Allow Axial Movement While Maintaining Vertical Restraint
Pipe hold-down clamps secure the pipe in place while allowing it to expand, contract, and shift naturally without stress concentration or misalignment.
Thermal expansion can disrupt alignment, overstress anchors, and damage coatings, particularly on large-diameter pipes measuring 20 inches or more in diameter. Without proper restraint, pipe systems can buckle supports or shift pipe saddles, triggering high-cost field repairs.
In compressor stations, wastewater treatment facilities, pipeline terminals, petrochemical plants, and LNG terminals, slight misalignment can threaten structural integrity. Long lead times on specialized supports only aggravate the situation.
That’s why engineers choose pipe hold down clamps that install cleanly, eliminate the effects of stress, and account for thermal expansion.
HD-2 and HD-3 Pipe Hold Down Clamps with PTFE Slide Plates Manufactured by Piping Technology
Our HD-2 and HD-3 pipe hold-down clamps are designed to provide secure vertical restraint and controlled axial movement of the pipe.
These hold-down clamps are designed for pipes with diameters of 20 to 30 inches and are manufactured from carbon steel. The clamp saddle and base are lined with PTFE (polytetrafluoroethylene) and 25% glass fiber-filled slide plates, creating a durable, low-friction sliding surface.
The result: restrained vertical load with smooth axial movement, while restraining vertical and lateral movement in the piping system.
How it works:
- PTFE-lined (or graphite) surface allows low-resistance axial pipe movement without binding or buckling
- Glass fiber fill reinforces the sliding surface under load
- Carbon steel body ensures long-term structural stability
- Typically installs using a bolt-down configuration, minimizing the need for field welding
Case Study: Rush Delivery to South Dakota Natural Gas Pump Station
A natural gas pump station in South Dakota required large-diameter hold-down clamps that could withstand thermal cycling, vibration, and harsh outdoor exposure.
Project Specs:
- Pipe Diameter: 20″ to 30″
- Quantity: 22 custom-fabricated pipe hold down clamps
- Material: Carbon steel with 25% glass-filled PTFE liners
- Application Environment: Outdoor station, high-vibration compressor skid
- Turnaround: One-week rush fabrication, shipped on time, zero field modifications
The hold-down clamps arrived installation-ready with clear labeling and documentation: no grinding, no guesswork, no schedule slip.
We pride ourselves on being the manufacturing leader for large-scale projects, providing rapid delivery to meet construction milestones. We offer a 24-hour emergency support hotline for critical situations:
Where Pipe Hold Down Clamps Work Best
- Natural gas compressor and pump stations
- Petrochemical and chemical processing plants
- LNG terminals and cryogenic transfer lines
- Structural steel pipe racks and skids for space aviation, semiconductor, and battery plants
- Long-run pipe systems requiring expansion, travel control
Field Benefits of Pipe Hold Down Clamps
- Controls axial, vertical, and lateral movement, where uncontrolled movement can damage expensive equipment or cause safety hazards.
- Reduces clamp friction and wear with PTFE-lined saddle
- Minimizes rework and installation risk with a bolt-in design
- Installs fast, no welding or fit delays
- Engineered for vibration control to dampen and restrict pipe vibration, preventing fatigue or failure.
- Built to spec for 20- to 30-inch diameter pipe
- Shipped labeled and documented to streamline the installation
Engineer’s Take: Designed for Restraint
These hold clamps meet ASME and ASTM material and performance specifications, and every hold-down clamp undergoes rigorous internal quality checks and inspections. The PTFE slide plates enable axial movement of pipes without binding in piping systems and protect coatings. Engineers use them to control the piping system and meet ASME code requirements on critical long-run systems. For a pipe stress engineer, the use of hold-downs with PTFE can be a valuable tool in directing and managing the thermal expansion of the piping system.
Project Manager’s Take: Built to Install Without Surprises
When project timelines are tight, you don’t have room for guesswork. These pipe hold down clamps ship fast, even in a rush, and arrive ready to bolt in place. No RFI triggers, no field-fit delays. Just labeled, documented, fabrication-verified components that hold up during commissioning and beyond. Less risk, fewer delays, and lower total install cost.
Commonly Paired Products
- Pipe Shoes with PTFE Slide Plates – For guided thermal movement on supports
- Spring Hangers – To handle vertical load shifts in dynamic systems
- Pipe Anchors and Guides – For directional restraint and thermal path control
- Insulated Pipe Supports – For high-temp systems needing coating protection
- Adjustable Pipe Supports – Allowing for on-site adjustments at the time of installation when pipe elevations are still not finalized
Talk to an Engineer
Piping Technology has one of the largest engineering departments in the piping support manufacturing industry. If you think pipe hold-down clamps would be a good solution for your next project, but would like to discuss it with our technical engineers, then contact us today!
If you are ready to move forward with a quote for your next project, then send us an RFQ for pipe hold down clamps.
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If you are ready to move forward with a quote for your next project, then send us an RFQ for pipe hold down clamps.
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