Standard No.:	JB/T 7550-2007
English Name:	Switching butterfly valves for air separation plants
Chinese Name:	空气分离设备用切换蝶阀
Chinese Classification:	J76    Gas separation and liquefaction equipment
Professional Classification:	JB    Professional Standard - Machinery
ICS Classification:	71.100.20 71.100.20    Gases for industrial application 71.100.20
Issued by:	SDPC
Issued on:	2007-1-25
Implemented on:	2007-7-1
Status:	superseded
Superseded by:	JB/T 7550-2023 Switching butterfly valves for air separation plants
Superseded on:	2024-2-1
Superseding:	JB/T 7550-1994
Language:	English
File Format:	PDF
Word Count:	5000 words
Price(USD):	150.00
Delivery:	via email in 1~3 business day

本标准规定了气动双位式切换蝶阀的术语、基本参数、技术性能、技术要求、试验方法、试验规则及标志、包装、运输和贮存。本标准适用于大、中、小型空气分离设备中气体切换，公称压力1）（PN）为0.6MPa~1.0MPa、公称通径为（DN）为50mm~1200mm切换蝶阀