Sanitary Valve is a special form of pipe fittings. All pipe fittings have their own set of standards, and stainless steel pipe fittings are also subject to this set of standards. The following are the standards for common pipe fittings.

Production standards:

Manufacturing is carried out in accordance with ISO, GB, DIN, 3A, IDF, etc. Industrial pipe fittings standards: GB (national standard), JIS (Japanese standard), DIN (German standard), ASTM/ASME (American standard). and other standards.

GB is a mandatory national standard, GB/T is a recommended national standard, ("T" means recommended). Sanitary pipe fittings standards: DIN (German standard), SMS,

ISO (international standard), IDF (International Dairy Federation), 3A, RJT, DS, BS, BPE and other standards

Industrial pipe fittings standards: GB (national standard), JIS (Japanese standard), DIN (German standard), ASTM/ASME (American standard). and other standards. GB is a mandatory national standard, GB/T is a recommended national standard, ("T" means recommended). Standard number: GB/T 12459-2005

Standard name: Steel butt-weld seamless pipe fittings National standard GB12459 Steel butt-weld seamless pipe fittings GB/T13401 Steel plate butt welding pipe fittings GB/T14383 Forged steel socket welding pipe fittings GB/T14626 Forged steel threaded pipe fittings GB9112-9131 Steel pipe flanges, flange covers and flange gaskets

Sinopec standard: SH3408 steel butt welding seamless pipe fittings, SH3409 forged steel socket welding pipe fittings SH3410 steel plate butt welding pipe fittings, SH3406 petrochemical steel pipe flanges.

Ministry of Chemical Industry standard: HGJ514 carbon steel, low alloy steel seamless butt welding pipe fittings, HGJ528 steel seam butt welding pipe fittings, HGJ10 forged steel socket welding pipe fittings, HGJ529 forged steel socket welding, SH3406 petrochemical steel pipe flanges, threaded and butt welding pipes, HGJ-44-76-91 steel pipe flanges, gaskets, fasteners HG20592-20635 steel pipe flanges, gaskets, fasteners.

PetroChina Standards: SY/T0510-1998 steel butt-welding pipe fittings, SY5257-91 steel elbow power standard, GD87-1101 typical design manual for steam and water pipe parts and components of thermal power plants, DL/T515 power station elbows.

American Standards: ASME/ANSIB16.9 factory-made forged steel butt-welding pipe fittings, ASME/ANSIB16.11 socket welding and threaded forged pipe fittings, ASME/ANSIB16.28 steel butt-welding small radius elbows and return elbows, ASMEB16.5 pipe flanges and flange accessories, MSSSP-43 forged stainless steel butt-welding pipe fittings, MSSSP-83 socket welding and threaded unions, MSSSP-97 integrally reinforced pipe seat for socket welding, threaded and butt welding ends.

Japanese standard: JISB2311 general steel butt welding pipe fittings, JISB2312 steel butt welding pipe fittings, JISB2313 steel plate butt welding pipe fittings, JISB2316 steel socket welding pipe fittings. Material standard: 304, 316L, 321, 304L, 316.

Specification standard: Φ19.1-159, length fixed length is 4m, 6m. Finish standard: internal and external mirror finish Ra≤0.8μmm, inner wall mechanical polishing and electropolishing Ra≤0.2μmm, outer surface polished or matte.