|Flange America standard||1/2"~100"||DN15-DN2500||Class150~Class2500|
|Flange Europe standard||1/2"~100"||DN15-DN2500||PN2.5~PN400|
|Austenitic stainless steel||Super duplex stainless steel||Nickel-based alloy steel||Carbon steel/alloy steel||Other materials|
|304 304L 304H 304LN||S31803 S32205||N10276 N04400 N06600||Q235 20# 20G||TA1 TA2 TA3 TC1~TC9|
|316 316L 316H 316Ti||S32304 S32760||N06600 N06625 N06690||WPB A105 16Mn||LF2 LF3 LF5 LF6 LF10|
|310S 321 321H 347||S32550 S32750||N08800 N08825 N08904||45# 15CrMo||Al, Ti, martensite|
|S31254||S33400||N08020 N08810 N08811||A350LF2 A420Gr.WPL6|
Loose ring flange comes in two pieces: the center collar and the outer ring. It is designed to connect industrial pipelines and equipment with bolts.
Loose ring flange helps users to save the material considerably: the ring is made from low-grade material, and the center collar adopts the material the same with the pipe. Loose plate flangefeatures limited bearing capacity, and low strength in the ring, so users are suggested to apply it for some specific applications.
Loose ring flanges are produced with die stamping and machining techniques. Welding or casting treatment is unacceptable.
At Yuanyang, quality is our first priority. We purchase the raw materials only from well-known brands, and have set strict inspection procedures in the production line. Materials are marked with different colors so that they are easily distinguished; and 100% spectral detection is conducted for all of the finished fittings before shipping.