flange_basics - Pipe Flanges Manufacturers in China

Welding Neck Flanges

weld neck pipe flanges large The welding neck flange is connected by welding the pipe to the flange neck, so that the inner diameter of the pipe matches the inner diameter design of the flange, so that the stress is transferred from the flange to the pipe, and the stress concentration at the bottom of the hub is reduced. , This is also a factor that butt-welded flanges are commonly used in high-pressure pipeline applications. The sealing surface of welding neck flange usually has RF surface, FF surface, RTJ surface and matched sealing surface (M surface, FM surface) (T surface, G surface). When welding neck flange uses RF When facing, the standard height of butt-welded pipe flanges below 400# is 1/16″. The standard height of butt-welded pipe flanges below 400# is 1/4″. Looking for sealing surface size? click here -> Alternate Flange Facings Yanhao Flange produces pipe flanges of all steel material grades, including carbon steel butt welded pipe flanges, stainless steel b...

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slip-on pipe flange

slip-on pipe flanges slip-on pipe flange is a popular type of pipe flange. Its design inner diameter is slightly about the outer diameter of the pipe so it can slide on the pipe. Its connection method is to insert the pipe into the inner diameter of the flange for fillet welding. On pipelines, this type of flange is extremely common in low-pressure pipelines. Because it is designed with a hub, which enhances the strength of the flange and improves the load-bearing strength of the flange, it can also be used on higher pressure pipelines. slip-on flanges usually have a raised face or flat face. When using raised face, the standard height of butt-welded pipe flanges below 400# is 1/16″. The standard height of butt-welded pipe flanges 400# and above is 1/4″. Looking for sealing surface size? click here -> Alternate Flange Facings Yanhao Flange produces pipe flanges of all steel material grades, including carbon steel slip-on pipe flange with neck, stainless steel slip-on pip...

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blind pipe flanges

blind pipe flanges Blind flange is a solid steel part without holes (inner diameter), which is mainly used to block pipelines. They are commonly used to test the flow of gas or liquid through pipes or vessels and applications in high-pressure pipes. The three most common end-face connection forms of blind flanges are usually matched with related mating flanges. These include raised face, flat face or RTJ face seals. Raised face and flat face are usually used in medium and low pressure pipeline applications. RTJ is the first choice for high pressure pipeline applications. The standard height of blind flanges below 400# is 1/16″. The standard height of blind flanges below 400# is 1/4″. Looking for sealing surface size? click here -> Alternate Flange Facings Yanhao Flange produces pipe flanges of all steel material grades, including carbon steel butt welded pipe flanges, stainless steel butt welded pipe flanges and alloy steel butt welded pipe flanges. At the same time, we ...

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lap joint flange

lap joint pipe flanges Lap joint flanges are generally used together with short pipe joints. The flange can slide directly on the pipe, and the pipe and the short pipe end can be welded. The lap joint flange can rotate freely around the short pipe end to achieve precise bolt connection. An excellent choice for situations that require frequent disassembly and reinstallation and checking connections. Yanhao Flange produces pipe flanges of all steel material grades, including carbon steel lap joint flanges, stainless steel lap joint flanges and alloy lap joint flanges. At the same time, we provide you with ASME/ANSI B16.5 loose flange dimensions and a separate page in PDF format. Looking for sealing surface size? click here -> Alternate Flange Facings Yanhao Flange produces pipe flanges of all steel material grades, including carbon steel socket welding flanges, stainless steel socket welding flanges and alloy steel socket welding flanges. At the same time, we provide you with ASME/ANS...

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socket welding flange

socket weld pipe flanges Socket welding flanges have a small step larger than the inner diameter of necked flat welding flanges from the outside. They are also called socket ends. The pipe is inserted into the socket section and connected with fillet welds around the top, so that the inner diameter of the pipe The inner diameter is the same as that of the socket end, so that the fluid or gas in the pipe can flow better. It is usually used for small-sized high-pressure pipes. The three most common end-face connection forms of socket welding flanges are usually matched with related mating flanges. Including raised face, flat face or RTJ face seal. Raised face and flat face are usually used in medium and low pressure pipeline applications. RTJ is the first choice for high pressure pipeline applications. The standard height of socket welding flanges below 400# is 1/16″. The standard height of socket welding flanges below 400# is 1/4″. Looking for sealing surface size? click her...

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threaded flange

threaded pipe flanges Threaded flanges are also called NPT flanges/matching flanges. The inner diameter of the threaded flange contains a NPT internal thread, which is used to connect to the NPT external threaded pipe. The biggest advantage is that it can be connected without welding and is convenient for installation. In addition to the standard NPT form specified by the ASME B16.5 code, other thread forms can also be customized according to customer requirements. The three most common end-face connection forms of threaded flanges are usually matched with related mating flanges. Including raised face, flat face or RTJ face seal. Raised face and flat face are usually used in medium and low pressure pipeline applications. RTJ is the first choice for high pressure pipeline applications. The standard height of threaded flanges below 400# is 1/16″. The standard height of threaded flanges below 400# is 1/4″. Looking for sealing surface size? click here -> Alternate Flange Fac...

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alternate flange facings

Large Male and Female lap joint small tongue and groove small male and female small male and female on end of pipe raised face large tongue and groove Nominal Size (in.) RF, LJ, Large Male and Large Tongue Small Male (3) Small Tongue ID of Large and Small Tongue Large Female and Large Groove Small Female (3) Small Groove ID of Large and Small Groove Raised Face 150 and 300 Pound Standards (2) RF, Large and Small Male and Tongue 400, 600, 900, 1500, & 2500 lb. Standards (2) Depth of Groove or Female R S T U W X Y Z 1/2 1.38 0.72 1.38 1 1.44 0.78 1.44 0.94 0.06 0.25 0.19 3/4 1.69 0.94 1.69 1.31 1.75 1 1.75 1.25 0.06 0.25 0.19 1 2 1.19 1.88 1.5 2.06 1.25 1.94 1.44 0.06 0.25 0.19 1 1/4 2.5 1.5 2.25 1.88 2.56 1.56 2.31 1.81 0.06 0.25 0.19 1 1/2 2.88 1.75 2.5 2.12 2.94 1.81 2.56 2.06 0.06 0.25 0.19 2 3.62 2.25 3.25 2.88 3.69 2.31 3.31 2.81 0.06 0.25 0.19 2 1/2 4.12 2.69 3.75 3.38 4.19 2.75 3.81 3.31 0.06 0.25 0.19 3 5 3.31 4.62 4.25 5.06 3.38 4.69 4.19 0....

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Weld Neck Flange Bore Chart

dimensions are in inches (1) Source: ANSI B36.10 (2) These dimensions are the same for inside pipe diameter. ALWAYS specify bore when ordering (3) Other type, sizes, and thicknesses of flanges can be provided to meet application (4) Stocked and manufactured in carbon steel, stainless steel, adn a variety of other metals and alloys (5) Flange Wall Thickness

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Flange Wall Thickness

dimensions are in inches (1) Light wall thicknesses are identical to stainless steel Schedule 10S in sizes through 12”, and to Schedule 10 sizes 14” and larger (2) Standard wall thicknesses are identical to stainless steel Schedule 40S in sizes through 10” (3) Extra heavy wall thicknesses are identical to stainless steel schedule 80S in sizes through 8” (4) Other types, sizes, and thicknesses of flanges can be provided to meet application (5) Stocked and manufactured in carbon steel, stainless steel, and variety of other metals and alloys (6) Weld Neck Flange Bore Chart

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