).

Model:
YK Series SPST Auto-Reset
Brand:
SHINE
Code:
20221147


Availability:



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Product Description

YK Series SPST Auto-Reset Pressure Controller

A versatile pressure control solution designed for diverse industrial and commercial applications, combining reliability, flexibility, and ease of use to meet high/low pressure protection needs.

Core Features

Flexible installation with British pipe thread quick connectors or copper welding, no special fixation required.
Dual connection options (plug-in/wire) and SPST switch (NO/NC optional) adapt to various setups.
Sealed stainless steel sensor and fully enclosed switch structure ensure long-term safety.

Safety Pressure Rating Table

Maximum Working Pressure	Safety Withstand Pressure
<145PSI (1MPa)	250PSI (1.7MPa)
145PSI (1MPa)~400PSI (2.75MPa)	600PSI (4.1MPa)
>2.75MPa (>400PSI)	800PSI (5.5MPa)

Working Principle

Relies on a reversible stainless steel diaphragm. When preset pressure is detected, the diaphragm flips to drive electrical contacts (engage/disengage) via a guide rod. Automatically resets when pressure drops below the recovery value, enabling continuous protection.

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Application

Key Application Scenarios

Refrigeration & HVAC Systems

Perfect for household/commercial air conditioners, ice machines, and refrigeration units, providing precise high/low pressure protection to ensure stable operation.

Industrial & Mechanical Equipment

Suitable for air compressors, agricultural machinery, and hydraulic/pneumatic tools. Adapts to -30℃～+80℃ ambient conditions, reliably controlling pressure in industrial production and mechanical systems.