Danfoss KP 35 Pressure Switch for Industrial Refrigeration & HVAC Systems
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A. Product Overview
The Danfoss KP 35 is a mechanical pressure switch designed to monitor system pressure and provide reliable switching for control and safety applications in industrial refrigeration and HVAC systems. It is widely used as a pressure cut-out or control switch to protect compressors and system components from operating outside safe pressure limits.
In industrial systems, pressure imbalance or abnormal pressure rise can lead to compressor failure, seal damage, safety hazards, and unplanned downtime. The KP 35 pressure switch helps prevent such failures by enabling automatic control or shutdown based on preset pressure conditions.
It is commonly installed in compressor lines, refrigeration circuits, chillers, and utility systems where dependable pressure-based switching is required.
B. Working Principle
The KP 35 operates on a mechanical pressure-sensing mechanism. System pressure acts on an internal sensing element, which moves proportionally with pressure changes. When the pressure reaches the set value, the internal switch mechanism changes the electrical contact state.
This switching action can be used to:
Stop or start compressors
Act as a safety pressure cut-out
Trigger alarms or interlocks
Protect equipment during abnormal pressure conditions
The mechanical construction allows reliable operation even in harsh industrial and electrically noisy environments.
C. Key Applications
Compressor pressure cut-out and control
Industrial refrigeration systems
HVAC units and chillers
Cold storage and cold room installations
Process pressure safety interlocks
Utility and auxiliary equipment protection
Industries served include:
Oil & Gas | Chemical | Power | Pharma | Food & Beverage | Cold Storage | HVAC | Utilities
D. Why Industries Use This Product
Industries use the Danfoss KP 35 pressure switch to ensure safe and stable operation of pressure-dependent systems.
Key reasons include:
Protects compressors from damage due to pressure faults
Reduces unplanned downtime and maintenance interventions
Improves system reliability and equipment life
Acts as a critical safety device in pressure systems
Supports standardized and compliant industrial installations
Without a pressure switch like KP 35, systems are vulnerable to pressure-related failures, unsafe operation, and costly breakdowns.
E. Suitable Buyers
The Danfoss KP 35 is suitable for:
OEMs integrating pressure protection into equipment
EPC contractors designing refrigeration and HVAC systems
Maintenance teams replacing failed pressure switches
Plant engineering and utilities departments
Procurement teams sourcing standardized pressure control components
It is commonly used for replacement and retrofit projects where Danfoss KP-series pressure switches are specified in existing systems.
QUICK ANSWERS
What is Danfoss KP 35?
Danfoss KP 35 is a mechanical pressure switch used for pressure monitoring, control, and safety cut-out in refrigeration and HVAC systems.
Where is Danfoss KP 35 used?
It is used in compressors, chillers, cold storage systems, HVAC units, and industrial refrigeration plants.
Why is Danfoss KP 35 required in industry?
It protects compressors and systems from unsafe pressure conditions, reducing failures and downtime.
Who typically uses Danfoss KP 35?
OEMs, EPC contractors, maintenance engineers, utilities teams, and industrial procurement departments.
FAQ SECTION
1. What applications is the Danfoss KP 35 pressure switch suitable for?
The KP 35 is suitable for industrial refrigeration, HVAC systems, compressors, chillers, and cold storage installations where pressure-based control or safety cut-out is required.
2. Is Danfoss KP 35 used as a pressure safety cut-out?
Yes. KP 35 is commonly used as a pressure safety cut-out to prevent equipment operation under unsafe pressure conditions and protect compressors from damage.
3. Can KP 35 be used for replacement in existing systems?
KP 35 is widely used for replacement in installations where Danfoss KP-series pressure switches are already standardized, making it suitable for retrofit and maintenance projects.
4. Which industries typically use Danfoss KP 35?
Industries such as food & beverage, cold storage, pharmaceuticals, HVAC, utilities, chemical processing, and power generation commonly use KP 35 pressure switches.
5. Does the KP 35 require frequent maintenance?
The KP 35 is designed for long-term industrial use. When installed correctly and operated within standard conditions, it requires minimal maintenance.
6. What risks exist if a pressure switch like KP 35 is not installed?
Without a pressure switch, systems face risks such as compressor damage, unsafe pressure buildup, unplanned shutdowns, and increased maintenance costs.