GAS CARRIER SURVEY IN SPAIN

TYPES OF GAS CARRIERS WE SURVEY

Depending on the required scope and vessel configuration, survey attendance may be considered for:

LNG CARRIERS

Liquefied Natural Gas carriers incorporating specialised cargo containment, cryogenic piping and cargo-handling arrangements.

LPG CARRIERS

Liquefied Petroleum Gas carriers using pressurised, refrigerated or combined containment arrangements depending on vessel design.

ETHYLENE AND OTHER GAS CARRIERS

Other suitable liquefied-gas carriers may be considered, depending on vessel type, access conditions, and the requested technical scope.

GAS CARRIER MARINE SURVEY SERVICES

Depending on the purpose of the appointment, VALENCIA Marine Services may provide:

SHIP CONDITION SURVEY

Independent assessment of the apparent condition of accessible hull structures, decks, machinery, cargo-system areas and relevant equipment.

SHIP CONDITION SURVEY

PRE-PURCHASE SHIP SURVEY

Technical inspection for prospective purchasers requiring an independent assessment before acquiring a gas carrier.

PRE-PURCHASE SHIP SURVEY

ON-HIRE / OFF-HIRE SURVEY

Independent documentation of vessel condition at charter delivery or redelivery, including bunker quantities where included within the appointment.

ON-HIRE / OFF-HIRE SURVEY

MARINE DAMAGE SURVEY

Independent inspection following collision, grounding, berth contact, machinery failure, structural damage or reported damage affecting cargo-related systems.

MARINE DAMAGE SURVEY

SHIP INSPECTION

Targeted technical inspection of a specific structure, machinery item, piping system, equipment defect or repair.

SHIP INSPECTION

BUNKER SURVEY

Independent measurement and calculation of bunker quantities and Remaining On Board.

BUNKER SURVEY

PSC PREPARATION & POST-DETENTION SUPPORT

Pre-PSC technical inspections, deficiency review, corrective-work follow-up and preparation for official Port State Control reinspection.

PSC PREPARATION & POST-DETENTION SUPPORT

GAS CARRIER STRUCTURAL INSPECTION

Depending on accessibility and agreed scope, structural inspection may include:

• shell plating;

• weather decks;

• longitudinal structures;

• transverse structures;

• bulkheads;

• frames;

• stiffeners;

• brackets;

• cargo tank supporting structures;

• ballast spaces;

• pipe supports;

• machinery foundations;

• visible welds;

• previous repair areas.

The surveyor may document visible:

• corrosion;

• coating breakdown;

• deformation;

• cracking;

• buckling;

• mechanical damage;

• structural deterioration;

• previous repairs;

• areas requiring additional investigation.

CARGO DECK INSPECTION

Cargo decks on gas carriers contain specialised piping and cargo-handling arrangements.

Depending on vessel configuration and scope, accessible areas may include:

• cargo piping;

• manifolds;

• valves;

• pipe supports;

• expansion arrangements;

• cargo machinery areas;

• venting arrangements;

• deck structures;

• access routes;

• visible safety-related equipment.

Observed deficiencies may include:

• corrosion;

• leakage;

• damaged supports;

• coating deterioration;

• mechanical damage;

• abnormal visible condition;

• temporary repairs.

CARGO MANIFOLDS

Where included within the agreed scope, manifold areas may be inspected for the visible condition of:

• piping;

• flanges;

• valves;

• supports;

• reducers;

• drip arrangements;

• surrounding deck structures;

• insulation condition where externally visible.

Pressure testing and statutory verification are not automatically included.

CARGO PIPING SYSTEMS

Accessible cargo piping may be visually reviewed for:

• external corrosion;

• coating condition;

• insulation condition;

• visible leakage;

• damaged supports;

• flange condition;

• mechanical damage;

• abnormal external condition.

Detailed system testing must be defined separately.

CARGO CONTAINMENT AREAS

Gas carriers can use different cargo containment concepts depending on vessel design.

Where accessible and appropriate to the assignment, inspection may address visible condition associated with:

• cargo tank external areas;

• tank supporting structures;

• insulation arrangements;

• surrounding structures;

• access spaces;

• visible leakage indications;

• previous repairs.

The survey scope should always reflect the actual containment system installed on the vessel.

CARGO TANK INSPECTION

Internal gas cargo tank inspection is a specialist activity and should be included only where specifically instructed and safe-entry conditions exist.

Where properly arranged, an inspection may consider the following:

• tank structure;

• coating or material condition where applicable;

• internal piping;

• tank supports;

• access arrangements;

• visible damage;

• previous repairs.

Tank entry remains subject to strict vessel procedures, atmosphere testing, isolation, ventilation, access control and appropriate authorisation.

INSULATION AND CRYOGENIC SYSTEM AREAS

For vessels carrying refrigerated gases, visible aspects of insulated and low-temperature systems may form part of a technical inspection.

Observations may include:

• external insulation condition;

• damaged cladding;

• condensation or icing where abnormal;

• pipe-support condition;

• visible leakage indications;

• mechanical damage.

