For Export (for other than India) Email: export3@jfengg.com / Phone: +91-9833323751 / +91-22-23634937
The SORF (Slip-On Raised Face) flange, a core component in numerous piping and mechanical systems, is highly valued for its distinct design and properties. This piece of hardware exhibits a unique fusion of practicality and durability, making it a fundamental asset in diverse applications where strength and dependability are essential.
The SORF flange gets its name from its two key features. Firstly, the "Slip-On" property refers to its method of connection. This flange is designed to simply slip onto the attached pipe, rendering the installation process considerably straightforward. Moreover, it enables the alignment of the bolt holes to be much more forgiving, offering advantages during the assembly phase. The ease of installation provided by the slip-on design can save considerable time and effort in the long run, making it a favoured choice among many professionals in the field.
The second characteristic denoted in its name is the "Raised Face" feature. Raised face flanges have a small protrusion or lip around the bore, which provides a sealing surface for the gasket. This area is slightly elevated from the bolting circle face, which enhances the effectiveness of the seal. It is beneficial in conditions where the prevention of media leakage is of utmost importance, making the SORF flange an ideal choice for such applications.
Moreover, SORF flanges come in various sizes and pressure classes to suit different operational requirements. From small-diameter pipes to larger ones, from low-pressure applications to high-pressure ones, a SORF flange is designed to meet the exact specifications. These flanges also comply with several industrial standards like ANSI, ASME, and more, assuring their quality and reliability.
One remarkable property of SORF flanges is their ability to facilitate easy access for inspection, cleaning, and modifications. Because they can be easily slipped off onto the pipe, they offer convenience when routine maintenance is necessary.
Furthermore, SORF flanges demonstrate excellent strength-to-weight ratio. Despite being lighter than their Weld Neck counterparts, they still provide comparable strength, making them efficient and economical choices for many systems.
| Size: | 1/2"NB TO 24"NB IN |
| Class: | 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS DIN Standard ND-6,10, 16, 25, 40 Etc. |
| Materials: | Monel : Grade: Monel 400, Monel K500, Monel R-405 Nickel : Grade: Nickel 200, Nickel 201 Inconel : Grade: Inconel 600, Inconel 601, Inconel 625, Inconel 718 Incoloy : Grade: Incoloy 800, Inconel 800H, 800HT Hastalloy : Grade: Hastalloy B2, Hastalloy B3, Hastalloy C22, Hastalloy C276, Hastalloy X Titanium : Grade: Gr1, Gr2, Gr3, Gr5, Gr7, Gr11 Stainless Steel : Grade: ASTM A182 F202, F304/304L/304H, F316/316L, F316H, F316TI, F310, F321, F904L Carbon Steel : Grade: 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 Duplex Steel: Grade: ASTM / ASME A/SA 182 UNS F44, F45, F51, F53, F55, F60, F61 Alloy Steel: Grade : ASTM A182 F1, F5, F9, F11, F22, F91 |
