Emergency Shut-Off Valve Control Box | Rapid Pneumatic Shutdown System

A critical safety device for your vessel. Our control box uses pneumatic power to rapidly shut down fuel, lube oil, and other flammable liquid valves in an emergency. You get a fully integrated, class-certified system designed for an immediate response time of under 5 seconds.

Accreditation and Certificates:

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Overview
Our control box is the central actuator for your ship’s quick-closing valve system. It operates on a fail-safe pneumatic principle. An emergency signal, from a fire alarm or manual trigger, activates the control logic inside the cabinet. Pneumatic pressure is then instantly released from an integrated air receiver. This pressure acts on the remote valve actuators, closing all connected fuel and oil lines. Its function is to isolate flammable liquid sources, contain leaks, and prevent a fire from spreading.

 

Product Drawings:

Emergency Shut-Off Valve Control Box drawing

Technical Specifications:

Model CRD-Un-V Integrated Type Parameters
20 40 50 60 70 100 160
Air Reservoir Volume (L) 20 40 50 60 70 100 160
Medium Air
Working Pressure (MPa) 0.7
Design Pressure (MPa) 0.77
Test Pressure (MPa) 1.155 (Hydraulic Test, Water) / 0.7 (Air Tightness Test, Air)
Safety Valve Set Pressure (MPa) 0.735
Design Temperature (°C) 50
Control Air Volume (L) 3-4 3-6 3-7 4-8 5-9 6-9 6-9
Inlet Diameter (DN) 15 20
Outlet Diameter (DN) 10 15
Box Dimension (mm) L 850 1000
L1 800 950
B 410 690
B1 370 650
H 1200 1300
H1 1150 1250

Key Features:

  • Rapid Emergency Response: Valve closing time is under 5 seconds, meeting critical SOLAS and class society safety requirements.
  • Integrated Pneumatic System: Each unit includes a dedicated air receiver, control valves, and pressure monitoring gauges in a single, compact cabinet.
  • Built for Marine Environments: Components use corrosion-resistant materials like brass and stainless steel. Our system operates reliably in temperatures from -10°C to +40°C.
  • Full Compliance & Certification: Our design complies with CB/T3658-1995 standards. We provide full certification from major class societies like CCS, BV, and ABS.

Applications:

  • Tankers /Chemical Carriers: Provides emergency isolation for cargo oil and fuel tank valves to prevent spills and fire.
  • Passenger /Cargo Ships: Secures lube oil and fuel systems in the engine room, protecting the main machinery space.
  • Special Purpose Vessels: Integrates with emergency firefighting lines to quickly isolate hazardous areas.

Installation & Maintenance:

Installation: Mount the control box securely to a bulkhead or foundation. Connect the main compressed air supply and the control air lines to the remote quick-closing valves.
Maintenance: Perform daily checks of the air receiver pressure gauge. Conduct a monthly drain of any water from the air receiver. A full functional test of the valve closing mechanism is required each month.

Custom Options Available:

Need something specific?

We configure control boxes based on the number of valves you need to control, from 3 to 20 or more circuits.We can also provide systems for different pressure requirements (e.g., 3.0 MPa) and with alternative component arrangements to fit your space.

FAQ :

Q: What powers the system in an emergency?

A: It uses compressed air stored in its own integrated air receiver. It is a self-contained pneumatic system that does not depend on the ship’s main power during an emergency shutdown.

Q: How fast does it close the remote valves?

A: Valve closure is executed in less than 5 seconds after the system is triggered.

Q: What routine maintenance is required?

A: Routine checks include verifying the air pressure daily and draining any accumulated water from the air bottle monthly. A full function test is also required monthly to ensure readiness.

 

Contact Us Now

If you would like to have a question then get in touch today, we are ready to assist 24/7.

We welcome your cooperation and we will develop with you.

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