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Custom Rotary Timing Valves & Rotary Unions

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Custom Solutions


We've been providing custom solutions since 1960.
You can say it's what we do best!

SRS specializes in complete custom rotary timing valve and rotary union product design and manufacturing for a wide range of industries.

We've worked closely with our customers to engineer over 1,000 custom designs over the past five decades.

Custom Rotary Union: R-604

Rotary Union

R-604

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  • Industry: Semiconductor
  • Material: Stainless Steel
  • Media: Water
  • Info: Designed for water service with direct integration into customer equipment shaft.
Custom Rotary Union: R-460

Rotary Union

R-460

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  • Industry: Industrial Automation
  • Material: Coated Steel & Anodized Aluminum
  • Media: Air/Vacuum
  • Info: Designed for direct integration into a custom brazing machine. Unit supplies high speed vacuum service to the work station during the brazing process.
Custom Rotary Union: R-523

Rotary Union

R-523

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  • Industry: Aerospace & Defense
  • Material: Passivated 316 Stainless Steel
  • Media: Chilled Water
  • Info: Designed for a large military radar cooling system.
Custom Rotary Union: R-650

Rotary Union

R-650

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  • Industry: Industrial Automation
  • Material: Anodized Aluminum
  • Media: Air, Helium & Vacuum
  • Info: Designed for an automotive component testing system for improving vehicle safety. Components are pressurized with air and helium to verify any leakage. Vacuum is used to extract the air and helium post verification.
Custom Rotary Union: R-649

Rotary Union

R-649

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  • Industry: Packaging & Processing
  • Material: Anodized Aluminum, Stainless Steel
  • Media: Air, Vacuum
  • Info: Designed for an automated packaging application for plastic lid capping of various consumer products. SRS’s space-saving design provides optimal pneumatic and vacuum service during rotary capping operations.
Custom Rotary Union: R-633

Rotary Union

R-633

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  • Industry: Industrial Automation
  • Material: Coated Steel
  • Media: Air
  • Info: Designed for a plastic shredder application used in a plastic recycling process. Unit provides pneumatic clamping and unclamping needed for the system's grinding wheel.
Custom Rotary Union: R-513

Rotary Union

R-513

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  • Industry: Molded Plastic
  • Material: Stainless Steel
  • Media: Nitrogen
  • Info: Designed for a blow molding application for plastic bottle cap production.
Custom Rotary Union: R-352

Rotary Union

R-352

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  • Industry: Packaging & Processing
  • Material: Anodized Aluminum
  • Media: Air
  • Info: Designed for a laundry detergent bottle packaging application. Unit features one rotating inlet to (12) outlets.
Custom Rotary Union: R-654

Rotary Union

R-654

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  • Industry: Industrial Automation
  • Material: Carbon Steel with TDC & Black Oxide
  • Media: Hydraulic Oil
  • Info: Designed for a cooling system for a dynamometer testing application.
Custom Rotary Union: R-640

Rotary Union

R-640

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  • Industry: Oil & Gas Drilling & Production
  • Material: Alloy Steel
  • Media: Hydraulic Oil
  • Info: Designed for an offshore umbilical hose reel application. SRS’s design provides reliable hydraulic service to remotely operated equipment for subsea trenching operations.
Custom Rotary Union: R-597

Rotary Union

R-597

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  • Industry: Packaging & Processing
  • Material: Stainless Steel
  • Media: Nitrogen, Vacuum, Air, Propylene Carbonate
  • Info: Designed for an electrolyte vacuum filling machine for lithium ion battery manufacturing. SRS’s design integrates into a compact rotary dial table efficiently providing reliable service for filling cells with accurate amounts of electrolyte.
Custom Rotary Union: R-522

Rotary Union

R-522

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  • Industry: Molded Plastic
  • Material: Alloy Steel
  • Media: Hydraulic Oil
  • Info: Designed for a rubber molding application for the manufacturing of powersport tracks.
Custom Rotary Union: R-651

Rotary Union

R-651

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  • Industry: Packaging & Processing
  • Material: Steel, QPQ & Anodized Aluminum
  • Media: Air
  • Info: Designed for a pharmaceutical blending/drying application. Unit features a specialized insulating material used to coat the inside thru-bore preventing high-temperature air from being distributed into the union.
Custom Rotary Union: R-659

