High-Draw Downstream Injector

The General Pump downstream injector 100873 features a 1/4-inch hose barb. It is made with stainless steel for superior corrosion resistance and strength. This high-draw injector is engineered to endure a maximum pressure of 5500 PSI and handle a flow rate ranging from 2-3 GPM. If you need to use heated water, this General Pump injector can handle a maximum fluid temperature of 190 degrees Fahrenheit. It can be used with pressure washers and car washes.

Specifications:

• Manufacturer Product Model: 100873
• Flow Range: 2-3 GPM
• Maximum Pressure: 5500 PSI
• Maximum Temperature: 190° F
• Inlet Port: 3/8" NPT-M
• Outlet Port: 3/8" NPT-M
• Hose Barb: ¼"
• Orifice: 2.1 mm
• Temperature: 190° F
• Material: Stainless Steel
• O-Ring Material: Viton
• Dimensions: 2.2” x 1.15” 1.9”

Applications:

• Car Washes
• Pressure Washers

Installation:

• Install valve with direction arrow pointing downstream. For proper operation a control device such as a dual lance wand, quick couple nozzles, or an adjustable nozzle holder must be used to lower the system pressure at the nozzle. Warning: Under no circumstances should the system pressure exceed the maximum rated pressure of any component.

Troubleshooting:

• Injector will not draw liquid
  • Cause:
    • Incorrect nozzle
    • The system is not in low-pressure mode
    • Discharge hose is too long 
    • Chemical line is clogged
  • Solution:
    • Check and change the nozzle
    • Change or adjust the nozzle to put the system in low-pressure mode
    • Reduce the length of the discharge hose or change the injector
    • Clear chemical line of obstruction
• Rate of draw seems too slow
  • Cause:
    1. Discharge hose is too long
    2. Air leak in chemical line
    3. Chemical is too viscous
  • Solution:
    1. Reduce the length of the discharge hose or change the injector
    2. Locate and repair the leak
    3. Reduce the chemical with water to decrease viscosity
• Chemical injector is leaking from hose barb
  • Cause:
    • Obstruction in hose barb check valve
    • Damaged O-ring in check valve
  • Solution:
    1. Disassemble and remove obstruction
    2. Remove and replace O-ring
• Excessive pressure load on pump, motor, or engine
  • Cause:
    1. Clogged injector
    2. Improperly sized injector orifice
  • Solution:
    1. Clear injector orifice of obstruction
    2. Change orifice