Rotary Union

ROTART UNIONS

Reliable Rotary Union Solutions for Industrial Applications

🔹 Overview

Rotary unions are crucial components that transfer fluids, air, or gases between stationary and rotating parts in machinery. They are widely used in industries such as manufacturing, automotive, aerospace, food processing, and paper production, ensuring seamless and efficient fluid transfer.

🔹 Why Choose Rotary Unions?

✔ Leak-Free Operation: Designed for reliable and consistent fluid transfer without leaks.
✔ Durability & Strength: Built with robust materials like stainless steel, brass, and carbon graphite.
✔ Enhanced Equipment Performance: Ensures smooth operation of rotating systems and reduces downtime.
✔ High Efficiency: Optimized designs reduce friction, wear, and energy consumption.
✔ Versatile Applications: Used in printing, textiles, plastics, HVAC, and industrial automation.

Types of Rotary Unions

🔹 Hydraulic & Pneumatic Rotary Unions

⚙️ Hydraulics Rotary Union (AFS-78, AFS-83) – Designed for high-pressure hydraulic systems.
⚙️ Air Hydraulic Rotary Union (AFS-79, AFS-83) – Handles both air and hydraulic media.
⚙️ Duo Plex (Air & Hydraulic) Rotary Union (AFS-112) – Suitable for dual-media transfer in pneumatic and hydraulic systems.

🔹 Thermal & High-Temperature Rotary Unions

⚙️ Hot Oil Rotary Union (AFS-127, AFS-130) – Withstands extreme temperatures in hot oil applications.
⚙️ Steam and Hot Oil Rotary Union (AFS-113) – Specifically made for steam and oil-based heat transfer applications.

🔹 Multi-Passage & Multi-Purpose Rotary Unions

⚙️ 4-Passage Multi-Purpose Rotary Union (AFS-142) – Supports multiple fluid or gas transfers at once.
⚙️ Double Passage Rotary Union (AFS-111) – Allows simultaneous fluid transfer in two channels.
⚙️ Duo Plex and Low SP Rotary Union (AFS-112) – Ideal for low-pressure applications with dual transfer needs.

🔹 Material-Specific Rotary Unions

⚙️ Stainless Steel Rotary Union (AFS-53) – Corrosion-resistant, ideal for food, pharma, and chemical industries.
⚙️ Rotary Union for Rubber & Plastic Industry (AFS-115) – Built for rubber and plastic manufacturing processes.

🔹 Cartridge Rotary Unions

⚙️ Cartridge Water Rotary Union (AFS-110) – Specifically for water-based applications, compact and efficient.

🔹 General-Purpose Rotary Unions

⚙️ All-Purpose Rotary Union (AFS-04) – Suitable for general industrial use.
⚙️ Rotary Unions (Standard Models) (AFS-02, AFS-03) – Basic sealing solutions for various industrial rotating components.

🔹 CNC & VMC Coolant Rotary Unions

⚙️ VMC Coolant Rotary Unions (AFS-138A, AFS-138B, AFS-138C, AFS-138D) – Designed for coolant systems in CNC and VMC machines.

How Rotary Union Works ?

Our Rotary Union Products

Rotary Unions

Inquire about individual solutions

We develop and produce customer-specific special and individual solutions for every application.

Contact an expert Show case studies
ROTARY UNION - AFS 02Model 55-555Model 655Model 55-255Model 355Model 525-555
Maximum Water Pressure750 PSI / 50 bar600 PSI / 41 bar---
Maximum Saturated Steam Pressure (Intermittent)15 PSI / 1 bar----
Maximum Hot Oil Pressure100 PSI / 6.6 bar----
Maximum Speed NPT Threads1,500 RPM / 1,500/min750 RPM / 750/min---
Maximum Speed Straight Threads3,500 RPM / 3,500/min750 RPM / 750/min3,500 RPM / 3,500/min3,000 RPM / 3,000/min2,500 RPM / 2,500/min

Temperature : 250°FMaterial : CI, Brass and SS+Aluminium

Product Image
ROTARY UNION - AFS 03Model 57-557Model 657Model 57-257Model 357Model 527-557
Maximum Water Pressure150 PSI / 10 bar----
Maximum Speed NPT Threads1,500 RPM / 1,500/min750 RPM / 750/min---
Maximum Speed Straight Threads-750 RPM / 750/min3,500 RPM / 3,500/min3,000 RPM / 3,000/min2,500 RPM / 2,500/min

Temperature : 200°FMaterial : CI, Brass and SS+Aluminium

ALL PURPOSE ROTARY UNION - AFS 04Value
Maximum Water Pressure200 PSI / 14 bar
Maximum Saturated Steam Pressure (Intermittent)15 PSI / 1 bar
Maximum Speed750 RPM / 750/min
Torque at 120 PSI/8.2 bar4 ft.lbs. / 5.4 Nm

Temperature : 250°FMaterial : CI, Brass and SS+Aluminium

ROTARY UNION (FOR RUBBER AND PLASTIC INDUSTRY) - AFS 115Value
Maximum Water Pressure150 PSI / 10 bar
Maximum Saturated Steam Pressure (Intermittent)15 PSI / 1 bar
Maximum Speed500 RPM / 500/min
Torque @ 150 PSI/10bar6 ft.lbs. / 8.2 Nm

Temperature : 250°FMaterial : CI, Brass and SS+Aluminium

ROTARY UNION (FOR RUBBER AND PLASTIC INDUSTRY) - AFS 115Value
Maximum Water Pressure150 PSI / 10 bar
Maximum Saturated Steam Pressure (Intermittent)15 PSI / 1 bar
Maximum Speed500 RPM / 500/min
Torque @ 150 PSI/10bar6 ft.lbs. / 8.2 Nm

