Hydac Clamps

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Womack Machine Supply Company proudly partners with Hydac to deliver the finest Clamps & Mounts available. Our collaboration ensures that customers in multiple locations across the United States have access to these exceptional products, click here to see available locations. Our commitment to excellence, combined with the reliability and performance of Hydac, guarantees that you receive top-quality Clamps & Mounts components for your specific needs.

HRL Series

Standard Duty

Available to 2˝ tube outside diameter

Recommended for systems with less than 1500 PSI operating pressure and no dynamic loads

Size	Bore Size		Recommended Nominal Size		Size	Bore Size		Recommended Nominal Size
Size	Inches	mm	Tube O.D	Pipe	Size	Inches	mm	Tube O.D	Pipe
0	0.24 0.25 0.31 0.37 0.39 0.47	6.0 6.4 8.0 9.5 10.0 12.0	– 1/4˝ 5/16˝ 3/8˝ – –	– – – – 1/8˝ –	4	1.05 1.10 1.18	26.6 28.0 30.0	– – –	3/4˝ – –
1	0.24 0.25 0.31 0.37 0.39 0.47	6.0 6.4 8.0 9.5 10.0 12.0	– 1/4˝ 5/16˝ 3/8˝ – –	– – – – 1/8˝ –	5	1.26 1.33 1.38 1.50 1.57 1.65	32.0 33.7 35.0 38.0 40.0 42.0	1-1/4˝ – – 1-1/2˝ – –	– 1˝ – – – 1-1/4˝
2	0.50 0.54 0.55 0.59 0.63 0.67 0.71	12.7 13.7 14.0 15.0 16.0 17.1 18.0	1/2˝ – – – 5/8˝ – –	– 1/4˝ – – – 3/8˝ –	6	1.75 1.90 2.00	44.5 48.3 50.8	1-3/4˝ – 2˝	– 1-1/2˝ –
3	0.75 0.79 0.84 0.87 0.91 0.98 1.00	19.0 20.0 21.3 22.0 23.0 25.0 25.4	3/4˝ – – – – – 1˝	– – 1/2˝ – – – –	7*	2.37 2.5 2.87 3	60 .3 63.5 73 76.1	– 2-1/2˝ – 3˝	2 – 2-1/2˝ –
8*	3.25	88.9	–	3˝

HRS Series

Heavy Duty

Available to 16˝ nominal pipe size

Recommended for systems with greater than 1500 PSI operating pressure, operations with pressure surges and applications with wide temperature fluctuations

Size	Bore Size		Recommended Nominal Size		Size	Bore Size		Recommended Nominal Size
Size	Inches	mm	Tube O.D	Pipe	Size	Inches	mm	Tube O.D	Pipe
1	0.24 0.25 0.32 0.37 0.39 0.41 0.50 0.54 0.55 0.59 0.63 0.67 0.71	6.0 6.4 8.0 9.5 10.0 10.3 12.7 13.7 14.0 15.0 16.0 17.1 18.0	– 1/4˝ 5/16˝ 3/8˝ – – 1/2˝ – – – 5/8˝ – –	– – – – – 1/8˝ – 1/4˝ – – – 3/8˝ –	6	2.56 3.78 4.00 4.25 4.50	65.0 96.0 101.6 108.0 114.3	– – 4˝ 4-1/4˝ 4-1/2˝	– – 3-1/2˝ – 4˝
2	0.75 0.79 0.84 0.87 0.98 1.00 1.05 1.10 1.18	19.0 20.0 21.3 22.0 25.0 25.4 26.7 28.0 30.0	3/4˝ – – 7/8˝ – 1˝ – – –	– – 1/2˝ – – – 3/4˝ – –	7	3.54 5.35 5.50 6.61	90.0 136.0 139.7 168.0	– – – –	– – 5˝ 6˝
3	0.98 1.18 1.26 1.33 1.38 1.50 1.57 1.65	25.0 30.0 32.0 33.7 35.0 38.0 40.0 42.0	– – 1-1/4˝ – – 1-1/2˝ – –	– – – 1˝ – – – 1-1/4˝	8	7.63 8.62	193.7 219.1	7-5/8˝ –	7˝ 8˝
4	1.18 1.50 1.65 1.75 1.90 2.00 2.13 2.24 2.37 2.50 2.56 2.75	30.0 38.0 42.0 44.5 48.3 50.8 54.0 57.0 60.3 63.5 65.0 70.0	– 1-1/2˝ – 1-3/4˝ – 2˝ – 2-1/4˝ – 2-1/2˝ – 2-3/4˝	– – 1-1/4˝ – 1-1/2˝ – – – 2˝ – – –	9	10.75 12.75	273.0 323.9	– –	10˝ 12˝
5	1.50 2.60 2.76 2.87 3.00 3.50	38.0 66.0 70.0 73.0 76.1 88.9	1-1/2˝ – – – 3˝ –	– – – 2-1/2˝ – 3˝	10	14.00 16.00	355.6 406.4	– –	14˝ 16˝

HRZ Series

Twin

Available to 1¼˝ nominal pipe size

Recommended for systems with less than 1500 PSI operating pressure and no dynamic loads

