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Class 900WN FLANGES

Special One or Two Piece Ring and Orifice Plate Assembly - Groove Detail

Ring Type Joint Weld Neck Orifice Flanges Class 400 - 2500

Raised Face Weld Neck Orifice Flanges Class 400 - 2500

(Click any image above to enlarge it and lock it in place, then scroll to the bottom table for dimensions)
DrillingRing Type Joint
Nom SizeODThicknessOD of RFDia at BaseDia BevelLTHDia of Pressure ConnectionBolt CircleHole Dia# of holesBolt DiaGrove #Pitch DiaGroove DepthGroove WidthRad at BottomSpec Oval RH
OCRXAYTTPEFr maxW
in39.51.5553.54 3/87.518 7/8R314.8750.3120.4690.031.06
mm241.338.112712788.9101.69.5190.525.422.2123.8257.92511.9130.826.9
in411.51.756.196.254.54.5 1/29.251.2581 1/8R375.8750.3120.4690.031.06
mm292.144.5157.2158.8114.3114.312.723531.828.6149.2257.92511.9130.826.9
in6152.198.59.256.635.5 1/212.51.25121 1/8R458.3120.3120.4690.031.06
mm38155.6215.9235168.4139.712.7317.531.828.6211.1257.92511.9130.826.9
in818.52.510.6211.758.636.38 1/215.51.5121 3/8R4910.6250.3120.4690.031.06
mm469.963.5269.7298.5219.2162.112.7393.738.134.9269.8757.92511.9130.826.9
in1021.52.7512.7514.510.757.25 1/218.51.5161 3/8R5312.750.3120.4690.031.06
mm546.169.9323.9368.3273.1184.212.7469.938.134.9323.8507.92511.9130.826.9
in12243.121516.512.757.88 1/2211.5201 3/8R57150.3120.4690.031.06
mm609.679.2381419.1323.9200.212.7533.438.134.9381.0007.92511.9130.826.9
in1425.253.3816.2517.75148.38 1/2221.62201 1/2
mm641.485.9412.8450.9355.6212.912.7558.841.138.1
in1627.753.518.520168.5 1/224.31.75201 5/8
mm704.988.9469.9508406.4215.912.761644.541.3
in183142122.25189 1/2272201 7/8
mm787.4101.6533.4565.2457.2228.612.7685.850.847.6
in2033.754.252324.5209.75 1/229.52.12202
mm857.3108584.2622.3508247.712.7749.353.850.8
in24415.527.2529.52411.5 1/235.52.62202 1/2
mm1041.4139.7692.2749.3609.6292.112.7901.766.563.5

(1) Bore diameter to be specified by purchaser
(2) Other NPT and SW connections available upon request.
Welding Neck Orifice Class 900 Flange PDF (for printing).