SAE flanges

Behind the scenes, we are working hard to stock our digital shelves. Can't find a specific product yet? Please feel free to contact us.

Searching for SAE flanges

Select 3000, 6000, or 9000 PSI (CAT). Also search by measured dimensions A, B, C, or E.

SAE series

All series

3000 PSI6000 PSI9000 PSI (CAT)

Sealing groove

All versions

With O-ring grooveWithout groove

Execution

All corners

Law90° at a right angle

Counter-connection

All connections

BSPCutting ring S

Search by measured dimensions (mm)

Enter one or more dimensions. Comparison with the SAE reference table, tolerance ±0.5 mm. A, B, C, and E are available for the confirmed CAT flange head sizes. Always measure the matching flange head.

A – horizontal bolt spacingB – vertical bolt spacingC – flange head diameterE – flange head thickness

Multiple values per filter possible. 9000 PSI (CAT): confirmed flange head dimension with E = 14.3 mm. CAT parts remain a separate series.

SAE dimensions and flanges

First select the series and size. For an unknown flange, preferably measure both center distances (A and B). C is the diameter of a flange head, E is the thickness of a flange head. For attached CAT flange heads, E = 14.3 mm. The thickness h of a separate flange half is a different measurement.

Technical dimension drawing: compare the letters with the dimension tables. The dimensions shown correspond to the matching flange head, not necessarily to the thickness or external dimensions of each accessory.

3000 PSIStandard SAE flange with proprietary bolt pattern.

6000 PSIHeavier series with its own dimensions.

9000 PSI (CAT)CAT flange heads with corresponding head bolt pattern and a thicker head (E = 14.3 mm). Use only the matching CAT components.

3000 PSI

Flange size / dash	A (mm)	W (mm)	C (mm)	E (mm)	Metric bolt	Bolt UNC
1/2" – 08	17.5	38.1	30.2	6.7	M8x30	5/16-18 x 1-1/4
3/4" – 12	22.2	47.6	38.1	6.7	M10x35	3/8-16 x 1-1/2
1" – 16	26.2	52.4	44.5	8	M10x35	3/8-16 x 1-1/2
1-1/4" – 20	30.2	58.7	50.8	8	M10x40	7/16-14 x 1-3/4
1-1/2" – 24	35.7	69.9	60.3	8	M12x45	1/2-13 x 1-3/4
2" – 32	42.9	77.8	71.4	9.5	M12x45	1/2-13 x 1-3/4
2-1/2" – 40	50.8	88.9	84.1	9.5	M14x45	1/2-13 x 1-3/4
3" – 48	62	106.4	101.6	9.5	M16x50	5/8-11 x 2

6000 PSI

Flange size / dash	A (mm)	W (mm)	C (mm)	E (mm)	Metric bolt	Bolt UNC
1/2" – 08	18.3	40.5	31.7	7.8	M8x30	5/16-18 x 1-1/4
3/4" – 12	23.8	50.8	41.3	8.8	M10x35	3/8-16 x 1-1/2
1" – 16	27.8	57.1	47.6	9.5	M12x45	7/16-14 x 1-3/4
1-1/4" – 20	31.7	66.7	54	10.3	M14x45	1/2-13 x 1-3/4
1-1/2" – 24	36.7	79.4	63.5	12.6	M16x50	5/8-11 x 2
2" – 32	44.4	96.8	79.4	12.6	M20x70	3/4-10 x 2-1/2
2-1/2" – 40	58.7	123.8	107.7	20.5	M24x80	—

9000 PSI (CAT)

Four CAT flange head sizes: A/B, C, and E according to the size chart confirmed by HydrauliekService; E = 14.3 mm. The separate column h is the thickness of a single CAT flange half and therefore NOT the flange head thickness E. Small rounding differences between suppliers are possible.

Flange size / dash	A (mm)	W (mm)	C (mm)	E (mm)	Metric bolt	Bolt UNC	Loose CAT flange half h (mm)
3/4" – 12	23.8	50.8	41.3	14.3	M10x40	3/8-16	13.5
1" – 16	27.8	57.2	47.6	14.3	M12x45	7/16-14	13.5
1-1/4" – 20	31.8	66.7	54	14.3	M14x50	1/2-13	13.5
1-1/2" – 24	36.5	79.4	63.5	14.3	M16x55	5/8-11	13.5

Important: 3000, 6000, and 9000 PSI (CAT) are selected separately. 9000 PSI uses the same nominal head bolt pattern as 6000 PSI for the fastened sizes but has a thicker flange head. Use only matching CAT clamp halves and always check the product-specific working pressure.

This size chart is a tool for determining the correct SAE connection. Before installation, check the product design, material, seal, fastening, and permissible working pressure. Technical drawings are schematic and not to scale.

Series is not a certified working pressure. Check flange head, bolt pattern, seal, and product specifications.