Pipe joint / hose joint / metal joint structure type and installation steps

Instrument connector—Instrument connector includes meter connector, instrument pipe connector, instrument valve connector, instrument source connection connector, instrument electrical connector, metal hose connector, etc. It has many varieties and different specifications, and each instrument connector has its own function.
 
1. Structure of pipe joint:

The standard pipe joint consists of a nut, a snap ring (some have only one snap ring), a joint, and a pipe.

The principle of sealing of pipe joints: the clamping ring is pressed to deform the pipe by the tightening of the nut to form a seal.

 
2.Quick connector installation and removal steps

installation steps

1.Wrap an appropriate amount of raw material tape at the threaded quick joint;

2.Tighten the quick connector with appropriate force;

3.Verify the top of the pipe to be inserted vertically with a cutter;

4. Insert the top end of the cut pipe into the quick connector and insert it to the end;

5. Verify that the tube is firmly connected, and pull the tube with an appropriate force. The tube cannot be pulled out.
 
Unloading steps

1. First check whether the medium passing through the joint pipe is cut off;

2. While holding the collet towards the quick connector with your index finger and thumb in one hand, pull out the tube with the other hand.

3. Installation of new pipe joints
 
Step 1: Insert the tube into the joint and make sure it is as low as the nut

 
Step 2: Tighten the nut by hand, and mark the position
 
Step 3: Use a wrench to turn the nut clockwise 1 and 1/4 turns

4. Notes on the installation of new pipe joints:

For pipe diameters of 1 inch (25mm) and below, tighten by hand and then use a wrench to rotate 1 ¼ turn. For 1/16, 1/8, and 3/16 inch (2, 3, 4mm) pipe diameters, just turn 3/4 turns with a wrench. For 1 ¼, 1 ½, 2 inch and 28, 30, 32, 38mm pipe diameters, professional tools are required, as they are rarely used in the field.

5. Reinstallation of pipe joints

For pipe joints that have been tightened, please mark the position between the nut and the joint before removing it. When reinstalling, first tighten the nut by hand and then use a wrench to tighten the nut to the original Location. For pipe joints that are repeatedly disassembled and assembled, you can rotate the nut to the original position and then rotate it by 10 ° -20 ° (not more than 1/3 of the side of the hexagonal nut, that is, not more than B).

The manufacturer provides special tools that can be used to check whether the pipe joint is tight. Different pipe diameters have different standards.

This tool can tell whether the pipe joint is tight. Please note: it is only suitable for metal pipe joints of 1 inch (25mm) and below

Precautions when selecting a pipe: Pay attention to the wall thickness of the pipe within the specified range (see the table below), because the pipe wall is too thick, the retaining ring does not work, and the pipe wall is too thin, which will cause the pipe to deform and crack.