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Hose TypeType HB-ST – Tar spraying and bitumen hose for road construction machines (without / with steel helix)
Product NameType HB-ST
Part NumberHB-ST
Short DescriptionTar spraying and bitumen hose for road construction machines (without / with steel helix)
DescriptionPressure hose for road construction machines, especially for hot bitumen and heavy heating oil.
Temperature range: - 25° C up to + 220° C.
Meets EN 13482, Type 2 SB/B (DN 19 and DN 32 analogue).

PLEASE NOTE: Not suitable for brown coal tar oil and coal oil (toluene).
Read the safety hints for the use of hot bitumen hoses on catalogue page 136.
Permanent operation temperatures above 220° C significantly reduces hose lifetime.

HB hoses are designed for a nominal pressure of 10 bar and a burst pressure of min. 40 bar at +20° C.
Working pressure of 7 bar is allowed for service with hot products up to +200° C / +392° F.
Pressure test (55 min / 15 bar) upon request against surcharge.

To ensure a safe electrical conductivity of the hose assemblies the steel helix has to be securely fixed to the hose tails at both ends.

LiningSpecial elastomer, seamless
ReinforcementsSteel braids and embedded steel helix, zinc plated (DN 19 with steel braid only)
CoverSpecial elastomer, electrically dissipative, resistant against abrasion, weathering and ageing
MarkingBrown double helix and embossed continuously
Marking Sample

HB 19 ST · EN 13482 · ASPHALT - BITUMEN · TYPE 2 SB / B · PN 20 BAR · 220° C · ELAFLEX 3Q-15

SizeDN 19 to DN 50
Product Sheet
Page 135-136
Information 3.15
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Last Update: 07.06.2019