有哪些信誉好的足球投注网站- 1、本文档共16页，可阅读全部内容。
- 2、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。
- 3、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击 这里二次下载。
- 4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。
查看更多
dot4l-1999焊接绝热气瓶
Specification DOT-4L(HSE)
Welded Insulated Cylinders
Issue 3 March 1999.
I:\THSDA5\HARRY\CYL1 Iss 3 March 1999
Contents
1.0 Type, size and service pressure and design service temperature.
2.0 Certificate of Compliance.
3.0 Duties of Inspector.
4.0 Material.
5.0 Identification of Material.
6.0 Defects.
7.0 Manufacture.
8.0 Welding.
9.0 Wall Thickness.
10.0 Heat Treatment.
11.0 Openings in Cylinder.
12.0 Safety Relief Devices and Protection for Valves, Safety Devices and Other
Connections.
13.0 Pressure Test.
14.0 Physical Test.
15.0 Radiographic Examination.
16.0 Rejected cylinders.
17.0 Authorised materials of construction.
18.0 Markings.
19.0 Inspectors report.
Appendix 1 Inspectors report form.
I:\THSDA5\HARRY\CYL1 Iss 3 March 1999
1.0 Type, size, service pressure and design service temperature.
1.1 A DOT 4L(HSE) cylinder is a fusion welded insulated cylinder with a water
capacity (nominal) not over 454 kg (1000 pounds) and a service pressure of at least 2.76 bar
(40 p.s.i.g.) but not greater than 34.5 bar (500 p.s.i.g.) conforming to the following
requirements:
1.1.1 For liquefied hydrogen service, the cylinders must be designed to stand on end, with
the axis of the cylindrical portion vertical.
1.1.2 The design service temperature is the coldest temperature for which a cylinder is
suitable. The required design service temperatures for each cryogenic liquid is as follows:
Cryogenic liquid Design service temperature
o 0
文档评论（0）