For 14yrs, Sammi Machinery offers a wide range of line blinds, line blind, line blind valves, blind valve, line valves, line binding and spectacle blind. It is used to obtain absolute shutoff of flow and cost saving. We are the leader in blind flange, industrial valves and marine valves.

Engineering

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Sammi line blinds does extentive physical testing to prove designs are performed using developed design software and proven by finite element analysis.

ASTM Specification

ASTM F1020 : Standard specification for Blind valve for Marine Application

ASME Specification

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

API Specification

API Spec. Q1 : Specification for Quality Program for the Petroleum and Natural Gas Industry
API 598 : Valve Inspection and Test
API 607 : Fire Test for Soft-Seated Quarter Turn Valves

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,fittings,flanges and unions
SP-55 quality standard for steel castings for valves, flanges and fittings, and other piping components (visual method)

Pressure test (ASTM F1020, API 598)

class	seat & shell
Class 150	23 ㎏/㎠ (325 psi)
Class 300	58 ㎏/㎠ (825 psi)
Class 600	116 ㎏/㎠ (1,650 psi)
Class 900	172 ㎏/㎠ (2,450 psi)
Class 1,500	288 ㎏/㎠ (4,100 psi)

Fire Safety Test (API 607)