Industrial valve manufacturing records from real project work.
Review selected machining, assembly and inspection records by valve type. Each case links to the complete project record and the documented production scope.
Project Case Studies
DN300 PN100 20CrMoV Power Station Gate Valve
Manufacturing, assembly and API 598 pressure-test record for a power station gate valve designed to NB/T 47044.
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10″ Class 150 Cast-Aluminum Dust Diverter Valve
Workshop assembly record showing the three-port cast-aluminum body, rotary plug and pneumatic actuator fit-up for dust-conveying service.
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DN400 PN25 WCB Double-Disc Wedge Gate Valve
Workshop assembly record showing the double-disc wedge components, stem connection and completed DN400 PN25 WCB valve.
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8″ Class 2500 A105 Wedge Gate Valve
Assembly and inspection record for an ASTM A105 forged steel wedge gate valve with ASME B16.25 butt-welding ends and API 598 testing.
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8″ Class 900 F91 Parallel Double-Disc Gate Valve
Production case of an A182 F91 parallel double-disc gate valve for high-temperature steam service, designed to NB/T 47044 and tested to API 598.
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8″ Class 300 WC6 Parallel Double-Disc Gate Valve
Assembly record covering the parallel double-disc closure, internal positioning, bonnet and stem connection, with API 598 pressure testing.
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2″ Class 600 Forged Slab Gate Valve
Internal assembly record covering the stem-to-gate connection, sealing components and internal positioning.
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Small-Bore Forged Steel Slab Gate Valve
Manufacturing and assembly record covering closure-component preparation, machining, valve-body preparation and API 598 pressure testing.
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10″ Class 300 A105 Pigging Valve
Manufacturing record covering body machining, closure assembly, internal components and bypass installation.
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DN400 × DN300 10 MPa F304 Pump Protection Valve
Manufacturing and assembly record for boiler feedwater, cooling water and condensate equipment.
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6″ Class 300 F316 Top-Entry Cryogenic Ball Valve
Manufacturing and internal assembly record with liquid nitrogen verification at −196°C for LNG service.
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8″ Class 150 CF8 Pneumatic Control Valve
Assembly record designed to ASME B16.34 with ASME B16.10 face-to-face, ASME B16.5 flanges and API 598 testing.
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