Yamato WA Series Type 1 Ultrapure Water Systems

Yamato WA Series Type 1 Ultrapure Water Systems deliver reliable, high-quality reagent water on demand with a compact, low-maintenance design. Designed and made in the USA, these systems produce up to 4 liters per minute of ultrapure 18.2 megohm water — exceeding ASTM Type I standards. Ideal for laboratories requiring ultrapure water for sensitive analytical applications.

Whether you need basic Type 1 water or additional TOC and endotoxin reduction, the WA Series offers the right configuration for your lab:

• WA401 – 0.2 micron filter, standard ultrapure system
• WA401UV – Adds UV lamp for TOC destruction and bacterial control
• WA201UF – Ultrafilter (0.05 micron) for endotoxin-sensitive applications
• WA201UVUF – Ultrafilter + UV lamp for maximum purity and safety

Features:

• Made in the USA
• Delivers up to 4 LPM of 18.2 MΩ-cm ultrapure water
• Compact and quiet benchtop system with built-in recirculation pump
• Low cost of ownership with fresh, easy-to-replace cartridges
• Quick-change cartridges require no tools
• Built-in pressure regulator for consistent performance
• 0.2µm filter standard – upgrade to UF (0.05µm) and UV options as needed

Specifications

• Models: WA401, WA401UV, WA201UF, WA201UVUF
• Influent Requirements:
  • Source: RO, DI, or Distilled water
  • Purity: < 20 µS/cm
  • Free Chlorine: < 0.05 ppm
  • TOC: < 50 ppb
  • Silica: < 2 ppm
• Product Water Quality:
  • Resistivity: > 18.2 MΩ-cm
  • Microorganisms: < 10 CFU/mL
  • Sodium: < 1 ppb
  • Chlorides: < 1 ppb
  • With UF: Endotoxin < 0.03 EU/mL
• Flow Rate: 4.0 LPM (1.1 GPM); 2.0 LPM with capsule filter
• Operating Pressure: 20–90 PSIG
• Temperature Limit: Max 100°F / 30°C
• Connections: Inlet 3/8" tube, Outlet 1/4" FNPT
• Dimensions (HxWxD): 25" x 23" x 8.5" (64 x 59 x 22 cm)
• Weight: 32 lbs dry / 38 lbs operating
• Power Requirements: 120V, 60 Hz, 1.0 A
• Housing: Powder-coated steel

Optional Accessories

• Remote dispensing gun
• 0.05 µm hollow fiber ultrafilter
• Combination high-purity/sub-micron cartridge
• Direct feed for auxiliary equipment

Why Choose the WA Series?

• Reliable on-demand ultrapure water
• Compact and easy to maintain
• Multiple configurations to match lab needs
• Cartridges made in the USA with 1-year shelf life
• Eco-conscious manufacturing and 1-year warranty included