At Seiko Valves, precision engineering and quality craftsmanship define our manufacturing process. Through 12 meticulously controlled stages, we ensure every brass and alloy component meets the highest standards of accuracy, durability, and performance.
From industrial valves to custom-engineered assemblies, our products are built to support demanding applications across global markets. With a commitment to consistency and innovation, Seiko Valves delivers trusted solutions that power industries worldwide.
Every part begins with a plan. Seiko Valves engineers design tooling and components using advanced CAD/CAM systems integrated with our machining operations. Tool paths, tolerances, and material specs are built into the design from day one.
Our in-house tool room brings these digital models to life with CNC lathes, mills, and grinders that craft high-performance tools for every job.
To ensure long-term reliability and dimensional stability, cast or forged parts undergo heat treatment.
Stress relieving helps minimize internal strain from forming processes, improving machinability and enhancing grain structure integrity.
Before machining, raw parts are cleaned using blasting methods such as glass bead and shot blast.
These processes remove scale, oxides, and irregularities while improving the material’s surface profile for tighter machining tolerances and better coating adhesion.
Our machining floor is the heart of production. Using multi-axis CNC machines—from Emco Maier to Doosan and Makino—we mill, turn, drill, and thread parts with tolerances down to a few microns.
Live tooling, twin spindles, Y-axis capabilities, and bar feeders allow simultaneous operations, minimizing setups and maximizing output.
For high-volume parts, we turn to multi-spindle screw machines. Wickman automatics with CNC cross-slides machine multiple components simultaneously, slashing production times while maintaining strict dimensional accuracy.
This technology excels in delivering consistent parts for critical assemblies at scale.
Our chucker machines, like Kingsbury and Gozio trunnion transfer systems, offer unmatched versatility in producing intricate parts.
Holding workpieces firmly in place, these machines execute multiple operations in a single setup, essential for producing complex components that demand precision and repeatability.
Sharp edges? Burrs? Not in our final products.
We remove any remnants from machining manually or via automated equipment. This ensures safe handling, precise fitment, and component longevity. Clean, polished parts perform better and last longer.
Our aqueous and solvent-based systems clean parts to industry-specific standards.
Using technologies like ultrasonic tanks, centrifuges, and oil separation systems, we eliminate all machining residues. The result? Pristine components, ready for coating, assembly, or delivery.
We don’t just machine parts—we manage the waste they create.
Seiko Valves recovers and processes chips through shredding, wringing, and briquetting. These recycled chips are compressed, coolant is reclaimed, and waste is minimized—protecting both your budget and the environment.
From valves to finished assemblies, we offer full in-house assembly.
Seiko Valves combines machined parts into tested, pressure-tight products for industries including fire protection, HVAC, and energy. All components undergo functional and dimensional inspections to ensure peak performance.
Before any part ships, it’s scrutinized under our ISO 9001-certified quality system.
We use CMMs, optical comparators, and surface gauges to confirm dimensional integrity, functionality, and visual standards. If it doesn’t meet our benchmarks—it doesn’t leave the building.
Seiko Valves offers an end-to-end manufacturing solution. From raw materials to clean, tested assemblies—our vertically integrated operation is built for precision, efficiency, and reliability.
We invite you to see the process for yourself.
From drawing board to delivery—we machine confidence into every part.
