Class 300 Forged Steel Raised Face Blind Flanges

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Class 300 Forged Steel Raised Face Blind Flanges

These Class 300 Forged Steel Raised Face Blind Flanges (Series RFB-30) are manufactured to ANSI B16.5 and ASTM A-105 standards, and are stronger than cast flanges. These forged steel raised face flanges are used for sealing off piping systems and is rated for use in high pressure and high temperature applications.

ALL DIMENSIONS ARE IN INCHES UNLESS OTHERWISE STATED
API Part NumberSizeO.D.I.D.Ø B.H.C.Ø B.H.# B.H.THKØ RFWeight Lbs
RFB0050-300.53.75 --2.630.75040.5631.3751.4
RFB0075-300.754.63 --3.250.75040.6251.6882.5
RFB0100-3014.88 --3.500.75040.6882.0003.0
RFB0125-301.255.25 --3.880.75040.7502.5004.0
RFB0150-301.56.13 --4.500.87540.8132.8756.0
RFB0200-3026.50 --5.000.75080.8753.6258.0
RFB0250-302.57.50 --5.880.87581.0004.12511.0
RFB0300-3038.25 --6.630.87581.1255.00015.0
RFB0350-303.59.00 --7.250.87581.1885.50020.0
RFB0400-30410.00 --7.880.87581.2506.18825.0
RFB0500-30511.00 --9.250.87581.3757.31335.0
RFB0600-30612.50 --10.630.875121.4388.50046.0
RFB0800-30815.00 --13.001.000121.62510.62575.0
RFB1000-301017.50 --15.251.125161.87512.750124.0
RFB1200-301220.50 --17.751.250162.00015.000174.0
RFB1400-301423.00 --20.251.250202.12516.250246.0
RFB1600-301625.50 --22.501.375202.25018.500315.0
RFB1800-301828.00 --24.751.375242.37521.000427.0
RFB2000-302030.50 --27.001.375242.50023.000515.0
RFB2400-302436.00 --32.001.625242.75027.250800.0

Notes:
a. Dimensions and Tolerances per ANSI B16.5.
b. Flanges are painted black.
c. ASTM A-105.

Class 300 Forged Steel Raised Face Blind Flanges - per ANSI B16.5 (Series RFB-30) Drawing