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"HPMC/HSMC Series" Rotary Union

"HPMC/HSMC Series" Rotary Union

Multi port rotary union designed for high speed or high pressure applications.

Model:

HPMC/HSMC Series / SRU-4093

HPMC/HSMC Series Rotary Union

Features and Benefits

High Pressure or High Speed Applications - Duff-Norton multi-port Rotary Unions are available in both high pressure (HPMC Series) and high speed (HSMC Series) configurations.
Pressures Up to 5,880 psi - HPMC Series Rotary Unions are designed for higher pressure, available with up to eight ports as standard and are suitable for use in low speed applications for pressures up to 5,880 psi.
Available up to 4 Ports - HSMC Series Rotary Unions are available with up to four ports as standard.
Speeds up to 3,000 RPM - HSMC Series is perfect for low pressure applications, up to 175 psi with rotational speeds up to 3,000 RPM.
No Cross Contamination - Feel free to run dissimilar fluids through Duff-Norton Multi-Port Rotary Unions as each port is always individually sealed eliminating cross contamination between circuits.

HPMC Series Muti-Port Rotary Union Dimensional Diagram

HPMC Series Muti Port Rotary Union Diagram

No. of Ports	Part No.	Desc.	A	B	C	D	E & Vg6	F	G (npt)	H	Ref. O-ring	I	J	K	L	M	N	O	P	Q	R	S	T	U
2	750748C	RMC206R2KNPT	5.89	1.04	3.15	0.24	35	0.87	1/8	0.35	06X01.5	2.36	0.35	3.05	0.59	0.39	M8	1.26	2.26	3.15	1.18	0.39	0.71	3/8
3	750749C	RMC306R2KNPT	6.93	1.04	3.15	0.24	35	0.87	1/8	0.35	06X01.5	2.36	0.35	3.05	0.59	0.39	M8	1.26	3.31	3.15	1.18	0.39	0.71	3/8
4	750750C	RMC406R2KNPT	7.97	1.04	3.15	0.24	35	0.87	1/8	0.35	06X01.5	2.36	0.35	3.05	0.59	0.39	M8	1.26	4.35	3.15	1.18	0.39	0.71	3/8
5	750751C	RMC506R2KNPT	9.02	1.04	3.15	0.24	35	0.87	1/8	0.35	06X01.5	2.36	0.35	3.05	0.59	0.39	M8	1.26	5.39	3.15	1.18	0.39	0.71	3/8
6	750752C	RMC606R2KNPT	10.06	1.04	3.15	0.24	35	0.87	1/8	0.35	06X01.5	2.36	0.35	3.05	0.59	0.39	M8	1.26	6.44	3.15	1.18	0.39	0.71	3/8
7	750753C	RMC706R2KNPT	12.32	1.14	3.94	0.24	40	1.06	1/8	0.35	06X01.5	2.83	0.43	3.50	0.79	0.47	M8	1.26	8.43	3.54	1.38	0.47	0.71	1/2
8	750754C	RMC806R2KNPT	13.46	1.14	3.94	0.24	40	1.06	1/8	0.35	06X01.5	2.83	0.43	3.50	0.79	0.47	M8	1.26	9.57	3.54	1.38	0.47	0.71	1/2
2	750755C	RMC208R2KNPT	6.77	1.22	3.94	0.31	40	0.94	1/4	0.47	R6A	2.83	0.43	3.54	0.79	0.47	M10	1.26	2.87	3.54	1.38	0.31	0.87	1/4
3	750756C	RMC308R2KNPT	7.99	1.22	3.94	0.31	40	0.94	1/4	0.47	R6A	2.83	0.43	3.54	0.79	0.47	M10	1.26	4.09	3.54	1.38	0.31	0.87	1/4
4	750757C	RMC408R2KNPT	9.21	1.22	3.94	0.31	40	0.94	1/4	0.47	R6A	2.83	0.43	3.54	0.79	0.47	M10	1.26	5.31	3.54	1.38	0.31	0.87	1/4
5	750758C	RMC508R2KNPT	10.43	1.22	3.94	0.31	40	1.02	1/4	0.47	R6A	2.83	0.43	3.54	0.79	0.47	M10	1.26	6.54	3.54	1.38	0.39	0.87	3/8
6	750759C	RMC608R2KNPT	12.48	1.30	4.53	0.31	55	1.48	1/4	0.47	R6A	3.39	0.43	3.80	0.79	0.55	M10	1.46	8.11	4.53	1.97	0.47	0.87	1/2
7	750760C	RMC708R2KNPT	13.78	1.30	4.53	0.31	55	1.48	1/4	0.47	R6A	3.39	0.43	3.80	0.79	0.55	M10	1.46	9.41	4.53	1.97	0.47	0.87	1/2
8	750761C	RMC808R2KNPT	15.08	1.30	4.53	0.31	55	1.48	1/4	0.47	R6A	3.39	0.43	3.80	0.79	0.55	M10	1.46	10.71	4.53	1.97	0.47	0.87	1/2
2	750762C	RMC210R2KNPT	6.93	1.30	3.94	0.39	40	0.94	3/8	0.49	0.10X01.3	2.83	0.43	3.58	0.79	0.47	M10	1.26	3.03	3.54	1.38	0.31	0.98	1/4
