Independent Component Reference

Pressure Washer Nozzle

Orifice size controls system load; spray angle controls surface intensity.

This profile maps fixed, multi-pattern and rotary pressure-washer nozzles using official ratings and practical pump, connector and surface gates.

Included

Fixed-angle quick-connect spray tips
Rotary and variable-pattern pressure-washer nozzles
Orifice, pressure, temperature, connection and surface checks

Excluded

Garden-hose nozzles
Airless paint tips
Nozzle substitutions without pump and unloader validation

First published 2026-08-12 · Last verified 2026-08-12

Physical resemblance, matching wattage, matching voltage, a generic family name or a seller claim does not establish compatibility. Verify the current manufacturer part number and revision, machine model and serial scope, mechanical, electrical and fluid interfaces, rated operating envelope, protection requirements and approved service documentation.

Simpson five-piece pressure washer nozzle set — Official Simpson 80146 nozzle-set image on a WCB canvas; the cited page specifies angle, orifice, pressure, temperature and connection scope. Official image source

Pressure Washer Nozzle key facts
Fact	Technical reference	Scope boundary
Calibrated outlet	Official product pages publish nozzle size, angle and pressure as separate selection variables	Named official product, model, market and document edition only; verify the current revision before procurement.
Connector boundary	Named consumer kits use a 1/4-inch quick-connect plug, but machine and wand scope still applies	Named official product, model, market and document edition only; verify the current revision before procurement.
Surface boundary	A rotary point jet raises cleaning intensity and is excluded from delicate surfaces	Named official product, model, market and document edition only; verify the current revision before procurement.

Functional boundary

Where the component sits in the larger system

This WCB flow describes documented functions, not one universal product construction.

01
Flow metering
The calibrated orifice establishes flow restriction at the operating pressure.
EvidenceThe cited official source supports this statement within its named product or document scope.
ScopeNamed official product, model, market and document edition only; verify the current revision before procurement.
Verified2026-08-12
Sourcessimpson-80146, simpson-catalog, karcher-5pc, karcher-turbo, karcher-power
02
Jet formation
Internal geometry shapes a point, fan, detergent or rotating jet.
EvidenceThe cited official source supports this statement within its named product or document scope.
ScopeNamed official product, model, market and document edition only; verify the current revision before procurement.
Verified2026-08-12
Sourcessimpson-80146, simpson-catalog, karcher-5pc, karcher-turbo, karcher-power
03
Surface energy distribution
Angle and stand-off distance change impact intensity and coverage.
EvidenceThe cited official source supports this statement within its named product or document scope.
ScopeNamed official product, model, market and document edition only; verify the current revision before procurement.
Verified2026-08-12
Sourcessimpson-80146, simpson-catalog, karcher-5pc, karcher-turbo, karcher-power
04
Accessory connection
The plug, thread or proprietary coupling retains and seals the nozzle.
EvidenceThe cited official source supports this statement within its named product or document scope.
ScopeNamed official product, model, market and document edition only; verify the current revision before procurement.
Verified2026-08-12
Sourcessimpson-80146, simpson-catalog, karcher-5pc, karcher-turbo, karcher-power

Architecture families

Different component architectures solve different constraints

No architecture is a universal winner, and a family label is not a replacement-part specification.

Simpson color-coded pressure washer spray tips — Official technical image
Official Simpson image showing fixed-angle 0°, 15°, 25°, 40° and soap nozzle families.
**How to use this visual**Use the photographed family only to understand documented construction context; do not infer exact product fit.
Official image source

Fixed-angle spray tip

Principle: A calibrated insert produces one documented fan or point angle.
Application boundary: Matched orifice and rated quick-connect system
Benefits: Simple identification and repeatable pattern
Limitations: Wrong size changes system pressure and cleaning result
Buyer check: Confirm the exact part number, installed system, interface and documented operating envelope.

EvidenceThe cited official source supports this statement within its named product or document scope.

ScopeNamed official product, model, market and document edition only; verify the current revision before procurement.

Verified2026-08-12

Sourcessimpson-80146, simpson-catalog, karcher-5pc, karcher-turbo, karcher-power

Multi-pattern selector

Principle: A rotating selector switches among several named patterns.
Application boundary: Named machine, pressure and connection scope
Benefits: Fewer loose tips
Limitations: Internal selector and seal condition affect performance
Buyer check: Confirm the exact part number, installed system, interface and documented operating envelope.

EvidenceThe cited official source supports this statement within its named product or document scope.

