Manufacturer, exporter & suppliers of ASME/ANSI B16.5 carbon steel Blind Flange, stainless steel Blind Flange, alloy steel Blind Flange
We manufacturer steel flanges which meet all international quality standards such as DIN, EN1092-1, BS4504, ANSI, API, MSS, AWWA, UNI, JIS, SANS, GOST, NFE, ISO, AS, NS BLRF Flanges etc. We are manufacturing 75lbs, 150lbs, 300lbs, 600lbs, 900lbs, 1500lbs, 2500lbs, PN6, PN10, PN16, PN25, PN40, PN63, PN64, PN100, GOST 12820 and GOST 12821, PN0.6MPA, PN1.0MPA, PN1.6MPA, PN2.5MPA, PN4.0MPA, SANS1123 or SABS1123, 600kpa, 1000kpa, 1600kpa, 2500kpa, 4000kpa flange ratings as per application or client’s requirement. Commonly referred as blanking flanges, Blind pipe flanges are widely used in high pressure applications. Blind flanges are generally used to seal the end of a piping system to prevent flow of liquids or gases. The use of blind flanges allows ease of access to a piping system once it has been closed.
Our factory is located at Village Poman, Taluka Vasai, District Thane, Maharashtra, India. It is easily accessible through NH No.8 and 35 K.M. from International & Domestic airports. We have invested 3 million dollars (20 Million Rupees) to upgrade our factory making it of world level with high grade sophisticated production equipments producing all grades of Flanges with atomization and electric panel control with green technology.
Types of Flanges
- Threaded Flange
- Weld Neck Flange
- Slip On Flange
- Socket Weld Flange
- Blind Flange
- Lap Joint Flange
- Plate Flange
- Forged Flange
Our blind flanges are available with raised or RTJ faces and also with female threads. Blind flanges can be supplied with or without hub as per the customer requirements.
Types of Flanges
| 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 Flange/ BLRF 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 Flange/ BLRF Flanges | ASTM A182 F202, F304/304L/304H, F316/316L, F316H, F316TI, F310, F321, F904L |
| Alloy Steel Blind Flange/ BLRF Flanges | ASTM A182 F1, F5, F9, F11, F22, F91 |
| Special Alloy Blind Flange/ BLRF 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 |
Blind Flange Dimensions & Tolerances
Click on below to check industrial pipe fittings & steel flanges dimensions
- Dimensions of Buttweld Fittings (ANSI B 16.9 & B 16.28)
- Dimensions of Buttweld Fittings (ANSI B 16.9 & MSS SP 43)
- Dimensions of Reducing Tees (ANSI B 16.9) -Page 1
- Dimensions of Reducing Tees (ANSI B 16.9) -Page 2
- Dimensions of Class 150 Blind Flange (ANSI B 16.5)
- Dimensions of Class 300 Blind Flange (ANSI B 16.5)
- Dimensions of Class 600 Blind Flange (ANSI B 16.5)
- Dimensions of Class 900 Blind Flange (ANSI B 16.5)
- Dimensions of Class 1500 Blind Flange (ANSI B 16.5)
- Dimensions of Class 2500 Blind Flange (ANSI B 16.5)
- Dimensions of Socket-Welding Fittings (ANSI B16.11)
- Dimensions of Socket- Weld and Threaded Union
- Dimensions of Forged Threaded Fittings (ANSI B 16.11)
- Dimensions of Plugs & Bushings (ANSI B 16.11)
- Dimensions of Threaded Fittings (ANSI B 16.11)
- Dimensional Tolerances of Blind Flange (As per ANSI B 16.5) (mm)
- Dimensional Tolerances of Fittings (ANSI B 16.9, B 16.28)
Blind Flange Marking
Every Standards have clearly requirements for steel flanges’ marking style, usually the marking words include seller’s Logo, buyer’s Logo (OEM), standard number, flange’s type, flange’s pressure, flange’s size, flange’s material, place of origin, heat number and other words for convenient to trace. If the flanges repaired by welding, it must mark on flanges showing this flange repared by welding. If the flange’s dimensions (OD, ID, PCD, Thickness, Holes number, Holes diameter, Tolerance etc) are different with the normal standard, it also must mark on flanges where it is different with normal ones. Another important place is heat number marking, it is the tracing base for every piece flange, and from the heat number we can trace to the beginning of raw material import.
- The Marking Style for European Standards Flanges, DIN, UNI, EN 1092-1 norms etc
LOGO, EN 1092-1, TYPE 01, PN16, DN80, 88.9, P265GH, HEAT NUMBER - The Marking Style for ANSI, ASME Standards Flanges, ANSI, ASME, AWWA norms etc
LOGO, ASME B16.5, CLASS 150#, SLIP-ON RF, A105, HEAT NUMBER - The Marking Style For JIS, KS norms etc, special with KS Mark
LOGO, JIS B2220, 5K, 80A, SOP, SF440A, HEAT NUMBER, KS MARK - The Marking Style for BS 4504 norms etc
LOGO, BS 4504, WELD NECK, PN40, DN80, RSt37.2, HEAT NUMBER - The Marking Style for GOST 12820, GOST 12821 norms etc
LOGO, GOST 12820, PN1.6MPA, DN80, Q235B, HEAT NUMBER - The Marking Style for SABS 1123, SANS 1123 norms etc
LOGO, SABS 1123, CLASS 4000/3, NB80, A105, HEAT NUMBER
Preparation Blind Flange for shipment, handling and packaging
Carbon Steel Blind Flange & Stainless Steel Blind Flange are delivered with or without surface protection at the discretion of the manufacturer.
Blind Flange are delivered by the manufacturer in normal packaging, without surface protection, and without end protectors (caps). Special packaging, protective coverings, and end protectors (caps) can be agreed.
Certificates & Approvals
