Better. Faster. Cheaper.
Service and spare parts for LNG cryogenic butterfly valves and actuators
Trusted by LNG carrier owners & managers worldwide
Send us the OEM's final quote. We'll beat it by at least 25%.
Give us the final quoted price from Klinger Westad or KSB Amri, and we guarantee to come in at least 25% lower — same quality, full compatibility, on WCS-manufactured alternatives to the OEM part. It now applies to our LPG seal line too.
The guarantee applies to WCS-manufactured products supplied as alternatives to the OEM, subject to verification of the documented OEM price.
One provider for the valve and the actuator
Global field service, 24/7/365
Anywhere your vessel docks, our engineers travel to it.
Valve & actuator overhaul
One provider handles both the valve and its actuator in the same visit — no need to coordinate two suppliers.
Work on discontinued models
Including parts the original manufacturer no longer produces — old Royal Goodwin and legacy Westad gate valves among them.
Tailored wear & tear parts
Reverse-engineered and manufactured to order — built on years of accumulated measurements and supplier relationships.
Independent by design, not by accident
One of the deepest track records in the industry
Founder Thor Bjerke has one of the longest-running careers in cryogenic valve service today, including nine years at Klinger Westad before founding WCS.
Dockings and jobs attended worldwide
That volume has built methods and routines few competitors can match — and familiarity with nearly every major LNG shipyard in the world.
Typical savings against OEM pricing
25–35% on valve spares with service, 20–40% on actuator spares — with fixed prices that don't move between docks.
We machine our own metal seals, in Norway
Unlike competitors, who outsource all seal production, WCS manufactures its own metal seals in Norway — and remains the only supplier for some discontinued valve types.
We reuse what OEMs throw away
Many components can be recovered and reused rather than scrapped — lowering both cost and environmental impact, without compromising safety or quality.
Small, flexible, and reachable 24/7
Independent of any supplier's guidelines, we adapt and reverse-engineer quickly, and can be reached any day of the year.
Hands-on experience across every major brand
Other suppliers only service their own equipment. Because WCS is fully independent, it's the only company with hands-on experience across all major LNG butterfly valve brands — Westad, KSB Amri, Velan, PK Valves, Royal Goodwin, and more.
That breadth means one call covers cross-brand technical insight most single-brand suppliers simply can't offer.
Freedom of choice
Our competitors have cornered this market for more than 40 years. There are no patents or other legal barriers preventing the production of equivalent parts, and this is where our expertice and experience comes to good use.
Wear parts are not subject to class certification and you are free to choose OEM or non-OEM aftermarket parts. Your insurance coverage remains valid regardless of supplier.
- Jan 2018Thor Bjerke founds WCS after 9 years at Klinger Westad — one person, one mission.
- Milestone no. 1WCS becomes the first company to produce spare parts for Klinger Westad valves.
- Milestone no. 2WCS becomes the first company to produce spare parts for KSB Amri valves.
- NextSoon to be entering other markets for valve seals — using the same metal-to-metal sealing technology.
Reverse-engineered, remanufactured, in stock
Like our competitors, WCS outsources soft-seal production to an established plastics specialist. Unlike them, we manufacture our own metal seals in-house in Norway — and remain the only supplier for some discontinued valve types.
Klinger Westad
Full parts and service support for Klinger Westad LNG butterfly valves and actuators — including seals for gate valves the manufacturer no longer makes.
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KSB Amri
Independent parts and service for KSB Amri LNG butterfly valves and actuators, including HQ actuator cylinders and Danais-size metal seals.
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PK Valves
WCS now supplies metal-to-metal seals for PK Valves — the newest addition to our LNG butterfly valve aftermarket range.
View details →
Royal Goodwin
The only independent supplier of seals for legacy Royal Goodwin LNG valves no longer supported by the manufacturer.
View details →
Actuators
Actuator seal kits for KSB ACTO, SEIL Seres HQ, and Danfoss BRC series actuators fitted to LNG and LPG butterfly valves — typically 20–40% below OEM pricing.
View details →
LNG Fuel Gas Supply Systems
WCS identifies and supplies Klinger Westad spare parts and service for the cryogenic valves installed inside LNG Fuel Gas Supply Systems (FGSS) — whichever integrator supplied the system.
View details →On board or in dock
Thor Bjerke founded WCS after nine years at Klinger Westad — from one person in January 2018 to four today. The team performs service on board vessels or in dock at shipyards worldwide.
Thor Bjerke
General Manager / CEOOver 18 years of experience in cryogenic valve service. Formerly with Klinger Westad.
Aleksander Bjerke
Service EngineerHolds a degree in Shipping Management.
Kristian L. Selvik
Service Engineer TraineeBuilding hands-on experience across the WCS brand range.
Kjersti Bjerke
CoordinatorHandles logistics, documentation, and internal support.
What every job is measured against
Environmental Responsibility
We prioritize sustainability by reusing components, reducing waste, and continuously improving our processes.
Focused Expertise
Decades of specialized experience in cryogenic valves, ensuring safe, precise, and reliable solutions.
Honest Pricing
Transparent and competitive pricing, with no unnecessary costs or hidden fees — built on long-term trust.
Flexibility & Speed
We respond quickly and adapt to customer needs — fast turnaround, at the heart of everything we do.
Better Quality Solutions
Carefully selected components and strict quality control — often exceeding OEM standards.
Give us the chance to quote against the OEM.
Send the final quote you've received for valve or actuator spares, and we'll tell you — in writing — how much lower we can go.