WELDING NECK ORIFICE CLASS 300 FLANGES

Description

Drilling
Nom  SizeODThicknessOD of RFDia at BaseDia BevelLTHDia of Pressure ConnectionBolt CircleHole Dia# of HolesBolt Dia
OCRXAYTT
in14.881.522.121.323.25 1/43.50.694 5/8
mm12438.150.853.833.582.66.488.917.515.9
in1 1/26.121.52.882.751.93.38 1/44.50.814 3/4
mm155.438.173.269.948.385.96.4114.320.619.1
in26.51.53.623.312.383.38 1/450.698 5/8
mm165.138.191.984.160.585.96.412717.515.9
in2 1/27.51.54.123.942.883.5 1/45.880.818 3/4
mm190.538.1104.6100.173.288.96.4149.420.619.1
in38.251.554.623.53.5 3/86.620.818 3/4
mm209.638.1127117.388.988.99.5168.120.619.1
in4101.56.195.754.53.62 1/27.880.818 3/4
mm25438.1157.2146.1114.391.912.7200.220.619.1
in612.51.58.58.126.633.94 1/210.620.8812 3/4
mm317.538.1215.9206.2168.4100.112.7269.722.419.1
in8151.6210.6210.258.634.38 1/213112 7/8
mm38141.1269.7260.4219.2111.312.7330.225.422.2
in1017.51.8812.7512.6210.754.62 1/215.251.12161   
mm444.547.8323.9320.5273.1117.312.7387.428.425.4
in1220.521514.7512.755.12 1/217.751.25161 1/8
mm520.750.8381374.7323.913012.7450.931.828.6
in14232.1216.2516.75145.62 1/220.251.25201 1/8
mm584.253.8412.8425.5355.6142.712.7514.431.828.6
in1625.52.2518.519165.75 1/222.51.38201 1/4
mm647.757.2469.9482.6406.4146.112.7571.535.131.8
in18282.382121186.25 1/224.751.38241 1/4
mm711.260.5533.4533.4457.2158.812.7628.735.131.8
in2030.52.52323.12206.38 1/2271.38241 1/4
mm774.763.5584.2587.2508162.112.7685.835.131.8
in24362.7527.2527.62246.62 1/2321.62241 1/2
mm914.469.9692.2701.5609.6168.112.7812.841.138.1

Note: Weld Neck flanges NPS 3″ and smaller are identical to Class 600 flanges and may be so marked.

(1)- Bore Diameter to be specified by purchaser.
(2)- Other NPT and SW connections available upon request

Welding Neck Orifice Class 300 Flange PDF (for printing).

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