DHV Fitting Pvt. Ltd. is acknowledged as a manufacturer, exporter & suppliers of Blind Flange & Stainless steel Flanges (Gr. 304, 304L, 316, 316L) available in a variety or grades, materials, and finishes, in metric and inch sizes. These Blind Flange are manufacture in different Material of Flanges like SORF Flanges, Carbon Steel Blind Flange, Stainless Steel Blind Flange, Alloy Steel Blind Flange, Duplex Steel Blind Flange, Inconel Blind Flange, Monel Blind Flange, Hastelloy Blind Flange, Copper Nickel Blind Flange in India & Asia, conform to Slip On specifications.
Blind pipe flanges are used to seal the end of a piping system or pressure vessel openings to prevent flow. Blind pipe flange are mainly used for pressure testing the flow of liquid or gas through a pipe or vessel. Blind pipe flanges also allow easy access to the pipe in the event that work must be done inside the line. Blind pipe flange are also used for high pressure applications
BLIND FLANGES, BL FORGED FLANGES PRODUCTION RANGE
Size: 1/2″ (15 NB) to 48″ (1200NB)
Standards: ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
Pressure Ratings: Class 150, Class 300, Class 400, Class 600, Class 900, Class1500, Class 2500 | PN6, PN10, PN16, PN25, PN40, PN64 etc.
Carbon Steel Blind Flanges: ASTM A105/A105N, A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, A694 F42, F46, F48, F50, F52, F56, F60, F65, F70, A516.60, 65, 70 (Spectacle Blind Flange, Spacer Ring/Spade Flange), Steel RST37.2, C22.8
Stainless Steel Blind Flanges: ASTM A182 F202, F304/304L/304H, F316/316L, F316H, F316TI, F310, F321, F904L
Alloy Steel Blind Flanges: ASTM A182 F1, F5, F9, F11, F22, F91
Special Alloy Blind Flanges: Duplex, Super Duplex, Nickel Alloys
Flange Face Type: Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Coating/Surface Treatment: Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized
Value Added Services: CNC Machining, Customised Flanges
| Drilling | ||||||
|---|---|---|---|---|---|---|
| Nominal Bore | Dia.(D) | Thick.(E) | Dia.(F) | Nbr | Holes | Dia.(C) |
| 1/2″ | 90 | 9.6 | 35.05 | 4 | 15.87 | 60.3 |
| 3/4″ | 100 | 11.2 | 42.93 | 4 | 15.87 | 69.9 |
| 1″ | 110 | 12.7 | 50.80 | 4 | 15.87 | 79.4 |
| 1 1/4″ | 115 | 14.3 | 63.50 | 4 | 15.87 | 88.9 |
| 1 1/2″ | 125 | 15.9 | 73.15 | 4 | 15.87 | 98.4 |
| 2″ | 150 | 17.5 | 91.94 | 4 | 19.50 | 120.7 |
| 2 1/2″ | 180 | 20.7 | 104.63 | 4 | 19.50 | 139.7 |
| 3″ | 190 | 22.3 | 127.00 | 4 | 19.50 | 152.4 |
| 3 1/2″ | 215 | 22.3 | 139.70 | 8 | 19.50 | 177.8 |
| 4″ | 230 | 22.3 | 157.23 | 8 | 19.50 | 190.5 |
| 5″ | 255 | 22.3 | 185.67 | 8 | 22.22 | 215.9 |
| 6″ | 280 | 23.9 | 215.90 | 8 | 22.22 | 241.3 |
| 8″ | 345 | 27.0 | 269.75 | 8 | 22.22 | 298.5 |
| 10″ | 405 | 28.6 | 325.85 | 12 | 25.4 | 362.0 |
| 12″ | 485 | 30.2 | 381.00 | 12 | 25.4 | 431.8 |
| 14″ | 535 | 33.4 | 412.75 | 12 | 28.57 | 476.3 |
| 16″ | 595 | 35.0 | 469.90 | 16 | 28.57 | 539.8 |
| 18″ | 635 | 38.1 | 533.40 | 16 | 31.75 | 577.9 |
| 20″ | 700 | 41.3 | 584.20 | 20 | 31.75 | 635.0 |
| 24″ | 815 | 46.1 | 692.15 | 20 | 34.92 | 749.3 |