Local content valve (TKDN)

Custom-engineered valves tailored for specific applications include:

• Double Piston Effect
• Double Block & Bleed
• Actuated Valve
• Welded or Bolted Body
• Metal to Metal or Soft Seated
• All types of end connections: BW, SW, NPT and Flanges

Cryogenic Testing Process

Cryogenic testing is essential for valves operating in temperatures down to -196°C, ensuring tight sealing, operational integrity, and material stability. Each valve is submerged, actuated, and monitored to simulate actual service conditions. All results are recorded digitally and validated by trained engineers.

Mechanical Testing Capabilities

In addition to cryogenic validation, Ohtori conducts material and pressure testing to ensure structural integrity and compliance.

• Pressure Testing
  Hydrostatic & Pneumatic Tests Verifies body strength and sealing integrity Follows API 598, ASME B16.34 standards
• Tensile Testing
  Determines yield strength, tensile strength, and elongation Conducted per ASTM A370
• Hardness Testing
  Confirms surface strength and heat treatment consistency
  Methods include Brinell and Rockwell
• Impact Testing
  Assesses toughness and resistance to fracture at low temperatures
  Crucial for materials used in cryogenic or arctic applications
  Conducted per ASTM E23, often at -46°C or -196°C