tailieunhanh - Machinery Components Maintenance And Repair Episode 1 Part 7

Tham khảo tài liệu 'machinery components maintenance and repair episode 1 part 7', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Appendix 3-E Specification and Installationof Pregrouted Pump Baseplates This appendix or standard procedure outlines the requirements for specifying and installing pregrouted machinery baseplates. However this standard does not cover the installation requirements for machinery mounted on sole plates. A typical application for this standard procedure would be the installation or retrofit of an ANSI or API pump. I. Purpose The purpose of the standard procedure is to provide specific requirements for prefilling any machinery baseplate or in particular a pump baseplate with epoxy grout and machining the mounting surfaces of the baseplate after the grout has cured. Additionally the standard procedure outlines the requirements for installing the pregrout baseplate in the field utilizing a special grouting technique for the final grout pour. This special technique makes use of a low-viscosity epoxy grout for the final pour. The technique greatly reduces the field costs associated with traditional installation methods. By utilizing this standard procedure baseplate-mounted machinery can be installed with zero voids eliminating the possibility of expensive field machining and reducing field installation costs by 40 to 50 percent. 140 Machinery Foundations and Grouting 141 II. Specification of Pregrouted Baseplates 1. The underside of the baseplate to be pregrouted must be sandblasted to white metal to remove all existing paint primer or scale. 2. Any tapped bolt holes that penetrate through the top of the baseplate such as the coupling guard holding down bolts must be filled with the appropriate-sized bolts and coated with never-seize to create the necessary space for bolt installation after grouting of the baseplate. 3. Anchor bolt or jack bolt holes located inside the grouted space of the baseplate must have provisions for bolt penetration through the baseplate after grouting. 4. If the baseplate has grout holes and or vent holes these holes must be completely sealed .