| Value Added Service: | CNC Machine, Customized Flanges |
| Coating/Surface Treatment: | Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized |
| FLANGE NPS |
Inside Diameter |
Outside Diameter |
Bolt Circle (BC) |
Raised Face (R) |
Raised Face (RF) |
H | Raised Face Thickness (T) |
T1 | Flat Face Thickness (T2) |
Bolt Hole (B) |
No. of Bolt Holes |
| 1/2 | 0.88 | 3.50 | 2.38 | 1.38 | .063 | 1.19 | .62 | .38 | .56 | .62 | 4 |
| 3/4 | 1.09 | 3.88 | 2.75 | 1.69 | .063 | 1.50 | .62 | .44 | .56 | .62 | 4 |
| 1 | 1.36 | 4.25 | 3.12 | 2.00 | .063 | 1.94 | .69 | .50 | .63 | .62 | 4 |
| 1-1/4 | 1.70 | 4.62 | 3.50 | 2.50 | .063 | 2.31 | .81 | .56 | .75 | .62 | 4 |
| 1-1/2 | 1.97 | 5.00 | 3.88 | 2.88 | .063 | 2.56 | .88 | .62 | .82 | .62 | 4 |
| 2 | 2.44 | 6.00 | 4.75 | 3.62 | .063 | 3.06 | 1.00 | .69 | .94 | .75 | 4 |
| 2-1/2 | 2.94 | 7.00 | 5.50 | 4.12 | .063 | 3.56 | 1.12 | .82 | 1.06 | .75 | 4 |
| 3 | 3.57 | 7.50 | 6.00 | 5.00 | .063 | 4.25 | 1.19 | .88 | 1.13 | .75 | 4 |
| 3-1/2 | 4.07 | 8.50 | 7.00 | 5.50 | .063 | 4.81 | 1.25 | .88 | 1.19 | .75 | 8 |
| 4 | 4.57 | 9.00 | 7.50 | 6.19 | .063 | 5.31 | 1.31 | .88 | 1.25 | .75 | 8 |
| 5 | 5.66 | 10.00 | 8.50 | 7.31 | .063 | 6.44 | 1.44 | .88 | 1.38 | .88 | 8 |
| 6 | 6.72 | 11.00 | 9.50 | 8.50 | .063 | 7.56 | 1.56 | .94 | 1.50 | .88 | 8 |
| 8 | 8.72 | 13.50 | 11.75 | 10.62 | .063 | 9.69 | 1.75 | 1.06 | 1.69 | .88 | 8 |
| 10 | 10.88 | 16.00 | 14.25 | 12.75 | .063 | 12.00 | 1.94 | 1.13 | 1.88 | 1.00 | 12 |
| 12 | 12.88 | 19.00 | 17.00 | 15.00 | .063 | 14.38 | 2.19 | 1.19 | 2.13 | 1.00 | 12 |
| 14 | 14.14 | 21.00 | 18.75 | 16.25 | .063 | 15.75 | 2.25 | 1.32 | 2.19 | 1.12 | 12 |
| 16 | 16.16 | 23.50 | 21.25 | 18.50 | .063 | 18.00 | 2.50 | 1.38 | 2.44 | 1.12 | 16 |
| 18 | 18.18 | 25.00 | 22.75 | 21.00 | .063 | 19.88 | 2.69 | 1.50 | 2.63 | 1.25 | 16 |
| 20 | 20.20 | 27.50 | 25.00 | 23.00 | .063 | 22.00 | 2.88 | 1.63 | 2.83 | 1.25 | 20 |
| 22 | 22.22 | 29.50 | 27.25 | 25.25 | .063 | 24.25 | 3.13 | 1.75 | 3.07 | 1.38 | 20 |
| 24 | 24.25 | 32.00 | 29.50 | 27.25 | .063 | 26.12 | 3.25 | 1.82 | 3.19 | 1.38 | 20 |
| Rated Diameter | O.D. of Pipe | Flange Parameter | Neck Size | Size of R.F. | Bolts | Approx. Weight | |||||||
| DN | d1 | D | d5 | b | k | h | d3 | r | d4 | f | No. of holes |
d2 | KG |
| 10 | 17.2 | 90 | 17.7 | 14 | 60 | 20 | 30 | 4 | 40 | 2 | 4 | 14 | 0.56 |
| 15 | 21.3 | 95 | 22 | 14 | 65 | 20 | 35 | 4 | 45 | 2 | 4 | 14 | 0.62 |
| 20 | 26.9 | 105 | 27.6 | 16 | 75 | 24 | 45 | 4 | 58 | 2 | 4 | 14 | 0.91 |
| 25 | 33.7 | 115 | 34.4 | 16 | 85 | 24 | 52 | 5 | 68 | 2 | 4 | 14 | 1.09 |
| 32 | 42.4 | 140 | 43.1 | 16 | 100 | 26 | 60 | 5 | 78 | 2 | 4 | 18 | 1.58 |
| 40 | 48.3 | 150 | 49 | 16 | 110 | 26 | 70 | 5 | 88 | 3 | 4 | 18 | 1.76 |
| 50 | 60.3 | 165 | 61.1 | 18 | 125 | 28 | 85 | 5 | 102 | 3 | 4 | 18 | 2.39 |
| 65 | 76.1 | 185 | 77.1 | 18 | 145 | 32 | 105 | 5 | 122 | 3 | 4 | 18 | 3.1 |
| 80 | 88.9 | 200 | 90.3 | 20 | 160 | 34 | 118 | 5 | 138 | 3 | 8 | 18 | 3.77 |
| 100 | 114.3 | 220 | 115.9 | 20 | 180 | 38 | 140 | 5 | 158 | 3 | 8 | 18 | 4.29 |
| 125 | 139.7 | 250 | 141.6 | 22 | 210 | 40 | 168 | 5 | 188 | 3 | 8 | 18 | 5.86 |
