| 摘要 |
<p>An extensible device for delivering a fluid includes a first fitting (3) for a source of liquid in pressure, a second fitting (4) for a dispenser (5) and a hose (2), fixed to each fitting first (3) and second (4), with coils, and is made of high resistance plastic material Polyamide Pa10 type or Nylon 6 or Polyamide Pa11, Pa12 or Rilsan or Polyurethane or Polyethylene or Polyester or Polyvinyl Chloride PVC and preferably has the inside and outside diameters respectively equal to about 6 mm and 8 mm or 12 mm and 14 mm. In a first variant the device (1) further includes valve means (6) to prevent uncontrolled liquid losses in case of bursts and to prevent the liquid backflow. In a second variant, the device (1) has a container (20) laying underground or fixed to a wall.</p> |
