The 3/8″ Fixed Acid Chemical Injector (Model 6633) is a high-performance downstream injector designed for use with acidic and low pH chemical solutions. With a 2.3mm fixed orifice, this injector provides consistent chemical draw across systems operating in compatible GPM and PSI ranges, making it ideal for softwash, fleet washing, and equipment cleaning applications.

Built from acid-resistant materials, the 6633 injector is suited for harsh environments and designed to be integrated into downstream injection setups with reliability and safety.

Key Features:

• Inlet/Outlet Size: 3/8″ Male NPT

• Fixed Orifice: 2.3mm for consistent draw rate

• Chemical Use: Ideal for acid-based and low pH solutions

• Material: Acid- and corrosion-resistant body

• Application: Softwash, downstream injection, commercial cleaning

• No adjustment needed – fixed ratio design

• Compatible with injector bypass kits and chemical selector manifolds

Specifications:

• Model: 6633

• Thread Type: 3/8″ Male NPT

• Orifice Size: 2.3mm

• Flow Range: Approx. 2.5–5.5 GPM (varies by PSI)

• Max Pressure: Up to 4000 PSI

• Temperature Rating: Up to 180°F

• Draw Rate: Fixed (approx. 10–20%)

• Media Compatibility: SH not recommended; best for acids and degreasers