ScopeNamed official product, model, market and document edition only; verify the current revision before procurement.

Verified2026-08-12

Sourcessimpson-80146, simpson-catalog, karcher-5pc, karcher-turbo, karcher-power

Rotary turbo nozzle

Principle: A point jet rotates to combine concentrated impact with broader coverage.
Application boundary: Hard surfaces inside exact pressure and temperature limits
Benefits: High area performance on stubborn soil
Limitations: Can damage delicate surfaces and wears internal ceramic parts
Buyer check: Confirm the exact part number, installed system, interface and documented operating envelope.

EvidenceThe cited official source supports this statement within its named product or document scope.

ScopeNamed official product, model, market and document edition only; verify the current revision before procurement.

Verified2026-08-12

Sourcessimpson-80146, simpson-catalog, karcher-5pc, karcher-turbo, karcher-power

Specification dictionary

What component specifications do—and do not—mean

Pressure Washer Nozzle specification dictionary
Specification	Purchasing meaning	Reporting boundary	Comparison caution
Orifice size	Matches pump flow to pressure and unloader behavior	Retain manufacturer numbering method and operating point	A larger angle does not compensate for the wrong orifice.
Spray angle	Controls fan width and local impact	Retain angle, distance and surface condition	Color conventions require confirmation from the named product.
Maximum pressure and temperature	Defines the documented envelope	Retain working/maximum terminology	Never qualify by connector alone.
Connection	Defines wand retention and sealing	Record plug size, thread, gender and locking system	A nominal 1/4-inch label omits system condition and wear.

Pressure Washer Nozzle performance reporting boundary diagram — WCB explanatory visual
WCB reporting map: compare ratings only inside the same documented part, condition, unit and machine scope.
**How to use this visual**Keep every reported value inside its stated unit, operating point, test method and product scope.
**Diagram sources**simpson-80146, simpson-catalog, karcher-5pc, karcher-turbo, karcher-power, karcher-dirt

Orifice size evidence

EvidenceThe cited official source supports this statement within its named product or document scope.

ScopeNamed official product, model, market and document edition only; verify the current revision before procurement.

Verified2026-08-12

Sourcessimpson-80146, simpson-catalog, karcher-5pc, karcher-turbo, karcher-power

Spray angle evidence

EvidenceThe cited official source supports this statement within its named product or document scope.

ScopeNamed official product, model, market and document edition only; verify the current revision before procurement.

Verified2026-08-12

Sourcessimpson-80146, simpson-catalog, karcher-5pc, karcher-turbo, karcher-power

Maximum pressure and temperature evidence

EvidenceThe cited official source supports this statement within its named product or document scope.

ScopeNamed official product, model, market and document edition only; verify the current revision before procurement.

Verified2026-08-12

Sourcessimpson-80146, simpson-catalog, karcher-5pc, karcher-turbo, karcher-power

Connection evidence

EvidenceThe cited official source supports this statement within its named product or document scope.

ScopeNamed official product, model, market and document edition only; verify the current revision before procurement.

Verified2026-08-12

Sourcessimpson-80146, simpson-catalog, karcher-5pc, karcher-turbo, karcher-power

Evidence + WCB interpretation

Application matrix

Official application language narrows the review; it does not prove exact product fit.

Kärcher quick-connect turbo pressure washer nozzle — Official technical image
Official Kärcher turbo-nozzle image on a WCB canvas; use only within the named pressure, connector and surface limits.
**How to use this visual**Treat the photographed application as source context only. Verify the actual operating point, duty, envelope and approvals.
Official image source

Heavy hard-surface cleaning

EvidenceThe cited official source supports this statement within its named product or document scope.

ScopeNamed official product, model, market and document edition only; verify the current revision before procurement.

Verified2026-08-12

Sourcessimpson-80146, simpson-catalog, karcher-5pc, karcher-turbo, karcher-power

WCB assessment

Use a documented 0°/15° or rotary nozzle only after surface-risk review.

Basis: Official architecture and application statements from the cited sources.
Limitations: No exact machine or surface suitability is established outside the cited scope.
Buyer action: Approve the exact part, installed system and operating procedure.

General washing

EvidenceThe cited official source supports this statement within its named product or document scope.

ScopeNamed official product, model, market and document edition only; verify the current revision before procurement.

Verified2026-08-12

Sourcessimpson-80146, simpson-catalog, karcher-5pc, karcher-turbo, karcher-power

WCB assessment

A matched 25° or 40° fan tip can distribute impact across a wider area.

