Pyplok® is a weld-less, thread-less way of joining pipes. It has been successfully used in the most demanding environments where fire safety is essential and there is a need for quick and easy solution to maintenance repairs.
Being a non-welded and threadless fitting, Pyplok® has a lot of advantages to offer from traditional pipe and tube fittings. It is a very versatile fitting which is used in high pressure piping and also utility piping applications.
Using a portable, hand-held installation tool, couplings are cold worked and permanently compressed onto the pipes, thus forming a permanent leak-tight seal. There are two sets of seals: an Inner O-Ring seals and an Outer O-Ring seals. The outer O-Ring seals prevents outside contaminants from entering the system.
Pyplok® is available in Carbon Steel, Stainless Steel Type 316L, Copper Nickel 70/30, Copper Nickel 90/10, Duplex and Super Duplex material. They are available in sizes from ¼” to 4” NPS, from 6mm to 115 mm Metric tube, and from ¼” to 2” Imperial O.D. tube, with allowable pressure up to 9,300 PSI (640 BAR). Please refer to the Fittings pressure Chart. Pyplok® can be also used across different material grades of tubes. The O-rings as standard come in Viton, EPDM or can be ordered from a choice of seal materials which can be suitably supplied according to the requirement and have an operating temperature range of –65°F to +400°F (–54°C to +205°C). Pyplok® comes in all kinds of shape and sizes. TMI provides different set of Models to meet the installation standards on Pyplok®. Click here to know about Pyplok® Tooling. Pyplok® Models needs basic training to operate and the same could be provided by us.
Benefits of Pyplok®
- Pyplok® fittings are permanently swaged in “seconds” reduces on-site time and labor.
- Pyplok® fittings are swaged on; no hot work permits or fire watch personnel are required.
- Pyplok® tooling is hydraulically actuated eliminating special site services.
- Pyplok® system prevents the need for gas freeing.
- Pyplok® systems do not require acid pickling and neutralizing - eliminating the environmental issues relating to the disposal of such chemical wastes
- Pyplok® fittings are verified with a “Go-No-Go” inspection gauge - much quicker and less costly than NDT
Certifications
Compliance
- ASME B31.1, ASME B31.3, ASME B31.4, ASME B31.8
- CRN (Canadian Registration No)
- NAVSEA (United States Naval Sea Command)
- ANZAC (Australia New Zealand Navy)
- US Coast Guard
Testing
- API 6FB Third Edition Nov. 98 Fire Test for End Connection Fittings
- ISO 19921 Fire Test, Fire Resistance of Metallic Pipe Components with Resilient and Elastomeric Seals
- US Military Navy Shock Test MIL-S-901D
Applications
HYDRAULICS
LUBRICATION
GREASING
OIL
WATER
Cost Benefit Analysis
Read the case study where the Pyplok® system proved to be a more cost-effective solution than traditional hot work system for on-site pipework fabrication and repairs.
FAQ'S
What if fitting leaks?
When installed properly and pressure tested successfully, Pyplok® fittings will never leak. If a leak is present during pressure testing use the inspection gauge to confirm the fitting has been swaged properly. The next step is to re-swage the fitting using the Pyplok® tool and re-test. If necessary, the Pyplok® fitting can be cut out and replaced.
Can you reuse a Pyplok® fitting?
Pyplok® fittings cannot be re-used once they have been installed. Pyplok® fittings are considered a permanent connection much like a welded joint but installed cold.
What if you can't see the insertion marks on the tube?
It is recommend that the fitting be cut out and replaced by following the proper Pyplok® installation procedures.
Are Pyplok® fittings approved by ASME B31?
American Society of Mechanical Engineers (ASME) B31 pressure pipe codes are recognized and generally accepted as good engineering practice for piping design. Pyplok® fittings fall under ASME code section B31.3 – process piping and section B31.1 – power piping. Fittings that are manufactured in accordance with these specifications and standards may be used in piping systems. Fittings that are not listed in ASME code B31.3 and B31.1 are considered unlisted components and as such the pressure design of these components must meet the requirements set out in section 304.7.2 in B31.3 and 104.7.2 in B31.1.
Pyplok® fittings manufactured by Tube-Mac® Piping Technologies, meet the criteria established in ASME B31.3 and ASME B31.1. PYPLOK® fittings have undergone successful service experience, supplement testing, proof testing and detailed stress analysis using finite element methods.
Is Pyplok® available in Metric sizes?
Pyplok® is available in complete range of metric sizes and shapes. Sizes range from 6mm through 60mm.
What material types are available for Pyplok®?
Pyplok® is available in Carbon Steel, Stainless Steel type 316, Copper Nickel (CuNi) 70/30, limited selection of fittings in CuNi 90/10, Duplex and Super Duplex. For further details, please contact us.
What material types are available for Pyplok®?
Pyplok® is available in Carbon Steel, Stainless Steel type 316, Copper Nickel (CuNi) 70/30, limited selection of fittings in CuNi 90/10, Duplex and Super Duplex. For further details, please contact us.
What maximum temperature can the fittings withstand?
Pyplok®’s elastomeric seals (O-Rings) are the limiting factor. Viton is the standard elastomeric seal compound with a maximum temperature of 400º F (205º C). For steam or hot water applications it is highly recommend to use an EPDM seal which has a maximum operating temperature of 400º F (205º C). Other seals are available upon request including cold temperature applications.
How close can I install Pyplok® fittings to a pipe bend?
Pyplok® fittings cannot be installed on the radius of a bend. The fitting must be installed on the straight leg beyond the tangent point of the radius.
If I don't swage the fitting enough, do I have to cut it out and replace it?
No you don’t have to cut out and replace the fitting. Simply place the Pyplok® tool around the fitting and re-swage it. Check with the inspection gauge to ensure the proper swage diameter has been achieved. As a pre-engineered tool, you can swage the fitting hundreds of times and you will never damage the fitting. The Pyplok® tool will automatically stop at a pre-engineered diameter for each size.