3	750763C	RMC310R2KNPT	8.23	1.30	3.94	0.39	40	0.94	3/8	0.49	0.10X01.3	2.83	0.43	3.58	0.79	0.47	M10	1.26	4.33	3.54	1.38	0.31	0.98	1/4
4	750764C	RMC410R2KNPT	9.53	1.30	3.94	0.39	40	0.94	3/8	0.49	0.10X01.3	2.83	0.43	3.58	0.79	0.47	M10	1.26	5.63	3.54	1.38	0.31	0.98	1/4
5	750765C	RMC510R2KNPT	11.57	1.38	4.53	0.39	55	1.34	3/8	0.49	0.10X01.3	3.39	0.43	3.84	0.79	0.55	M10	1.46	7.20	4.53	1.97	0.47	0.98	1/2
6	750766C	RMC610R2KNPT	12.95	1.38	4.53	0.39	55	1.34	3/8	0.49	0.10X01.3	3.39	0.43	3.84	0.79	0.55	M10	1.46	8.58	4.53	1.97	0.47	0.98	1/2
7	750767C	RMC710R2KNPT	14.33	1.38	4.53	0.39	55	1.34	3/8	0.49	0.10X01.3	3.39	0.43	3.84	0.79	0.55	M10	1.46	9.96	4.53	1.97	0.47	0.98	1/2
8	750768C	RMC810R2KNPT	16.26	1.38	5.51	0.39	70	1.85	3/8	0.49	0.10X01.3	4.25	0.51	4.27	0.98	0.59	M12	1.57	11.42	5.31	2.56	0.71	0.98	3/4
2	750769C	RMC212R2KNPT	7.60	1.46	4.53	0.47	55	1.26	1/2	0.69	R10	3.39	0.43	3.88	0.79	0.55	M12	1.46	3.23	4.53	1.97	0.39	1.26	3/8
3	750770C	RMC312R2KNPT	9.06	1.46	4.53	0.47	55	1.26	1/2	0.69	R10	3.39	0.43	3.88	0.79	0.55	M12	1.46	4.69	4.53	1.97	0.39	1.26	3/8
4	750771C	RMC412R2KNPT	10.51	1.46	4.53	0.47	55	1.26	1/2	0.69	R10	3.39	0.43	3.88	0.79	0.55	M12	1.46	6.14	4.53	1.97	0.39	1.26	3/8
5	750772C	RMC512R2KNPT	12.52	1.46	5.51	0.47	70	1.65	1/2	0.69	R10	4.25	0.51	4.31	0.98	0.59	M12	1.57	7.72	5.31	2.56	0.47	1.26	1/2
6	750773C	RMC612R2KNPT	15.20	1.54	6.69	0.47	90	2.13	1/2	0.69	R10	5.20	0.67	4.80	1.18	0.63	M12	1.77	9.72	6.30	3.35	0.71	1.26	3/4
7	750774C	RMC712R2KNPT	16.73	1.54	6.69	0.47	90	2.13	1/2	0.69	R10	5.20	0.67	4.80	1.18	0.63	M12	1.77	11.26	6.30	3.35	0.71	1.26	3/4
8	750775C	RMC812R2KNPT	18.27	1.54	6.69	0.47	90	2.13	1/2	0.69	R10	5.20	0.67	4.80	1.18	0.63	M12	1.77	12.80	6.30	3.35	0.71	1.26	3/4
2	750776C	RMC218R2KNPT	8.66	1.69	5.51	0.71	70	1.50	3/4	0.94	R14	4.25	0.51	4.43	0.98	0.59	M12	1.57	3.86	5.31	2.56	0.39	1.46	3/8
3	750777C	RMC318R2KNPT	10.35	1.69	5.51	0.71	70	1.50	3/4	0.94	R14	4.25	0.51	4.43	0.98	0.59	M12	1.57	5.55	5.31	2.56	0.39	1.46	3/8
4	750778C	RMC418R2KNPT	12.05	1.69	5.51	0.71	70	1.50	3/4	0.94	R14	4.25	0.51	4.43	0.98	0.59	M12	1.57	7.24	5.31	2.56	0.39	1.46	3/8
5	750779C	RMC518R2KNPT	14.84	1.77	6.69	0.71	90	2.20	3/4	0.94	R14	5.20	0.67	4.92	1.18	0.63	M12	1.77	9.37	6.30	3.35	0.71	1.46	3/4
2	750780C	RMC225R2KNPT	10.08	2.05	6.69	0.98	90	1.97	1	1.26	R19	5.20	0.67	5.06	1.18	0.63	M14	1.77	4.61	6.30	3.35	0.47	1.69	1/2
3	750781C	RMC325R2KNPT	12.13	2.05	6.69	0.98	90	1.97	1	1.26	R19	5.20	0.67	5.06	1.18	0.63	M14	1.77	6.65	6.30	3.35	0.47	1.69	1/2
4	750782C	RMC425R2KNPT	14.17	2.05	6.69	0.98	90	1.97	1	1.26	R19	5.20	0.67	5.06	1.18	0.63	M14	1.77	8.70	6.30	3.35	0.47	1.69	1/2
5	750783C	RMC525R2KNPT	17.32	2.17	7.48	0.98	105	2.72	1	1.26	R19	5.91	0.67	5.41	1.18	0.63	M14	2.05	11.38	7.48	3.94	0.71	1.69	3/4
2	750784C	RMC231R2KNPT	11.30	2.40	7.48	1.22	105	2.24	1-1/4	1.44	R22	5.91	0.67	5.53	1.18	0.63	M14	2.05	5.35	7.48	3.94	0.47	2.17	1/2
3	750785C	RMC331R2KNPT	13.70	2.40	7.48	1.22	105	2.24	1-1/4	1.44	R22	5.91	0.67	5.53	1.18	0.63	M14	2.05	7.76	7.48	3.94	0.47	2.17	1/2
4	750786C	RMC431R2KNPT	16.10	2.40	7.48	1.22	105	2.24	1-1/4	1.44	R22	5.91	0.67	5.53	1.18	0.63	M14	2.05	10.16	7.48	3.94	0.47	2.17	1/2
5	750787C	RMC531R2KNPT	20.87	2.64	9.06	1.22	140	3.43	1-1/4	1.44	R22	7.24	0.67	6.28	1.18	0.79	M16	2.44	13.90	9.06	5.12	0.71	2.17	3/4

