SIST ISO 251:2013 PDF

Name: SIST ISO 251:2013 — Conveyor belts with textile carcass - Widths and lengths
SKU: SIST ISO 251:2013
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Conveyor belts with textile carcass - Widths and lengths

Название (английский):

SIST ISO 251:2013

Conveyor belts with textile carcass - Widths and lengths

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 7
Дата публикации:: 11 ноября 2013 г.
ICS:: 53.040.20
Технический комитет:: DTN - Lift and transport appliances

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Описание (английский):

This International Standard specifies the widths and lengths of conveyor belts with a textile carcass. It also specifies the corresponding tolerances. It is not applicable to light conveyor belts as described in ISO 21183-1, as tolerances on the widths and lengths of cut light conveyor belts are given in ISO 15147.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 251:2012 - "Conveyor belts with textile carcass - Widths and lengths" is an international standard that specifies nominal widths and permissible tolerances for textile‑carcass conveyor belts. It also defines tolerances on belt lengths measured without tension and clarifies that belt lengths themselves are not standardized. This edition (4th, 2012) replaces ISO 251:2003.

Key topics and technical requirements

Nominal widths and width tolerances for open (cut‑edge) textile carcass conveyor belts are specified in a list of standard sizes. Examples include:

300 mm ±5 mm
400 mm ±5 mm
500 mm ±5 mm
600 mm ±6 mm
800 mm ±8 mm
1000 mm ±10 mm
1600 mm ±16 mm
2000 mm ±20 mm
3000 mm ±30 mm
3200 mm ±32 mm (Full nominal width table and tolerances are given in the standard.)

Length tolerances (measured without tension) are given for belts without ends (endless belts) by length ranges:

≤ 15 m: ±50 mm
15 m but ≤20 m: ±75 mm
20 m: ±0.5% of the belt length in metres

Open belt length tolerances (for belts supplied as open lengths or in multiple lengths) are addressed in a separate table; tolerances depend on the delivery mode (single length or multiple lengths). Refer to ISO 251:2012 for the full treatment and exact allowable deviations.

Scope exclusions: The standard does not apply to light conveyor belts covered by ISO 21183‑1; tolerances for some light cut‑edge belts are given in ISO 15147.

Practical applications

Procurement and specification: Use ISO 251:2012 to define acceptable belt widths and length tolerances in purchase orders and technical specifications.

Manufacturing and quality control: Belt manufacturers apply the nominal widths and tolerance limits during production, cutting and inspection.

Installation and maintenance: Installers and maintenance teams use the tolerances to assess acceptance, splicing accuracy and replacement suitability.

Conveyor system design: Engineers incorporate standardized widths and realistic length tolerances when designing belt paths, pulley widths and splicing procedures.

Related standards

ISO 21183‑1 - Light conveyor belts: characteristics and main applications

ISO 15147 - Tolerances on widths and lengths for certain light cut‑edge conveyor belts

Keywords: ISO 251:2012, conveyor belts with textile carcass, widths and lengths, nominal widths, length tolerances, conveyor belt standards, belt manufacturing, belt procurement.

SIST ISO 251:2013 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Practical applications

Who uses this standard

Related standards

Технические детали

ISO 251:2012

Conveyor belts with textile carcass — Widths and lengths

ISO 251:2003

Conveyor belts with textile carcass — Widths and lengths

BS EN ISO 21183-1:2006

Light conveyor belts. Principal characteristics and applications.

SIST EN ISO 15147:2013

Light conveyor belts - Tolerances on widths and lengths of cut light conveyor belts (ISO 15147:2012)