OceanSphereENGINES
Library› Cargo› Gas Carrier Cargo Systems› Cargo Compressor (Screw)› Vilter (Emerson) VSG Screw
Vilter (Emerson)

VSG Screw

Cargo Compressor (Screw) · Gas Carrier Cargo Systems

Technical data from manufacturer or class sources · not yet verified by a person​​​​‌‍‌‌‍‌‌‌​‌⁠⁠‌‌‍‌
variableCapacity
LNG / LPG / Gas CargoMedium

This equipment is commonly found on liquefied natural gas (LNG) and liquefied petroleum gas (LPG) carriers, where it plays a crucial role in the efficient handling and transfer of gas cargo. Designed as a single-screw compressor with variable capacity, the Vilter VSG Screw is part of Emerson's product line. Its single-screw design ensures reliable operation under demanding conditions. However, like any mechanical system, it can encounter common issues such as star-rotor wear, bearing failure, shaft seal leaks, and capacity control malfunctions. To address these potential issues, spare parts are available directly from Vilter (Emerson), though lead times can range from 3 to 8 weeks. It is recommended to keep critical spare parts, including seals and valve inserts, on board to minimize downtime during maintenance or repairs.

Specifications

Technical data.

Do you have the manufacturer datasheet for this model? Send it with the enquiry form — we check it and name the source.

TypeSingle Screw
Service

Service notes.

What our service work and the manufacturer documentation say about keeping this model running.

Single-screw design. Emerson product line.

Inspection

Common failures & inspection points

Spares

Replacement Parts

Spare parts notes

Vilter (Emerson): Spare parts through the manufacturer. Lead time: 3-8 weeks. Keep seals and valve inserts on board.

Need this part?

Request a quote for this model.

Free of charge — send us your request for Vilter (Emerson) equipment. Our team checks it and replies by e-mail.

For marine equipment hardly any maker or authorised dealer will name a price while the vessel is unknown. With the vessel details, availability and price can be settled faster; without them we may have to ask first, which costs a few days. If you are not allowed to name the vessel, a photo of the rating plate is enough — attach it below or send it as a reply to our confirmation e-mail.

Your contact details are not published. No account required.
Related models

Also in Cargo Compressor (Screw).

Other models of the same equipment type.

By manufacturer Aerzener MaschinenfabrikWärtsiläMycom (Mayekawa)Vilter (Emerson)All manufacturersSpare parts by equipmentNew here? Create a free account Can't read the plate? Try the nameplate scanner More like Vilter VSG Screw
More than the data sheet shows

We answer by e-mail, never with an automatic reply.

Tell us what you need for this Vilter (Emerson) VSG Screw — a part, a service call, a second opinion. Are you Vilter (Emerson)? Claim this brand page.

Service engineer? Write the day report for this VSG Screw in OceanSphere Work — photos, hours and parts, as a PDF for the owner. Try it free for 14 days →

Frequently asked

Questions that come up with this equipment.

Is this model's data free?

Yes. Specifications, documents and service notes for this model are readable without an account. An account adds saved searches and requests, nothing is taken away.

Can you find a part for this exact model?

Yes. Tell us the manufacturer, the model and what you need — a person reads every request and replies by e-mail.

The specifications look wrong — what now?

Send us the nameplate or the correct value. We check it against the manufacturer datasheet or class-society record and update the page.