ASTM A105 ASME B16.48 Spacer Ring
Material SpecificationASME B16.48 Spacer Ring
ANSI B16.48 Standard Coverpressure ratings & temperature ratings, materials, marking, dimensions, weight, tolerances, testing
MaterialsCarbon Steel Spacer Ring – (ASTM A105)
Stainless Steel Spacer Ring – (ASTM A182 F304, F304L, F304H, F316, F316L, F316Ti, F310, F310S, F321, F321H, F317, F347, F347H, F904L.)
Alloy Steel Spacer Ring – (ASTM A182 F1, F11, F22, F5, F9, F91.)
Duplex Stainless Steel Spacer Ring – (UNS S31803, UNS S32750)
Nickel Alloys Spacer Ring – (Incoloy 800, 825, Hastelloy C22, C276, Monel 400 And 500, Inconel 600 And 625.)
ANSI B16.48 TestDuring leakage testing
test blanks
ANSI B16.48 Available InNPS 1/2 – NPS 24 Size
Use of ANSI/ANSI B16.48In bypass line
At unit battery limit
At outlets and inlets of static
Rotary equipment
ANSI B16.48 Facing TypesRaised Face – High Pressure Applications
Flat face – Low-Pressure Applications
Male & Female Ring-Joint Blank – Ring Joint Gaskets
Flanges StandardsEN 1092-1, JIS, ANSI B16.5, ANSI B16.47 type A, UNI, DIN
Pressure RatingClass 150 To Class 2500
ANSI B16.48 Marking StandardName of Manufacturer
Type of Flange Facing
Nominal Pipe Size
Pressure Class
ANSI B16 Designation
ANSI B16.48 Bolt Typehigh strength bolts
medium strength bolts
low strength bolts
ANSI B16.48 Surface Finishsmooth, concentric serrated, stock
ANSI B16.48 Gaskets TypesFull Face Gasket
Flat Ring Gasket
Metallic Ring Gakset