Hydrauliske systemer og komponenter til Allmenn bruk

Emner: Pumper
Komité: SN/K 123 (Pumper)
Opprinnelse: SN
Sluttdato: 21. okt 2021
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This document specifies methods and procedures for testing, calculating, and determining the Energy Efficiency Index (EEI) of submersible multistage pump units.
Komité: ISO/TC 5/SC 2 (Cast iron pipes, fittings and their joints)
Opprinnelse: ISO
Sluttdato: 26. okt 2021
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<p>This document specifies the evaluation method of life cycle analysis of ductile iron pipes used for water applications as specified in <std std-id="iso:std:iso:2531:en" type="undated"><std-ref>ISO 2531</std-ref></std> and <std std-id="iso:std:iso:16631:en" type="undated"><std-ref>ISO 16631</std-ref></std>.</p><p>Studies on economic and environmental impacts are important for utility decision-makers as they seek to balance budget concerns over immediate and long-term needs across acquisition, operation and maintenance, and planned end of life. For authorities and engineers designing pipeline systems, the environmental life cycle assessment serves as a tool to study various scenarios to determine the right solution for site-specific conditions and community values, as well as provide the necessary data to support those decisions.</p>
Komité: ISO/TC 131/SC 6 (Contamination control)
Opprinnelse: ISO
Sluttdato: 1. nov 2021
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<p>This document specifies procedures for the following:</p><list list-type="alpha-lower"><list-item><label>a)</label><p>primary particle-sizing calibration for particle sizes 1 µm(c) and larger, sensor resolution and counting performance of liquid automatic particle counters that are capable of analysing bottle samples;</p></list-item><list-item><label>b)</label><p>secondary particle-sizing calibration using suspensions verified with a primary calibrated APC;</p></list-item><list-item><label>c)</label><p>establishing acceptable operation and performance limits;</p></list-item><list-item><label>d)</label><p>verifying particle sensor performance using a test dust;</p></list-item><list-item><label>e)</label><p>determining coincidence and flow rate limits.</p></list-item></list><p>This document is applicable for use with hydraulic fluids, aviation and diesel fuels, engine oil and other petroleum-based fluids. This document is not applicable to particle-sizing calibration using NIST SRM 2806b primary calibration suspensions.</p>
Komité: ISO/TC 131/SC 6 (Contamination control)
Opprinnelse: ISO
Sluttdato: 4. nov 2021
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<p>This International Standard defines the gravimetric method for determining the contamination level of fluids used in hydraulic fluid power systems.</p><p>This working instruction serves for the gravimetric determination of dirt content of pressure fluids from mineral oil with additives they are used in hydraulic systems with hydrostatic drive.</p>
Komité: CEN/TC 69 (Industrial valves)
Opprinnelse: SN
Sluttdato: 2. des 2021
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This document provides basic requirements for pneumatic part-turn valve actuators, both double acting and single acting, used for on-off and modulating control duties. It includes guidelines, recommendations and methods for enclosure and corrosion protection, control and testing. It does not apply to pneumatic actuators which are integral parts of control valves and to pneumatic actuators designed for permanent immersion in fresh or sea water. Other requirements, or conditions of use, different from those indicated in this document, are expected to be subject to negotiations, between the purchaser and the manufacturer/supplier, prior to order.
Komité: CEN/TC 69 (Industrial valves)
Opprinnelse: SN
Sluttdato: 2. des 2021
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This document provides basic requirements for piston type hydraulic linear actuators for industrial valve, both double acting and single acting, used for on-off and modulating control duties. It includes criteria, method and guidelines for design, qualification, corrosion protection, control and testing. It does not apply to hydraulic actuators which are integral parts of control valves. Other requirements, or conditions of use, different from those indicated in this document, are expected to be subject to negotiations, between the purchaser and the manufacturer/supplier, prior to order.