Pressure and suction hoses work with pumps to both efficiently remove unneeded materials, such as water or chemical buildup, as well as to transport solid media, such as sand or wood chips. Suction hoses are used under negative pressure to remove materials, while pressure hoses operate under positive pressure to discharge materials. These hoses are made from various polymers, such as polyvinyl chloride (PVC) and polyurethane (PU). The hose is then strengthened by a support coil running along the tube. This coil can be made from a variety of materials, including PVC or steel. Figure 1 shows a light-green PVC hose with a PVC support coil running throughout the hose.
 

Application: Heavy duty drains for demanding and high pressure working environments

Tube: Black SBR/NBR hybrid rubber

Reinforcement: high tension textile rope

Cover: Black SBR rubber, wear resistant, oxidation resistant

Working pressure: Constant pressure 20Bar (300PSI)

Temperature range: -30°C (-22°F) to +80°C (+176°F)