25-40mm Constant Tension Hose Clamp, 14mm Width, Stainless Steel

25-40mm Constant Tension Hose Clamps, 14mm , Stainless Steel | Vital Parts – CTHC-25-40-14-W4

Our Constant Tension Hose Clamps are specialized worm drive clamping solutions engineered to maintain consistent pressure and prevent cooling leakage in assemblies subject to thermal expansion and contraction cycles. Featuring innovative Belleville spring washer technology compressed during tightening, these advanced clamps automatically adjust to temperature fluctuations while providing continuous sealing force. The smooth internal bands designed to protect hoses from damage while delivering superior reliability in harsh operating conditions across automotive, industrial and marine applications.

What are Constant Tension Hose Clamps?

Constant Tension Hose Clamps are advanced worm drive fastening devices that utilize stacked conical Belleville washers to provide automatic tension adjustment as hose assemblies expand and contract due to temperature variations or pressure fluctuations. Unlike conventional clamps that may loosen during thermal cycling, these clamps feature spring-loaded mechanisms that compress during installation and continuously adjust clamping force to compensate for material expansion, contraction and cold flow conditions. The smooth internal band design prevents hose damage while the precision-engineered spring system maintains optimal sealing pressure, making them essential for applications where temperature fluctuations could otherwise cause joint loosening and coolant leakage.

To learn more about these clamps, see our Guide to Hose Clamps.

Key Features:

• Belleville spring washer technology provides automatic tension adjustment for thermal cycling
• Smooth internal band design prevents hose cutting and abrasion damage
• Worm drive mechanism allows precise adjustment to required tension levels
• Self-compensating design maintains constant pressure during temperature fluctuations
• Reusable construction enables cost-effective maintenance and line changes
• High-temperature resistance suitable for demanding thermal environments

Key Applications and Industries

In the UK market, Constant Tension Hose Clamps are extensively utilized across automotive cooling systems, radiator and heater hose connections, turbocharger installations, industrial pump and filtration systems, hydraulic and pneumatic applications, marine engine cooling systems and heavy-duty equipment subject to vibration and temperature variations. These clamps are particularly valuable in automotive aftermarket, commercial vehicle maintenance, industrial process equipment and any application where standard clamps may fail due to thermal cycling or pressure fluctuations.

Technical Specifications

• Band Widths: 14mm
• Clamping Diameter Range: 25-40mm
• Tightening Torque: 7.5Nm
• Spring System: Stacked conical Belleville washers
• Drive Mechanism: Precision worm drive adjustment
• Internal Band: Smooth surface for hose protection
• Temperature Range: Suitable for extreme thermal cycling applications
• Installation: Standard tool installation with torque adjustment capability

Our Constant Tension Hose Clamps are ideal for:

• Automotive cooling system connections subject to temperature fluctuations
• Radiator and heater hose installations requiring leak-proof sealing
• Turbocharger and intercooler hose connections under pressure variations
• Industrial equipment with hydraulic and pneumatic systems
• Marine engine cooling circuits exposed to harsh environmental conditions
• Heavy machinery applications experiencing vibration and thermal stress

Benefits:

• Prevents cooling leakage through automatic tension adjustment during thermal cycling
• Superior corrosion resistance ensures long-term reliability in harsh environments
• Smooth internal band protects expensive hoses from cutting and damage
• Easy installation and removal simplifies maintenance procedures
• Durable stainless steel construction provides exceptional service life
• Reusable design reduces long-term replacement costs
• Self-compensating spring system eliminates need for frequent retightening
• Maintains consistent sealing force under varying operational conditions
• Reduces maintenance downtime through reliable performance

Why Choose Vital Parts?

Vital Parts is a trusted UK supplier of premium fasteners and industrial components, dedicated to delivering a customer-focused service with the following advantages:

• Same-Day Dispatch: Fast and reliable shipping to keep your projects on track.
• Competitive Trade Pricing: Enjoy bulk discounts on larger orders to save more.
• Expert Technical Support: Our knowledgeable team is here to help with product selection and application advice.

Our Constant Tension Hose Clamps deliver superior performance in demanding thermal cycling applications where conventional clamps fail to maintain adequate sealing force. With advanced Belleville spring technology and premium stainless steel construction, they provide reliable, long-term solutions for critical cooling system and high-temperature applications. If you need assistance selecting the right size or would like to discuss custom options, contact our expert team at 01233 713581.