HSMC Series Multi-Port Rotary Union Dimensional Diagram

HSMC Series Multi Port Rotary Union Diagram

No. of Ports	Part No.	Desc.	A	B	C	D	V	F	G (NPT)	H	Ref. O-ring	I	J	K	L	M	N	O	P	Q	R	T
2	750889C	RMC206RVRKNPT	5.89	1.04	3.15	0.24	35	0.87	1/8	0.35	06X01.5	2.36	0.35	3.05	0.59	0.39	M8	1.26	2.26	3.15	1.18	0.71
3	750809C	RMC306RVRKNPT	6.93	1.04	3.15	0.24	35	0.87	1/8	0.35	06X01.5	2.36	0.35	3.05	0.59	0.39	M8	1.26	3.31	3.15	1.18	0.71
4	750810C	RMC406RVRKNPT	7.97	1.04	3.15	0.24	35	0.87	1/8	0.35	06X01.5	2.36	0.35	3.05	0.59	0.39	M8	1.26	4.35	3.15	1.18	0.71
2	750811C	RMC208RVRKNPT	6.77	1.22	3.94	0.31	40	0.94	1/4	0.47	R6A	2.83	0.43	3.54	0.79	0.47	M10	1.26	2.87	3.54	1.38	0.87
3	750812C	RMC308RVRKNPT	7.99	1.22	3.94	0.31	40	0.94	1/4	0.47	R6A	2.83	0.43	3.54	0.79	0.47	M10	1.26	4.09	3.54	1.38	0.87
4	750813C	RMC408RVRKNPT	9.21	1.22	3.94	0.31	40	0.94	1/4	0.47	R6A	2.83	0.43	3.54	0.79	0.47	M10	1.26	5.31	3.54	1.38	0.87
2	750814C	RMC210RVRKNPT	6.93	1.30	3.94	0.39	40	0.94	3/8	0.49	010X01.3	2.83	0.43	3.58	0.79	0.47	M10	1.26	3.03	3.54	1.38	0.98
3	750815C	RMC310RVRKNPT	8.23	1.30	3.94	0.39	40	0.94	3/8	0.49	010X01.3	2.83	0.43	3.58	0.79	0.47	M10	1.26	4.33	3.54	1.38	0.98
4	750816C	RMC410RVRKNPT	9.53	1.30	3.94	0.39	40	0.94	3/8	0.49	010X01.3	2.83	0.43	3.58	0.79	0.47	M10	1.26	5.63	3.54	1.38	0.98

