La serie THRS EEBD

Overview

In a marine emergency — a fire, a toxic gas release, a flooding engine room — the window for safe evacuation is short and shrinks fast. Smoke, combustion gases, and oxygen-depleted air can make a passage that was clear minutes earlier impassable without breathing protection. An Emergency Escape Breathing Device is the piece of equipment that bridges that gap: a self-contained compressed air supply that gives a crew member the protected breathing time to move from wherever they are to the nearest exit and reach fresh air. It is not designed for extended firefighting or damage control — it is designed for one specific purpose, escape, and it needs to do that reliably, immediately, and without requiring training beyond the basics of donning the device.

The THRS Series EEBD (models THRS15 and THRS15-B) from RongGui is a self-contained compressed air breathing protection device designed and manufactured to the requirements of current international standards for emergency escape breathing equipment. It provides a constant flow air supply for a minimum of 15 minutes — sufficient time to evacuate a vessel’s lower decks, machinery spaces, or enclosed accommodation areas under emergency conditions — from a 3-litre alloy steel cylinder charged to 210 bar working pressure with an air storage capacity of at least 630 litres.

The specific differentiator that matters for marine procurement is the dual CCS and MED approval. CCS (China Classification Society) certification covers the Chinese regulatory requirement; MED (Marine Equipment Directive) is the EU’s marine equipment approval standard that allows the product to be placed on vessels flying EU flag states. A device that carries both certifications is deployable across a broader range of vessel flags and operational territories than a device with only a single national or regional approval — reducing the procurement complexity for fleet operators with vessels under multiple flags.

Key Features

15+ Minute Constant Flow Air Supply

The THRS EEBD provides a continuous, constant flow air supply for a minimum of 15 minutes from a 3-litre cylinder at 210 bar working pressure. The 15-minute minimum duration is the standard required by SOLAS (the International Convention for the Safety of Life at Sea) for EEBDs carried on passenger ships and specified by many flag states for merchant vessels — representing the amount of time deemed sufficient for a crew member to escape from any part of the vessel to a safe assembly point or lifeboat station under emergency conditions. The constant flow design ensures the air supply is maintained at a consistent rate throughout the 15-minute period rather than degrading as cylinder pressure drops.

3-Litre Alloy Steel Cylinder at 210 Bar (21 MPa)

The THRS EEBD uses a 3-litre alloy steel pressure cylinder charged to a working pressure of 210 bar (21 MPa), providing an air storage capacity of at least 630 litres. Alloy steel construction provides the structural integrity required for a high-pressure compressed air cylinder used in a safety-critical application, while keeping the assembly weight below 9 kg — the specification weight of the complete device. At less than 9 kg, the THRS EEBD can be donned, carried, and operated by a typical crew member under emergency conditions without the device itself creating a physical impediment to evacuation.

Low Pressure Alarm — Warning Before Air Runs Out

The THRS EEBD includes a low pressure alarm that activates at or below 0.6 MPa (87 psi) cylinder pressure — providing an audible warning to the user that the remaining air supply is limited and that they need to reach clean air immediately. Without a low pressure warning, a user in smoke or toxic atmosphere has no indication of how much air remains until the supply stops — at which point they may be without breathing protection in a compromised atmosphere with no warning time. The low pressure alarm provides the early warning signal that allows the user to redirect toward an exit before the air supply is exhausted.

Medium Pressure Regulator — Consistent Delivery Pressure

The THRS EEBD incorporates a medium pressure regulator that delivers air at a consistent output pressure of 0.6–0.9 MPa to the demand valve or constant flow mask assembly, regardless of the cylinder pressure. This regulated delivery pressure maintains consistent airflow performance throughout the full duration of use — from the moment of first activation at full cylinder pressure through to the low pressure alarm threshold — rather than delivering a declining flow rate as cylinder pressure drops. Consistent airflow is directly relevant to user comfort and mask seal integrity during an emergency evacuation.

