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"9000G Series" Rotary Union

Model:  9000G Series / SRU-4092

Type
Options
Part N° Description Repair Cartridge Nominal Pipe Size Shaft Thread (A) Guide Price Quantity
4092-T22151
480630C
R050P 481323C 1/4 1/4 Quote Required
4092-T22152
480632C
R150P 481325C 3/8 3/8 Quote Required
4092-T22153
480198C
R250P 481204C 1/2 1/2 Quote Required
4092-T22154
480247C
R350P 481208C 3/4 3/4 Quote Required
4092-T22155
430111C
R450P-8 471882C 1 1 Quote Required
4092-T22156
440581C
R9550P 471665C 1-1/4 1-1/4 Quote Required
4092-T22157
440165C
R9650P 471575C 1-1/2 1-1/2 Quote Required
4092-T22158
440469C
R9750P 471716C 2 2 Quote Required
4092-T22159
440577C
R9850P 471718C 2-1/2 2-1/2 Quote Required
4092-T22160
440505C
R9950P 471720C 3 3 Quote Required
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Rotary union designed for dirty media applications with the option for flange mounted units.

9000g Series Rotary Union

9000G Series Rotary Union

Features and Benefits

  • Superior Sealing Performance - Bellows Sealing System provides superior sealing performance throughout the wear life of the rotary union.
  • Designed for Dirty Media applications - Debris in contaminated media will not be captured in the Bellows Sealing System, which reduces clogging.
  • Maintenance Free - 9000G is maintenance free because thereis no rolling element bearing, therefore no lubrication is required.
  • High Temperature Applications - Offers the same design as the standard 9000 Series, but utilizes carbon graphite bearings for high temperature applications.
  • Ideal for High Temperatures - The thrust collar allows for thermal expansion, making this an ideal union for high temperature, general purpose applications.
  • Flanged mounted units available.

9000G Series Rotary Union Mono Flow Diagram

9000G Series Rotary Union Mono Flow Diagram

Nominal Pipe Size Shaft Thread (A) Right Hand Thread Left Hand Thread Inlet Thread (B) C D E F G O V W X Y
Part No. Desc. Repair Cartridge Part No. Desc. Repair Cartridge
1/4 1/4 480630C R050P 481323C 480629C L050P 481322C 1/4 4-3/8 1-3/4 1-1/8 2-9/16 1-1/16 - 1/4 5/8 - -
3/8 3/8 480632C R150P 481325C 480631C L150P 481324C 3/8 4-3/8 1-3/4 1-1/8 2-9/16 1-1/16 - 3/8 11/16 - -
1/2 1/2 480198C R250P 481240C 480197C L250P 481203C 1/2 5 2-3/8 1-1/2 2-3/4 1-1/4 - 1/2 15/16 - -
3/4 3/4 480247C R350P 481208C 480246C L350P 481207C 3/4 5-1/2 2-1/2 1-5/8 3 1-7/16 - 3/4 1-3/32 - -
1 1 430111C R450P-8 471882C 430110C L450P-8 471881C 1 6-1/8 3 1-3/4 3-3/8 1-3/4 - 1 1-11/32 - -
1-1/4 1-1/4 440581C R9550P 471665C 440580C L9550P 471664C 1-1/4 9-1/16 3-3/4 2-1/16 4-13/16 2-3/16 5/8 1-1/4 1-11/16 6-7/8 2
1-1/2 1-1/2 440165C R9650P 471575C 440164C L9650P 471576C 1-1/2 9-11/16 4-1/8 2-3/16 5-1/4 2-3/16 5/8 1-1/2 1-15/16 7-3/8 2-1/4
2 2 440469C R9750P 471716C 440468C L9750P 471715C 2 11-3/4 5-7/8 2-7/16 6-7/16 2-5/8 5/8 2 2-9/16 8-9/16 2-3/4
2-1/2 2-1/2 440577C R9850P 471718C 440576C L9850P 471717C 2-1/2 15-3/8 7-1/8 3-1/2 7-3/16 3-3/8 - 2-1/2 3 - -
3 3 440505C R9950P 471720C 440540C L9950P 471719C 3 15-3/4 7-1/8 3-7/8 8-5/16 3-7/8 - 3 3-5/8 - -

