LPG System Spare Parts Suppliers

LPG system spare parts cover the consumable, wear-component, and overhaul inventory across cargo handling equipment, containment system fittings, and fuel supply components on LPG carriers and LPG-fueled vessels. The LPG system spare parts suppliers listed on Records Marine carry OEM-authorised, OEM-equivalent, and used spare parts stock for cargo compressors, deepwell pumps, booster pumps, reliquefaction plant components, cryogenic valves, gas detection sensors, and the broader Type A and Type C containment scope under the IGC Code.

The procurement decision spans OEM authorisation (Wartsila Hamworthy, Cryostar, Burckhardt, MAN ES, Svanehoj/Alfa Laval, Frank Mohn/Framo), part availability against tight survey windows, and the certified documentation required for class society acceptance on safety-critical replacements. Used and reconditioned spare parts have their own role on older LPG tonnage where new OEM parts have long lead time or have transitioned to next-generation product lines.

What LPG System Spare Parts Cover

LPG system spare parts break across equipment categories that follow the wear and replacement cycle of the cargo handling and containment scope:

• Cargo compressor spare parts - piston rings, valve assemblies, gaskets, bearings, seals, cylinder liners, cooling water seals. Multi-stage piston compressors from Burckhardt, Sauer, Cryostar each require OEM-specific parts.
• Deepwell pump spare parts - bearings, mechanical seals, impellers, shafts, motor windings, drive coupling components. Svanehoj (Alfa Laval), Frank Mohn (Framo), and MAN ES pump ranges have distinct part catalogues.
• Reliquefaction plant spare parts - refrigerant compressor parts, heat exchanger plates and gaskets, expansion valves, control valves, refrigerant pump components.
• Cryogenic valve spare parts - cryogenic ball valve seats, globe valve trims, butterfly valve discs, actuators, packing kits.
• Tank fittings and PV valve spare parts - PV valve trims and springs, manhole gaskets, sight glass assemblies, level transmitter sensors.
• Gas detection and safety system spare parts - gas detector sensors (combustible, toxic), calibration kits, sample lines, ESD system relays.
• ME-LGIP fuel system spare parts - LPG fuel pump seals, vaporiser components, Gas Valve Unit (GVU) elements, double-wall piping gaskets for LPG-fueled vessels.

Cargo Compressor and Pump Spare Parts

The largest spend on LPG system spare parts runs through cargo compressors and deepwell pumps - the equipment that runs continuously during loading, voyage, and discharge operations:

• Cargo compressor wear parts - piston rings on multi-stage piston compressors typically replace every 12,000-20,000 operating hours; valve plates and springs at similar intervals; main bearings every 30,000-50,000 hours. Burckhardt, Sauer, and Cryostar OEM rebuild kits cover the standard service exchange.
• Compressor cylinder liner replacement - typically on 20-year overhaul; carries long lead time and high cost. OEM new vs. reconditioned cylinder liners both available.
• Deepwell pump mechanical seals - cryogenic mechanical seals on LPG service typically run 5,000-15,000 operating hours depending on duty cycle. Svanehoj, Framo, and MAN ES supply OEM seal kits.
• Deepwell pump impeller and shaft - cargo grade affects wear; some cargoes (especially LPG with corrosive content) accelerate impeller wear. Replacement runs 30,000-60,000 operating hours.
• Booster pump components - separate from deepwell pumps, booster pumps handle discharge against shore pressure. Bearings, seals, impellers all follow the standard cargo pump service cycle.

Cryogenic Valve and Tank Fitting Spare Parts

LPG cargo system valves carry significant spare parts demand:

• Cryogenic ball valves - seat replacement (PTFE, Devlon, metal) typically on 5-10 year cycle. Velan, Bestobell, Cryospec dominate the cryogenic valve OEM landscape.
• Globe valves with extended bonnet - cargo isolation valves with stem extensions to allow ambient-temperature operation while valve body runs cryogenic. Trim replacement on overhaul.
• Butterfly valves on cargo manifold - large-bore butterfly valves with cryogenic seat materials.
• PV valves (pressure/vacuum) - tank protection devices that vent overpressure or admit vacuum-breaking gas. Spring sets and trim parts replace on 5-year cycle.
• Cargo hose assemblies - flexible cargo hoses connecting manifold to shore connection. Hydrostatic testing on annual cycle; renewal on damage or end-of-life.
• Level transmitter sensors - radar and capacitance level gauges; sensor calibration and seal replacement on periodic survey.

