What are the standards of flanges?

Speaking of flanges, in addition to connecting or closing the pipes, when installing pumps, flange is significant for connected with pipe. After understanding the basic types of flanges and flange faces, the flange standard specification, its resistance pressure capacity, the flange thickness, and applicable countries, also need to be paid attention when selecting.

What are the standards of flanges?
The common flange standards are ANSI, DIN, JIS, GB.
ANSI is most commonly specified in the United States.
DIN is usually specified in Europe.
JIS specifies the standards used for industrial activities in Japan.
GB is the national standard of People's Republic of China.
The international flange standards are mainly use ANSI and DIN, but the flange connection dimensions of these two standards are completely different and unable to exchange.

1. ANSI
Pressure Ratings: 150 LB, 300 LB, 400 LB, 600 LB, 900 LB, 1500 LB, 2500 LB
Flange Types: slip on flange, welding neck flange, threaded flange, lap joint flange, socket weld flange, blind flange
Flange Faces: flat face, raised face, ring type joint, male and female, tongue and groove

2. DIN
Pressure Ratings: PN6, PN10, PN16, PN25, PN40, PN64, PN100, PN160, PN250, PN320, PN400
Flange Types: slip on flange, welding neck flange, threaded flange, lap joint flange, blind flange
Flange Faces: raised face, ring type joint, male and female, tongue and groove

3. JIS
Pressure Ratings: 5K, 10K, 16K, 20K, 30K, 40K, 63K ( 'K' is the unit of pressure rating used in Japan.)
Flange Types: slip on flange, welding neck flange, threaded flange, lap joint flange, socket weld flange, blind flange
Flange Faces: flat face, male and female, tongue and groove

4. GB
Pressure Ratings: 〔series 1〕PN1.0, PN1.6, PN2.0, PN5.0, PN10.0, PN15.0, PN25.0, PN42.0
                              〔series 2〕PN0.25, PN0.6, PN2.5, PN4.0
DIN: PN0.25, PN0.6, PN1.0, PN1.6, PN2.5, PN4.0
Flange Types: slip on flange, welding neck flange, threaded flange, lap joint flange, blind flange
Flange Faces: flat face, raised face, male and female, tongue and groove

ANSI: PN 2.0, PN 5.0, PN 10.0, PN 15.0, PN 25.0, PN 42.0
Flange Types: slip on flange, welding neck flange, threaded flange, lap joint flange, socket weld flange, blind flange
Flange Faces: flat face, raised face, ring type joint, male and female, tongue and groove

The above are the basic flange standards. When considering the flange to be installed with the pump, it is recommended to consult with professionals before selecting.

PTCXPUMP sealless magnetic drive pump provides standard flange specifications(ANSI,JIS,DIN) for easy pipeline connection. It can adjust screw hole position to avoid leakage of inlet and outlet.