Temperature : 250°FMaterial : CI, Brass and SS+Aluminium

CARTIDGE WATER ROTARY UNION - AFS -110Value
Maximum Water Pressure150 PSI / 10 bar
Maximum Speed750 RPM / 750/min
Torque for Model 62004 ft.lbs / 5.4 Nm
Torque for Model 62507 ft.lbs / 9.5 Nm
Torque for Model 63008 ft.lbs / 10.9 Nm
Torque for Model 640010 ft.lbs / 13.6 Nm

Temperature : 200°FMaterial : CI, Brass and SS+Aluminium

CARTIDGE WATER ROTARY UNION - AFS -110Value
Maximum Steam Pressure250 PSI / 17 bar
Maximum Steam Temperature400°F / 200°C
Maximum Hot Oil Pressure100 PSI / 7 bar
Maximum Speed750 RPM / 750/min
Maximum Hot Oil Temperature450°F / 232°C

Temperature : 200°FMaterial : CI, Brass and SS+Aluminium

STEAM AND HOT OIL ROTARY UNION - AFS -113Value
Maximum Saturated Steam Pressure*150 PSI / 10 bar
Maximum Saturated Steam Temperature365°F / 185°C
Maximum Hot Oil Pressure*100 PSI / 7 bar
Maximum Speed*400 RPM / 400/min
Maximum Hot Oil Temperature450°F / 232°C

Material : CI and SS

AIR HYDRAULLIC ROTARY UNION - AFS -79 - AFS -83Value
Maximum Air Pressure150 PSI / 10 bar
Maximum Vacuum28" Hg / 6.7 kPa
Maximum Hydraulic Pressure Model 10051,000 PSI / 70 bar
Maximum Hydraulic Pressure Model 11021,000 PSI / 70 bar
Maximum Hydraulic Pressure Model 1115500 PSI / 34 bar
Maximum Hydraulic Pressure Model 1205750 PSI / 50 bar
Maximum Hydraulic Pressure Model 2200*1,000 PSI / 70 bar
Maximum Speed NPT Threads1,500 RPM / 1,500/min
Maximum Speed Straight Threads3,500 RPM / 3,500/min
Maximum Temperature250°F / 120°C

Material : Aluminium

DOUBLE PASSAGE ROTARY UNION - AFS -111Value
MediaSee table
FiltrationISO 4406 Class 17/15/12, max. 60 micron
Maximum Speed7,000 min-1 / 7,000 rpm
Maximum PressureSee table
Maximum Flow69 l/min / 18.2 gpm (per passage)
Maximum Temperature160°F / 71°C

Material : SS and Aluminium

DUO PLEX (AIR AND HYDRAULLIC) ROTARY UNION - AFS -112Value
Maximum Air Pressure (1590)*150 PSI / 10 bar
Maximum Hydraulic Pressure (1579)**1,000 PSI / 70 bar
Maximum Vacuum (1590)28" Hg / 6.7 kPa
Maximum Speed1,500 RPM / 1,500/min
Maximum Temperature250°F / 120°C

Material : SS and Aluminium

DUO PLEX AND LOW SP ROTARY UNION - AFS -112Value
Maximum Air Pressure150 PSI / 10 bar
Maximum Vacuum Pressure28" Hg / 6.7 kPa
Maximum Hydraulic Pressure*3,000 PSI / 207 bar
Maximum Speed*250 RPM / 250/min
Torque for Model 16907 ft.lbs / 9.5 Nm
Torque for Model 179018 ft.lbs / 24 Nm
Torque for Model 189022 ft.lbs / 29.8 Nm
Maximum Temperature250°F / 120°C
STAINLESS STEEL ROTARY UNION - AFS - 53Value
Maximum Pressure and Maximum SpeedSee Diagram
Maximum Speed NPT1,500 RPM / 1,500/min
4 PASSAGE MULTI PURPOSE ROTARY UNION - AFS -142Value
Maximum Air Pressure*150 PSI / 10 bar
Maximum Hydraulic Pressure*850 PSI / 60 bar
Maximum Vacuum28" Hg / 6.7 kPa
Maximum Speed250 RPM / 250/min
HOT OIL ROTARY UNION - AFS -127 - AFS -130Value
Maximum Steam Pressure250 PSI / 17 bar
Maximum Steam Temperature400°F / 200°C
Maximum Hot Oil Pressure100 PSI / 7 bar
Maximum Speed750 RPM / 750/min
Maximum Hot Oil Temperature450°F / 232°C
HYDRAULICS ROTARY UNION - AFS -78 - AFS -83Value
Maximum Air Pressure150 PSI / 10 bar
Maximum Vacuum Pressure28" Hg / 6.7 kPa
Maximum Hydraulic Pressure*3,000 PSI / 207 bar
Maximum Speed*250 RPM / 250/min
Torque for Model 16907 ft.lbs / 9.5 Nm
Torque for Model 179018 ft.lbs / 24 Nm
Torque for Model 189022 ft.lbs / 29.8 Nm
Maximum Temperature250°F / 120°C
VMC COOLENT ROTARY AFS – 138 AValue
Coolant Max. Pressure140 bar
Coolant Max. Temperature121°C
RPM2000-10000
VMC COOLENT ROTARY AFS – 138 BValue
Coolant Max. Pressure140 bar
Coolant Max. Temperature121°C
RPM2000-10000
VMC COOLENT ROTARY AFS – 138 CValue
Coolant Max. Pressure140 bar
Coolant Max. Temperature121°C
RPM2000-10000
VMC COOLENT ROTARY AFS – 138 DValue
Coolant Max. Pressure140 bar
Coolant Max. Temperature121°C
RPM2000-10000