PNR 1/4" MNPT 40° 10.0 Brass Soaper Nozzle – Pressure Washer Chemical Spray Nozzle
Part Number: 7689
Category: Pressure Washer Accessories → Spray Nozzles → Chemical & Soaper Nozzles
Type: PNR 1/4" MNPT 40° 10.0 Brass Soaper Nozzle – Pressure Washer Chemical Spray Nozzle
The PNR Brass Soaper Nozzle (Part #7689) is a genuine OEM chemical spray nozzle designed for applying soaps, detergents, degreasers, disinfectants, and other cleaning solutions through compatible pressure washer systems. Featuring a 40-degree fan spray pattern and a 10.0 orifice, this nozzle delivers a more concentrated low-pressure chemical spray than wider fan nozzles, making it ideal for targeted detergent application while maintaining excellent coverage.
Key Features & Benefits
- Genuine PNR brass chemical spray nozzle
- Part Number: 7689
- Designed for low-pressure detergent application
- 40° fan spray pattern for more concentrated coverage
- 10.0 orifice size
- 1/4" MNPT connection
- Corrosion-resistant brass construction
- Ideal for soaps, detergents, degreasers, and disinfectants
- Compatible with downstream chemical injector systems
- Durable OEM-quality construction for long service life
Technical Specifications
Part Number: 7689
Manufacturer: PNR
Product Type: Chemical / Soaper Spray Nozzle
Thread Size: 1/4" MNPT
Spray Pattern: 40°
Orifice Size: 10.0
Nozzle Size: 10.0
Material: Brass
OEM Replacement: Yes
Compatible Applications
Suitable for use with:
- Pressure washer spray wands
- Pressure washer lances
- Downstream chemical injector systems
- Residential pressure washers
- Commercial pressure washers
- Vehicle washing
- Equipment cleaning
- Building exterior cleaning
- Agricultural cleaning
- Industrial maintenance
Always verify thread size, nozzle size, and pressure washer flow requirements before ordering.
Function of the Soaper Nozzle
The PNR 7689 soaper nozzle helps:
- Apply detergents and cleaning chemicals at low pressure
- Produce a controlled 40° fan spray pattern
- Improve chemical penetration before pressure rinsing
- Deliver consistent detergent coverage
- Reduce chemical waste while improving cleaning efficiency
Its narrower 40° spray pattern provides more concentrated coverage than a 65° soaper nozzle, making it useful for applications where greater detergent impact is desired.
Common Signs Replacement Is Needed
Replace the nozzle if you notice:
- Uneven spray pattern
- Reduced chemical flow
- Worn or enlarged orifice
- Clogged nozzle
- Damaged threads
- Corrosion or physical damage
- Inconsistent detergent application
Replacing a worn nozzle helps restore proper chemical flow and uniform spray performance.
Installation & Service Notes
- Turn off the pressure washer and relieve system pressure before installation.
- Verify compatibility with the 1/4" MNPT connection and 10.0 orifice size.
- Apply thread sealant if recommended by the equipment manufacturer.
- Tighten the nozzle securely without overtightening the brass threads.
- Flush the nozzle thoroughly with clean water after each use to remove detergent residue.
- Inspect the nozzle regularly for wear or blockage.
Important: This nozzle is intended for low-pressure chemical application only and is designed for use with compatible downstream chemical injector systems or pressure washer soap mode settings.
Maintenance Recommendations
- Rinse the nozzle thoroughly after each use.
- Inspect the orifice periodically for mineral deposits or debris.
- Clean clogged nozzles with an approved nozzle cleaning tool—avoid using wire or sharp objects that can enlarge the orifice.
- Store the nozzle in a clean, dry location when not in use.
- Use only genuine OEM replacement nozzles to maintain proper spray pattern, detergent application performance, and long service life.