HPMC Series Performance Charts

HSMC Series Performance Charts

Rotary Union Design

While rotating joints come in many shapes, sizes, and configurations, they always have the same four basic components: housing, a shaft, a bearing (or bearings) and a seal.

Mechanical Seal

The heart of the Rotary Union or rotary joint is the seal.

The seal prevents the medium (water, oil, air, etc) from leaking outside the Rotary Union while the Rotary Union is in operation.

Duff-Norton uses four basic types of mechanical seals in its Rotary Unions: 1) pusher-type end face mechanical seal, 2) non-pusher type end face mechanical seal, 3) lip seals and 4) o-ring seal. Rotary Unions may have more than one seal.

Bearing

The second most important part of the Rotary Union is the bearing. A Rotary Union may have only one bearing or multiple bearings.

Roller bearings, such as ball bearings and tapered roller bearings, or non-roller bearings, like graphite bearings and bronze bushings, may be used in the Rotary Union.

The bearings are always used to allow a part of the joint, either the shaft or the housing, to rotate.

Shaft

The shaft is the component that carries the medium through the Rotary Union into the drum or roll. In many cases, the shaft will turn with the drum or roll. In some cases, like in larger flanged rotary Unions, the shaft may be stationary while the housing rotates. The bearings and seal are typically assembled around the shaft.

Housing

The housing is the component that holds all of the other elements of the Rotary Union together. The housing has an inlet port, which is a threaded port to which the hose supplying the medium will be attached .

The Rotary Union may also have an outlet port, if the same joint is being used both to supply fluid to a roll and to remove fluid from the roll. In smaller Rotary Unions, the housing is stationary. In larger Rotary Unions, the housing maybe bolted to the drum or roll using a flange. In these cases, the housing rotates at the same speed as the drum.

