| Size in Inch | Size in mm | Outer Dia. | Flange Thick. | Hub OD | Flange Length | RF Dia. | RF Height | Socket Depth | PCD | Socket Bore | No of Bolts | Hole Size | Weight in kg |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | B | C | D | E | F | G | H | J | |||||
| 1/2 | 15 | 95 | 12.7 | 38 | 21 | 34.9 | 2 | 10 | 66.7 | 22.2 | 4 | 5/8 | 1.2 |
| 3/4 | 20 | 115 | 14.3 | 48 | 24 | 42.9 | 2 | 11 | 82.6 | 27.7 | 4 | 3/4 | 1.4 |
| 1 | 25 | 125 | 15.9 | 54 | 25 | 50.8 | 2 | 13 | 88.9 | 34.5 | 4 | 3/4 | 1.4 |
| 1 1/4 | 32 | 135 | 17.5 | 64 | 25 | 63.5 | 2 | 14 | 98.4 | 43.2 | 4 | 3/4 | 1.8 |
| 1 1/2 | 40 | 155 | 19.1 | 70 | 29 | 73 | 2 | 16 | 114.3 | 49.5 | 4 | 7/8 | 2.7 |
| 2 | 50 | 165 | 20.7 | 84 | 32 | 92.1 | 2 | 17 | 127 | 61.9 | 8 | 3/4 | 3.2 |
| 2 1/2 | 65 | 190 | 23.9 | 100 | 37 | 105 | 2 | 19 | 149.2 | 74.6 | 8 | 7/8 | 4.6 |
| 3 | 80 | 210 | 27 | 117 | 41 | 127 | 2 | 21 | 168.3 | 90.7 | 8 | 7/8 | 5.9 |
ANSI B16.5 Class 300 RF CS Socket Weld Pipe Flanges High Pressure
ANSI B16.5 Class 300 RF High Pressure CS Socket Weld Pipe Flange
Socket weld pipe flanges are a less common but equally effective connection for flanges which require less overall available space than a traditional weld neck flange, with a counterbore in the center to allow for a clean weld of pipe into the socket.
Usually furnished in smaller nominal pipe sizes, these make an excellent alternative to weld necks and slip ons when necessary. An assembly with limited space may be an instance in which a socket weld is selected, provided the pressure class is comparatively low and the fluid is not corrosive or for extremely high temperature service.
| Flange Type | Weld Neck Flange, Socket Weld Flange, Slip On Flange, Blind Flange, Thread Flange, Lap Joint Flange, Plate Flange, Orifice Flange, Spectacle Flange, Figure 8 Flange, Paddle Blank, Paddle Spacer, Anchor Flange, Single Blind, Ring Spacer, Reducing Socket Weld flange, Reducing Weld Neck flange, Long Weld Neck Flange SAE Flanges, Hydraulic Flanges, Customized Flanges with drawing. | |
| Material | Carbon steel | A105, A105N, ST37.2, 20#, 35#, C40, Q235, A350 LF2 CL1/CL2, A350 LF3 CL1/CL2, A694 F42, F46, F50, F60, F65, F70, A516 Gr.60, Gr.65, Gr.70 |
| Alloy steel | A182 F11, A182 F22 | |
| Austenitic stainless steel | A182 F304/304L, F316L, A182 F316H, F310, F321, F321H, F347, F347H | |
| Duplex stainless steel | A182 F51 | |
| Super Duplex stainless steel | A182 F53, A182 F55, A182 F60 | |
| Nickel alloy | Nickel 200, Nickel 201 | |
| Titanium alloy | Titan Gr.1, Titan Gr.2 | |
| Hastelloy | Hastelloy C-276, Hastelloy C-22, Hastelloy C-4 | |
| Inconel | Inconel 600, Inconel 625, Inconel 800, Inconel 800H | |
| Monel | Monel 400, Monel K500 | |
| Size | DN15 - DN3000 | |
| Pressure | Class 150# - 2500#, PN 2.5- PN40, JIS 5K - 20K, 3000PSI, 6000PSI | |
| Connection Way | Flat Face (FF), Raised Face (RF), Ring Joint (RTJ), MFM, TG | |
| Standard | ASME, ANSI, DIN, EN, BS, JIS, GB, AWWA, API, SAE, GOST, MSS | |
| Technical | Forged | |
| Package | Plywood Case/ Wooden Case/ Customized Package | |
| Brand | Qishine | |
| Certificates | API, ISO, PED, EC, EU | |
Class 300 Socket Neck Flange Dimensions
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