| 150 | 168.3 | 285 | 170.5 | 22 | 240 | 44 | 196 | 5 | 212 | 3 | 8 | 22 | 7.22 |
| 175 | 193.7 | 315 | 196.1 | 24 | 270 | 44 | 224 | 6 | 242 | 3 | 8 | 22 | 9.18 |
| 200 | 219.4 | 340 | 222 | 24 | 295 | 44 | 247 | 6 | 268 | 3 | 8 | 22 | 9.95 |
| 250 | 273 | 395 | 276 | 26 | 350 | 46 | 300 | 6 | 320 | 3 | 12 | 22 | 12.69 |
| 300 | 323.9 | 445 | 327 | 26 | 400 | 46 | 352 | 6 | 370 | 4 | 12 | 22 | 14.4 |
| 350 | 355.6 | 505 | 359 | 26 | 460 | 53 | 398 | 10 | 430 | 4 | 16 | 22 | 22.36 |
| 400 | 406.4 | 565 | 410 | 26 | 515 | 57 | 448 | 10 | 482 | 4 | 16 | 26 | 26.85 |
| 450 | 457 | 615 | 461 | 28 | 565 | 62 | 502 | 10 | 532 | 4 | 20 | 26 | 32.53 |
| 500 | 508 | 670 | 512 | 28 | 620 | 67 | 552 | 10 | 585 | 4 | 20 | 26 | 37.84 |
| 600 | 610 | 780 | 614 | 28 | 725 | 75 | 658 | 10 | 685 | 5 | 20 | 30 | 49.32 |
| 700 | 711 | 895 | 716 | 30 | 840 | 77 | 760 | 10 | 800 | 5 | 24 | 30 | 63.86 |
| 800 | 813 | 1015 | 818 | 32 | 950 | 84 | 864 | 10 | 905 | 5 | 24 | 33 | 85.19 |
| 900 | 914 | 1115 | 920 | 34 | 1050 | 88 | 969 | 10 | 1005 | 5 | 28 | 33 | 101.4 |
| 1000 | 1016 | 1230 | 1022 | 34 | 1160 | 92 | 1071 | 10 | 1110 | 5 | 28 | 36 | 119.7 |
| Stainless Steel SORF Flanges | USD $2.07 - $10.08 / Piece (FOB Price) on request |
| High Nickel Alloys SORF Flanges | USD $8.12 - $20.22 / Piece (FOB Price) on request |
| Duplex & Super Duplex SORF Flange | USD $10.22 - $35.52 / Piece (FOB Price) on request |
| Cupro Nickel SORF Flanges | USD $5.21 - $10.50 / Piece (FOB Price) on request |
| Carbon Steel SORF Flanges | USD $2.10 - $7.12 / Piece (FOB Price) on request |
Products are packaged to ensure that there is no damage during transit. In case of exports, standard export packaging is done in wooden cases. All pipes are marked with Grade, Lot No, Size, Degree and our trade mark. On special requests we can also, make custom marking on our products.
At JF Engineering Products LLP, all fasteners are subject to strict inspection at each stage of the production process, from starting material purchasing to product dispatch. They are visually examined for conformity to ASTM, ASME, MSS, DIN, EN, and JIS codes and standards. Upon request, official certified Inspection Agencies can be called in to witness the material reports, dimensions and quality conformity of products.
Manufacturer Test Certificate as per EN 10204 / 3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report
Delivery time and delivery dates are based on the "type and quantity" of steel ordered. Our sales team will provide a delivery schedule when quoting to you. On rare occasions the delivery schedule may change so please check with our sales department when placing any orders.
Orders will be sent out within 2-3 business days, and may take up to 5-10 business days in transit. If fastener is out of stock, orders may take up to 2-4 weeks to ship. JF Engineering Products LLP will notify buyer if this situation occurs.
JF Engineering Products LLP take immensure pleasure in introducing itself as one of the leading Manufacturer & Exporter of high quality fasteners to meet the customer ultimate requirements in the fields of:
