Blind Flanges Stockist , Suppliers & Exporters

Riddhi Siddhi Metalloys is one of the specialized Supplier, Trader and Stock Holder of premium quality of Blind Flanges as compared to other dealers. We provide vast variety of products in customized sizes, shapes, grades, dimensions and specification as per customer’s requirement. We supply huge range of products to the Domestic and International clients.

The purpose of Blind Flanges is to block offa section of pipe or a nozzle on a vessel that is not used. Blind Flanges are used in various sectors like Textile, Paper, Engineering, Dairy, Sugar, Cement, Petrochemical, Oil & Gas power, Onshore & Offshore, Plumbing, Heating, Water supply, Fabrication, Food processing industry, Structural pipe and many more.

Blind Flanges are provided in various materials like Stainless Steel Blind Flanges, Hastelloy Blind Flanges, Inconel Blind Flanges, Monel Blind Flanges, Nickel Alloy Blind Flanges, Alloy 20 Blind Flanges, SMO 254 Blind Flanges, Titanium Blind Flanges, Copper Nickel Blind Flanges, Duplex Blind Flanges, Super Duplex Blind Flanges and Alloy Steel Blind Flanges.

We offer Blind Flanges at a Affordable Price to our customer.

Blind Flanges Specification

Type Blind Flange
Size ½” (15 NB) to 48″ (1200NB)
Standard ANSI B16.5, ANSI B16.47, ANSI B16.36, ANSI B16.48, BS 4504, EN1092, UNI 2277/2278, DIN, JIS, SABS1123, GOST-12820
Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.
DIN DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636,DIN2637, DIN2638, DIN2673
BS BS4504 , BS4504, BS1560, BS10
In Form SORF, WNRF, BLRF, SWRF, LAP Joint, Threaded, Reducing, Spectacle, etc
Specialize As per drawing
Coating/Surface Treatment Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized
Connection Type Ring Type Joint, Lap-Joint Face, Raised Face, Flat Face, Large Male-Female, Small Male-Female, Large Tongue & Groove, Small Tongue & Groove
Flange Face Type Flat Face (FF), Raise Face (RF), Ring Joint (RJT)
Dimensions ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings

Blind Flanges Materials & Grades

Materials Standard, Grades
Stainless Steel Blind Flanges ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H,904L
Carbon Steel Blind Flanges ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F70
Alloy Steel Blind Flanges ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91
Duplex Steel Blind Flanges ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61
6% Moly / Super Duplex Blind Flanges ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61
Low Temperature Steel Blind Flanges ASTM A350 LF2, LF3, LF6
High Yield Blind Flanges ASTM A694 F42, F52, F60, F65, F70
Nickel Alloys Blind Flanges ASTM SB564, SB160, SB472, SB162 – Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020)
Copper Alloys Blind Flanges ASTM SB 61 , SB62 , SB151 , SB152 – UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200
Alloys Blind Flanges ALLOY 20, ALLOY C, ALLOY C276, ALLOY B2
Other Grade of Blind Flanges Bronze, Brass, Cupro Nickel, Titanium, Inconel, Monel, Hastelloy