Options

Part N°	Description	Overall Length (A)	Number of Ports	Unit Price
4093-T22091 750748C	RMC206R2KNPT	5.89	2	Quote Required
4093-T22092 750749C	RMC306R2KNPT	6.93	3	Quote Required
4093-T22093 750750C	RMC406R2KNPT	7.97	4	Quote Required
4093-T22094 750751C	RMC506R2KNPT	9.02	5	Quote Required
4093-T22095 750752C	RMC606R2KNPT	10.06	6	Quote Required
4093-T22096 750753C	RMC706R2KNPT	12.32	7	Quote Required
4093-T22097 750754C	RMC806R2KNPT	13.46	8	Quote Required
4093-T22098 750755C	RMC208R2KNPT	6.77	2	Quote Required
4093-T22099 750756C	RMC308R2KNPT	7.99	3	Quote Required
4093-T22100 750757C	RMC408R2KNPT	9.21	4	Quote Required
4093-T22101 750758C	RMC508R2KNPT	10.43	5	Quote Required
4093-T22102 750759C	RMC608R2KNPT	12.48	6	Quote Required
4093-T22103 750760C	RMC708R2KNPT	13.78	7	Quote Required
4093-T22104 750761C	RMC808R2KNPT	15.08	8	Quote Required
4093-T22105 750762C	RMC210R2KNPT	6.93	2	Quote Required
4093-T22106 750763C	RMC310R2KNPT	8.23	3	Quote Required
4093-T22107 750764C	RMC410R2KNPT	9.53	4	Quote Required
4093-T22108 750765C	RMC510R2KNPT	11.57	5	Quote Required
4093-T22109 750766C	RMC610R2KNPT	12.95	6	Quote Required
4093-T22110 750767C	RMC710R2KNPT	14.33	7	Quote Required
4093-T22111 750768C	RMC810R2KNPT	16.26	8	Quote Required
4093-T22112 750769C	RMC212R2KNPT	7.60	2	Quote Required
4093-T22113 750770C	RMC312R2KNPT	9.06	3	Quote Required
4093-T22114 750771C	RMC412R2KNPT	10.51	4	Quote Required
4093-T22115 750772C	RMC512R2KNPT	12.52	5	Quote Required
4093-T22116 750773C	RMC612R2KNPT	15.20	6	Quote Required
4093-T22117 750774C	RMC712R2KNPT	16.73	7	Quote Required
4093-T22118 750775C	RMC812R2KNPT	18.27	8	Quote Required
4093-T22119 750776C	RMC218R2KNPT	8.66	2	Quote Required
4093-T22120 750777C	RMC318R2KNPT	10.35	3	Quote Required
4093-T22121 750778C	RMC418R2KNPT	12.05	4	Quote Required
4093-T22122 750779C	RMC518R2KNPT	14.84	5	Quote Required
4093-T22123 750780C	RMC225R2KNPT	10.08	2	Quote Required
4093-T22124 750781C	RMC325R2KNPT	12.13	3	Quote Required
4093-T22125 750782C	RMC425R2KNPT	14.17	4	Quote Required
4093-T22126 750783C	RMC525R2KNPT	17.32	5	Quote Required
4093-T22127 750784C	RMC231R2KNPT	11.30	2	Quote Required
4093-T22128 750785C	RMC331R2KNPT	13.70	3	Quote Required
4093-T22129 750786C	RMC431R2KNPT	16.10	4	Quote Required
4093-T22130 750787C	RMC531R2KNPT	20.87	5	Quote Required
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HPMC/HSMC Series Rotary Union

Features and Benefits

High Pressure or High Speed Applications - Duff-Norton multi-port Rotary Unions are available in both high pressure (HPMC Series) and high speed (HSMC Series) configurations.
Pressures Up to 5,880 psi - HPMC Series Rotary Unions are designed for higher pressure, available with up to eight ports as standard and are suitable for use in low speed applications for pressures up to 5,880 psi.
Available up to 4 Ports - HSMC Series Rotary Unions are available with up to four ports as standard.
Speeds up to 3,000 RPM - HSMC Series is perfect for low pressure applications, up to 175 psi with rotational speeds up to 3,000 RPM.
No Cross Contamination - Feel free to run dissimilar fluids through Duff-Norton Multi-Port Rotary Unions as each port is always individually sealed eliminating cross contamination between circuits.

