Complete solution from one source!

About Rotary Joints & Rotary Unions

A ROTARY JOINT, ALSO REFERRED TO AS A ROTARY UNION OR ROTATING UNION, IS A ROTARY SEALING DEVICE THAT CONNECTS ROTATING EQUIPMENT TO FIXED PIPING FOR THE TRANSFER OF STEAM, WATER, THERMAL OIL, COOLANT, HYDRAULIC OIL, AIR, AND OTHER MEDIA. ROTARY UNIONS CAN BE DESIGNED WITH MULTIPLE PASSAGES AND MANAGE MULTIPLE MEDIA TYPES SIMULTANEOUSLY. IN THESE CASES, A SOFT SEAL SUCH AS AN O-RING IS USED TO PREVENT THE FLUIDS FROM “CROSSINGOVER” INTO ANOTHER PASSAGE. SOFT SEAL MULTI-PASSAGE ROTARY UNIONS ARE USED IN A VARIETY OF INDUSTRIES AND APPLICATIONS INCLUDING OIL AND GAS, FOOD AND BEVERAGE, AEROSPACE, ROBOTICS, AND MEDICAL DEVICES. IN SOME APPLICATIONS, THE ROTARY UNION IS FITTED WITH SLIP RINGS FOR TRANSMITTING ELECTRICAL SIGNALS AS WELL AS HYDRAULIC POWER.

WITH CONVENTIONAL ROTARY JOINTS, A SPRING-LOADED SEAL IS USED TO KEEP THE FLUID OR GAS MEDIUM FROM BEING DISPERSED INTO THE ATMOSPHERE. THE SPRING IS USED IN THE ROTARY JOINT TO MAINTAIN THE INITIAL INTERNAL SEATING, AND THE ROTARY JOINT IS PRESSURE-SEALED ONCE IN OPERATION. LOW-PRESSURE OR VACUUM SERVICE RELIES ON THE SPRING FORCE TO CREATE THE SEAL. CONVENTIONAL ROTARY JOINTS ARE EITHER SELF-SUPPORTED WITH THE USE OF AN INTERNAL CARBON GUIDE, OR EXTERNAL-SUPPORTED USING RODS OR A MOUNTING BRACKET.

ROTARY JOINTS ARE REQUIRED TO TRANSFER FLUIDS FROM STATIONARY TO ROTATING MACHINE PARTS IN ALMOST ALL INDUSTRIES .SOME APPLICATIONS ARE SIMPLE TO SOLVE WITH STANDARD ROTARY UNION AND ROTARY JOINT SOLUTIONS. IN SOME COMPLEX APPLICATIONS SUCH AS MACHINE TOOLS , THE PERFORMANCE OF THE MACHINE DEPENDS ALMOST ON THE CORRECT SELECTION OF THE ROTARY JOINT / ROTARY UNION.

‘FOURWENTS’ OFFERS A COMPLETE RANGE OF ROTARY UNIONS / ROTARY JOINTS / WORLDS LARGEST DIA METER ROTARY JOINTS ( SIZE 4” INCH TO 20” INCH DIA METER), ATS & OTS ROTARY UNIONS, ROTOR SEALS, ROTO PACKS, FLEXI BALL & ROTARY BALL TYPE BALL JOINTS, SWIVEL JOINTS AND SEALING SYSTEM TO SUIT INDIVIDUAL CUSTOMER SPECIFICATIONS.

Whole words of ‘Fourwents’ Rotary Joint / Rotary Union / Rotary Seals

FDU Series

The whole world of ‘Fourwents’ FDU Series water & general purpose standard & specific rotary joints / Rotary Unions

Media:
Cooling water, Hot Water / Steam & Hot Oil.
Read More

FMU Series

THE WHOLE WORLD OF ‘FOURWENTS’ FMU SERIES ROTARY JOINTS /ROTARY UNIONS

Media:
WATER, HOT WATER, STEAM, THERMAL / HOT OIL APPLICATIONS
Read More

FJU Series

THE WHOLE WORLD OF ‘FOURWENTS’ FJU SERIES ROTARY JOINTS / ROTARY UNIONS

Media:
WATER, HOT WATER, STEAM, THERMAL OIL / HOT OIL APPLICATIONS UNDER TEMPERATURE, SPEED, (ROTATION) AND PRESSURE.
Read More

Iron, Steel, Metal & Mining Industries

THE WHOLE WORLD OF ‘FOURWENTS’ FDU-CCM SERIES, ATS SERIES & LADEL TURRET SERIES ROTARY JOINTS / ROTARY UNIONS / ROTO UNITS SUITABLE FOR CONTINUOUS CASTING MACHINES (CCM)

Media:
COOLANT, WATER, HOT WATER, OIL, GAS, VACUUM, AIR HYDRAULIC FLUIDS, GREASE, OXYGEN, ARGON ETC.
Read More

Ash Coolers Special

THE WHOLE WORLD OF ‘FOURWENTS’ ASH COOLERS SPECIAL ROTARY JOINTS / ROTARY UNIONS FOR ASH COOLERS IN THERMAL POWER PLANT APPLICATIONS...

