Standard No.:	JB/T 7252-2018
English Name:	orifice throttling device
Chinese Name:	阀式孔板节流装置
Professional Classification:	JB    Professional Standard - Machinery
Issued by:	Ministry of Industry and Information Technology
Issued on:	2018-12-21
Implemented on:	2019-10-1
Status:	valid
Superseding:	JB/T 7252-1994 Valve Type Orifice Plate Throttling Devices
Language:	English
File Format:	PDF
Word Count:	8500 words
Price(USD):	324.00
Delivery:	via email in 1~3 business day

本标准规定了阀式孔板节流装置的术语和定义、型号编制和结构型式、技术要求、检验和试验方法、检验规则、标志、包装和贮存。
本标准适用于公称压力PN16～PN250、公称尺寸DN50～DN700，压力等级Class150～Class1500、公称尺寸NPS2～NPS28，适用温度-29℃～121℃，适用介质为天然气、煤层气、水、轻质油、轻烃等，采用标准孔板作为节流件，取压方式为法兰取压的阀式孔板节流装置。