HPMC Series Muti-Port Rotary Union Dimensional Diagram

No. of Ports	Part No.	Desc.	A	B	C	D	E & Vg6	F	G (npt)	H	Ref. O-ring	I	J	K	L	M	N	O	P	Q	R	S	T	U
2	750748C	RMC206R2KNPT	5.89	1.04	3.15	0.24	35	0.87	1/8	0.35	06X01.5	2.36	0.35	3.05	0.59	0.39	M8	1.26	2.26	3.15	1.18	0.39	0.71	3/8
3	750749C	RMC306R2KNPT	6.93	1.04	3.15	0.24	35	0.87	1/8	0.35	06X01.5	2.36	0.35	3.05	0.59	0.39	M8	1.26	3.31	3.15	1.18	0.39	0.71	3/8
4	750750C	RMC406R2KNPT	7.97	1.04	3.15	0.24	35	0.87	1/8	0.35	06X01.5	2.36	0.35	3.05	0.59	0.39	M8	1.26	4.35	3.15	1.18	0.39	0.71	3/8
5	750751C	RMC506R2KNPT	9.02	1.04	3.15	0.24	35	0.87	1/8	0.35	06X01.5	2.36	0.35	3.05	0.59	0.39	M8	1.26	5.39	3.15	1.18	0.39	0.71	3/8
6	750752C	RMC606R2KNPT	10.06	1.04	3.15	0.24	35	0.87	1/8	0.35	06X01.5	2.36	0.35	3.05	0.59	0.39	M8	1.26	6.44	3.15	1.18	0.39	0.71	3/8
7	750753C	RMC706R2KNPT	12.32	1.14	3.94	0.24	40	1.06	1/8	0.35	06X01.5	2.83	0.43	3.50	0.79	0.47	M8	1.26	8.43	3.54	1.38	0.47	0.71	1/2
8	750754C	RMC806R2KNPT	13.46	1.14	3.94	0.24	40	1.06	1/8	0.35	06X01.5	2.83	0.43	3.50	0.79	0.47	M8	1.26	9.57	3.54	1.38	0.47	0.71	1/2
2	750755C	RMC208R2KNPT	6.77	1.22	3.94	0.31	40	0.94	1/4	0.47	R6A	2.83	0.43	3.54	0.79	0.47	M10	1.26	2.87	3.54	1.38	0.31	0.87	1/4
3	750756C	RMC308R2KNPT	7.99	1.22	3.94	0.31	40	0.94	1/4	0.47	R6A	2.83	0.43	3.54	0.79	0.47	M10	1.26	4.09	3.54	1.38	0.31	0.87	1/4
4	750757C	RMC408R2KNPT	9.21	1.22	3.94	0.31	40	0.94	1/4	0.47	R6A	2.83	0.43	3.54	0.79	0.47	M10	1.26	5.31	3.54	1.38	0.31	0.87	1/4
5	750758C	RMC508R2KNPT	10.43	1.22	3.94	0.31	40	1.02	1/4	0.47	R6A	2.83	0.43	3.54	0.79	0.47	M10	1.26	6.54	3.54	1.38	0.39	0.87	3/8
6	750759C	RMC608R2KNPT	12.48	1.30	4.53	0.31	55	1.48	1/4	0.47	R6A	3.39	0.43	3.80	0.79	0.55	M10	1.46	8.11	4.53	1.97	0.47	0.87	1/2
7	750760C	RMC708R2KNPT	13.78	1.30	4.53	0.31	55	1.48	1/4	0.47	R6A	3.39	0.43	3.80	0.79	0.55	M10	1.46	9.41	4.53	1.97	0.47	0.87	1/2
8	750761C	RMC808R2KNPT	15.08	1.30	4.53	0.31	55	1.48	1/4	0.47	R6A	3.39	0.43	3.80	0.79	0.55	M10	1.46	10.71	4.53	1.97	0.47	0.87	1/2
2	750762C	RMC210R2KNPT	6.93	1.30	3.94	0.39	40	0.94	3/8	0.49	0.10X01.3	2.83	0.43	3.58	0.79	0.47	M10	1.26	3.03	3.54	1.38	0.31	0.98	1/4
3	750763C	RMC310R2KNPT	8.23	1.30	3.94	0.39	40	0.94	3/8	0.49	0.10X01.3	2.83	0.43	3.58	0.79	0.47	M10	1.26	4.33	3.54	1.38	0.31	0.98	1/4
4	750764C	RMC410R2KNPT	9.53	1.30	3.94	0.39	40	0.94	3/8	0.49	0.10X01.3	2.83	0.43	3.58	0.79	0.47	M10	1.26	5.63	3.54	1.38	0.31	0.98	1/4
5	750765C	RMC510R2KNPT	11.57	1.38	4.53	0.39	55	1.34	3/8	0.49	0.10X01.3	3.39	0.43	3.84	0.79	0.55	M10	1.46	7.20	4.53	1.97	0.47	0.98	1/2
6	750766C	RMC610R2KNPT	12.95	1.38	4.53	0.39	55	1.34	3/8	0.49	0.10X01.3	3.39	0.43	3.84	0.79	0.55	M10	1.46	8.58	4.53	1.97	0.47	0.98	1/2
