T/ZZB 2044-2021 The press-fit connection of coated carbon steel pipes and fittings
T/ZZB 2044-2021 The press-fit connection of coated carbon steel pipes and fittings
Basic Information
Scope
Main technical content: This document specifies the terms and definitions, classification and basic parameters, basic requirements, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage, and quality commitments for press-fitted connection coated carbon steel pipes and fittings. This document is applicable to press-fitted connection coated carbon steel pipes and fittings (hereinafter referred to as steel pipes and fittings) with a nominal size not exceeding DN 200 mm, a nominal pressure not exceeding 1.6 MPa, an operating temperature not exceeding 70 °C, and an operating medium of non-potable water, gas, and compressed air. This document can also be applied to coated carbon steel pipes and fittings for electrical wire conduits.