DESIGN AND DEVELOPMENT
Rotaflow designs and manufactures high quality swivel joints for a
wide range of applications in the chemical, oil, processing and food
industries. Swivel joints are a key element in loading arms,
rotating drums and filters and for relieving torque in hoses.
The patented design of Rotaflow swivel joints allows 360° rotation
under pressure without leakage. The combination of the bearing
system and seal design gives the joints the potential of three to
four times the life of a swivel joint that uses only ball bearings.
With a clear bore, any fluid passing down a pipe will also pass
through a Rotaflow swivel joint without restricting the flow
SERIES SWIVEL JOINTS
The ‘F’ series of swivel
joints in hardened carbon steel or ‘FS’ series in 316 stainless
steel is designed for small bore applications from ¼” to 2” (DN6 to
50). These joints can be supplied for applications up to 6000 psi
(410 bar) and are available in straight and 90° styles with a choice
of seals for maximum fluid compatibility.
The SK Series features Rotaflow’s unique needle roller system and
wide spaced bearings, to give a robust and reliable design. This
range is ideal for process plant applications, wash system designs,
slowly rotating drums, filters and applications where offset loads
are a problem. The large block seal allows free movement with low
SK swivel joints are designed to work are pressures above 1000 psi
(70 bar) and a swivel speed of up to 60 rpm. They are available in
sizes 1” – 20” (DN25 to 500), with a choice of seals to suit
different operating conditions and fluids.
Rotaflow also has combined servomotor technology with the SK series
to produce compact and powerful drive units for the piping industry.
These units rotate pipework whilst carrying fluid under pressure and
be used in drum rotators, automated loading systems, robotics, food
processing and water jetting. They can also be tailored to suit high
pressure, IP rated and hygienic requirements.
Rotaflow Multiport systems allow two or more individual flows down a
common axis. The systems have a robust design which is suitable for
handling high mechanical loads. Each joint is individually designed
to suit specific applications and available in a choice of materials
We design and manufacture swivel joints in all materials in larger
diameters. Shown is part of our range from 20” (DN500) upward.
Rotaflow Swivel joints carry fluid through a clear bore under
pressure without leakage whilst rotating through 360°.
Loading arms are used to convey fluid from a static vessel to a
moving container without leakage and consist of a combination of
pipework and swivel joints. The range features Rotaflow’s unique SK
swivels and wide spaced bearings to give a strong yet flexible arm
The joints rotate through 360° and are designed to give full bore
flow. The high radial load carrying capacity allows the swivel to
relieve torque in hoses and gives greater strength in cantilever
To ensure the ideal solution for each application, all loading arms
are tailor made to individual requirements and can incorporate many
additional features, with seals for virtually any fluid.
Technical advice and stress analysis calculations available.
Joints for hygienic use are manufactured in 316 stainless steel with
PTFE main seals and compatible lubrication. Whilst no swivel joint
is completely FDA approved, customer feedback on this design is very
positive. The Rotaflow Swivel Joint, with an unrestricted bore,
easily modifies for use with o/d tube or RJT/IDF end fittings.
TESTED TO THE HIGHEST STANDARDS
Rotaflow was established in 1982 to meet an industry need for high
quality, robust and reliable swivel joints. The original patented
design has now been developed for a wide range of applications, from
the fire hose reel to drum rotators.
Rotaflow specialise in ‘one-off design and manufacture’ at ‘off the
shelf’ delivery times and we offer a technical advice service to
assist your choice - supported by stress analysis calculations to
ANSI B 31.3 Piping Code.
Every joint is tested and additional specific testing including
coded welding, rigorous pressure and NDT etc. is available on
request. Rotaflow is also certified to PED Module H for the design,
manufacture and repair of swivel joints – further evidence of its
commitment to high levels of quality and service.
Ian Watt originally developed the forerunner of today’s robust and
reliable design of Swivel Joint in 1982, using a unique needle
roller system and wide spaced bearings. The combination of this
bearing system and seal design gives the joints the potential of
three to four times the life of swivel joints utilising only ball
The patented design gives full bore flow and the high radial load
carrying capacity is ideal to allow the swivel to relieve torque in
hoses or give greater strength in cantilever applications.
OFF THE SHELF DELIVERY
The standard product range is continually being developed, with an
increasing number of swivel joints now available from stock for
Rotaflow also provides a refurbishment and maintenance service for
swivel joints and loading arms.
ONE-OFFS AND SPECIAL ORDERS
In addition to a wide range of standard products, Rotaflow can
design swivel joints and loading arms to suit customers’ individual
The company prides itself on being customer led, carefully assessing
the application and providing a solution that meets the specific
demands on each process. The Rotaflow design and manufacturing team
also have an excellent track record of providing a fast response to
The company is based at a purpose designed engineering centre at
Whaley Bridge in the High Peak. Its products are designed to meet
the demanding standards of customers throughout the oil, chemical
and process industries. Every joint is tested and additional
specific testing including coded welding, rigorous pressure and NDT
etc is available on request. Rotaflow is also certified to PED
Module H for the design, manufacture and repair of swivel joints –
further evidence of its commitment to high levels of quality and
All of our data sheets are available in PDF format on the Web.