TAILIEUCHUNG - Process Engineering Equipment Handbook 2009 Part 4

Tham khảo tài liệu 'process engineering equipment handbook 2009 part 4', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | FIG. C-66 Typical compressor selection charts. Source Sulzer-Burckhardt. C-90 Compressors C-91 FIG. C-67 Typical features in an API 618 reciprocating compressor. Source Sulzer-Burckhardt. stroke limiters that are not cast but machined as well as frictionless guided plates with low lift and good fatigue properties. This OEM has its own compressor valve production facility. This ensures high reliability and availability of the valves and compressors. The valves fulfill the requirements of ISO 8012 API 618 and the European Standard on compressor safety. They are designed to prevent inadvertent wrong assembly into the cylinder. See Fig. C-73. Suction valves may be equipped with unloading devices for continuous or stepped capacity control. Special tools. Together with each compressor the OEM supplies a set of special tools to simplify routine service like the device to conveniently assemble and install valves for certain sizes of horizontal compressors or the hydraulic tools allowing the proper fastening of vital connections. See Fig. C-74. Piston rod packing. The packing to seal piston rod and cylinder consists of several stacked rings designed as a cartridge for ease of maintenance. Packing rings are made of PTFE or other newly developed compounds as well as sintered metal. They are subject to stringent quality requirements and feature minimum gas leakage low friction losses and minimum wear. See Fig. .

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