What is Slip On Flange?
Slip on flange is available at a lower price and has a low hub, so the pipe can slip into the flange easily before performing welding. It can be simple to align welded, whether the internal or external welds, which can effectively prevent leakage and structural stability.
The slip on flange has ample strength, so it can work like a welded neck flange even under fatigue conditions. In addition, It is easy to install without damaging the flange face. It is also used in conjunction with weld neck flanges and reducers, especially useful when liquid or gas flows from a smaller diameter to a larger one.
Slip-on flanges are available in diverse sizes, designs, and substances. The common materials of slip on flange include carbon steel, stainless steel and alloy steel with distinct features. The dimensions of slip on flange depends on the size and pressure rating of the pipe. Generally, the slip-on flange is available in sizes ranging from 1/2 "to 60", most common sizes are 1/2″ to 24″, and pressure ratings ranging from class 150 to class 2500. Furthermore, whether it is the size of the flange, wall thickness, or design can be as per the client’s prerequisites and specifications.
Applications
Technical Specifications
Slip on flange has many sizes no matter for carbon steel or stainless steel. The following information is just about their sizes and tolerances.
Slip On Flange type According to sealing face
Slip On Flange Type According to standards
ANSI / ASME B16.5 slip on flange
ANSI / ASME B16.5 Stands for American industrial standard, it is the most popular standard in the world for producing flanges. There are two types in ASME, B16.5 and B16.47. ASME B16.5 slip on flange dimensions from NPS ½” to 24”. AND for size NPS 26” to 60”, it should be as per ASME B16.47.
DIN standard slip on flange
“DIN” stands for German industrial standard, it measures a flange in millimeters. Nowadays, the DIN standard has almost been replaced by EN1092, but it has been a very important standard for a very long time. There are many standard codes in DIN as per different pressures.
Slip On Flange Type According to material
Quality Assurance
aw material re-inspection: Raw materials undergo chemical composition analysis, mechanical property testing and non-destructive testing.
2) Cutting and blanking: Cut the raw materials into forged blocks of different sizes according to the specifications of the flat welding flange.
3) Forging and forming: The raw material forging block is heated and then forged and formed.
4) Heat treatment: The forged flange blank is heat treated to eliminate stress.
5) Machining: The flange blank is processed into a standard size flange through CNC machine tool equipment.
6) Finished product inspection: Inspect the size and appearance of the finished flange; inspect the inside and outside of the flange through non-destructive testing equipment.
7) Surface treatment: Clean and anti-rust the flange surface.
8) Paint marking: Carry out steel stamping or electric corrosion marking on the flange, including: type, pressure, specification, material, standard, etc.
9) Data confirmation: Compile flange-related raw material inspection and flange inspection and other relevant data into a volume, and prepare a complete flange quality certification document report.
10) Packaging and shipping: Different packaging is carried out according to different types and quantities of flanges. And delivered to the designated location by freight.