7	750767C	RMC710R2KNPT	14.33	1.38	4.53	0.39	55	1.34	3/8	0.49	0.10X01.3	3.39	0.43	3.84	0.79	0.55	M10	1.46	9.96	4.53	1.97	0.47	0.98	1/2
8	750768C	RMC810R2KNPT	16.26	1.38	5.51	0.39	70	1.85	3/8	0.49	0.10X01.3	4.25	0.51	4.27	0.98	0.59	M12	1.57	11.42	5.31	2.56	0.71	0.98	3/4
2	750769C	RMC212R2KNPT	7.60	1.46	4.53	0.47	55	1.26	1/2	0.69	R10	3.39	0.43	3.88	0.79	0.55	M12	1.46	3.23	4.53	1.97	0.39	1.26	3/8
3	750770C	RMC312R2KNPT	9.06	1.46	4.53	0.47	55	1.26	1/2	0.69	R10	3.39	0.43	3.88	0.79	0.55	M12	1.46	4.69	4.53	1.97	0.39	1.26	3/8
4	750771C	RMC412R2KNPT	10.51	1.46	4.53	0.47	55	1.26	1/2	0.69	R10	3.39	0.43	3.88	0.79	0.55	M12	1.46	6.14	4.53	1.97	0.39	1.26	3/8
5	750772C	RMC512R2KNPT	12.52	1.46	5.51	0.47	70	1.65	1/2	0.69	R10	4.25	0.51	4.31	0.98	0.59	M12	1.57	7.72	5.31	2.56	0.47	1.26	1/2
6	750773C	RMC612R2KNPT	15.20	1.54	6.69	0.47	90	2.13	1/2	0.69	R10	5.20	0.67	4.80	1.18	0.63	M12	1.77	9.72	6.30	3.35	0.71	1.26	3/4
7	750774C	RMC712R2KNPT	16.73	1.54	6.69	0.47	90	2.13	1/2	0.69	R10	5.20	0.67	4.80	1.18	0.63	M12	1.77	11.26	6.30	3.35	0.71	1.26	3/4
8	750775C	RMC812R2KNPT	18.27	1.54	6.69	0.47	90	2.13	1/2	0.69	R10	5.20	0.67	4.80	1.18	0.63	M12	1.77	12.80	6.30	3.35	0.71	1.26	3/4
2	750776C	RMC218R2KNPT	8.66	1.69	5.51	0.71	70	1.50	3/4	0.94	R14	4.25	0.51	4.43	0.98	0.59	M12	1.57	3.86	5.31	2.56	0.39	1.46	3/8
3	750777C	RMC318R2KNPT	10.35	1.69	5.51	0.71	70	1.50	3/4	0.94	R14	4.25	0.51	4.43	0.98	0.59	M12	1.57	5.55	5.31	2.56	0.39	1.46	3/8
4	750778C	RMC418R2KNPT	12.05	1.69	5.51	0.71	70	1.50	3/4	0.94	R14	4.25	0.51	4.43	0.98	0.59	M12	1.57	7.24	5.31	2.56	0.39	1.46	3/8
5	750779C	RMC518R2KNPT	14.84	1.77	6.69	0.71	90	2.20	3/4	0.94	R14	5.20	0.67	4.92	1.18	0.63	M12	1.77	9.37	6.30	3.35	0.71	1.46	3/4
2	750780C	RMC225R2KNPT	10.08	2.05	6.69	0.98	90	1.97	1	1.26	R19	5.20	0.67	5.06	1.18	0.63	M14	1.77	4.61	6.30	3.35	0.47	1.69	1/2
3	750781C	RMC325R2KNPT	12.13	2.05	6.69	0.98	90	1.97	1	1.26	R19	5.20	0.67	5.06	1.18	0.63	M14	1.77	6.65	6.30	3.35	0.47	1.69	1/2
4	750782C	RMC425R2KNPT	14.17	2.05	6.69	0.98	90	1.97	1	1.26	R19	5.20	0.67	5.06	1.18	0.63	M14	1.77	8.70	6.30	3.35	0.47	1.69	1/2
5	750783C	RMC525R2KNPT	17.32	2.17	7.48	0.98	105	2.72	1	1.26	R19	5.91	0.67	5.41	1.18	0.63	M14	2.05	11.38	7.48	3.94	0.71	1.69	3/4
2	750784C	RMC231R2KNPT	11.30	2.40	7.48	1.22	105	2.24	1-1/4	1.44	R22	5.91	0.67	5.53	1.18	0.63	M14	2.05	5.35	7.48	3.94	0.47	2.17	1/2
3	750785C	RMC331R2KNPT	13.70	2.40	7.48	1.22	105	2.24	1-1/4	1.44	R22	5.91	0.67	5.53	1.18	0.63	M14	2.05	7.76	7.48	3.94	0.47	2.17	1/2
4	750786C	RMC431R2KNPT	16.10	2.40	7.48	1.22	105	2.24	1-1/4	1.44	R22	5.91	0.67	5.53	1.18	0.63	M14	2.05	10.16	7.48	3.94	0.47	2.17	1/2
5	750787C	RMC531R2KNPT	20.87	2.64	9.06	1.22	140	3.43	1-1/4	1.44	R22	7.24	0.67	6.28	1.18	0.79	M16	2.44	13.90	9.06	5.12	0.71	2.17	3/4

