ryobi 3000 psi pressure washer parts diagram

The quick connect couplers and gun swivels. There are two types of fittings that are must owns (in our opinion). What Fittings, Couplers and Adapters are Best to Own? That means if you try to connect your hose from your gas machine to your electric the hose female fitting will have the 14mm o-ring and the electric spray wand will have 15mm internal diameter. The electric pressure washer coupler will have internal diameter of 15mm instead of 14mm. The female side has the o-ring to prevent leaking. The outer diameter is 22mm, the inner diameter is 14mm and the inner plug on the female M22 side is 14mm. M22 threads are common on pumps, hoses and spray guns The main fitting sizes seen are pictured below with digital calipers to show their dimensions. The Different Sizes You’ll See: M22 Threads, 3/8″ Threads and Quick Connects M22 screw connections on gas pressure washers will have 14mm internal diameter but the same M22 on an electric will have 15mm ID. When measuring you’ll need to be mindful of both the internal and external diameters of the fitting. They are close but not exact and you won’t be able to turn a 3/8″ male NPT screw connection onto a 3/8″ female BSP connection more than a 3 or 4 turns before it locks up. That same 3/8″ pipe according to BSP has a thread pitch of 0.0526 inches (1.337mm) and outer diameter of 0.6560 inches (16.662mm). They don’t mesh together.įor example: a 3/8″ pipe size according to NPT has a thread pitch of 0.05555 inches (1.411mm) and an outer diameter of 0.675 inches (17.145mm). British technical standard for screw threads.īecause sometimes a pressure washer coupler will be NPT and sometimes it will be BSP. The female fittings receives and holds the male connector in place. The male side has a pin or plug that is inserted in the female socket or hole. Here are some other things to know about when talking power washer adapters: Male (M) vs. A measuring tape will work but it won’t be as good because we are talking about 1mm differences. To proper measure the fitting you need will require calipers. Let’s take a deeper look what all the size mean on fittings. Some fittings are 3/8″, some are 22mm, some are 14mm on the inside diameter (some need to be 15mm), sometimes you’ll find fittings going off British pipe thread standards and some are labelled QC F or QC M to confuse. Do you include the thread in that measurement?Įven with digital calipers it can difficult.Is it the inside or outside diameter you measure?.The main confusion when buying fittings is the size you need to get. The quick connect male fits into the female socket and the o-ring is the perfect size to prevent leaks. O-rings are used in the female fittings to prevent leaks. Stainless steel has added chromium to prevent rust. It is an alloy of copper and zinc and with its low melting point is easy to cast and machine. Plastic fittings will only be used for lighter-duty electric pressure washers.īrass is by far the most common fitting material for pressure washers. Let’s look at the pros and cons of each: Plastic Quick connect fittings turn screw connections to quick connect/release making the job of connecting and removing the hose fast and easy. However, we will talk about quick connect fittings and swivel fittings separate. But it’s confusing and we won’t do that here. Sometimes a website will refer to the entire category of connectors as fittings and then specific types of fittings as couplers or adapters or reducers. Types Fittings, Couplers, Adaptersįittings, couplings and adapters can be considered the same thing. There’s hundreds of different fittings to choose from, but only a couple of types you need to know about. Want to better avoid hose kinks by using swivel fittings.įittings are inexpensive ($5 to $15), long lasting and are to make your life easier.Want to turn screw fittings to quick connect.Want to use a different high pressure hose (or extend the length of the one you have).Want to add attachments ( surface cleaner, foam cannon, pressure gauge).You will only start to need fittings when you: Your pressure washer will come with the fittings, couplers and adapters needed to make it work out-of-the-box (99% of the time). It fits between the high pressure hose and trigger gun or between the pump and pressure hose to make them connect properly. A pressure washer fittings connects pressure washer parts.

Ryobi 3000 psi pressure washer parts diagram