40
Tube Products International July 2014
products & developments
Mechanically attached connectors
reduce assembly time
Pyplok
®
connectors are attached cold,
by swaging the connector on the pipe
or tube with a hydraulic hand-held tool.
The labour and associated costs of
a conventional welded connection are
eliminated.
No special skilled labour is required,
and actual swaging time is measured in
seconds. No special hot work permits or
fire watch personnel are required, there
are no leaks as a result of stress fatigue
cracks, and there is no cost of X-raying
or re-working welds.
The connectors and swaging tools are
manufactured by Tube-Mac Piping
Technologies. Chris Peitchinis, the
company’s vice president global sales,
states that the Pyplok system has been
successfully used in industries such
as marine and offshore, steel, oil and
gas, and refineries. Applications include
hydraulic oil, lubrication, fuel lines,
steam trace, and many other fluids and
gases.
Pyplok is a solution for OD tube from
¼" to 2", metric tube from 6 to 90mm,
and NPS pipe from ¼" to 3". Due to the
design, the connector is dependent on
outside diameter and the wall can be
virtually any thickness. The connectors
are suitable for pressures up to 10,000
psi (690 bar) depending on the size and
safety factor.
After cutting and de-burring the pipe or
tube, the three-step installation process
is quick and simple: mark the insertion
depth; pressurise tool; and quality
assure the connection.
The insertion depth is marked on the
pipe using the Inspection/Marking
Gauge. The operator inserts the pipe
into the Pyplok connector, positions the
tool over the connector, and pressurises
the tool to swage the connector on
to the pipe. Quality assurance is also
carried out using the Inspection/Marking
Gauge. The actual swage cycle time
varies by size, but is typically 10 to 30
seconds.
Pyplok connectors have two elastomeric
O-ring seals at each end. The inner
O-ring seal closes off the potential leak
paths and the outer O-ring seal acts
as a back-up and an ‘environmental’
seal to prevent sea water or other
contaminants from entering between
the connector and the pipe.
O-ring materials are available in two
elastomeric compounds: Viton O-rings
for -26°C to 205°C (-15°F to 400°F); and
EPDM Compound E0962 (for steam) for
-51°C to 205°C (-60ºF to 400°F).
Pyplok connectors are supplied in
carbon steel with Cr (VI)-free plating,
316 stainless steel, and copper nickel
(CuNi) 70/30. Other materials are
available upon request, such as Duplex
and Super Duplex stainless steel. Pyplok
conforms to standard end connections,
SAE, NPT, DIN and flange patterns
in accordance with SAE Code 61/ISO
6162-1, SAE Code 62/ISO 6162-2, ISO
6164 and ANSI Class.
In addition to standard shapes such as
tees, 45º and 90º elbows and reducers,
custom connectors are available.
Tube-Mac Piping Technologies Ltd
–
Canada
New Beswick catalogue
Beswick Engineering has released its
2014 catalogue, containing over 150
new product items. The expansive
line of miniature fittings (compression,
barb and push-to connect), valves,
quick disconnects, pressure regulators
and orifices are suitable for fluid
power assemblies requiring durable
products, machined in 303 and 316
stainless steel or brass.
Ultra miniature Beswick products are
an option when space is limited and
leakage cannot be tolerated. As a
pioneer in utilising a captured O-ring
face seal in miniature fluid power
products, the company’s components
provide a leak tight fit. Beswick has
a large variety of miniature stainless
steel fluid power products, and other
materials, such as aluminium and
titanium, can also be supplied.
Beswick’s mechanical engineers
are available to provide technical
assistance, and can provide custom
design solutions for individual
applications. A free catalogue will
be sent to those enquiring for OEM
applications.
Beswick Engineering Co, Inc
– USA
