Common types and specifications of fittings for high-pressure water discharge pipes.
There are numerous types of fittings for high-pressure cleaning machines, which are primarily distinguished by their thread type, size, and connection method to accommodate different models of equipment and piping. Here are some common specification details:
Common type specifications for connectors.
Thread specifications: Connectors often use either imperial threads (e.g., the G series) or metric threads (e.g., the M series). For example:
Outer thread G3/8 (metric thread, commonly used in water gun connectors).
Outer threads M14, M18, M22 (metric threads, used for connecting high-pressure pipes).
Internal threads: G1/4, G1/2, G3/8, etc.
Variable-diameter types: Connectors can accommodate pipes of different diameters, such as:
G3/8 adapter for M14, M18, and M22 (common internal diameters are 14 mm or 15 mm).
M22 to external thread 3/8 quick-connect plug (for rapid connections).
Special design: Some connectors feature internal cores or groove-type structures. For example, the H-type internal core connector with M22*1.5 threads is suitable for high-pressure environments.
How to choose the connector specifications?
.Device Interface Compatibility: First, verify the type and dimensions of the threading on the connection ports of the high-pressure cleaner, water lance, or water hose (e.g., G3/8 or M22).
Consider the pipe diameter compatibility: Common diameters for high-pressure pipes include 6 mm, 8 mm, 20 mm, 25 mm, and 32 mm, among others. For example:
Flow rate less than 10 L/min – available with a 6 mm inner diameter tube.
Common car washers use pipes with diameters of 25 mm or 32 mm.
. Pay attention to the pressure rating: In high-pressure environments, choose materials that can withstand pressure (such as stainless steel or brass) to prevent leaks.
Note
The connector specifications must perfectly match the piping system, as failure to do so could compromise the seal or result in damage.
If you are unsure about the specific model, it is recommended to measure the thread dimensions of the existing interface (e.g., using a caliper to measure pitch and diameter) or consult the equipment’s user manual.
If you have more specific details about the device model or interface, please provide additional descriptions so that the recommendations can be further refined.