Delivery Hose: Temperature Range -20°C to +80°C

Component Specifications

Definition

The delivery hose is a critical component of shotcrete machines, engineered to withstand high-pressure pumping of abrasive concrete mixtures. It consists of multiple layers including an inner wear-resistant tube, reinforcement layers (typically steel wire or textile braiding), and an outer protective cover. These hoses are designed to maintain flexibility while resisting abrasion, pressure surges, and environmental factors during concrete spraying operations in construction and tunneling applications.

Working Principle

The delivery hose operates by creating a continuous, sealed conduit that transfers pneumatically or hydraulically propelled concrete from the machine's pumping system to the nozzle. Its flexible construction allows for maneuverability during application while maintaining structural integrity under internal pressures ranging from 10-30 bar. The reinforcement layers provide burst resistance, while the smooth inner lining minimizes friction and material buildup.

Materials

Inner tube: Abrasion-resistant rubber (SBR, NBR) or polyurethane; Reinforcement: High-tensile steel wire braiding or spiral winding; Outer cover: Weather-resistant synthetic rubber or PVC; Temperature range: -20°C to +80°C; Pressure rating: 15-25 bar working pressure.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Length	10-30 meters standard
Bend Radius	300-600 mm
Burst Pressure	45-75 bar
Inner Diameter	38-76 mm (1.5-3 inches)
Weight Per Meter	2.5-6 kg
Working Pressure	15-25 bar
Temperature Range	-20°C to +80°C
Abrasion Resistance	≥15 mm³ loss (DIN 53516)

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 5771, DIN 20022, EN 856, SAE J517

Parent Products

This component is used in the following industrial products

Shotcrete Machine

A specialized construction machine that pneumatically projects concrete or mortar at high velocity onto surfaces.

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Engineering Analysis

Risks & Mitigation

Hose burst under overpressure
Abrasive wear leading to leaks
Material hardening causing blockages
Connection failure at couplings
Environmental degradation from UV/chemical exposure

FMEA Triads

Trigger: Reinforcement wire corrosion or fatigue
Failure: Hose burst during high-pressure operation
Mitigation: Regular pressure testing, use of corrosion-resistant materials, proper storage away from moisture

Trigger: Abrasive concrete mixture wear
Failure: Inner lining degradation causing leaks and reduced flow
Mitigation: Select abrasion-resistant inner materials, implement regular thickness monitoring, optimize concrete aggregate size

Trigger: Improper coupling installation
Failure: Connection separation under pressure
Mitigation: Follow manufacturer torque specifications, use proper clamping systems, implement connection inspection protocols

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Inner diameter tolerance: ±1.5%; Length tolerance: ±0.5%; Pressure rating must exceed maximum machine pressure by 150%

Test Method

Hydrostatic pressure testing per ISO 1402, abrasion testing per DIN 53516, flexibility testing per ISO 1746, coupling pull-out force testing

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Delivery Hose

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

CJan Fluid Technology Co., Ltd.

Shanghai, CN

ISO 9001:2015 IATF 16949

Also makes: Butterfly Valve, Water Flushing System, Dairy Flow Control Diaphragm Valve and 9 more

Listed on the company's own website · profile compiled by CNFX from public sources

Listed there as: “Delivery Hose”
View source page ↗ cjanfluid.com · checked 2026-08-26

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

How often should shotcrete delivery hoses be replaced?

Replacement depends on usage intensity and material abrasiveness, typically every 300-500 operating hours or when inner diameter wear exceeds 10%. Regular inspection for cracks, bulges, or stiffness is recommended.

Can different brand hoses be used interchangeably on shotcrete machines?

Yes, if they match the connection specifications (flange type, thread size) and pressure ratings. However, optimal performance requires matching the hose's flexibility and abrasion resistance to the machine's operating parameters.

What causes premature hose failure in shotcrete applications?

Common causes include excessive pressure surges, improper storage (kinking), UV exposure, chemical degradation from concrete additives, and inadequate cleaning leading to material buildup and hardening.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Delivery Hose