|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|
Blind flanges are used to seal the end of pipeline or pressure vessel openings. They also allow for easy access into the pipe in case operation must be done inside the pipeline. Face of the flange is available in diversified types, such as raised face, flat face, ring joint, etc. Industrial blind flanges are mainly manufactured with die stamping and machining techniques.
The complex manufacturing technique in forging flanges proposes high technical requirements for our operation. Blind flanges made by Yuanyang are distinguished for low carbon content, rust-proof, sleek shape, dense structure, and large shear and tensile force bearing capacity.
Different from other pipe fittings, the inspection process for blind flange should be done simultaneously during the production process. It involves both the quality of flanges and the working progress of machine, putting forward high requirements for operators' skills and proficiency. Yuanyang possesses over 60 qualified and experienced inspectors to provide powerful guarantee for a reliable quality.