Industries & Applications

By utilizing our spring manufacturing technology that we have nurtured over the years,


we have solved a whole host of spring-related issues in various fields.

Valves

Other Places You Will Find Tokai Springs

Safety valves and valves used in the following:
• Thermal power generation, substations, nuclear power plants
• Steel industry, paper manufacturing industry, chemical engineering industry
• Oil & petrochemical complex
• Machine manufacturing, shipbuilding, tankers

Water supply control valve
Ball valve

  • Ideal for these clients
    Ideal for these clients
    Perfect for clients who:

    • Need consistent quality
    • Need to know the working temperature limit for each material
    • Need assistance in managing thrust
    • Require springs with both heat and corrosion resistance
    • Need material lists sorted by material
      Need further testing on pre-existing springs to determine their service life and efficacy

  • Why our springs are great for power generation and power plants
    Why our springs are great for power generation and power plants
    1. We can supply stable springs with little variation.
    2. We can give you an answer straight away from our proven track record and technical data.
    3. Enable measuring with a thrust tester.
    4. We can give you an answer straight away from a wealth of technical data.
    5. We offer an accurate and speedy response.
  • Features of Tokai Spring’s springs for power generation and power stations
    Features of Tokai Spring’s springs for power generation and power stations
    Our coil springs for nuclear safety valves exhibit highly accurate spring performance. We also improve reliability through spring inspections that keep the valves functioning for many years to come. For springs used in heat-resistant and corrosion-resistant environments, we propose the optimum spring for you based on our wealth of experience and accumulation of technical data.

Examples of Our Pursuit of Perfection

● Coil springs for safety valves
  • • A smooth rise from the end coil part to the active coil part. Our devotion to excellent spring performance adds a ‘functional beauty’ to simple springs.

  • • It is possible to have perfect spring performance in consideration of radial load in addition to thrust load performance in order to maximize the control performance of the valve ejection pressure.
  • • Increased valve capacity and size reduction. To meet these conflicting requirements, we use stronger, tougher and high quality Cr-V steel Cr-V steel as the spring material for large capacity valves.
  • • Given that the spring plays an important role, it is only natural that the spring’s high-level performance should last forever. This led to the birth of our Spring Inspection System. This system has been made possible because we are able to completely save the history of springs we have manufactured.

● Coil springs for nuclear safety valves
  • • We have further improved the reliability of the safety valve coil springs while maintaining their highly accurate spring performance.
  • • We carefully select materials from only the finest available. This pursuit of perfection is the reason why our springs are used for nuclear safety valve applications that require a high level of quality.
  • • We conduct numerous checks of the manufacturing process, the product, and the checks themselves. This may seem like a waste of work hours at first glance, but this work is essential to ensure safety. What’s more, our history of manufactured springs is, in principle, stored forever. That’s why you can use our springs with confidence.

● Heat resistant coil springs for valves
  • • This is a spring that is exposed to harsh conditions by the valve fluid. Especially for springs used under high-temperature conditions, we are able to propose the optimum spring for you based on our wealth of experience and accumulation of technical data.

  • • What’s more is that we stock a wide variety of materials to suit different temperature environments. This is also one of our strengths at Tokai Spring.

Examples of springs used in power generation and power stations

Product Name Spring Type Material
Nuclear pressure vessels

Disc Springs SUP10
SKD61
Nuclear propulsion systems Disc Springs SUP10
Nuclear fuel transportation containers Compression Springs
Disc Springs
SUS304
INCONEL X750
Gas turbines Compression Springs
Springs with metal fittings
SUP10
SWP-A
INCONEL718
Steam turbines (motors)

Compression Springs
Springs with metal fittings
Disc Springs
SUS304
INCONEL718
SUP10
SUP6
SWP-A
SUS304-WPB
Ball valves

Compression Springs
Torsion Springs
SUP10
SWOSC-V
INCONEL X750
Control valves

Compression Springs
Disc Springs
Conical Springs
SUP10
SUS304
SUS316
INCONEL X750
Limitorque (valve actuators)

Compression Springs
Disc Springs
Flat Springs
SUP10
SK85
  • Request a Design Further Inquiries
  • Our Oder-To-Deliverly Process
  • supporting meterials
  • Tokai Spring's Forum