Description
Product Overview
The Supplying Demand 1-1/2 inch rubber coupling is engineered to provide a secure, slip‑on connection for a wide range of pipe materials, including cast‑iron, plastic, and steel. Constructed from high‑grade rubber, the interior of the coupling offers excellent flexibility and resistance to wear, while the exterior stainless steel clamps deliver superior strength and corrosion resistance. Each unit includes two stainless steel screw clamps that tighten evenly around the pipe, ensuring a leak‑free seal even under fluctuating pressure conditions. The coupling measures 1‑1/2 inches at each end, with a cylindrical shape that simplifies alignment and installation. Designed for industrial and scientific applications, it meets the rigorous standards required for power transmission and fluid handling systems. The product dimensions of 3.5 x 2.75 x 2.25 inches and a lightweight of 0.15 kilograms make it easy to handle and store, while the black rubber finish provides a discreet appearance that blends seamlessly with most piping environments.
![[Product front view showing all components]](https://www.fairyshop.store/wp-content/uploads/2026/08/103e7adf94d5424ca75f9ec83e5ef97f.jpg)
Usage
This coupling is ideal for a variety of real‑world scenarios where reliable pipe connections are essential. In HVAC installations, it connects ductwork and refrigerant lines, offering a quick and dependable solution that reduces downtime. Water treatment facilities benefit from its ability to join dissimilar pipe materials without the need for welding or specialized tools, allowing for rapid repairs and system upgrades. In industrial settings, the coupling handles temperature extremes from -30 °F to 140 °F, making it suitable for both cold‑storage and high‑temperature processes. Its maximum operating pressure of 5 psi ensures safe operation in low‑pressure fluid transfer applications, such as chemical dosing, laboratory equipment, and irrigation systems. The easy slip‑on design means that technicians can install the coupling without extensive training, and the included stainless steel clamps provide a tight, vibration‑resistant fit that maintains integrity over long service periods.
Why Choose Us
Choosing the Supplying Demand rubber coupling means selecting a product backed by a reputation for quality and reliability. Each coupling undergoes rigorous testing to verify its performance under temperature and pressure extremes, ensuring that it meets or exceeds industry standards. The stainless steel clamps are precision‑machined to deliver uniform pressure, reducing the risk of uneven wear or premature failure. Our packaging includes clear labeling and protective materials that safeguard the product during shipping and handling. Additionally, we offer a 30‑day return policy for new and unopened items, along with a 90‑day limited manufacturer’s warranty on compatible models, providing peace of mind for both commercial buyers and DIY enthusiasts. Our dedicated customer support team is available to answer technical questions, assist with installation guidance, and address any concerns that may arise after purchase.
Key Features
- Easy slip‑on design eliminates the need for welding or specialized tools.
- Durable rubber interior resists wear and adapts to pipe movement.
- Stainless steel clamps provide a corrosion‑resistant, tight seal.
- Operates safely from -30 °F to 140 °F and up to 5 psi pressure.
- 30‑day return policy and 90‑day warranty ensure reliable after‑sales support.
FAQ
What pipe materials can this coupling connect?
The coupling is compatible with cast‑iron, PVC, CPVC, ABS, and steel pipes, making it a versatile solution for many plumbing and industrial applications.
How do I install the stainless steel clamps?
Place the coupling over the pipe ends, align the holes, and insert the two stainless steel clamps. Tighten the clamps evenly using a screwdriver or wrench until the coupling is firmly secured without over‑tightening.
Is this coupling suitable for high‑temperature applications?
Yes, the coupling is rated for temperatures up to 140 °F, which covers most hot‑water and steam‑related uses in residential and light‑industrial settings.
Can I use this coupling for pressurized fluid systems?
The coupling is designed for low‑pressure environments up to 5 psi. For higher pressure requirements, a different type of rigid coupling should be selected.
What warranty coverage does this product have?
Supplying Demand provides a 90‑day limited manufacturer’s warranty on compatible models, covering defects in materials and workmanship, in addition to a 30‑day return policy for unopened items.






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