9000G Series Rotary Union Dual Flow Diagram

Nominal Pipe Size Shaft thread (A) Inlet (B) Outlet (J) Siphon K (NPSM) C D E F G H O S V W X Y
1/2 1/2 1/2 1/2 1/8 7-1/4 2-3/8 1-1/2 2-3/4 1-1/4 2-1/8 - 6 1/2 15/16 - -
3/4 3/4 3/4 1/2 1/4 7-3/4 2-1/2 1-5/8 3 1-7/16 2-3/8 - 6-3/8 3/4 1-3/32 - -
1 1 1 1/2 3/8 8-1/2 3 1-3/4 3-3/8 1-3/4 2-5/8 - 7-1/8 1 1-11/32 - -
1-1/4 1-1/4 1-1/4 1/2 1/2 10-5/8 3-3/4 2-1/8 4-13/16 2 3 5/8 8-7/8 1-1/4 1-11/16 6-7/8 2
1-1/2 1-1/2 1-1/2 3/4 3/4 11-3/8 4-1/8 2-3/16 5-1/4 2-3/16 3-1/4 5/8 9-9/16 1-1/2 1-15/16 7-3/8 2-1/4
2 2 2 1 3/4 13-7/8 5 2-7/16 6-1/2 2-5/8 4-1/16 5/8 11-1/2 2 2-9/16 8-9/16 2-3/4
2-1/2 2-1/2 2 1-1/4 1 16-7/8 6-1/2 3-1/2 7-1/4 3-3/8 5 - 14 2-1/2 3 - -
3 3 2-1/2 1-1/4 1-1/4 18-3/4 7-1/8 3-1/2 8-5/16 3-7/8 5-1/2 - 15-5/8 3 3-5/8 - -

9000G Series High Temperature Rotary Union Mono Flow Specifications

Nominal Pipe Size Shaft Thread (A) Right Hand Thread Left Hand Thread
Part Number Description Repair Cartridge Part Number Description Repair Cartridge
1/4 1/4 480630C R050P 481323C 480629C L050P 481322C
3/8 3/8 480632C R150P 481325C 480631C L150P 481324C
1/2 1/2 480198C R250P 481204C 480197C L250P 481203C
3/4 3/4 480247C R350P 481208C 480246C L350P 481207C
1 1 430111C R450P-8 471882C 430110C L450P-8 471881C
1-1/4 1-1/4 440581C R9550P 471665C 440580C L9550P 471664C
1-1/2 1-1/2 440165C R9650P 471575C 440164C L9650P 471576C
2 2 440469C R9750P 471716C 440468C L9750P 471715C
2-1/2 2-1/2 440577C R9850P 471718C 440576C L9850P 471717C
3 3 440505C R9950P 471720C 440504C L9950P 471719C

9000G Series High Temperature Rotary Union Dual Flow

Nominal Pipe Size Shaft Thread (A) Right Hand Thread Left Hand Thread
Part Number Description Repair Cartridge Part Number Description Repair Cartridge
1/2 1/2 480204C R250S 481204C 480203C L250S 481203C
3/4 3/4 480253C R350S 481208C 480252C L350S 481207C
1 1 430113C R450S-8 471882C 430112C L450S-8 471881C
1-1/4 1-1/4 440583C R9550S 471665C 440582C L9550S 471664C
1-1/2 1-1/2 440167C R9650S 471575C 440166C L9650S 471576C
2 2 440471C R9750S 471716C 440470C L9750S 471715C
2-1/2 2-1/2 440579C R9850S 471718C 440578C L9850S 471717C
3 3 440507C R9950S 471720C 440506C L9950S 471719C

9000G Series Rotary Union Performance Chart

Performance Charts
Rotary Union Design

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.


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