Gas Supply Flow Rate ≥ 35 L/min

The THRS EEBD delivers a minimum gas supply flow rate of 35 litres per minute. This flow rate exceeds the typical minute ventilation volume of a person under moderate physical exertion — ensuring the breathing supply is adequate for the respiratory demands of a crew member moving through a vessel under emergency conditions rather than resting. An insufficient flow rate can cause CO2 build-up inside the breathing assembly even when compressed air is still available, creating hypercapnia risk independent of the cylinder’s remaining air volume.

Yellow Colour — High Visibility Emergency Equipment

The THRS EEBD is supplied in yellow — the internationally recognised colour for emergency and safety equipment. Yellow colouring maximises visibility of the EEBD in its storage location, allowing crew members to locate the device quickly in low-light or smoke conditions, and maintains the visibility convention for emergency equipment that vessel crew expect from their safety training. In the seconds that matter during an emergency, equipment that is visually conspicuous in its storage position reduces the time to locate and retrieve it.

Compact Packing — 2 Units Per Carton

The THRS EEBD is packed two units per carton for supply, supporting the SOLAS and ISM Code requirements for vessels to carry EEBDs in quantities that provide coverage for all crew members in the machinery spaces and other designated areas. The two-per-carton packing facilitates procurement in pairs for storage point installation, and simplifies storage and handling logistics for vessels and safety equipment stores managing multiple units.

Technical Specifications

Model: THRS15 / THRS15-B

Brand: RongGui

Type: Emergency Escape Breathing Device (EEBD) — for escape only

Continuous Use Time: >15 minutes

Air Cylinder Volume: 3 litres

Cylinder Material: Alloy steel

Working Pressure: 210 bar (21 MPa)

Air Storage Capacity: ≥630 litres

Gas Supply Flow Rate: ≥35 L/min

Medium Pressure Output: 0.6–0.9 MPa

Low Pressure Alarm Threshold: ≤0.6 MPa

Weight: <9 kg (complete assembly)

Colour: Yellow

IMPA Code: 33 04 38

Approvals: CCS (China Classification Society), MED (Marine Equipment Directive)

Place of Origin: Zhejiang, China

Packing: 2 units per carton

Usage: For escape only — not intended for firefighting or extended work in contaminated atmospheres

Display: Not applicable

Battery Life: Not applicable

IP Rating: Not specified

Wireless Connectivity: Not applicable

Data Logging: Not applicable

Benefits

For vessel Masters and safety officers, a CCS and MED approved EEBD that meets the current SOLAS standard for escape duration satisfies the regulatory requirement for EEBD provision on covered vessel types without creating flag state or port state compliance concerns. The dual approval covers the two most commercially significant certification frameworks for vessels operating between Chinese and European ports and flag states — a fleet operating under multiple flags can standardise on the THRS EEBD without maintaining separate approved devices for different flag state requirements.

For HSE officers and safety equipment managers specifying EEBD provision for engine rooms, machinery spaces, and other enclosed areas on vessels and offshore installations, the THRS EEBD’s weight below 9 kg and constant flow design address the two practical usability concerns that matter most for emergency escape equipment: that the device can be carried and operated by any crew member without difficulty, and that the air supply performs reliably throughout its rated duration rather than delivering a declining flow rate that may be inadequate for the last minutes of use.

For procurement teams managing safety equipment supply for vessel fleets or offshore facilities, the IMPA code (33 04 38) enables straightforward ordering through the marine supply chain without requiring custom specification. The two-per-carton packing simplifies quantity ordering for vessels required to carry multiple EEBDs at designated storage points throughout the vessel.

Who It’s For

Marine Safety Officer — Cargo Vessel or Passenger Ship

You’re responsible for maintaining the vessel’s safety equipment inventory in compliance with SOLAS, the vessel’s flag state requirements, and the ISM Code. EEBDs are required equipment on vessels of a defined size and type, and they require periodic inspection and replacement when service life limits are reached. The THRS EEBD’s CCS and MED approvals satisfy the certification requirements your vessel’s flag state inspector will check, and the IMPA code streamlines the procurement process through your usual marine supply channels.