Media:
COOLING WATER, WATER, HOT WATER, STEAM, AIR, VACUUM, HYDRAULIC, GASES, HOT HEAT - TRANSFER - OILS, VAPORS & OTHER LIQUID MEDIA
Read More

Wind Turbine & Wind Mills

'FOURWENTS’ FMP-WT SERIES HIGH PRESSURE HYDRAULIC ROTATING UNIONS FOR WIND TURBINES / WIND MILLS

Media:
MAINLY HIGH PRESSURE HYDRAULIC APPLICATIONS.
Read More

Flexi-Ball & Rotary-Ball Type Ball Joints & Swivel Joints

‘FOURWENTS’ FLEXI-BALL & ROTARY-BALL TYPE BALL JOINTS & SWIVEL JOINTS

Media:
STEAM, WATER, CHEMICALS, PETROLEUM, LPG/LNG, OXYGEN, LIQUIDS, BEVERAGES, DRY BULKS, LIQUID AMMONIA, OIL EXTRACTION SYSTEMS, SOLAR POWER PARABOLIC TROUGH SYSTEMS, REGENERATIVE AIR, PRE-HEATERS OF STEAM GENERATING BOILERS, THERMAL POWER PLANTS AND MANY MORE....
Read More

Swivel Joints & Loading-Unloading Arms

‘FOURWENTS’ SWIVEL JOINTS & LOADING-UNLOADING ARMS

Media:
STEAM, WATER, CHEMICALS, PETROLEUM, LPG/LNG, OXYGEN, LIQUIDS, BEVERAGES, DRY BULKS, LIQUID AMMONIA, OIL EXTRACTION SYSTEMS, SOLAR POWER PARABOLIC TROUGH SYSTEMS, REGENERATIVE AIR, PRE-HEATERS OF STEAM GENERATING BOILERS, THERMAL POWER PLANTS AND MANY MORE....
Read More

LRJ Series

THE WHOLE WORLD OF ‘FOURWENTS’ FDU SERIES WORLDS LARGEST ROTARY JOINTS / ROTARY UNIONS IN LARGE DIAMETERS ( SIZE: 4” TO 20”)

Media:
HOT WATER, STEAM & HOT OIL
Read More

FDU-CS, AHS, FGU & FB Series

THE WHOLE WORLD OF ‘FOURWENTS’ FDU-CS, AHS,FGU & FB SERIES ROTARY JOINTS / ROTARY UNIONS / ROTAR SEALS FOR AIR HYDRAULIC & MACHINE TOOLS COOLANT APPLICATIONS

Media:
COOLANT, WATER, AIR, HYDRAULIC FLUIDS, GASES AND VACUUM
Read More

Multi Passage

THE WHOLE WORLD OF ‘FOURWENTS’ MULTIPASSAGE / MULTI PORT/ MULTI CHANNELS ROTARY UNIONS / ROTARY JOINTS / ROTARY INLETS / ROTARY DISTRIBUTORS FLOW PASSAGE OPTIONS 1 TO 24 PORTS / PASSAGE / CHANNELS

Media:
AIR, COOLANT, WATER, GASES, STEAM, & OIL APPLICATIONS
Read More

Textile Applications

‘FOURWENTS’ FJU, FBU, FDU & FMU SERIES ROTARY JOINTS / ROTARY UNIONS SUITABLE FOR TEXTILE INDUSTRIES

Media:
HOT WATER, STEAM & HOT OIL
Read More

Man Made Textil Fiber Textile Industries

‘FOURWENTS’ ROTARY JOINTS / ROTARY UNIONS SUITABLE FOR MAN MADE FIBER TEXTILE INDUSTRIES IN... POLYESTER STAPLE FIBER LINES (PSF) HIGH SPEED STAPLE FIBER LINES- CONTINOUS PROCESS MELT SPINNING & DRAW LINES - POLYESTER / POLYPROPYLENE DRAW STANDS, ANNEALER & CALENDERS PTA / CTA / TA / CVD DRYERS STEAM TUBE DRYERS POLYESTER FILAMENT LINES CRIMPERS & CUTTERS POY WINDERS & SPINNING PLANTS TYRE CORDS & INDUSTRIAL YARNS

Media:
STEAM WATER, HOT WATER, COOLANT, AIR, VACUUM, HYDRAULIC, GASES, HOT HEAT TRANSFER OILS, VAPORS & OTHER LIQUIDS OR MEDIA.
Read More

Accessories For Rotary Joints / Unions

'FOURWENTS’ ACCESSORIES FOR ROTARY JOINTS / ROTARY UNIONS SEALING PRODUCTS / COMPONENTS, VACUUM VALVES / VACUUM BREAKS, SEALING GASKETS, FLEXIBLE HOSE ASSEMBLIES ETC.
Read More

‘Fourwents’ Rotary unions are equivalent to fit against various brands of the world

PROVIDING PREMIUM QUALITY PRODUCTS & SERVICES