SFS-EN ISO 21049:en

Soveltamisala

Suomenkielistä soveltamisalaa ei ole saatavissa.

ISO 21049:2004 specifies requirements and gives recommendations for sealing systems for centrifugal and rotary pumps used in the petroleum, natural gas and chemical industries. It is applicable mainly for hazardous, flammable and/or toxic services where a greater degree of reliability is required for the improvement of equipment availability and the reduction of both emissions to the atmosphere and life-cycle sealing costs. It covers seals for pump shaft diameters from 20 mm (0,75 in) to 110 mm (4,3 in).
ISO 21049:2004 is also applicable to seal spare parts and can be referred to for the upgrading of existing equipment. A classification system for the seal configurations covered by ISO 21049:2004 into categories, types, arrangements and orientations is provided.

Tämän julkaisun valmistelusta Suomessa vastaa SFS Suomen Standardit, puh. 09 149 9331.

Sisällysluettelo

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Sealing systems

4.1 Seal categories, types and arrangements
4.2 Objectives
4.3 Specifying and/or purchasing a sealing system

5 General

5.1 Unit responsibility
5.2 Dimensions

6 Design requirements

6.1 Common design requirements (all categories)
6.2 Design requirements (category-specific)

7 Specific seal configurations

7.1 Arrangement 1 seals
7.2 Arrangement 2 seals
7.3 Arrangement 3 seals

8 Accessories

8.1 Auxiliary piping systems
8.2 Mechanical seal flush/cooling systems (Group I)
8.3 Quench systems (Group II)
8.4 Cooling-water systems (Group III)
8.5 Accessories and auxiliary system components
8.6 Barrier/buffer fluid and seal flush positive-circulating devices

9 Instrumentation

9.1 General
9.2 Temperature-indicating gauges
9.3 Thermowells
9.4 Pressure gauges
9.5 Switches
9.6 Level indicators
9.7 Flow instruments
9.8 Relief valves
9.9 Regulators
9.10 Pressure amplifiers

10 Inspection, testing and preparation for shipment

10.1 General
10.2 Inspection
10.3 Testing
10.4 Preparation for shipment

11 Data transfer

11.1 General
11.2 Proposal data
11.3 Contract data

Annex A Recommended seal selection procedure (informative)
Annex B Typical materials standards for seal chamber and mechanical seal components (informative)
Annex C Mechanical seal data sheets (normative)
Annex D Mechanical seal codes (informative)
Annex E Seal and pump vendor interface responsibilities (normative)
Annex F Heat generation and heat soak calculations (informative)
Annex G Standard flush plans and auxiliary hardware (normative)
Annex H Inspector checklist for all seals (informative)
Annex I Form for mechanical seal qualification test (normative)
Annex J Mechanical seals data requirements form (normative)

Bibliography

Näytä kaikki

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Sealing systems

4.1 Seal categories, types and arrangements
4.2 Objectives
4.3 Specifying and/or purchasing a sealing system

5 General

5.1 Unit responsibility
5.2 Dimensions

6 Design requirements

6.1 Common design requirements (all categories)
6.2 Design requirements (category-specific)

7 Specific seal configurations

7.1 Arrangement 1 seals
7.2 Arrangement 2 seals
7.3 Arrangement 3 seals

8 Accessories

8.1 Auxiliary piping systems
8.2 Mechanical seal flush/cooling systems (Group I)
8.3 Quench systems (Group II)
8.4 Cooling-water systems (Group III)
8.5 Accessories and auxiliary system components
8.6 Barrier/buffer fluid and seal flush positive-circulating devices

9 Instrumentation

9.1 General
9.2 Temperature-indicating gauges
9.3 Thermowells
9.4 Pressure gauges
9.5 Switches
9.6 Level indicators
9.7 Flow instruments
9.8 Relief valves
9.9 Regulators
9.10 Pressure amplifiers

10 Inspection, testing and preparation for shipment

10.1 General
10.2 Inspection
10.3 Testing
10.4 Preparation for shipment

11 Data transfer

11.1 General
11.2 Proposal data
11.3 Contract data

Annex A Recommended seal selection procedure (informative)
Annex B Typical materials standards for seal chamber and mechanical seal components (informative)
Annex C Mechanical seal data sheets (normative)
Annex D Mechanical seal codes (informative)
Annex E Seal and pump vendor interface responsibilities (normative)
Annex F Heat generation and heat soak calculations (informative)
Annex G Standard flush plans and auxiliary hardware (normative)
Annex H Inspector checklist for all seals (informative)
Annex I Form for mechanical seal qualification test (normative)
Annex J Mechanical seals data requirements form (normative)

Bibliography

Tuoteryhmä(t)

21.140 Tiivisteet, tiivisterenkaat »
23.080 Pumput »
23.100 Hydraulisen ja pneumaattisen voimansiirron järjestelmät »
83.140 Kumi- ja muovituotteet »

Sidokset

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Tekninen komitea

CEN/TC 12 Oil and gas industries including lower carbon energy »

Vahvistuspäivä

15.08.2005

Julkaisupäivä

02.09.2005

Painos

1

Sivumäärä

198

Julkaisun kieli

englanti