1. Oil pipes are divided into: seamless steel pipe, seamed steel pipe, oil resistant rubber pipe, copper pipe, nylon pipe and plastic pipe.
2. Pipe joints are generally divided into: flared pipe joints, welded pipe joints, ferrule type pipe joints, buckled pipe joints, detachable pipe joints, telescopic pipe joints and quick pipe joints.
Straight-through fittings, straight-through fittings, tee fittings, elbows, unions with live nuts, articulated joints, plugs, transition joints, etc.
The composition of the double ferrule joint: the front snap ring, the rear snap ring, the nut material are commonly used in stainless steel and carbon steel metric, American and British thread standard NPT, PT, G are pipe threads.
1. Flared type 1, flared end straight pipe joint (GB/T 5625-2008); 2. Flared taper thread straight pipe joint (GB/T 5626-2008);
3. Flared taper thread long pipe joint (GB/T 5627-2008); 4. Flared straight pipe joint (GB/T 5628-2008)
5. Flared taper threaded pipe joint (GB/T 5629-2008); 6. Flared bend pipe joint (GB/T 5630-2008);
Second, the card type GB3737.1-83 card sleeve type straight through pipe joint; GB3737.2-83 card sleeve type straight through joint body;
GB3733.1-83 card sleeve type straight through pipe joint; GB3733.2-83 card sleeve type straight through pipe joint;
GB3735.1-83 card sleeve type straight through long pipe joint; GB3735.2-83 card sleeve type straight through long pipe joint;
GB3734.1-83 card sleeve type taper thread straight through pipe joint; GB3734.2-83 card sleeve type taper thread straight through joint body;
GB3736.1-83 ferrule type taper thread long pipe joint; GB3736.2-83 ferrule type taper thread long pipe joint;
GB3756.1-83 card sleeve type butt straight pipe joint; GB3756.2-83 card sleeve type butt straight joint body;
GB3754.1-83 card sleeve type end butt straight pipe joint; GB3754.2-83 card sleeve type end butt straight joint body;
GB3755.1-83 card sleeve taper thread butt straight pipe joint GB3755.2-83 card sleeve taper thread butt straight through joint body;
JB/ZQ4401-97 card sleeve type conical pipe thread straight pipe joint; JB/ZQ4402-97 card sleeve type conical pipe thread long pipe joint;
JB/ZQ4406-97 card sleeve type conical pipe thread butt straight pipe joint;
The purpose of the hydraulic oil pipe is mainly to transport hydraulic oil. The pipe joint is mainly for connection, installation and maintenance. Most of the hydraulic hoses are classified according to pressure, diameter, number of steel layers and joint types. The inlet and return pipes are mostly low-pressure oil pipes, generally 1 layer below 16Mpa! The oil pipe is a high pressure oil pipe, which is selected according to the system pressure.
The function of the hydraulic oil pipe is to connect the hydraulic original and deliver the hydraulic oil. In the hydraulic system, the commonly used hydraulic oil pipe has steel pipe, copper pipe, plastic pipe, nylon pipe and rubber hose, which can be selected according to the specific use.
The pipe joint is used for the connection between the oil pipe and the oil pipe, the oil pipe and the hydraulic component. The pipe joint can be divided into a straight through, a right angle, a triangle, etc. according to the same number of ways; the joint connection mode can be divided into a welding type, a card sleeve type, a pipe end Flared and crimped type; according to the material of the connecting tubing can be divided into steel pipe head, metal hose pipe joints and rubber pipe joints. China's future pipe joint standards, when used, can be selected according to the specific circumstances.
Hydraulic oil is the working medium of the hydraulic system, and also the lubricant and coolant of the hydraulic original. Therefore, when selecting the hydraulic oil, attention should be paid to the performance of the viscosity of the hydraulic oil with temperature, abrasion resistance, oxidation stability and so on.
The properties of hydraulic oil are different, and the price is also very different. According to the instructions, the selection of suitable metal hoses and other products in the environment is applicable and will not be wasted.
Specifically used in, for example, lifting machinery. Extrusion forging machine. Hydraulic balers and more. Everything has a hydraulic cylinder. Hydraulic motors, hydraulic presses are not equipped with hydraulic tubing.