Size	Bore Size		Recommended Nominal Size		Size	Bore Size		Recommended Nominal Size
Size	Inches	mm	Tube O.D	Pipe	Size	Inches	mm	Tube O.D	Pipe
1	0.24 0.25 0.32 0.37 0.39 0.41 0.47	6.0 6.4 8.0 9.5 10.0 10.3 12.0	– 1/4˝ 5/16˝ 3/8˝ – – –	– – – – 1/8˝ 1/8˝ –	4	1.05 1.10 1.18	26.7 28.0 30.0	– – –	3/4˝ – –
2	0.50 0.54 0.55 0.59 0.63 0.67	12.7 13.7 14.0 15.0 16.0 17.1	1/2˝ – – – 5/8˝ –	– 1/4˝ – – – 3/8˝	5	1.26 1.33 1.38 1.50 1.60 1.65	32.0 33.7 35.0 38.0 40.0 42.0	1-1/4˝ – – 1-1/2˝ – –	– 1˝ – – – 1-1/4˝
3	0.75 0.79 0.84 0.87 0.91 0.98 1.00	19.0 20.0 21.3 22.0 23.0 25.0 25.4	3/4˝ – – 7/8˝ – – 1˝	– – 1/2˝ – – – –

HREL Series

Standard Duty with Rubber Insert

Available to 2˝ tube outside diameter

Recommended for systems with less than 1500 PSI operating pressure and no dynamic loads

Provide for greater noise reduction and resistance to axial movement

Clamp Size	EE – Rubber Insert			Recommended Nominal Size
	Size	Bore Size		Tube O.D.	Pipe	Hose O.D.
	Size	Inches	mm	Tube O.D.	Pipe	Minimum (Inches)	Maximum (Inches)
4	2/4 L	0.24 0.32 0.39 0.47 0.50 0.55 0.59 0.63 0.68 0.75	6.0 8.0 10.0 12.0 12.7 14.0 15.0 16.0 17.2 19.0	– 5/16˝ – – 1/2˝ – – 5/8˝ – 3/4˝	– – 1/8˝ – – – – – 3/8˝ –	0.22 0.30 0.37 0.45 0.48 0.53 0.57 0.61 0.66 0.73	0.24 0.32 0.39 0.47 0.50 0.55 0.59 0.63 0.68 0.75
6	3/6 L	0.79 0.87 0.98 1.06 1.10 1.18 1.26	20.0 22.0 25.0 26.9 28.0 30.0 32.0	– 7/8˝ 1˝ – – – 1-1/4˝	1/2˝ – – 3/4˝ – – –	0.77 0.85 0.96 1.04 1.08 1.16 1.24	0.79 0.87 0.98 1.06 1.10 1.18 1.26

HRES Series

Heavy Duty with Rubber Insert

Heavy duty available to 5¼˝ bore diameter

Provide for greater noise reduction and resistance to axial movement

Clamp Size	EE – Rubber Insert			Recommended Nominal Size
	Size	Bore Size		Tube O.D.	Pipe	Hose O.D.
	Size	Inches	mm	Tube O.D.	Pipe	Minimum (Inches)	Maximum (Inches)
2	2/4 L	0.24 0.32 0.39 0.47 0.50 0.55 0.59 0.63 0.68 0.75	6.0 8.0 10.0 12.0 12.7 14.0 15.0 16.0 17.2 19.0	– 5/16˝ – – 1/2˝ – – 5/8˝ – 3/4˝	– – 1/8˝ – – – – – 3/8˝ –	0.22 0.30 0.37 0.45 0.48 0.53 0.57 0.61 0.66 0.73	0.24 0.32 0.39 0.47 0.50 0.55 0.59 0.63 0.68 0.75
3	3/6 L	0.79 0.87 0.98 1.06 1.10 1.18 1.26	20.0 22.0 25.0 26.9 28.0 30.0 32.0	– 7/8˝ 1˝ – – – 1-1/4˝	1/2˝ – – 3/4˝ – – –	0.77 0.85 0.96 1.04 1.08 1.16 1.24	0.79 0.87 0.98 1.06 1.10 1.18 1.26
4	4	1.33 1.38 1.50 1.58 1.65 1.79 1.89 2.01 2.10 2.22	33.7 35.0 38.0 40.0 42.0 45.5 48.0 51.0 53.4 56.4	– – 1-1/2˝ – – – – 2˝ – –	1˝ – – – – – 1-1/2˝ – – –	1.31 1.36 1.48 1.56 1.63 1.77 1.87 1.99 2.08 2.20	1.33 1.38 1.50 1.58 1.66 1.79 1.89 2.01 2.10 2.22
5	5	2.36 2.56 2.76 2.87 2.99	60.0 65.0 70.0 73.0 76.0	– – – – 3˝	2˝ – – 2-1/2˝ –	2.34 2.54 2.74 2.85 2.97	2.36 2.56 2.76 2.87 2.99
6	6	3.27 3.50 3.70 3.98	83.0 89.0 94.0 101.0	– 3-1/2˝ – 4˝	– 3˝ – 3-1/2˝	3.19 3.43 3.62 3.90	3.27 3.50 3.70 3.98
7	7	4.26 4.49 5.24	108.0 114.0 133.0	– – –	– 4˝ –	4.17 4.41 5.16	4.26 4.49 5.24