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YK Series Single Pole Double Throw (SPDT) Auto-Reset Pressure Controller - 0.02-5.5MPa

YK Series Single Pole Double Throw (SPDT) Auto-Reset Pressure Controller - 0.02-5.5MPa

Working pressure: 3~800PSI (0.02~5.5MPa); Burst pressure: 5000PSI; Ambient temperature: -30℃~+80℃; Medium temperature: -50℃~+120℃; Electrical rating: 125VA (24Vac), 375VA (120/240Vac); Dielectric strength: AC700V/S (contacts), AC2000V/S (terminals-housing); Life cycles: 30k/50k/100k optional; Switch type: SPDT (dual-circuit auto-commutation)

Model:
YK series single pole double throw
Brand:
SHINE
Code:
20221148


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Product Description

YK Series SPDT Auto-Reset Pressure Controller

A high-performance precision pressure control solution engineered for reliability and versatility, tailored to meet the demands of refrigeration systems and industrial equipment. It integrates advanced structural design and robust materials to deliver stable, long-lasting pressure protection and commutation.

Core Advantages

SPDT switch mode enables automatic dual-circuit commutation, adapting to complex control needs.
Fusion-welded stainless steel pressure inductor and full air-tight connection ensure exceptional safety and durability.
Flexible installation via British thread quick connectors (copper flare) or brass tube welding, plus plug-in/wire connection options for diverse setups.
Factory-pre-set pressure parameters eliminate on-site adjustment, allowing immediate use upon installation.

Safety Proof Pressure Table

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

Working Principle

Built with an internal reversible stainless steel diaphragm. When the diaphragm senses preset pressure, it flips—simultaneously opening electric contact (H) and closing contact (L). As system pressure drops, the diaphragm resets instantly, disconnecting contact (L) and re-connecting contact (H) automatically, achieving seamless dual-circuit commutation without manual intervention.

Application

Key Application Scenarios

Refrigeration Systems

Ideal for household, commercial, and industrial air-conditioning refrigeration systems. Provides precise high-low pressure protection to prevent system overload or underperformance, ensuring stable cooling efficiency and extending equipment lifespan. Compatible with various refrigerants and adapts to -30℃~+80℃ ambient conditions.

Precision Pressure Control Equipment

Suitable for a wide range of precision pressure control systems, including laboratory instruments, medical equipment, and industrial process pipelines. Also serves as reliable high-low pressure protection for mechanical tools, hydraulic/pneumatic equipment, and small to medium-sized industrial machinery. Its SPDT dual-circuit design supports complex control logic, making it a versatile choice for scenarios requiring automatic pressure-driven circuit switching.