Rotary Union

R-659

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  • Industry: Molded Plastic
  • Material: Stainless steel with TDC
  • Media: Water
  • Info: Designed for a plastic injection mold cooling operation. Unit features a custom 9-port design and an enclosed electrical slip ring for data/power integration.
Custom Rotary Union: R-678

Rotary Union

R-678

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  • Industry: Industrial Automation
  • Material: Stainless steel with TDC
  • Media: Wood Stain
  • Info: Designed for a automated wood staining application for furniture production. Unit features a modified in-stock rotary union with specialized abrasive seals and a customer-specified mounting flange configuration.
Custom Rotary Union: R-680

Rotary Union

R-680

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  • Industry: Packaging & Processing
  • Material: Anodized Aluminum
  • Media: Vacuum
  • Info: Designed for an aerosol can filling application. Unit features a 8-flow path compact, lightweight design with a custom thru-bore and specialized o-ring face ports for direct integration into existing equipment.
Custom Rotary Union: R-689

Rotary Union

R-689

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  • Industry: Automotive
  • Material: Anodized Aluminum
  • Media: Air
  • Info: Designed for an on-the-fly tire pressure control system for off-road racing vehicles. Unit features a high speed, low friction design and a custom thru-bore for axle mount integration.
Custom Rotary Union: R-693

Rotary Union

R-693

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  • Industry: Automotive
  • Material: 316 Stainless Steel
  • Media: Diesel Exhaust
  • Info: Designed for a diesel exhaust gas analysis system, the rotary union acts as an in-line swivel in the hose, connecting the vehicle to the exhaust sample collection equipment. Unit features a specialized high-temperature sealing system capable of withstanding temperatures of up to 1600°F.
Custom Rotary Union: R-713

Rotary Union

R-713

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  • Industry: Oil & Gas
  • Material: 316 Stainless Steel
  • Media: Other
  • Info: Designed for an offshore hose reel system used for safe and secure liquid cargo transfer between ships and offshore platforms. Unit features integrated and roller bearings to handle side loading and a customer-specified flange connection for direct integration into the existing hose reel equipment.
Custom Rotary Union: R-673

Rotary Union

R-673

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  • Industry: Industrial Automation
  • Material: E-Nickel, Anodized Aluminum
  • Media: Air, Vacuum
  • Info: Designed for a robotic cleanroom automation system. Unit features a specialized extended shaft design for direct integration into customer equipment.
Custom Rotary Union: R-731

Rotary Union

R-731

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  • Industry: Building Construction
  • Material: Stainless Steel
  • Media: Water, Sewer Waste
  • Info: Designed to supply water and return sewer waste for a rotating residential building. Unit features a specialized extended shaft designed for direct integration into a customer-specified design.
Custom Rotary Union: R-730

Rotary Union

R-730

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  • Industry: Oil & Gas
  • Material: Stainless Steel
  • Media: Hydraulic Oil
  • Info: Designed to provide hydraulic pressure and flow to a subsea vehicle drive system. Unit features a specialized submersible design and accommodations for a directly integrated electrical slip ring.
Custom Rotary Union: R-702

Rotary Union

R-702

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  • Industry: Steel Production
  • Material: Stainless Steel
  • Media: Water, Air, Nitrogen, Lime
  • Info: Designed to enable tilting and cooling of a Basic Oxygen Furnace (BOF) charging bucket. The rotary union also supplies oxygen and lime to generate the reaction to produce steel and a water circuit for cooling the trunnion around the vessel. Unit features a 3-port system with an additional scavenging port that diverts lime away from the sealing areas of the rotary union for extended seal life.
Custom Rotary Union: R-751

Rotary Union

R-751

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  • Industry: Oil & Gas
  • Material: Stainless Steel
  • Media: Air, Seawater, Ethylene Glycol
  • Info: Designed to supply and return cooling water for a large offshore clutch application.

Complete In-house Production Capabilities:

  • Product Design & Support
  • FEA Simulation & Verification
  • Supply Chain Management
  • Precision CNC Machining
  • Complete Assembly & Inspection
  • Standard & Custom Testing

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