NRS 1-7
GESTRA
Refurbished
The GESTRA NRS 1-7 Water Level Switch is a highly reliable boiler safety and water level monitoring device designed for marine and industrial steam boiler applications. Manufactured by GESTRA, a globally recognized leader in steam engineering and boiler protection technology, the NRS 1-7 plays a critical role in ensuring safe boiler operation through continuous water level supervision.
Maintaining the correct water level inside a boiler is one of the most important safety requirements in steam generation systems. Low water levels can cause severe overheating, tube damage, boiler failure, and potentially catastrophic accidents. The GESTRA NRS 1-7 continuously monitors boiler water levels and activates alarms or shutdown functions whenever abnormal conditions occur.
The device is widely used on merchant vessels, offshore platforms, power plants, and industrial boiler installations where reliable water level protection is essential. Its proven performance and compliance with international safety standards make it one of the most trusted boiler level monitoring solutions in the marine industry.
The GESTRA NRS 1-7 is an electronic water level switch and monitoring unit designed to work with GESTRA level electrodes and boiler safety systems. It continuously evaluates signals received from water level probes and determines whether the boiler water level remains within safe operating limits.
The controller provides reliable detection of:
Low Water Level Conditions
High Water Level Conditions
Alarm Conditions
Safety Shutdown Signals
Boiler Protection Functions
The NRS 1-7 is commonly installed in:
Marine Auxiliary Boilers
Steam Boilers
Exhaust Gas Boilers
Thermal Oil Heating Systems
Condensate Systems
Feed Water Tanks
Industrial Steam Plants
Power Generation Facilities
The unit incorporates built-in testing functions, alarm indicators, and monitoring circuits that help operators maintain safe boiler conditions while minimizing the risk of equipment damage.
SM MARINE SERVICE™ supplies both New Equipment and Reconditioned Equipment depending on customer requirements and budget.
The NRS 1-7 continuously supervises boiler water levels and provides reliable protection against dangerous operating conditions.
The controller detects unsafe low water conditions and initiates alarm or shutdown functions to prevent boiler damage.
Visual alarm indicators provide immediate notification of abnormal water level conditions.
The unit is designed for continuous operation in demanding marine and industrial environments.
Built-in testing functions help operators verify system performance and ensure proper operation.
The NRS 1-7 supports compliance with marine boiler safety requirements and classification society standards.
The controller can be integrated into boiler automation systems, alarm monitoring networks, and machinery control systems.
| Parameter | Description |
|---|---|
| Product Name | GESTRA NRS 1-7 |
| Manufacturer | GESTRA |
| Equipment Type | Water Level Switch |
| Application | Boiler Water Level Monitoring |
| Monitoring Function | Low Water Level Detection |
| Alarm Function | Alarm and Shutdown Control |
| Integration | Boiler Automation Systems |
| Installation | Marine and Industrial Boilers |
| Industry | Marine and Industrial Applications |
| Safety Function | Boiler Protection |
Note: Technical specifications may vary depending on system configuration, associated electrodes, and installation requirements.
Protects auxiliary boilers used for steam generation and ship services.
Provides reliable boiler water level monitoring and protection.
Supports cargo heating and boiler safety systems.
Ensures safe boiler operation under demanding conditions.
Monitors auxiliary steam generation equipment and safety systems.
Provides dependable boiler water level protection.
Used in marine steam systems and industrial heating applications.
Supports safe and continuous steam generation for onboard services.
Provides reliable boiler protection for specialized operations.
Protects auxiliary boiler systems and heating equipment.
SM MARINE SERVICE™ provides sourcing and supply support for GESTRA NRS 1-7 systems and associated boiler automation equipment.
Available spare parts may include:
NRS 1-7 Controllers
Level Electrodes
Monitoring Modules
Relay Units
Alarm Modules
Electronic Boards
Terminal Assemblies
Power Supply Components
Boiler Control Accessories
Replacement Parts
Both New Equipment and Reconditioned Equipment are available according to customer requirements and budget.
SM MARINE SERVICE™ provides professional repair and technical support services for GESTRA boiler level monitoring systems.
Services include:
NRS 1-7 Repair
Level Controller Calibration
Electronic Board Repair
Alarm Diagnostics
Boiler Automation Troubleshooting
Performance Testing
Relay Replacement
Control System Repair
Technical Consultation
Spare Parts Supply
Our engineers support GESTRA boiler automation systems, burner management systems, engine monitoring systems, fire alarm systems, and marine automation equipment.
Samir Market, DT Road, Pahartali, Beside CDA Market, Chattogram, Bangladesh
Shanghai, China
SM MARINE SERVICE™ supplies both New Equipment and Reconditioned Equipment depending on customer requirements and budget.
We provide worldwide supply, sourcing, repair, calibration, technical support and spare parts services for marine automation, navigation, communication and marine electronic systems.
Website : SM MARINE SERVICE™ Official Website
Email : info@smmarineservice.com
WhatsApp and Viber : +8801818929292
Marketing Contact: Nazmul Hasan Bhuiyan
Mobile WhatsApp and Viber : +8801730296909
Official GESTRA NRS 1-7 technical manuals, installation guides, operation manuals, maintenance instructions, and troubleshooting documentation are available depending on the exact system version and application.
SM MARINE SERVICE™ can assist customers in identifying the correct documentation, spare parts, replacement units, and technical support requirements based on equipment serial numbers and installation details.
The GESTRA NRS 1-7 Water Level Switch is a proven and highly reliable boiler protection device used throughout the global marine and industrial sectors. Its advanced monitoring capabilities, dependable safety functions, and integration flexibility make it an essential component of modern boiler automation and water level protection systems.
Whether you require a new GESTRA NRS 1-7, reconditioned equipment, spare parts support, repair services, calibration assistance, troubleshooting support, or technical consultation, SM MARINE SERVICE™ is ready to provide professional worldwide solutions. Contact SM MARINE SERVICE™ today for competitive pricing, reliable supply, expert repair services, and complete boiler water level monitoring system support.
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Marine Equipment Supplier