How a Double Disc Gate Valve is Made | DN400, PN65 | Full Manufacturing Process

Video   10-10,2025

Witness the full manufacturing journey of a DN400, PN63 double disc gate valve. In just 40 seconds, see how a rough casting is transformed into a critical industrial component, achieving a 100% first-pass pressure test success rate with zero leakage.

 

This video covers the four key stages:

Stage 1: Rough Machining - Foundation work

Stage 2: Precision Machining - Sealing surface milling with our Niigata FC machining center

Stage 3: Assembly - Meticulous component fitting

Stage 4: Pressure Testing - 100% pass rate, zero leaks

 

Key highlights in this process:

- Core manufacturing steps for industrial valves.

- Application of high-precision machinery (Niigata FC machining center).

- Our strict quality control ensuring 100% reliability.