Master-PUR STEP

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PU Film Hose, crush-resistant, hardly inflammable acc. to DIN 4102 B1

Material

  • spiral: polyurethane, hardly inflammable, with integrated wire
  • wall: pure polyester polyurethane with flame-retardent additives (acc. to DIN ISO 4649 more abrasion-resistant than polyether polyurethane)
  • wall thickness between spirals approx. 0.5 mm

Applications

  • Ideal as Suction Hose for floor-level areas where conventional hoses are subjected to rough conditions and can be permanently deformed
  • Wood processing
  • Protective hose
  • Suction & transport hose for abrasive solids, liquids and gases

Properties

  • hardly inflammable acc. to DIN 4102 B1
  • acc. to requirements of the Holz-BG standard, BGI 739-2
  • crush-resistant and recoverable
  • withstands high mechanical loads
  • excellent recovery properties
  • super lightweight
  • highly flexible
  • abrasion-resistant
  • good resistance to chemicals, oil and fuel
  • generally good UV and ozone resistance
  • acc. to TRGS 727 and ATEX 2014/34 EU, with earthing at both ends of the spiral for non-flammble dust/bulk solids in Zone 22. For gases/liquids with low conductivity of electrostatic charges in Zone 2.

Temperature Range

  • -40°C to +90°C
  • peaks to +125°C

Technical Drawing

Connections

Construction

Film/Foil/Fabric Hoses with External Helix

This method includes the hose types Carflex Super, Master-PUR STEP, Master-PUR STEP MHR and Master-SANTO SL.

Construction

Strips of film, foil or fabric – spiral-shaped with welded overlaps and an external profile made from plastic or plastic-coated spring steel wire.

Advantages

Variable production options for spiral hoses made from a wide range of materials including strips of film, foil or fabric.

  • highly flexible
  • smallest bending radii
  • production diameters available (dep. on hose type) from DN 32 – DN 450

Product Variations (**Please replace “x” with your desired hose length.)

Product Variations (**Please replace “x” with your desired hose length.)

DN op. pressure vacuum bend radius outer Ø weight/m old article no. **new article no. stock length max. production length
bar bar mm mm kg m m
50 0,78 0,2 50 68 0,39 311-050-618 000396:050:x / 25
51 0,78 0,2 50 68 0,39 311-051-618 000396:051:x 5/10/15 25
60 0,76 0,19 65 80 0,45 311-060-618 000396:060:x 5/10 25
75 0,62 0,13 74 94 0,6 311-075-618 000396:075:x / 25
76 0,61 0,13 75 95 0,61 311-076-618 000396:076:x / 25
80 0,53 0,13 80 100 0,65 311-080-618 000396:080:x 5/10/20 25
100 0,47 0,09 98 118 0,79 311-100-618 000396:100:x / 25
102 0,46 0,09 100 120 0,8 311-102-618 000396:102:x 5/10 25
120 0,38 0,09 120 140 0,95 311-120-618 000396:120:x 5/10 25
140 0,3 0,06 140 160 1,15 311-140-618 000396:140:x / 25
150 0,3 0,06 148 168 1,19 311-150-618 000396:150:x / 25
152 0,3 0,06 150 170 1,2 311-152-618 000396:152:x / 25
160 0,3 0,06 160 180 1,3 311-160-618 000396:160:x / 25

All data refers to a medium and ambient temperature of +20 °C.
* Refers to the inner hose lining
Subject to technical changes and colour deviations.