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Screw (Worm Gear) clamp Gardena 7193-20
The Gardena 7193-20 screw (worm gear) clamp is a durable steel hose clamp designed to secure hoses with a 4 cm diameter. Its corrosion-resistant metal band and threaded screw mechanism provide adjustable tension and a tight seal for garden hoses, irrigation lines and other flexible tubing. The clamp is intended to maintain reliable connections in outdoor watering systems and to reduce the risk of leaks and pressure loss.
The screw-driven worm gear design allows gradual, precise tightening and maintains consistent clamping force over time. Constructed from robust steel, the clamp withstands mechanical stress typical of garden use and offers extended service life. Its compact profile makes it suitable for confined spaces and standard hose fittings, while the smooth band edge helps protect hose material from damage during installation.
Slide the clamp over the hose end, position the hose on the connector or fitting, then slide the clamp into place so the band sits evenly over the joint. Turn the screw clockwise with a screwdriver until the clamp tightens and the hose is firmly compressed against the fitting. Avoid over-tightening; tighten until the connection is secure and the hose does not rotate on the fitting. To remove, turn the screw counterclockwise until the band loosens and can be withdrawn from the hose.
Inspect clamps periodically for corrosion or wear, especially in outdoor installations. Replace clamps that show significant rust or damage. For best results, use the clamp on hoses that match the recommended diameter and ensure the band is placed over the hose reinforcement or thicker section to improve sealing performance.
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