Band width: 19mm (0.75”)
Material: W2 301/W2 304
Free running torque: 6 in-lbs (0.7 Nm)
Suggested installation torque: 77 in-lbs (9 Nm)
A spring loaded hose clamps (also known as a constant-tension hose clamp or thermostatic T-bolt clamp) is a specialized high-performance clamping device that integrates the robust holding power of a standard T-bolt clamp with a precision-engineered Belleville washer spring assembly. This combination provides automatic, continuous compensation for thermal expansion, vibration, and hose relaxation, making it the preferred solution for extreme-duty applications in dynamic environments.
Key Components of T bolt spring loaded hose clamp
Heavy-Duty T-Bolt Mechanism: Features the same high-strength band and T-head bolt locking into a forged housing as a standard T-bolt clamp, ensuring exceptional static holding strength.
Belleville Washer Spring Stack: The defining component. A series of conical disc springs (Belleville washers) is assembled under the bolt head or within a dedicated spring housing. These springs are pre-calibrated to exert a specific, constant load (e.g., 50 lbs, 100 lbs).
Principle of Constant Tension:
During initial installation, the clamp is torqued until the spring stack is fully compressed ("collapsed"). This indicates the target pre-load has been achieved.
As the system operates, temperature cycles cause the hose, pipe, and fitting materials to expand and contract. The spring assembly automatically flexes, maintaining near-constant pressure on the joint.
This prevents the common failure mode of standard clamps: loosening due to thermal cycling ("heat cycling") or hose material creep over time.
FAQ of Spring Loaded Hose Clamps
Q: What is the benefit of a spring-loaded clamp over a standard T-bolt clamp?
A: Standard T-bolt clamps provide high static tension but can leak or damage hoses when temperature changes cause expansion or contraction. The spring-loaded design automatically adjusts to these changes, maintaining a constant, leak-proof seal at all times.
Q: What material is used for the spring?
A: We use high-tensile spring steel with anti-corrosion coating or stainless steel to ensure the spring maintains its elasticity even after years of thermal cycling.
Q: Are these suitable for high-vibration environments?
A: Yes, the spring mechanism acts as a shock absorber, making these clamps the industry standard for heavy-duty truck engines and industrial pumping systems where vibration is constant.
Constant Tension Spring Loaded Hose Clamps
Our Spring Loaded Hose Clamps (also known as Constant Tension Clamps) are the perfect solution for joint connections where temperature fluctuations occur. Engineered to provide a continuous, 360-degree seal, these clamps automatically adjust their diameter to compensate for the expansion and contraction of hoses and fittings.
Why Choose Our Spring Clamps?
Automatic Compensation: Eliminates the risk of leaks caused by "cold flow" in rubber hoses.
Durable Materials: Available in high-carbon spring steel and stainless steel with anti-corrosion coatings like Dacromet.
Easy Installation: Can be quickly installed using manual or pneumatic pliers.
Wide Application: Ideal for automotive cooling systems, fuel lines, and industrial machinery.
