Pipe Expansion Joints, Bellows and Pipe Connectors
Rubber expansion joints
Metal expansion joints and bellows
PTFE expansion joints and bellows
Flexible Pipe Connectors
We offer rubber pipe connectors and metal flexible pipe connector styles. Our piping expansion joints and pipe connectors are Made in the USA!
Let Thunder Technologies partner with you on your piping system expansion joints and bellows, and flexible pipe connectors! Besides, we are a friendly bunch to work with!
Give us a call 248-844-4875 or shoot us an email.
Sales@thundertechllc.com

If your facility uses piping expansion joints, bellows expansion joints and pipe connectors, you know what you need and how critical it is to install the optimum expansion joint to protect your piping.
We try to make it easy for you. We do not expect you comb thorough our product line to find your optimum piping system expansion joint. That is our job!
Call us or email us with your flex joint technical specifications. Our highly trained, expert sales force and factory engineers will help you select a pre-engineered or custom design for your ideal expansion joint and pipe connectors.
As you know, flexible pipe joints, expansion bellows and pipe connectors help solve piping system issues including misalignment; vibration; stresses from thermal expansion and contraction; noise dampening; shock from water hammer, pressure spikes and pump cavitation; and save space compared to loops and bends.






Rubber Expansion Joints for Piping
Rubber expansion joints for piping come in a variety of styles and are used to convey fluid under vacuum or pressure conditions in piping systems. Flanged rubber expansion joints are most common.
Flexible Rubber Expansion Joints for Piping Systems Features:
- Styles– Spool, spherical, multi -Arch, filled-arch, taper, offset, concentric reducing, eccentric reducing and more
- Custom configurations available
- EPDM & Neoprene are the most common rubber. Other rubber types available
- Molded and reinforced
- Control units can be added for additional support
- Up to 500F degrees
- ½” – 144”, custom sizes available
- Lightweight
- PTFE lining available
- Cost effective for general service with pressure
- Made in the USA
We can help you! Give us a call 248-844-4875 or shoot us an email! Sales@thundertechllc.com
Metal Expansion Joints and Metal Bellows Expansion Joints for Piping
Metal expansion joints and metal bellows are critical for your facility’s high temperature and higher-pressure piping system. They are also commonly known as stainless flex joints, stainless steel bellows, welded bellows, metal bellows expansion joints and metal flex joints.
Metal expansion joints and SS Bellows types and styles include unrestrained, tied, hinged, gimbaled, single, universal, in-line, externally pressurized, elbowed and more.
Metal expansion joints high temperature and pressure ratings are ideal for high pressure steam expansion joints and other high temperature expansion joints.
We can refurbish a customer’s out-of-service joint, especially very large diameter metal expansion joints.
Our highly knowledgeable and trained sales people and factory engineers work with you and your engineers to customize the optimum metal expansion joint and bellows joint for your specific piping system needs.




Metal Expansion Joints and Bellows Features:
- High Pressure and high temperature ratings. Exact ratings depend on the design.
- Custom Designed and pre-engineered
- Corrugated 316 and 321 stainless steel annular metal hose liner
- Monel® and Inconel ® available
- Close pitch and Open pitch designs
- With or without single or double braid cover
- Rubber cover available
- Flanged and threaded end fittings
- Designs conform to EJMA ASME Section VIII, B31.1 and B31.3
- Fittings area welded on by ASME IX certified welders
- 3D CAD modeling
- Testing options include pneumatic, hydrostatic, high-pressure gas, liquid penetrants, helium mass spectrometry, and X-ray
- Certifications available
- Very Large diameter designs available
- Made in the USA


