Engineering

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SAMMI LINE BLIND do extensive physical testing to prove designs. Designs are performed by using developed design software and proven by finite element analysis.

ASTM Standard

  • ASTM F1020 - 82 : Standard specification for Blind valve for Marine Application

ASME Standard

  • ASME Sec.II : Materials
  • ASME Sec.VIII Div. I : Rule for Construction of Pressure Vessels
  • ASME Sec.IX : Qualification Standard for Wedling and Brazing Procedures
  • ASME B15.5 : Pipe Flanges and Flanged Fittings
  • ASME B16.34 : Standard for valves - Flanges, Threaded and Welding end
  • ASME B31.1 : Power Piping
  • ASME B31.3 : Process Piping

API Standard

  • API Spec. Q1 : Specification for Quality program for the Petroleum and Natural Gas Industry API Standard
  • API Spec. 5L : Specification for Line Pipe
  • API Spec. 605 : Larger - Diameter Carbon Steel Flange
  • API 598 : Valve Inspection and Test
  • API 607 : Fire Test for Soft - Seated Quater Turn Valves.
  • API 590 : Steel Line Blanks

MSS Standard

  • SP - 6 : Finish for contact faces of pipe flanges and connecting end flanges of valves and fittings
  • SP - 25 : Marking system for valves. fitting, flanges and unions.
  • SP - 55 : Quality standard for steel castings for valves. flanges and fitting and other piping components (visual method)

Pressure Test

(ASTM F1020, API 598)

Class Seat & Shell
150 23kg/㎠ (325psi)
300 58kg/㎠ (825psi)
600 116kg/㎠ (1,650psi)
900 172kg/㎠ (2,450psi)
1500 288kg/㎠ (4,100psi)

F.E Analysis

Sliding type, NPS 20, ASME 2500Lbs, Inconel 625 valve, part coupled thermal - structural F.E Analysis ( ANSYS 17.2 )

Coupled Analysis

Atmosphere Temperature (705℃)

Stress Distribution

Overall stress distribution is the same as each other ( inside pressure 49bar )