Hose Clamp Topex 37D517, worm gear, size 130–150 mm, corrosion-resistant W2

Topex 37D517 is a worm-gear hose clamp designed for secure fastening of hoses, pipes and ducts within the 130–150 mm diameter range. Constructed from corrosion-resistant materials with W2 protection, the clamp uses a threaded band and captive screw to provide even clamping force and adjustable tightness. Its medium size and adjustable range make it suitable for tasks across automotive maintenance, plumbing and general repair where a robust metal clamp is required.

Advantages

The worm-gear mechanism enables precise adjustment and reliable retention under vibration and pressure. W2 corrosion resistance reduces the risk of surface rust in typical indoor and sheltered outdoor environments. The captive screw design prevents loss of the fastener during installation and the stainless or plated band construction provides consistent clamping performance over repeated use.

Suitable for

• Securing coolant, air and fuel hoses in automotive repair and maintenance
• Connecting plumbing and drainage hoses in household and light commercial applications
• Fixing ventilation ducting and flexible tubing in HVAC and workshop setups
• General repair tasks that require an adjustable metal clamp with medium diameter range

Key specifications

• Type: Worm-gear (screw) hose clamp
• Diameter range: 130–150 mm (adjustable)
• Material protection: W2 corrosion-resistant finish
• Screw: Captive screw for secure fastening
• Band: Perforated threaded metal band for even clamping force

How to use

Place the clamp around the hose or duct to be secured with the band positioned evenly over the connection. Tighten the captive screw using an appropriate screwdriver or nut driver until the clamp exerts firm, uniform pressure without deforming the hose. For flexible materials, tighten gradually and check the seal; for rigid connections, ensure the clamp is snug but not over‑torqued. Inspect the clamp after initial operation and re-tighten if necessary.

Usage recommendations

Use the clamp within its specified diameter range and avoid excessive torque to prevent damage to hoses. In corrosive or marine environments, consider higher protection class clamps. Periodically inspect clamps used on critical systems and replace if corrosion or thread wear is observed.