Basis: Official architecture and application statements from the cited sources.
Limitations: No exact machine or surface suitability is established outside the cited scope.
Buyer action: Approve the exact part, installed system and operating procedure.

Detergent application

EvidenceThe cited official source supports this statement within its named product or document scope.

ScopeNamed official product, model, market and document edition only; verify the current revision before procurement.

Verified2026-08-12

Sourcessimpson-80146, simpson-catalog, karcher-5pc, karcher-turbo, karcher-power

WCB assessment

Use the manufacturer-defined low-pressure soap nozzle and chemistry procedure.

Basis: Official architecture and application statements from the cited sources.
Limitations: No exact machine or surface suitability is established outside the cited scope.
Buyer action: Approve the exact part, installed system and operating procedure.

Compatibility gate

Family similarity is not replacement compatibility

Physical resemblance, group ownership, generic family names, seller claims, and matching wattage do not establish compatibility.

Pressure Washer Nozzle compatibility approval gate — WCB explanatory visual
WCB compatibility gate: stop approval when identity, interface, rating or source scope remains undocumented.
**How to use this visual**Pass every relevant gate using current manufacturer documents before approving a substitute, service part or design change.
**Diagram sources**simpson-80146, simpson-catalog, karcher-5pc, karcher-turbo, karcher-power, karcher-dirt

Pump operating point

Required match: Actual flow and pressure at the approved condition
Why it matters: Wrong orifice can overpressure or unload continuously.
Required action: Record manufacturer evidence for every required field before approval.

EvidenceThe cited official source supports this statement within its named product or document scope.

ScopeNamed official product, model, market and document edition only; verify the current revision before procurement.

Verified2026-08-12

Sourcessimpson-80146, simpson-catalog, karcher-5pc, karcher-turbo, karcher-power

Nozzle identity

Required match: Orifice number, angle, product code and revision
Why it matters: Color alone is not a procurement specification.
Required action: Record manufacturer evidence for every required field before approval.

EvidenceThe cited official source supports this statement within its named product or document scope.

ScopeNamed official product, model, market and document edition only; verify the current revision before procurement.

Verified2026-08-12

Sourcessimpson-80146, simpson-catalog, karcher-5pc, karcher-turbo, karcher-power

Connection and retention

Required match: Exact plug/thread, socket condition and locking engagement
Why it matters: A worn coupling can eject the nozzle.
Required action: Record manufacturer evidence for every required field before approval.

EvidenceThe cited official source supports this statement within its named product or document scope.

ScopeNamed official product, model, market and document edition only; verify the current revision before procurement.

Verified2026-08-12

Sourcessimpson-80146, simpson-catalog, karcher-5pc, karcher-turbo, karcher-power

Surface and distance

Required match: Substrate, coating, angle, stand-off and test area
Why it matters: High local impact can etch or strip surfaces.
Required action: Record manufacturer evidence for every required field before approval.

EvidenceThe cited official source supports this statement within its named product or document scope.

ScopeNamed official product, model, market and document edition only; verify the current revision before procurement.

Verified2026-08-12

Sourcessimpson-80146, simpson-catalog, karcher-5pc, karcher-turbo, karcher-power

Service boundary

Failure signals and required checks

Symptoms narrow inspection work; they are not a remote diagnosis or repair instruction.

Pressure too high or machine cycles

WCB inspection categories

Orifice too small
Blocked nozzle or unloader fault

Safety boundaryStop and depressurize before inspection.

Service actionUse the current manufacturer inspection, maintenance and replacement procedure.

EvidenceThe cited official source supports this statement within its named product or document scope.

ScopeNamed official product, model, market and document edition only; verify the current revision before procurement.

Verified2026-08-12

Sourcessimpson-80146, simpson-catalog, karcher-5pc, karcher-turbo, karcher-power

Weak or uneven spray

WCB inspection categories

Worn or oversized orifice
Debris or damaged selector

Safety boundaryDo not probe a pressurized nozzle.

Service actionUse the current manufacturer inspection, maintenance and replacement procedure.

EvidenceThe cited official source supports this statement within its named product or document scope.

ScopeNamed official product, model, market and document edition only; verify the current revision before procurement.

Verified2026-08-12

Sourcessimpson-80146, simpson-catalog, karcher-5pc, karcher-turbo, karcher-power

Surface damage

WCB inspection categories

Angle too narrow
Distance too short or rotary tip misapplied

Safety boundaryTest the approved setup on an inconspicuous area.

