ST – FIGURE 8 SPECTACLE BLINDS

MRTJ | FRTJ

Figure-8 Spectacle Blinds

Figure-8 spectacle blinds are used to assist with the isolation of sections of pipework from flowing or pressurized mediums, to enable safe maintenance.

Figure-8 spectacle blinds are of a dual disc construction with a tab joining the blind and spacer rings. When the spacer disc is installed, the blind disc is exposed above the pipe line showing that the spacer is in use. The disc periphery is etched with the part number and identification details.

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Features

  • FACING TYPE: Flat Face ‘FF’, Raised Face ‘RF’, Ring Type Joint Male ‘MRJ’ or Female ‘FRJ’ (Serrated spiral machined face in compliance with ASME B16.5 on RF facing only, smooth gasket face on FF type)
  • Size, ANSI Class, Material, Heat Number, and Part number etched on the periphery of the disc
  • ID and OD are flame cut and de-burred
  • MATERIALS: Carbon Steel, Stainless Steel 304 & 316, Duplex, Super Duplex, Monel, Inconel
  • SIZES: 0.5” to 24” – other sizes available upon request
  • ANSI CLASS: 150-2500 ANSI
  • Manufactured in accordance with ASME B16.48, ASME B16.5 & ASME B16.2
  • OPTIONS: Painted or special coatings (i.e. Stellite), please state with inquiry
ORDERING INFORMATIONPart number format for ordering is as follows; SIZE-ANSI-TYPE-BORE-MTL
Size0.5” – 24” (other sizes available upon request)
ANSI150, 300, 600, 900, 1500 & 2500
TYPEFF = Flat Face, RF = Raised Face, MRJ = Male RTJ, or FRJ = Female RTJ
MTL304 = 304 St. Steel
316 = 316 St. Steel
D = Duplex
SD = Super Duplex
M = Monel
I = Inconel
WORKED EXAMPLES
STSP8-1-150-RF-316w150 ANSI Figure 8 Spectacle Blind RF in 316 St. Steel
STSP8-24-900-8MRJ-SD24” 1500 ANSI Figure 8
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