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2. Ball valve - Wikipedia

   en.wikipedia.org/wiki/Ball_valve

   The maximum working pressure of high-pressure ball valves can be up to 15,000 psi (1,000 bar). High-pressure ball valves are often used in hydraulic systems, so they are also known as hydraulic ball valves. Ball valves in sizes up to 2 inches (51 mm) generally come in a single piece, two or three-piece designs.

3. List of valves - Wikipedia

   en.wikipedia.org/wiki/List_of_valves

   The inside of an extremely large butterfly valve Duplex ball valve Three check valves in corrosion-resistant Hastelloy Stainless steel gate valve. Valves can be categorized into the following types, based on their operating mechanism: Ball valve, for on–off control without pressure drop. Ideal for quick shut-off, since a 90° turn completely ...

4. B16 Standardization of Valves, Flanges, Fittings, and Gaskets

   en.wikipedia.org/wiki/B16_Standardization_of...

   Some of which includes the Boiler and Pressure Vessel Code (BPVC), Elevators and Escalators (A17 Series), Piping and Pipelines (B31 Series), Bioprocessing Equipment , Nuclear Facility Applications , Process Performance Test Codes (PTC), and Valves, Flanges, Fittings and Gaskets (B16).

5. Piping and plumbing fitting - Wikipedia

   en.wikipedia.org/wiki/Piping_and_plumbing_fitting

   Valves are available in several types, based on design and purpose: Gate, plug, or ball valves – Isolation; Globe valve – Throttling; Needle valve – Throttling, usually with high precision but low flow; Butterfly or diaphragm valves – Isolation and throttling; Check valve – Preventing reverse flow (non-return)

6. Why the Royal Kids Might Not Be Allowed to Keep Some of Their ...

   www.aol.com/why-royal-kids-might-not-130400241.html

   The royal kids might not be allowed to keep some of their Christmas presents from the public this year thanks to the family's strict rules about gift giving.

7. Steel grades - Wikipedia

   en.wikipedia.org/wiki/Steel_grades

   American steel grades : AISI/SAE steel grades standard; British Standards; International Organization for Standardization ISO/TS 4949:2016; European standards – EN 10027; Japanese steel grades : Japanese Industrial Standards (JIS) standard and NK standard; Germany steel grades : DIN standard; China steel grades : GB standard; Czech steel ...