Service actionUse the current manufacturer inspection, maintenance and replacement procedure.

EvidenceThe cited official source supports this statement within its named product or document scope.

ScopeNamed official product, model, market and document edition only; verify the current revision before procurement.

Verified2026-08-12

Sourcessimpson-80146, simpson-catalog, karcher-5pc, karcher-turbo, karcher-power

Representative, not exhaustive

Official representative product families

These rows document manufacturer-published families. They do not establish a customer, OEM, factory or compatibility relationship.

Representative official component families
Manufacturer	Family	Architecture	Declared application	Distinguishing specifications	Scope
Simpson	80146 five-nozzle kit	Fixed-angle 0/15/25/40/soap set	4.0 orifice, 1/4-inch QC, named rating	Official family identityNamed architecture or operating envelope	Simpson US
Simpson	80177 second-story nozzles	Wash and soap long-range pair	Named 10.0/40.0 sizes and catalog scope	Official family identityNamed architecture or operating envelope	Simpson 2026 catalog
Kärcher	8.641-031.0 five-piece kit	Fixed-angle quick-connect set	035 orifice and named residential gas machines	Official family identityNamed architecture or operating envelope	Kärcher US
Kärcher	8.641-034.0 turbo nozzle	Rotating point-jet nozzle	Up to named 4000 PSI scope	Official family identityNamed architecture or operating envelope	Kärcher US
Kärcher	4.111-020.0 Dirt Blaster 040	Professional ceramic rotary nozzle	Named pressure, temperature and machine scope	Official family identityNamed architecture or operating envelope	Kärcher US
MTM Hydro	17.0171 Hydrojet 4.0 five-pack	Fixed-angle and soap quick-connect set	Named 4.0 set	Official family identityNamed architecture or operating envelope	MTM Hydro US
MTM Hydro	16.7021 Acqualine 4.0 40 degree	Guarded stainless-plug nozzle	Named detailing-nozzle configuration	Official family identityNamed architecture or operating envelope	MTM Hydro US

WCB decision support

Procurement decision matrix

WCB assessment

OEM or approved service replacement

Verify: Exact part identity, revision and installed system
Comparison trap: Treating a family label as an exact fit
Assessment: Requires application-specific verification.
Basis: Official part and model scope.
Limitations: No fit is established outside the named source scope.
Buyer action: Require current manufacturer cross-reference or approved-parts evidence.

EvidenceThe cited official source supports this statement within its named product or document scope.

ScopeNamed official product, model, market and document edition only; verify the current revision before procurement.

Verified2026-08-12

Sourcessimpson-80146, simpson-catalog, karcher-5pc, karcher-turbo, karcher-power

WCB assessment

Alternative sourcing qualification

Verify: Geometry, materials, interfaces, ratings and validation plan
Comparison trap: Approving by photo, nominal size or one matching rating
Assessment: Requires application-specific verification.
Basis: Multiple official families show different architecture and limits.
Limitations: Public sources do not qualify an unlisted substitute.
Buyer action: Run documented engineering, safety and service validation before approval.

EvidenceThe cited official source supports this statement within its named product or document scope.

ScopeNamed official product, model, market and document edition only; verify the current revision before procurement.

Verified2026-08-12

Sourcessimpson-80146, simpson-catalog, karcher-5pc, karcher-turbo, karcher-power

WCB assessment

Application selection

Verify: Machine, surface, duty and operating condition
Comparison trap: Comparing headline performance outside its test boundary
Assessment: Requires application-specific verification.
Basis: Official application and technical documents.
Limitations: Field results vary with the complete system and procedure.
Buyer action: Approve the complete operating specification and acceptance test.

EvidenceThe cited official source supports this statement within its named product or document scope.

ScopeNamed official product, model, market and document edition only; verify the current revision before procurement.

Verified2026-08-12

Sourcessimpson-80146, simpson-catalog, karcher-5pc, karcher-turbo, karcher-power

Engineering validation

Checks before approval or substitution

Pump operating point

Wrong orifice can overpressure or unload continuously.

Required actionFreeze the approved value, tolerance, evidence URL and revision in the procurement specification.

EvidenceThe cited official source supports this statement within its named product or document scope.

ScopeNamed official product, model, market and document edition only; verify the current revision before procurement.

Verified2026-08-12

Sourcessimpson-80146, simpson-catalog, karcher-5pc, karcher-turbo, karcher-power

Nozzle identity

Color alone is not a procurement specification.