HSMC Series Multi-Port Rotary Union Dimensional Diagram

No. of Ports	Part No.	Desc.	A	B	C	D	V	F	G (NPT)	H	Ref. O-ring	I	J	K	L	M	N	O	P	Q	R	T
2	750889C	RMC206RVRKNPT	5.89	1.04	3.15	0.24	35	0.87	1/8	0.35	06X01.5	2.36	0.35	3.05	0.59	0.39	M8	1.26	2.26	3.15	1.18	0.71
3	750809C	RMC306RVRKNPT	6.93	1.04	3.15	0.24	35	0.87	1/8	0.35	06X01.5	2.36	0.35	3.05	0.59	0.39	M8	1.26	3.31	3.15	1.18	0.71
4	750810C	RMC406RVRKNPT	7.97	1.04	3.15	0.24	35	0.87	1/8	0.35	06X01.5	2.36	0.35	3.05	0.59	0.39	M8	1.26	4.35	3.15	1.18	0.71
2	750811C	RMC208RVRKNPT	6.77	1.22	3.94	0.31	40	0.94	1/4	0.47	R6A	2.83	0.43	3.54	0.79	0.47	M10	1.26	2.87	3.54	1.38	0.87
3	750812C	RMC308RVRKNPT	7.99	1.22	3.94	0.31	40	0.94	1/4	0.47	R6A	2.83	0.43	3.54	0.79	0.47	M10	1.26	4.09	3.54	1.38	0.87
4	750813C	RMC408RVRKNPT	9.21	1.22	3.94	0.31	40	0.94	1/4	0.47	R6A	2.83	0.43	3.54	0.79	0.47	M10	1.26	5.31	3.54	1.38	0.87
2	750814C	RMC210RVRKNPT	6.93	1.30	3.94	0.39	40	0.94	3/8	0.49	010X01.3	2.83	0.43	3.58	0.79	0.47	M10	1.26	3.03	3.54	1.38	0.98
3	750815C	RMC310RVRKNPT	8.23	1.30	3.94	0.39	40	0.94	3/8	0.49	010X01.3	2.83	0.43	3.58	0.79	0.47	M10	1.26	4.33	3.54	1.38	0.98
4	750816C	RMC410RVRKNPT	9.53	1.30	3.94	0.39	40	0.94	3/8	0.49	010X01.3	2.83	0.43	3.58	0.79	0.47	M10	1.26	5.63	3.54	1.38	0.98

HPMC Series Performance Charts

HSMC Series Performance Charts

Rotary Union Design

While rotating joints come in many shapes, sizes, and configurations, they always have the same four basic components: housing, a shaft, a bearing (or bearings) and a seal.

Mechanical Seal

The heart of the Rotary Union or rotary joint is the seal.

The seal prevents the medium (water, oil, air, etc) from leaking outside the Rotary Union while the Rotary Union is in operation.

Bearing

The second most important part of the Rotary Union is the bearing. A Rotary Union may have only one bearing or multiple bearings.

Roller bearings, such as ball bearings and tapered roller bearings, or non-roller bearings, like graphite bearings and bronze bushings, may be used in the Rotary Union.

The bearings are always used to allow a part of the joint, either the shaft or the housing, to rotate.

Shaft

Housing

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Lifting Equipment

Height Safety Equipment

"HPMC/HSMC Series" Rotary Union

Multi port rotary union designed for high speed or high pressure applications.

HPMC/HSMC Series Rotary Union

HPMC Series Muti-Port Rotary Union Dimensional Diagram

HSMC Series Multi-Port Rotary Union Dimensional Diagram

HPMC Series Performance Charts

HSMC Series Performance Charts

Rotary Union Design

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HPMC/HSMC Series Rotary Union

HPMC Series Muti-Port Rotary Union Dimensional Diagram

HSMC Series Multi-Port Rotary Union Dimensional Diagram

HPMC Series Performance Charts

HSMC Series Performance Charts

Rotary Union Design

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