An angle-based knee is produced in three main categories:elbow pipe fitting a 45-degree knee, a 90-degree knee, and a 180-degree knee. The customer can be built. In terms of appearance, a knee head has a ribbed brain, and sometimes in special designs, a knee-length knee is made to order by the customer.
Elbow pipe fitting different sizes
Carbon steel (steel) and stainless steel knees are divided into three categories in terms of construction angle:
45-degree elbow (ELBOW 45 DEG): In cases where we need to change direction in one direction.
90-degree elbow (ELBOW 90 DEG): In cases where a change of direction is required along with a change in radius.
180-degree knee (ELBOW 180 DEG): This U-shaped knee is also used in cases where the path must be aligned with the parallel return path. This type of knee is used in thermal coils, heat exchangers, tank outlets, etc.
Knee types based on the radius of curvature
Before inquiring about the price of a welded knee, it is better to get acquainted with its firsttypes of pipe fittings. Knee Production According to the angle and radius of rotation, it is produced and supplied in two types: “long radius” and “short radius”:
Long redius elbow knee, LR knee with a radius of 1.5 times the nominal diameter of the tube and for sizes 3/4 and above. The pressure drop in the long radius type is less than in the short radius knee. A long radius knee occupies more space. “ASME B16.9” expresses the standards and sizes of knee high radius.
Short-radius elbow, short-radius (or SR) elbows with a radius equal to the pipe diameter are used. In the short-range type, there is a large pressure drop due to the sudden change in fluid flow and its small cross-sectional area. A short radius knee occupies less space. “ASME B16.28” expresses the standards and sizes of knee short radius
Distributing elbow pipe fitting on the markets
Usually the type of connections and its type are chosen according to the type of pipe. In this regard, you can consult with project engineers and experts.
To buy different types of welded knees, it is recommended to inquire elbow pipe pvc about prices from reputable and important commercial centers. In this case, you can take advantage of the free advice of the Iron Center experts as a company active in the field of hardware.
In the next step of buying a welded knee, be sure to get a pre-invoice from the company in question. There are several benefits to getting a pre-invoice; By receiving a pre-invoice, you can compare the prices of different centers and have a better decision to buy.
Also, since the pre-invoice for small amounts and costs is listed, the possibility of any errors and differences will be minimized.
After purchasing and shipping, be sure to check the number and type of knee you are requesting with the order sent to you.