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The ANSI/APSP (Association of Pool & Spa Professionals) standards used for pools, spas, hot tubs, barriers, and suction entrapment avoidance. The ANSI/HI (Hydraulic Institute) standards used for pumps. The ANSI for eye protection is Z87.1, which gives a specific impact resistance rating to the eyewear. This standard is commonly used for shop ...
Maximum Allowable Operating Pressure (MAOP) is a pressure limit set, usually by a government body, which applies to compressed gas pressure vessels, pipelines, and storage tanks. For pipelines, this value is derived from Barlow's Formula , which takes into account wall thickness, diameter, allowable stress (which is a function of the material ...
Common world standards include ASA/ASME (USA), PN/DIN (European), BS10 (British/Australian), and JIS/KS (Japanese/Korean). In the USA, the standard is ASME B16.5 (ANSI stopped publishing B16.5 in 1996). ASME B16.5 covers flanges up to 24 inches size and up to pressure rating of Class 2500. Flanges larger than 24 inches are covered in ASME B16.47.
Ductile iron pressure pipes with socket with cement-mortar lining for gas and water pipelines; dimensions and masses: Withdrawn: DIN EN 545, DIN EN 969: EN 545, EN 969: DIN 28610-2: Ductile iron pressure pipes with socket for gas and water pipelines rated for pressures over 4 bar up to and including 16 bar; dimensions and masses: Withdrawn: DIN ...
Class II valves have no more than 0.5% leakage with 50 psi (340 kPa) (or less if operating pressure is less) of air pressure at the operating temperature; Class III valves have no more than 0.1% leakage under those conditions; this may require soft valve seats, or lapped metal surfaces; Class IV valves have no more than 0.01% leakage under ...
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The pressure vessels can be either fired or unfired. [17] The pressure may be from external sources, or by the application of heating from an indirect or direct source as a result of a process, or any combination of the two. [18] The rules contained in this section can be used as an alternative to the minimum requirements specified in Division 1.
In electric power systems and industrial automation, ANSI Device Numbers can be used to identify equipment and devices in a system such as relays, circuit breakers, or instruments. The device numbers are enumerated in ANSI / IEEE Standard C37.2 Standard for Electrical Power System Device Function Numbers, Acronyms, and Contact Designations .