This document specifies the basic parameters, product models and structural types, basic requirements, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of cartridge mechanical seals for vertical multi-stage pumps (hereinafter referred to as mechanical seals) and quality commitment. This document is applicable to cartridge mechanical seals for vertical multi-stage pumps whose media are clean water, oil and general corrosive liquids.
T/ZZB 3132-2023 history
2023T/ZZB 3132-2023 Cartridge mechanical seal of vertical multistage pump