Call us 248-844-4875 or shoot us an email Sales@thundertechllc.com with your technical specs and specific needs. Let Thunder Technologies partner with you to solve your metal expansion joint issues. We have a depth of knowledge, engineering and experience to help you!
PTFE Expansion Joints and Bellows Features:
- Hand-crafted solid-molded PTFE
- -300F degrees to 400F degrees operating temperatures
- Full-vacuum to 178 psi, depending on design
- Temperature up to 350F degrees, depending on design
- FDA compliant 21 CFR, Part 177, Subpart B, Section 177.1550
- Highly resistant to corrosion
- Withstands chemicals, steam, gases
- Tie Rods prevent over-extension
- Covers available : EPDM ; Neoprene; Metal; Viton™
- Custom designs available
- Made in the USA
Call us 248-844-4875 or shoot us an email sales@thundertechllc.com with your specs and specific needs.
Let Thunder Technologies partner with you to solve your piping system PTFE and FEP expansion joint and bellows issues. We have a depth of knowledge, engineering and experience to help you!
PTFE Expansion Joints and PTFE Bellows for Piping
You know if you need PTFE or FEP expansion joints or bellows in your demanding piping system. Call or email us to discuss your PTFE piping system expansion joints needs.
PTFE and FEP expansion joints and PTFE flexible bellows are superior for resisting corrosion, chemicals and steam and are non-stick. Your PTFE or FEP expansion joint or flex bellow are molded and hand-crafted.
PTFE piping expansion joints have fewer convolutions than PTFE bellows. For maximum vibration reduction and movement in your piping system, a PTFE bellow is preferred over a PTFE expansion joint. PTFE and FEP piping expansion joints can be combined with metal and rubber expansion joints.



Flexible Pipe Connectors
Thunder Technologies’ friendly salespeople are experts in critical flexible pipe connectors. Pipe connectors are often referred to as expansion joints, flex hose connectors, flexible pipe connectors, vibration hose and more. We offer Rubber pipe connectors and metal pipe connectors. Pipe connectors are flexible connectors for pipe systems and often used as pump connectors.
Rubber Pipe Connectors
Rubber pipe connectors are flexible connectors with a rubber liner, reinforced with fabric and/or metal wire, and a rubber cover. Typically rubber pipe connectors are a flanged flexible connector. Corrosion resistant coating can be applied. Rubber pipe connectors are typically for general use in industrial piping systems, heating, A/C systems which do not require high temperature, full-vacuum or high-pressure ratings.
Rubber Pipe Connectors Features:
- Liner materials include Natural rubber, FKM, EPDM, Nitrile, Neoprene and more
- Custom-made
- Temps up to 400F degrees
- Pressure to 150psi
- No metal-to-metal contact, no electroylic action
- Designed to absorb noise and vibration
- Absorbs water hammer and water vibrations
- Ideal for Industrial piping, heating and air conditioning systems
- Made in the USA



Call us 248-844-4875 or shoot us an email Sales@thundertechllc.com with your technical specs and specific needs. Let Thunder Technologies partner with you to solve your metal expansion joint issues. We have a depth of knowledge, engineering and experience to help you!
Metal Pipe Connectors Features:
- Corrugated 300 series stainless steel metal hose liner
- Braided 300 series stainless steel cover
- Up to 1500F degrees
- Full-vacuum
- Stainless and carbon steel fittings
- Optimal corrosion resistance
- Fittings welded to hose by ASME IX, B31.1 and B31.3 certified welders
- Test options include pneumatic, hydrostatic, high-pressure gas, liquid penetrants, helium mass spectrometry, and X-ray
- Certifications available
- Ideal for petroleum piping systems, industrial Piping systems and submersible pumps
- Long Lasting for your critical need
- Made in the USA


Custom Flexible Metal Pipe Connectors
Custom critical flexible metal pipe connectors have a stainless steel convoluted metal liner with a single braided stainless steel metal braided cover. Flexible stainless steel flexible pipe connectors are also known as Flex connectors, braided connectors, and metal hose. Metal pipe connectors are often used as pump connectors.
Our highest quality metal pipe connectors handle high temperature, higher pressure and are full-vacuum rated. Fittings are welded on by ASME certified welders. Flanges, male hex, female unions are the most common end fittings. Other fittings, including BSPP and BSPT, are available.



Call us 248-844-4875 or shoot us an email Sales@thundertechllc.com with your technical specs and specific needs. Let Thunder Technologies partner with you to solve your metal expansion joint issues. We have a depth of knowledge, engineering and experience to help you!
PRICING & AVAILABILITY
We Look Forward to Working With You
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