通用金属蝶阀检测

通用金属蝶阀检测项目报价？  解决方案？  检测周期？  样品要求？

点 击 解 答

GSO ISO 10631-2013通用金属蝶阀

This International Standard specifies the requirements for metallic butterfly valves — with centred or eccentric disc, — with centred or eccentric shaft, — with metallic, polymeric, elastomeric or composite seating, — with lined or unlined body, — coated or uncoated, to be used in flanged or butt-welded piping systems for shut-off, throttling or flow control. It covers butterfly valves with nominal diameters DN 40; 50; 65; 80; 100; 125; 150; 200; 250; 300; 350; 400; 450; 500; 550; 600; 650; 700; 750; 800; 900; 1 000; 1 200; 1 400; 1 600; 1 800; 2 000; and is applicable to valves of nominal pressure PN 2,5; 6; 10; 16; 20; 25; 40; 50.

DIN EN 593-2018工业阀门.通用金属蝶阀;德文版本EN 593-2017

This European Standard specifies minimum general requirements for butterfly valves having metallic bodies for use in wafer, lug, flange or butt welding piping systems and used for isolating, regulating or control applications. The PN and Class ranges are: - PN 2,5; PN 6; PN 10; PN 16; PN 25; PN 40; PN 63; PN 100; PN 160; - Class 150; Class 300; Class 600; Class 900. The DN range is: - DN 20; DN 25; DN 32; DN 40; DN 50; DN 65; DN 80; DN 100; DN 125; DN 150; DN 200; DN 250; DN 300; DN 350; DN 400; DN 450; DN 500; DN 600; DN 700; DN 750; DN 800; DN 900; DN 1000; DN 1100; DN 1200; DN 1400; DN 1500; DN 1600; DN 1800; DN 2000; DN 2200; DN 2400; DN 2600; DN 2800; DN 3000; DN 3200; DN 3400; DN 3600; DN 3800; DN 4000.

DIN EN ISO 28921-2-2017工业阀门.低温应用的隔离阀.第2部分:型式测试(ISO 28921-2-2015);德文版本EN ISO 28921-2-2017

This part of ISO 28921 specifies requirements for the type testing of isolating valves for low-temperature applications to verify the performance of valves at a low temperature from -50 °C down to -196 °C. NOTE Nominal sizes (DN), nominal pipe sizes (NPS), nominal pressure (PN) and Classes are covered in ISO 28921-1. This part of ISO 28921 does not evaluate valve actuators unless they are integral part of the valve. Valves during testing can be operated manually or an actuator can be used during the testing. The effect of cold gas vapours during testing is taken into consideration in particular if the actuator is mounted directly over the test stand with the cold gases engulfing the actuator. This part of ISO 28921 does not apply to valves for cryogenic services, designed in accordance with ISO 21011, used with cryogenic vessels.