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Class 175 Flanges

Slip On Flange

Blind

(Click any image above to enlarge it and lock it in place, then scroll to the bottom table for dimensions)

INDUSTRY STANDARD CLASS 175

ThicknessBoreLTH
Nom SizeODWeld NeckSlip-OnBlindOD of RFDia at BaseWeld NeckSlip-OnWeld NeckSlip-OnDia Bevel
OTTRXBBLLA
2631.51.381.381.782927.63flanges, flange, industrial flanges, industrial flange, industrial pipe flanges, industrial fittings, industrial pipe, industrial carbon steel, industrial blind, industrial blinds, industrial, industrial waterworks, industrial stainless steel, industrial steel, industrial weld, industrial forgings, industrial orifice, industrial slip, industrial steel flange, industrial steel flanges, industrial titanium flange, industrial titanium flanges26.253.382.75flanges, flange, industrial flanges, industrial flange, industrial pipe flanges, industrial fittings, industrial pipe, industrial carbon steel, industrial blind, industrial blinds, industrial, industrial waterworks, industrial stainless steel, industrial steel, industrial weld, industrial forgings, industrial orifice, industrial slip, industrial steel flange, industrial steel flanges, industrial titanium flange, industrial titanium flanges
2833.51.381.3823129.6328.253.382.75
3035.751.381.382.1333.2531.8830.253.632.75
3237.751.381.382.2535.2533.8832.253.632.75
3440.251.51.752.3837.3835.8834.253.753.38
3642.251.51.752.539.3837.8836.253.753.38
3844.251.7522.6341.3839.8838.254.133.75
4046.251.7522.7543.3841.8840.254.134
424922.382.8845.7544.1342.254.54.38
445122.38347.7546.1344.254.54.38
465322.383.1349.7548.1346.254.54.63
48552.252.633.3851.7550.1348.254.884.88
50572.252.633.3853.7552.1350.254.884.88
5259.52.6333.635654.2552.255.385.38
5461.52.6333.635856.2554.255.385.38
6067.52.753.1346462.2560.255.755.88
6673.53.1344.387068.566.256.136.88
72803.6354.7576.574.572.256.638
8494355.590.138884.2578.5
961063.556.12102.1310096.257.59

Dimensions are in inches. Weights are in pounds.

DrillingWeight
Nom SizeBolt CircleBolt LengthaHole Diab# of HolesWeld NeckSlip OnBlind
2629.885.50.8828120105405
2831.885.750.8828130115490
3034.135.750.8836150130590
3236.1360.8836160140700
3438.386.75136195200840
3640.386.75136205210970
3842.387.251362452501125
4044.387.251402552701300
4246.8881.13403403651500
4448.888.251.13403603801700
4650.888.251.13403754101925
4852.888.751.13444304602225
5054.888.751.13444504802400
5257.259.751.25445606002800
5459.259.751.25445806203000
6065.2510.251.25486807304000
6671.2511.51.255683010005175
7277.7512.751.2564107514006650
8491.513.751.387215502250
96103.514.251.388819502600

Dimensions are in inches. Weights are in pounds.

Note:
Sizes are nominal inside diameters of pipe or shell used with Welding Neck flanges, and nominal OD of pipe or shell used with Slip-On flanges. Larger sizes, as well as intermediate sizes, can be furnished.

Bolt lengths are calculated based on bolting on slip-on to one blind. Any other bolting combination will cause variance in bolt length.

Bolt hole diameter 1/8in. larger than bolt diameter

Class 175 Flange PDF (for printing).