Product Introduction

The Danfoss MBC 5100 Pressure Switch and Danfoss MBS 3100 Pressure Transmitter are rugged marine-grade pressure monitoring devices engineered for harsh offshore and shipboard environments. They are extensively used to monitor pressure in hydraulic, lubrication, fuel oil, compressed air, cooling water, ballast, and engine systems.

Designed for high reliability and long service life, these instruments provide accurate switching and pressure feedback for marine automation systems, helping protect critical machinery from abnormal operating conditions.

SM MARINE SERVICE™ supplies new, reconditioned, tested, and genuine Danfoss pressure instruments for vessels operating worldwide.

Manufacturer Information

Manufacturer: Danfoss A/S

Country of Origin: Denmark (MBC Series), Production in Poland/China depending on model

Products Covered:

• Danfoss MBC 5100 Pressure Switch
• Danfoss MBS 3100 Pressure Transmitter

Product Type:

• Marine Pressure Switch
• Marine Pressure Transmitter

Marine Applications:

• Engine Automation
• Hydraulic Systems
• Fuel Oil Systems
• Cooling Water Systems
• Lubrication Systems
• Compressor Systems
• Marine Process Control

Main Features

Danfoss MBC 5100

• High-precision pressure switching
• Adjustable switching point
• Compact industrial design
• Excellent vibration resistance
• IP65 environmental protection
• Marine-approved construction
• Long mechanical service life
• Reliable operation under harsh conditions

Danfoss MBS 3100

• High-accuracy pressure measurement
• Stable analog output
• Stainless steel sensing element
• Excellent long-term stability
• Compact installation
• Corrosion-resistant construction
• High shock and vibration resistance

Main Components

Pressure Switch

• Pressure sensing diaphragm
• Mechanical switching mechanism
• Adjustable pressure spring
• Electrical contact assembly
• Terminal connector
• Housing
• Pressure port

Pressure Transmitter

• Pressure sensing element
• Signal conditioning electronics
• Stainless steel pressure port
• Electrical connector
• Internal amplifier
• Protective housing

4

Marine Applications

These Danfoss devices are widely installed in:

• Main Engine Lubricating Oil Systems
• Auxiliary Engine Monitoring
• Hydraulic Power Units (HPU)
• Steering Gear Hydraulic Systems
• Fuel Oil Booster Systems
• Cooling Water Pumps
• Air Compressors
• Ballast Pumps
• Boiler Systems
• Separator Systems
• Cargo Pump Systems
• Marine Automation Panels
• Alarm & Monitoring Systems

Suitable for:

• Container Ships
• Bulk Carriers
• Tankers
• LNG & LPG Carriers
• Offshore Vessels
• Passenger Ships
• Naval Vessels
• Tug Boats

Common Problems & Troubleshooting

Maintenance Tips

• Inspect electrical connectors regularly.
• Check pressure ports for contamination.
• Verify switching pressure during scheduled maintenance.
• Calibrate transmitters periodically.
• Replace damaged seals immediately.
• Protect connectors from moisture ingress.
• Perform insulation and continuity testing.

Proper preventive maintenance ensures long service life and reliable engine protection.

Why Ships Continue Using Danfoss Pressure Instruments

Marine engineers continue choosing Danfoss because these pressure instruments provide:

• Exceptional reliability
• Accurate pressure monitoring
• Rugged marine construction
• Easy installation
• Low maintenance requirements
• Worldwide availability
• Excellent compatibility with marine automation systems

They remain one of the most trusted pressure monitoring solutions for commercial shipping and offshore industries.

Frequently Asked Questions (FAQ)

What is the difference between MBC 5100 and MBS 3100?

The MBC 5100 functions as a pressure switch that activates or deactivates electrical circuits at preset pressure levels, while the MBS 3100 continuously measures pressure and outputs an analog signal to monitoring or automation systems.

Can these products be used on marine engines?

Yes. Both are specifically designed for demanding marine and industrial applications.

Do you provide tested reconditioned units?

Yes. SM MARINE SERVICE™ supplies both new and professionally tested reconditioned units, subject to stock availability.

Do you provide worldwide delivery?

Yes. We ship globally to ship owners, ship managers, shipyards, offshore operators, and marine service companies.

Short Product Description

The Danfoss MBC 5100 Pressure Switch and Danfoss MBS 3100 Pressure Transmitter are industry-proven marine pressure monitoring devices used throughout ship automation and engine control systems. Their durability, accuracy, and reliability make them ideal for critical marine applications requiring dependable pressure protection and monitoring.

User Manual & Technical Resources

For installation, calibration, electrical wiring, pressure adjustment, diagnostics, and maintenance procedures, engineers should refer to the official Danfoss MBC 5100 Pressure Switch Technical Manual, Danfoss MBS 3100 Pressure Transmitter Installation Guide, and the applicable vessel automation documentation.

SM MARINE SERVICE™

Global Supplier of Marine Automation & Instrumentation

We Supply:

• New Marine Equipment
• Reconditioned Marine Equipment
• Genuine Marine Spare Parts
• Pressure Switches
• Pressure Transmitters
• Sensors
• Automation Components
• Repair & Calibration Services
• Worldwide Technical Support

Bangladesh Office
Samir Market, DT Road, Beside CDA Market, Pahartali, Chattogram, Bangladesh

China Warehouse & Support Center
Shanghai, China

Website: www.smmarineservice.com

Email: info@smmarineservice.com

WhatsApp: +8801818929292

Marketing Contact: Nazmul Hasan Bhuiyan

SM MARINE SERVICE™ specializes in supplying Danfoss MBC 5100 Pressure Switches, Danfoss MBS 3100 Pressure Transmitters, marine pressure sensors, pressure monitoring devices, hydraulic pressure switches, engine pressure instrumentation, automation spare parts, calibration services, repair solutions, and worldwide technical support for commercial ships, offshore vessels, and marine industries.