Offshore Platform HSE Manager — Production or Drilling Installation

You manage emergency breathing equipment provision for an offshore installation where muster stations, lifeboat stations, and evacuation routes pass through areas where toxic or oxygen-depleted atmospheres can develop during emergency scenarios. EEBDs positioned at designated locations throughout the installation give crew members the breathing protection to reach muster points and evacuation stations safely during fire, toxic gas release, or H2S emergency scenarios. The THRS EEBD’s 15-minute plus duration and constant flow supply provide the performance margin required for your installation’s emergency evacuation routes.

Ship Chandler or Marine Safety Equipment Supplier

You supply safety equipment to vessels calling at your port, with a requirement to stock CCS and MED approved EEBDs to meet the procurement needs of vessels under Chinese and EU flag states. The THRS EEBD’s dual approval, IMPA code availability, and two-per-carton packing make it a straightforward stock item for your marine safety equipment range, with a specification that covers the majority of vessel EEBD procurement requirements without needing to maintain separate approved products for different flag state requirements.

Possible Applications

Engine Room and Machinery Space EEBD Provision — SOLAS Compliance — SOLAS Chapter II-2 Regulation 13 requires EEBDs to be provided in machinery spaces of vessels above a defined gross tonnage. The THRS EEBD’s 15-minute duration meets the SOLAS minimum duration requirement for machinery space EEBDs, and its CCS and MED approvals satisfy the approval requirements applicable to most vessel flag states.

Cargo Vessel Crew Emergency Evacuation Equipment — Crew members on cargo vessels navigating enclosed or semi-enclosed cargo areas, engine rooms, and machinery spaces during emergencies require EEBD access to escape smoke and toxic gases. EEBDs at designated storage points throughout the vessel provide the first-line respiratory protection for unplanned emergency evacuation scenarios.

Passenger Ship Emergency Escape Equipment — Passenger ships are required under SOLAS to provide EEBDs for crew in specific areas and in quantities sufficient to provide coverage for all crew on duty in designated areas. The THRS EEBD’s lightweight construction and ease of use are particularly relevant for passenger ship crew who may need to assist passengers during evacuation while wearing breathing protection.

Offshore Oil and Gas Platform Emergency Escape — Offshore production platforms, drilling rigs, and FPSOs carry toxic gas and fire risks that require EEBD provision at muster stations and along evacuation routes. The THRS EEBD’s 15-minute duration provides adequate protected evacuation time for the route distances typically involved in offshore platform evacuation to lifeboat embarkation stations.

Chemical Tanker and Hazardous Cargo Vessel Operations — Chemical tankers and vessels carrying hazardous cargoes face additional toxic atmosphere risks from cargo vapour release or tanker cleaning operations. EEBD provision in areas adjacent to cargo handling zones provides crew protection during unexpected toxic atmosphere emergencies on these vessel types.

Naval and Government Vessel Safety Equipment — Naval vessels and government service vessels with enclosed machinery spaces and combat system spaces require EEBD provision for crew escape from fire and smoke in these areas. The THRS EEBD’s CCS approval covers Chinese naval and government vessel procurement requirements.

Industrial Confined Space Emergency Escape — Onshore Applications — While the THRS EEBD is designed and approved primarily for marine use, the principle of EEBD provision for escape from confined spaces and enclosed industrial areas applies in onshore industrial settings. Confirm applicable approval requirements for onshore industrial use in your jurisdiction before specifying the THRS EEBD for non-marine applications.

Trust & Certifications

CCS Approval — China Classification Society

CCS (China Classification Society) is China’s national ship classification organisation, recognised by the Chinese government for type approval of marine safety equipment. CCS approval is required for safety equipment fitted on vessels registered under the Chinese flag and for equipment supplied through Chinese maritime authorities. For vessels calling at Chinese ports or operating under Chinese flag, CCS-approved EEBDs satisfy the flag state requirement for certified emergency escape breathing equipment without additional approval documentation.

