Verified 27 July 2026

Subsea check valves manufacturers in Norway

This page lists manufacturers that produce subsea check valves (suppliers who design and produce check valves for underwater/oil & gas use). Buyers sourcing subsea check valves should prefer manufacturers with subsea product lines, appropriate pressure/temperature ratings, and recognized subsea testing and materials capability.

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8 verified manufacturers

  • NorfloNorway

    “"All valves designed, produced and tested to the required International Codes and Standards as ANSI / ASME, API, BS, DIN, ISO, etc." (norflo.no — Check Valves)”

  • Nordic ValvesNorway

    “"This check valve is designed to ensure reliable one-way flow control in extreme underwater environments." and product/application pages for subsea valves (nordicvalves.com)”

  • TP-Products

    “"TP-Products designs and manufactures subsea ball valves, connectors, hydraulic jumpers, and check valves for reliable offshore operations." (tp-products.com — Subsea Valves & Connectors)”

  • FlowtecNorway

    “"successfully designing and manufacturing valves for operation" and a project page titled BIFOLD SUBSEA VALVES (flowtec.no)”

  • Oliver Valvetek

    “"Subsea valves from Oliver Valvetek have a variety of different solutions within: Needle valves, Ball valves, Check valves, Gate valves..." (hi-as.no — Subsea valves)”

  • HydraservNorway

    “"Subsea Components High-reliability couplers, check valves, and uni-directional vent valves. 4307 Sandnes NORWAY" (hydraserv.no — News)”

  • MVS ValveNorway

    “"Norway MVS Valve is a trusted manufacturer and exporter of high-performance Check Valves" (mvsvalves.com/norway)”

  • Vajra Industrial Solutions

    “"Vajra Industrial Solutions is a valve manufacturer supplying check valves , built to the certification typical of Aker Solutions. Subsea & EPCI sector." (vajravyuh.com)”

Compiled from public sources and refreshed periodically. Always verify certifications and capabilities directly with the manufacturer before ordering.

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What to specify in your RFQ

Manufacturers quote faster and more accurately when your request covers these points.

  • Pressure rating (e.g. API/ASME classes, psi/bar)

    Specify maximum operating and test pressures so manufacturers can size body, seat and wall thickness and select appropriate standards.

  • Material and corrosion resistance

    Specify base materials (duplex, super duplex, stainless grades, nickel alloys) and any special corrosion or sour-service requirements.

  • Temperature range

    Provide operating and ambient temperature extremes to ensure seals, elastomers and metal choices are compatible.

  • End connections and dimensions

    Give pipe sizes, face-to-face dimensions, flange type/class or threaded/union details needed for mating with existing systems.

  • Qualification and standards

    State required codes or verifications (API, NORSOK, DNV, ISO) and any factory acceptance test (FAT) or subsea qualification needs.

  • Quantity and required delivery schedule

    Include order quantity and target delivery date so manufacturers can advise lead times, tooling needs and MOQ implications.

  • Actuation / mounting and orientation

    Note whether valves are passive check, spring-assisted, or need actuator interfaces, and the intended installation orientation.

  • Inspection, testing and documentation

    Specify required documentation (material certificates, NDT reports, pressure test records) and third-party inspection if needed.

Sourcing FAQ

How do I verify a subsea check valve manufacturer?
Ask for evidence of subsea product lines, material traceability (mill certificates), relevant standards/certifications (API, NORSOK, DNV) and records of subsea testing or FAT reports.
What usually drives lead time for subsea check valves?
Lead time is driven by material procurement (special alloys), machining and testing complexity, required qualifications or third-party inspections, and current production backlog.
What minimum order quantities (MOQs) should I expect?
MOQs vary by manufacturer and valve complexity; custom subsea designs often have higher MOQs or project-based production runs—confirm MOQ and whether prototype/one-offs are possible.
Which certifications matter for subsea check valves?
Relevant items include material mill certificates, pressure-test records, and industry approvals such as API, NORSOK and DNV qualifications depending on project requirements.

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