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  Type testing project for rotary compensators

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  What are rotary compensators?

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  Key points for heat treatment of quenched and tempered steel

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  Heat treatment process of quenched and tempered steel

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  Common quenched and tempered steels

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  Tempered steel’s working conditions, performance requirements, and characteristics

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  Weld reinforcement for cryogenic vessels

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  Type testing of cryogenic valves in pressure piping components

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  法兰

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  Haihao Group successfully completes hydrostatic test for customized pipe fitting

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  Introduction to ASME B16.9 A420 WPL6 45° short radius elbows

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  Design pressure and design temperature in chemical pipelines

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  Selection criteria for safety valves

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  Differences between top flat eccentric reducers and bottom flat eccentric reducers

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  Understanding weld reinforcement and its hazards

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  Pipeline pressure testing requirements and procedures

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  The connection and difference between API and ASME standards

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  UAE customer places order with Haihao Group for high-quality pipe fittings and flanges

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  Haihao Group delivers quality pipe fittings to Shanghai client

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  Haihao Group produces high-quality pipeline system components for Bangladeshi customer

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  Haihao Group ships high-quality pipeline products to UK Customer

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  Premium ASTM A333 Gr.6 Seamless Steel Pipes by Haihao Group

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  MSS SP-97 ASTM A105N Sockolet

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  Introduction to flat face and raised face flanges