T/ZJASE 012-2021 Active Group standards

T/ZJASE 012-2021 Direct Load Safety Valve Online Calibration Procedures

Publish Date: 2021-10-21 Implement Date: 2021-12-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/ZJASE 012-2021

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Mechanical

ICS Name: Overvoltage protection

Publish Date: 2021-10-21

Implement Date: 2021-12-01

Scope

Scope: This document specifies the scope, terms, and definitions of online calibration of direct load-type safety valves, general requirements, implementation of online calibration, and basic requirements for recording and sealing reports. Other types of safety valves may be partially referenced for implementation. This document applies to steam safety valves with a set pressure of 0.1MPa to 42.0MPa and a flow channel diameter of greater than or equal to 15mm, and gas and liquid safety valves with a diameter of greater than or equal to 7mm. This document applies to safety valves with a media temperature of not less than -29℃ during discharge. Main technical content: 1. Terms and definitions specify the meaning and representation methods of the specialized terms used in this specification. 2. General requirements stipulate requirements for personnel, venues, quality assurance systems, on-site environment and safety during online calibration of safety valves, implementation of online emergency jump calibration, implementation of auxiliary lifting force online calibration, data processing, and calibration cycle. 3. Calibration records, sealing, and reports specify the timing and requirements for filling out calibration records, the issuance process, etc. 4. Related appendices provide format templates for the Safety Valve Declaration Form, Original Safety Valve Records, and Safety Valve Calibration Reports for reference by units applying the standard.