MED Approval — Marine Equipment Directive (EU)

MED (Marine Equipment Directive 2014/90/EU) is the European Union framework for type approval of safety equipment fitted on ships flying the flag of an EU member state. MED approval — marked with the wheel mark — is required for safety equipment installed on EU-flagged vessels, and is accepted by the maritime authorities of all EU member states. A MED-approved EEBD can be fitted on vessels under any EU flag without requiring separate national approval from individual EU flag states. For fleet operators with vessels under EU flags, MED approval is the certification that confirms regulatory compliance for EEBD provision across the entire EU-flagged portion of the fleet.

SOLAS Compliance — 15-Minute Duration Requirement

SOLAS (the International Convention for the Safety of Life at Sea) establishes the minimum requirements for emergency escape breathing equipment on applicable vessel types, including minimum air duration of 15 minutes. The THRS EEBD’s rated duration of greater than 15 minutes meets this SOLAS baseline requirement. Vessels subject to SOLAS EEBD requirements can specify the THRS EEBD with confidence that its duration meets the applicable convention standard.

IMPA Code 33 04 38 — Marine Supply Chain Identification

The IMPA (International Marine Purchasing Association) code 33 04 38 identifies the THRS EEBD within the global marine supply chain catalogue. IMPA codes are used universally by ship chandlers, marine equipment suppliers, and vessel purchasing departments to identify and order standard marine safety equipment. The IMPA code enables straightforward ordering through established marine supply channels without requiring custom specification documentation for each procurement.

RongGui — Established Chinese Marine Safety Equipment Manufacturer

RongGui is a Zhejiang-based manufacturer of marine safety equipment with CCS and MED approved products including EEBDs and related breathing protection equipment. CCS and MED approvals require independent type testing and ongoing production surveillance from the classification society — manufacturers maintaining these approvals have demonstrated their production processes meet the standards required for certified marine safety equipment supply.

Accessories & Variants

THRS15 — Standard Configuration

The standard THRS EEBD model with 3-litre alloy steel cylinder, constant flow air supply, and low pressure alarm. IMPA code 33 04 38.

THRS15-B — B Variant

The THRS15-B is a variant of the standard THRS15. Contact our team to confirm the specific configuration differences between the THRS15 and THRS15-B and which variant is appropriate for your vessel’s or installation’s specific EEBD storage and mounting requirements.

EEBD Storage Bracket / Mounting Hardware

EEBDs are required to be stored in designated, marked locations throughout the vessel that are accessible to crew under emergency conditions. Wall-mounted storage brackets appropriate for the THRS EEBD housing allow compliant installation at designated EEBD storage points in machinery spaces, accommodation areas, and other required locations. Confirm mounting hardware compatibility with the supplier.

EEBD Inspection and Service

EEBDs require periodic inspection and service in accordance with the manufacturer’s instructions and the applicable class society or flag state requirements for safety equipment maintenance. Cylinder hydrostatic testing, regulator service, and mask and hood inspection are typically required at defined intervals. Confirm the applicable service intervals and requirements for the THRS EEBD with your vessel’s classification society and the supplier.

Request a Quote or Procurement Consultation

If you’re sourcing CCS and MED approved EEBDs for vessel compliance, offshore installation emergency escape provision, or safety equipment stock replenishment, the THRS EEBD is available for enquiry, quotation, and supply through our marine safety equipment team.

Speak with our team to confirm the correct model variant for your application, discuss quantity requirements and carton packing for vessel or fleet supply, request documentation for flag state compliance purposes, or obtain a formal quotation for procurement. We work with vessel safety officers, offshore platform HSE managers, ship chandlers, and marine safety equipment procurement teams across merchant, offshore, and government vessel applications.