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DIN Blind Flange
DIN 2527 blind flange PN25, din flange DN10-DN1000
Standard: DIN 2507
Flange type: DIN Blind flange
Size range: DN10-DN1000
Pressure: PN25
Material: Stainless steel , Alloy Steel , Carbon Steel
▲Standard: DIN 2507
▲Flange type: DIN Blind flange
▲Size range: DN10-DN1000
▲Pressure class: PN25
Sealing face of blind flange:
The sealing face of blind flange can be flat face (FF), raised face(RF) or ring joint face(RTJ).The RTJ face blind flange is used for high pressure application,and the matched flange also should be RTJ face.
Surface treatment: Anti-rust oil, transparent/yellow/black,Anti-rust paint, Zinc,Hot dipped galvanized
DIN standard blind flange:
- DIN 2527 PN6 blind flange dimensions: DN10-DN1000
- DIN 2527 PN 10 blind flange dimensions: DN10-DN1000
- DIN 2527 PN16 blind flange dimensions: DN10-DN2000
- DIN 2527 PN 25 blind flange dimensions: DN10-DN1000
- DIN 2527 PN 40 blind flange dimensions: DN10-DN1000
- DIN 2527 PN 64 blind flange dimensions: DN10-DN350
- DIN 2527 PN 100 blind flange dimensions: DN10-DN350
Materials of blind flange:
Carbon steel blind flange:
- ASTM A105 blind flange
- ASTM A350 LF2 blind flange
- SS400 blind flange
- P235GH blind flange
- P250GH blind flange
- C22.8 blind flange
- Q235 blind flange
Stainless steel blind flange:
- ASTM A182 F304 blind flange
- ASTM A182 F304L blind flange
- ASTM A182 F316 blind flange
- ASTM A182 F316L blind flange
- ASTM A182 F321 blind flange
- ASTM A182 F347 blind flange
Alloy steel blind flange:
- ASTM A694 F42 blind flange
- ASTM A694 F46 blind flange
- ASTM A694 F52 blind flange
- ASTM A694 F56 blind flange
- ASTM A694 F60 blind flange
- ASTM A694 F65 blind flange
- ASTM A694 F70 blind flange
- ASTM A182 F5 blind flange
- ASTM A182 F9 blind flange
- ASTM A182 F11 blind flange
- ASTM A182 F12 blind flange
- ASTM A182 F22 blind flange
- ASTM A182 F91 blind flange
Application of blind flange:
Blind flanges are commonly used in petrochemical, pipe engineering, public services and water works.A blind flange is useful for pipe maintenance.In fact,during construction of a pipeline,a blind flange may be installed at the end of the pipeline.This allows for expansion or continuation of the pipeline simply by adding onto the end flange.
Flange type: DIN Blind flange
Size range: DN10-DN1000
Pressure class: PN25
Connection type: Ring type joint, lap-joint face,Raised face, flat face, Large male-female, small male-female,Large tongue & groove,small tongue & groove.
| Dimension and Weight of DIN 2527 PN 25 Blind Flange | ||||||
| Nominal Pipe Size | Flange Dimension | Screw Parameter | Approx. Flange Weight | |||
| Flanges Dia | Thk of Flange | Dia of Bolt Circle | No. of holes | Dia of Bolt Holes | ||
| DIN | D | b | k | X | d2 | KG/PCS |
| 10 | 90 | 16 | 60 | 4 | 14 | 0.72 |
| 15 | 95 | 16 | 65 | 4 | 14 | 0.81 |
| 20 | 105 | 18 | 75 | 4 | 14 | 1.14 |
| 25 | 115 | 18 | 85 | 4 | 14 | 1.38 |
| 32 | 140 | 18 | 100 | 4 | 18 | 2.03 |
| 40 | 150 | 18 | 110 | 4 | 18 | 2.35 |
| 50 | 165 | 20 | 125 | 4 | 18 | 3.2 |
| 65 | 185 | 22 | 145 | 4 | 18 | 4.29 |
| 80 | 200 | 24 | 160 | 8 | 18 | 5.54 |
| 100 | 235 | 24 | 190 | 8 | 22 | 7.6 |
| 125 | 270 | 26 | 220 | 8 | 26 | 10.82 |
| 150 | 300 | 28 | 250 | 8 | 26 | 14.6 |
| 175 | 330 | 28 | 280 | 8 | 26 | 17.4 |
| 200 | 360 | 30 | 310 | 12 | 26 | 22.47 |
| 250 | 425 | 32 | 370 | 12 | 30 | 33.51 |
| 300 | 485 | 34 | 430 | 12 | 30 | 46.29 |
| 350 | 555 | 38 | 490 | 16 | 33 | 68.08 |
| 400 | 620 | 40 | 550 | 16 | 36 | 89.59 |
| 500 | 730 | 45 | 660 | 20 | 36 | 140.66 |
| 600 | 845 | 48 | 770 | 20 | 39 | 202.3 |
| 700 | 960 | 50 | 875 | 24 | 42 | 271.05 |
| 800 | 1085 | 54 | 990 | 24 | 48 | 373.52 |
| 900 | 1185 | 58 | 1090 | 28 | 48 | 479.07 |
| 1000 | 1320 | 62 | 1210 | 28 | 56 | 632.47 |