Specialist cryogenic testing or certification is outside a normal visual marine survey unless specifically included.

BALLAST TANKS AND INTERNAL SPACES

Where properly arranged and safe to enter, selected ballast spaces may be inspected for:

• coating condition;

• corrosion;

• pitting;

• structural wastage;

• frames;

• stiffeners;

• brackets;

• bulkheads;

• welds;

• deformation;

• cracking;

• previous repairs.

Confined-space inspections remain subject to appropriate safe-entry procedures.

GAS CARRIER DAMAGE SURVEY

Gas carriers may require independent damage inspection following:

• collision;

• grounding;

• berth contact;

• tug contact;

• heavy weather;

• structural damage;

• piping damage;

• machinery failure;

• cargo-system incidents;

• equipment impact.

The survey may document:

• damage location;

• extent;

• dimensions;

• deformation;

• cracking;

• affected structures;

• affected piping or equipment;

• photographs;

• measurements;

• repair progress;

• further investigation required.

MARINE DAMAGE SURVEY

PRE-PURCHASE GAS CARRIER SURVEY

A prospective purchaser may require a broader independent technical assessment covering accessible:

• hull structure;

• weather decks;

• cargo-system areas;

• manifolds;

• piping;

• machinery;

• propulsion;

• ballast spaces;

• visible containment-system related areas;

• deck equipment;

• previous repairs;

• available technical documentation.

Specialist cargo-system inspections may be recommended where required.

PRE-PURCHASE SHIP SURVEY

PORT STATE CONTROL PREPARATION

Independent technical preparation may be provided before an official Port State Control inspection or following recorded deficiencies.

The survey may focus on:

• vessel condition;

• machinery spaces;

• deck areas;

• structural deficiencies;

• accessible cargo-system deficiencies;

• previous PSC findings;

• corrective-work status;

• preparation for official reinspection.

PSC PREPARATION & POST-DETENTION SUPPORT

SAFETY AND ACCESS REQUIREMENTS

Gas carriers require particularly careful control of survey access.

Attendance may depend on:

• vessel cargo status;

• terminal restrictions;

• hazardous-area controls;

• atmosphere testing;

• gas-free certification where applicable;

• enclosed-space procedures;

• isolation arrangements;

• permits to work;

• required PPE;

• vessel authorisation;

• terminal authorisation.

No cargo tank, enclosed space or hazardous system inspection should be assumed unless suitable arrangements have been formally established.

GAS CARRIER SURVEY PROCEDURE

1. VESSEL INFORMATION

Provide vessel name, IMO number, gas-carrier type, port and required survey.

2. SCOPE DEFINITION

Establish the technical objectives, systems, and areas requiring inspection.

3. SAFETY AND ACCESS REVIEW

The surveyor identifies operational status and relevant access restrictions before attendance.

4. DOCUMENT REVIEW

Relevant technical drawings, records and reports may be reviewed where included.

5. VESSEL ATTENDANCE

The surveyor attends the vessel at the agreed Spanish port, terminal, anchorage or shipyard.

6. TECHNICAL INSPECTION

The surveyor examines accessible areas included in the appointment.

7. PHOTOGRAPHIC DOCUMENTATION

Relevant findings are documented photographically where permitted.

8. TECHNICAL ASSESSMENT

Observations are assessed from a Naval Architecture and Marine Engineering perspective.

9. REPORTING

A professional technical report is prepared where included within the appointment.

GAS CARRIER SURVEY REPORT

Depending on the survey type, the report may include:

• vessel identification;

• IMO number;

• gas carrier type;

• year of build;

• survey location;

• inspection date;

• appointing party;

• purpose of survey;

• inspection scope;

• access and safety limitations;

• documentation reviewed;

• structural observations;

• cargo-deck observations;

• piping observations;

• machinery findings;

• photographs;

• measurements;

• identified defects;

• technical findings;

• recommendations where appropriate;

• further investigation required;

• survey limitations.

ADDITIONAL TECHNICAL INVESTIGATION

Where required, additional work may include:

• ultrasonic thickness measurements;

• non-destructive testing;

• specialist cargo-system inspection;

• leak testing;

• specialist insulation assessment;

• machinery testing;

• underwater inspection;

• laboratory analysis;

• Classification Society involvement.

Such services are only included where specifically agreed.

INDEPENDENT GAS CARRIER SURVEY VS STATUTORY INSPECTION

VALENCIA Marine Services provides independent technical marine surveys.

These services do not replace surveys, certification or approvals required from:

• Classification Societies;

• Flag State administrations;

• Port State Control authorities;

• terminal authorities;

• authorised cargo-system specialists;

• other competent organisations.

GAS CARRIER SURVEYS AT SPANISH PORTS

VALENCIA Marine Services provides gas carrier survey attendance at suitable Spanish commercial ports and terminals.

Regular geographic coverage includes:

Valencia • Sagunto • Castellón • Alicante • Cartagena • Tarragona • Barcelona • Algeciras

Actual attendance remains subject to terminal access, vessel status, safety requirements, requested scope and surveyor availability.

