Gollmer & Hummel GmbH

- Model PU - Polyurethane Multipurpose Hose

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Superior abrasion resistance. Extremly hardwearing and durable for long service life. Resistance to oil, fuel and a wide range of chemicals (see resistance table in technical appendix). Resistance to weathering and ozone. Flexible and lightweight compared to mandril built hoses, good handling. Excellent cold flexibility

Applications

  • construction sites, waste water industry
  • agriculture and mining
  • transport of abrasive materials
  • flexible pipeline even in extreme terrain
  • irrigation and sludge disposal
  • for heavy duty service under toughest conditions

Standard length: 100 / 200 m (330 / 660 ft), other lengths on request
Standard colour : black
Service temperature: -50°C up to +75°C (-58°F up to 167°F), based on water
Tolerances can be found in the technical appendix
Change in technical specification without prior notice
10 Bar = 1 MPa

Technical data based on water. For air pressure the minimum safety ratio is 1:4. Depending on the application our product can be operated with a maximum working pressure up to 50 % of the bursting pressure. Consult factory for approval!
It is important to note, that the technical data for pressure are only valid for hose and not for hose assembly with couplings!

To obtain maximum lifetime the end pull under working conditions should not exceed 1/3 of the breaking strength

Construction
Textile reinforcement:

  • high tenacity polyester yarn, circular woven
  • special weaving design for continuous high pressure performance, high tensile strength and low elongation under pressure
  • totally embedded in the PU compound, excellent protected against mechanical damage

Lining and cover:

  • thermoplastic polyether polyurethane extruded through the weave in a unique one step production process
  • superior abrasion resistance 4-5 times better than NBR/PVC hoses
  • inside: very smooth for minimum friction loss
  • outside: very smooth for good flexibility

Special Options

  • single lenghts longer than 200 m (660 ft)
  • 52 - 90 mm (2 - 3 1/2) up to 500 m (1,650 ft)
  • 102 - 127 mm (4 - 5) up to 400 m (1,320 ft)
  • other dimensions

Note that special options are subject to a higher price and a minimum order of 2,000 m (6,600 ft) per dimension. Production short lengths and overproduction up to 10 % of the total order quantity have to be accepted.

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