Tianjin Runke Plastic Tech. Co., Ltd. operates a dedicated manufacturing base for thermoplastic valves and pipe fittings, producing UPVC / PVC-U valves and fittings for water supply projects worldwide. From raw material intake to final pressure testing, every production step is handled in-house — injection molding, CNC machining, assembly and quality inspection — giving us full control over quality and lead time.
Our Manufacturing Capabilities
Injection molding workshop — precision molding of PVC-U valve bodies and fittings with dedicated molds for DIN, ANSI and JIS standard series.
CNC machining center — threading, sealing-surface and dimensional finishing to tight tolerances for reliable, leak-free assembly.
Assembly & testing lines — every valve is assembled by trained technicians and individually pressure-tested before packing.
Warehouse & logistics — large stocking capacity for fast delivery of standard DIN / ANSI / JIS items and OEM orders.
OEM / ODM service — custom logos, colors, packaging and special dimensions supported by our own tooling workshop.
Customers are welcome to visit our factory in Tianjin, or request a live video factory tour — contact us to arrange a convenient time.
Company Facts (official 2022 catalogue)
Plastic-valve specialist since 2003 — VAV™ brand (Very Advanced Valve)
20 mu plant, 2 standard workshops, 9,200 m² total floor area, 50+ staff
10 large injection-molding machines, 30+ machining units, 4 seal-test rigs
50+ product specifications · 600,000 valves per year
Patented seat-body integral valve structure — China patent ZL 03 2 577 46.X (granted 2004)
Three butterfly-valve generations (2003 / 2008 / 2022) — every valve 100% pressure-tested at 1.1 × rated pressure