WHY APPOINT VALENCIA MARINE SERVICES?

GAS-CARRIER-SPECIFIC APPROACH

The survey scope is adapted to the vessel's cargo system, structure, machinery and operating condition.

NAVAL ARCHITECTURE & MARINE ENGINEERING

Structural and machinery observations are evaluated from an engineering perspective.

INDEPENDENT TECHNICAL ASSESSMENT

Findings are based on accessible conditions and technical evidence available during attendance.

SAFETY-FOCUSED SURVEY SCOPE

Hazardous-area, terminal and confined-space limitations are explicitly considered.

PHOTOGRAPHIC DOCUMENTATION

Relevant observations are supported by photographs where permitted and practicable.

PROFESSIONAL REPORTING

Reports distinguish clearly between observed facts, evidence, technical findings and limitations.

EXPERIENCED MARINE SURVEYOR

Carlos Montamarta is a Naval Architect & Marine Engineer with more than 20 years of professional experience in marine surveying and ship inspection.

His assignments combine practical commercial-vessel inspection experience with technical expertise in ship structures, marine machinery, marine engineering, damage assessment and technical reporting.

Professional marine surveying services are provided through VALENCIA Marine Services SLU.

INDEPENDENT • DISCREET • PROFESSIONAL

FREQUENTLY ASKED QUESTIONS

WHAT IS A GAS CARRIER SURVEY?

A gas carrier survey is an independent technical inspection of a gas carrier or selected vessel areas according to an agreed scope.

WHAT TYPES OF GAS CARRIERS CAN BE SURVEYED?

Suitable LNG, LPG and other liquefied-gas carriers may be considered depending on the requested scope and vessel safety/access conditions.

CAN YOU INSPECT LNG CARRIERS?

Independent technical surveys can be considered for LNG carriers according to the defined scope, vessel access and operational restrictions.

CAN YOU INSPECT GAS-CARGO PIPING?

Accessible cargo piping, manifolds, supports and associated deck structures may be visually inspected within the agreed scope.

CAN YOU INSPECT LPG CARRIERS?

Yes, subject to the agreed inspection scope and applicable safety conditions.

CAN CARGO TANKS BE INSPECTED?

Only where specifically included and where appropriate isolation, atmosphere testing, safe-entry arrangements and vessel authorisation have been established.

DO YOU PERFORM PRE-PURCHASE GAS CARRIER SURVEYS?

Yes. A pre-purchase survey can be adapted to gas carriers, with specialist inspections recommended where appropriate.

CAN YOU INSPECT DAMAGE TO A GAS CARRIER?

Yes. Structural, machinery or accessible cargo-system damage may be documented through a Marine Damage Survey.

DOES THE SURVEY REPLACE CLASS OR STATUTORY INSPECTIONS?

No. Independent surveying does not replace Classification Society, Flag State, PSC or other statutory requirements.

CAN YOU ATTEND AT SHORT NOTICE?

Urgent attendance can be considered subject to port or terminal access, vessel operational condition, safety restrictions and surveyor availability.

REQUEST A GAS CARRIER SURVEY IN SPAIN

Please provide:

• vessel name;

• IMO number;

• gas carrier type;

• LNG / LPG / other;

• year of build;

• current or expected port;

• terminal where known;

• ETA;

• required attendance date;

• current cargo / operational status;

• type of survey;

• systems or areas requiring inspection;

• reported defect or damage where applicable;

• photographs where available;

• relevant documentation;

• specific client instructions.

Urgent attendance requests are welcome, subject to surveyor availability.

NEED A MARINE SURVEYOR IN SPAIN?

Independent marine surveying services for shipowners, operators, charterers, insurers and maritime stakeholders throughout Spain.

© 2026 VALENCIA Marine Services SLU · VAT No. ESB06827356 │ Mercantile Registry of Valencia: Volume 11011, Sheet 122, │ Section GNE, Entry 198596

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VALENCIA Marine Services SLU

Independent marine surveying, vessel inspection, maritime auditing and technical consultancy services for commercial vessels in Spain.

INDEPENDENT • DISCREET • PROFESSIONAL

Bulk Carriers
Container Ships
General Cargo Ships
Tankers
Gas Carriers
Passenger Ships
Ferries, Ro-Pax & Ro-Ro Vessels
Multipurpose & Heavy-Lift Vessels
Offshore, Tugs, Workboats & Dredgers

Marine Survey Services
Ship Condition Survey
Pre-Purchase Ship Survey
On-Hire / Off-Hire Survey
Marine Damage Survey
Ship Inspection
Cargo Hold Inspection
Bunker Survey
Draft Survey
PSC Preparation & Support
Flag State Inspections
ISM, ISPS & MLC 2006 Audits

Marine survey attendance in Spanish ports and shipyards.

Real Club Náutico de Valencia - Camino del Canal 91 - Bloque 3 Local 21 - Valenciac 46024, Spain

Office +34 96 13 050 13

Mobile/WhatsAp: +34 644 70 90 38

Base : Port of Valencia, Spain

Urgent attendance requests are welcome, subject to surveyor availability.

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