PNR 1/4" MNPT 40° 20.0 Brass Soaper Nozzle – Pressure Washer Chemical Spray Nozzle
Part Number: 7654
Category: Pressure Washer Accessories → Spray Nozzles → Chemical & Soaper Nozzles
Type: PNR 1/4" MNPT 40° 20.0 Brass Soaper Nozzle – Pressure Washer Chemical Spray Nozzle
The PNR Brass Soaper Nozzle (Part #7654) 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 20.0 orifice, this nozzle delivers a controlled low-pressure chemical spray that provides excellent detergent coverage while maintaining efficient chemical draw for medium- to high-flow pressure washer systems.
Key Features & Benefits
- Genuine PNR brass chemical spray nozzle
- Part Number: 7654
- Designed for low-pressure detergent application
- 40° fan spray pattern for controlled coverage
- 20.0 orifice size
- 1/4" MNPT connection
- Corrosion-resistant brass construction
- Ideal for soaps, detergents, degreasers, and disinfectants
- Compatible with downstream chemical injector systems
- Suitable for medium- and high-flow pressure washer systems
- OEM-quality construction for long service life
Technical Specifications
Part Number: 7654
Manufacturer: PNR
Product Type: Chemical / Soaper Spray Nozzle
Thread Size: 1/4" MNPT
Spray Pattern: 40°
Orifice Size: 20.0
Nozzle Size: 20.0
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
- Fleet washing
- Vehicle detailing
- Heavy equipment cleaning
- Building exterior cleaning
- Agricultural and industrial cleaning
Always verify thread size, nozzle size, and your pressure washer's flow requirements before ordering.
Function of the Soaper Nozzle
The PNR 7654 soaper nozzle helps:
- Apply detergents and cleaning chemicals at low pressure
- Produce a controlled 40° fan spray pattern
- Deliver consistent chemical flow across large surfaces
- Improve detergent penetration before pressure rinsing
- Increase cleaning efficiency while minimizing chemical waste
Its 20.0 orifice provides a balanced combination of spray concentration and detergent output, making it suitable for a wide range of professional pressure washing applications.
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
- Poor detergent application performance
Replacing a worn nozzle restores proper spray coverage and consistent chemical application.
Installation & Service Notes
- Shut off the pressure washer and relieve system pressure before installation.
- Verify compatibility with the 1/4" MNPT connection and 20.0 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 should be used with compatible downstream chemical injector systems or pressure washer soap mode settings. Match the 20.0 orifice to your pressure washer's flow rate for optimum detergent application and performance.
Maintenance Recommendations
- Rinse the nozzle thoroughly with clean water after every use.
- Inspect the orifice regularly for mineral deposits, debris, or wear.
- Clean clogged nozzles using 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, chemical application efficiency, and long service life.
