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ISO 9001 Certified · BFPA Members
The Mikalor ASFA L Constant Tension hose clamp is a compact constant tension solution designed to maintain consistent clamping force across a wide range of temperatures, pressures, and vibration conditions. Featuring a 9mm band width, the spring-loaded insert is fitted to a semi-circular support on the inside of the band, automatically compensating for any contraction or expansion of the hose. It is primarily used on hot air hoses and engine refrigeration systems where thermal cycling would cause a standard worm drive clamp to lose its clamping force over time.
The W3 version features a stainless steel W3 AISI 430 band and housing with a W4 AISI 304 stainless steel screw, providing 200 hours salt spray corrosion resistance to ASTM B-117. Fully compliant with DIN 3017 and RoHS EU Directive 2002/95/EC.
Also available in W4: ASFA L CT W4.
Key Features
Need assistance? Our team is available Monday - Friday to help.
Product specifications list connection type, size, material and pressure rating where applicable. If you’re unsure, contact our team with your requirements and we’ll help confirm compatibility before you order.
If in doubt, speak to us. It’s always better to check first.
Yes. Key technical details are listed on each product page. If you need additional information, just ask.
Included components are listed within the product description. If something isn’t clearly stated, contact us and we’ll confirm.
Orders placed before 2pm (Monday–Friday) are dispatched the same working day.
Yes. We deliver nationwide. Shipping costs are calculated at checkout.
Yes. We support trade, bulk and repeat customers. Contact us for pricing and availability.
Absolutely. We have a dedicated team available by phone and email who can assist with sizing, material selection and compatibility queries.
Yes. For trade or larger volume enquiries, please contact us directly to discuss pricing.
Unused items can be returned within our stated returns period of 30 days if in original condition. Please refer to our Returns Policy for full details.
Contact us as soon as possible and we’ll advise on the best solution.
Feel free to reach out to us!
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Henderson Parts is currently under construction. Our full self-serve trade store will be live within the next month. Industrial hoses, fittings, and more, available to order online 24/7.