Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: ASTM F1793-97(2016)E1
• Năm ban hành / Publication date: 2016
• Tình trạng / Status: W - Hết hiệu lực
• Tên tiếng Anh / Title in English: Standard Specification for Automatic Shut-Off Valves (Also Known as Excess Flow Valves, EFV) for Air or Nitrogen Service
• Chỉ số phân loại Quốc tế (ICS) / By field: 23.060.01 - Van nói chung
• Số trang / Page: 7

Phạm vi áp dụng / Scope of standard

1.1 This specification covers self-contained automatic shut-off valves (also known as excess flow valves) for air or nitrogen service. They are intended to be installed as safety devices to quickly and automatically shut off flow under certain excess flow conditions caused by a downstream failure or casualty, such as a hose rupture.

1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.