OEM, OEM-Equivalent, and Used Spare Parts Channels

LPG system spare parts procurement runs through three distinct channels, each with cost, lead time, and class society documentation implications:

• OEM-direct channels - Wartsila Hamworthy Service, Burckhardt Compression Service, MAN PrimeServ, Cryostar Service, Svanehoj Service (Alfa Laval), Frank Mohn Service. Highest cost, longest lead time on specialty items, but full warranty and class society documentation.
• OEM-authorised distributors - regional distributors holding OEM stock and providing local logistics. Useful where the OEM service centre is geographically distant.
• OEM-equivalent spare parts - some component categories (seals, bearings, standard fasteners) have equivalent parts certified to the same material and dimensional standards. Cost savings of 30-50% common; class society acceptance subject to documentation match.
• Used and reconditioned spare parts - cylinder liners, large castings, and obsolete components sometimes only available through used parts channels. Useful on older tonnage with discontinued OEM ranges. Class society acceptance requires inspection and certification chain.

Choosing an LPG System Spare Parts Supplier

Picking among LPG system spare parts suppliers requires evaluating OEM coverage, part availability, and documentation against the vessel's actual installed equipment:

• OEM authorisation matched to installed equipment - confirm the supplier carries OEM authorisation for the actual cargo compressor (Burckhardt, Sauer, Cryostar), deepwell pump (Svanehoj, Framo, MAN ES), and reliquefaction plant brands installed on the vessel.
• Stock depth on critical-path components - cargo compressor valve plates, deepwell pump mechanical seals, cryogenic valve seats are the parts that hold up overhauls. Confirm regional stock matched to your fleet's typical replacement cycle.
• Certification and class documentation - EN 10204 3.1 material certificates on pressure-containing components, factory test certificates on assemblies, OEM traceability records on safety-critical items. Class society approval scope matched to vessel registry (DNV, ABS, Lloyd's Register, Bureau Veritas, RINA, ClassNK, KR, CCS).
• Lead time on specialty components - cylinder liners, large impellers, complete pump rotor assemblies typically 8-20 weeks. Confirm supplier holds reserved stock or has established rapid sourcing channels.
• Used and reconditioned parts capability - for older tonnage and discontinued OEM ranges, the supplier's used parts inventory and reconditioning service matter as much as new OEM access.
• Regional logistics network - critical-path repairs often need parts at a specific port within tight survey or operational windows. Supplier should have stock or rapid logistics to the ports where the vessel calls.

Buying full equipment at newbuild or replacement stage instead of parts? See LPG system suppliers for the OEM equipment scope. Need parts for LNG cryogenic systems (membrane repair materials, cryogenic pump components, ME-GI fuel system parts, BOG handling equipment) instead? See LNG system spare parts from suppliers worldwide.

Frequently Asked Questions

What are the most common LPG system spare parts needed?

The recurring high-volume LPG system spare parts are cargo compressor wear parts (piston rings, valve plates, springs, gaskets), deepwell pump mechanical seals, cryogenic valve seats and trims, and PV valve spring sets. These run on defined replacement intervals tied to operating hours and class society survey cycles. Bigger-ticket items (cylinder liners, complete impellers, motor rewinds) replace less frequently but require longer lead time for procurement planning.

Can I use OEM-equivalent spare parts on cargo handling equipment?

OEM-equivalent spare parts are accepted on many LPG cargo system components subject to material certification (EN 10204 3.1), dimensional match, and class society documentation. Standard components like bearings, mechanical seals, and fasteners commonly use OEM-equivalent parts with significant cost savings. Safety-critical components (PV valves, ESD system parts, pressure-containing castings) typically require OEM-direct sourcing to preserve class approval. Confirm with the vessel's class society before ordering equivalent parts on safety-critical scope.

What is the typical lead time on LPG cargo compressor spare parts?

Typical lead times: standard wear parts (rings, valves, gaskets) from OEM service centres run 2-6 weeks; specialty components (cylinder liners, large castings) 8-20 weeks depending on stock; reconditioned components from used parts channels 4-12 weeks subject to availability. Operators running planned maintenance against the cargo system overhaul cycle typically order major components 3-6 months ahead of scheduled service. Emergency parts at major hubs (Singapore, Houston, Rotterdam, Yokohama) can ship same-day where regional OEM stock holds the required item.

How are used LPG spare parts certified for class survey acceptance?

Used and reconditioned LPG spare parts carry their own class society acceptance requirements: inspection certificate from a qualified workshop confirming condition and dimensions match original specification; OEM traceability where serial numbers and manufacture documentation are retained; material verification (UT thickness, NDT for castings); refurbishment process documentation if reconditioning was performed. Class societies accept used parts on the basis of this documentation chain; the supplier's record-keeping discipline determines whether the parts pass the next class survey.