Required actionFreeze the approved value, tolerance, evidence URL and revision in the procurement specification.

EvidenceThe cited official source supports this statement within its named product or document scope.

ScopeNamed official product, model, market and document edition only; verify the current revision before procurement.

Verified2026-08-12

Sourcessimpson-80146, simpson-catalog, karcher-5pc, karcher-turbo, karcher-power

Connection and retention

A worn coupling can eject the nozzle.

Required actionFreeze the approved value, tolerance, evidence URL and revision in the procurement specification.

EvidenceThe cited official source supports this statement within its named product or document scope.

ScopeNamed official product, model, market and document edition only; verify the current revision before procurement.

Verified2026-08-12

Sourcessimpson-80146, simpson-catalog, karcher-5pc, karcher-turbo, karcher-power

Surface and distance

High local impact can etch or strip surfaces.

Required actionFreeze the approved value, tolerance, evidence URL and revision in the procurement specification.

EvidenceThe cited official source supports this statement within its named product or document scope.

ScopeNamed official product, model, market and document edition only; verify the current revision before procurement.

Verified2026-08-12

Sourcessimpson-80146, simpson-catalog, karcher-5pc, karcher-turbo, karcher-power

Standards boundary

Safety and performance references

IEC 60335-2-79

JurisdictionInternational

Version2021

ApplicabilitySafety context for high-pressure cleaners within the standard scope; not a nozzle compatibility or certification claim.

EvidenceThe cited official source supports this statement within its named product or document scope.

ScopeNamed official product, model, market and document edition only; verify the current revision before procurement.

Verified2026-08-12

Sourcesiec-60335-2-79

Technical developments

Documented changes affecting design or procurement

2026-08-11
Current official ranges separate fixed, selector and rotary nozzle architectures
Reviewed Simpson, Kärcher and MTM Hydro sources publish materially different pattern, orifice and operating envelopes.
EvidenceThe cited official source supports this statement within its named product or document scope.
ScopeNamed official product, model, market and document edition only; verify the current revision before procurement.
Verified2026-08-12
Sourcessimpson-80146, karcher-turbo, mtm-nozzles

Audit trail

Primary and technical sources

Last material modification 2026-08-12 · Last verified 2026-08-12

manufacturer
Replacement Spray Nozzles 80146
Simpson
Accessed 2026-08-12
Open source
datasheet
Simpson 2026 industrial equipment catalog
Simpson
Accessed 2026-08-12
Open source
manufacturer
5 Piece Quick Connect Nozzle Kit 8.641-031.0
Kärcher
Accessed 2026-08-12
Open source
manufacturer
Turbo Nozzle Quick Connect 8.641-034.0
Kärcher
Accessed 2026-08-12
Open source
manufacturer
Power nozzle 40 degree 4.0
Kärcher
Accessed 2026-08-12
Open source
manufacturer
Dirt Blaster 4.111-020.0
Kärcher
Accessed 2026-08-12
Open source
manufacturer
MTM Hydro quick-connect nozzles
MTM Hydro
Accessed 2026-08-12
Open source
manufacturer
MTM Hydro detailing nozzles
MTM Hydro
Accessed 2026-08-12
Open source
standard
IEC 60335-2-79:2021 high-pressure cleaner safety
IEC
Accessed 2026-08-12
Open source

Pressure Washer Nozzle

Flow metering

Jet formation

Surface energy distribution

Accessory connection

Fixed-angle spray tip

Multi-pattern selector

Rotary turbo nozzle

Heavy hard-surface cleaning

General washing

Detergent application

Pump operating point

Nozzle identity

Connection and retention

Surface and distance

Pressure too high or machine cycles

Weak or uneven spray

Surface damage

OEM or approved service replacement

Alternative sourcing qualification

Application selection

Pump operating point

Nozzle identity

Connection and retention

Surface and distance

IEC 60335-2-79

Current official ranges separate fixed, selector and rotary nozzle architectures

Replacement Spray Nozzles 80146

Simpson 2026 industrial equipment catalog

5 Piece Quick Connect Nozzle Kit 8.641-031.0

Turbo Nozzle Quick Connect 8.641-034.0

Power nozzle 40 degree 4.0

Dirt Blaster 4.111-020.0

MTM Hydro quick-connect nozzles

MTM Hydro detailing nozzles

IEC 60335-2-79:2021 high-pressure cleaner safety