3-Way L-Type Flanged Ball Valve
Built for versatility and durability, this L-type flanged ball valve ensures reliable directional control in complex pipelines. Suitable for a wide range of fluids, it’s a smart solution for chemical processing, energy, and general industrial use.
Valve Size: DN15 – DN300
Pressure Rating: PN16; 150LB
Body Material: Stainless Steel (CF8/CF8M), Carbon Steel (WCB)
Ball Material: Stainless Steel
Seat Material: PTFE / RPTFE / PEEK
Connection: RF, RTJ
Applicable Temperature: -29 to 121°C
Applicable Media: Nitric acid, acetic acid, water, oil, steam
Product Technical Specifications
Model: Q44F
Design Standard: GB/T 12224, ASME B16.34
End Connection Standard: JB/T 79.1, ASME B16.5
Face-to-Face Dimension: GB/T 12221, ASME B16.10
Pressure Test Standard: GB/T 13927, API 598
Product Dimensions and Structure

| NO. | PART NAME | MATERIAL |
|---|---|---|
| 1 | Handle | WCB |
| 2 | Gland | WCB/291 |
| 3 | Screw | B7/304 |
| 4 | Packing | PTFE |
| 5 | Stem | 20Cr13/304/316 |
| 6 | Ball | 301/304/316 |
| 7 | Seat | PTFE/RPTFE |
| 8 | Body | WCB/CF8/CF8M |
| 9 | Cap | WCB/CF8/CF8M |
| NO. | PART NAME | MATERIAL |
|---|---|---|
| 10 | Seal | PTFE |
| 11 | Nut | 2H/304 |
| 12 | Stud | B7/304 |
| 13 | And cap | 45#/304/316 |
| 14 | O-Ring | NBR |
| 15 | Supporting circle | 45#/304/316 |
| 16 | A seal | PTFE |
| 17 | Cap | WCB/CF8/CF8M |
Performance Parameters
| DN | D1 | d | K | D | f | C | N-ΦZ | L |
|---|---|---|---|---|---|---|---|---|
| 300 | 290 | 375 | 410 | 460 | 2 | 28 | 12-26 | 720 |
| 250 | 240 | 320 | 355 | 405 | 2 | 26 | 12-26 | 670 |
| 200 | 190 | 265 | 295 | 335 | 2 | 24 | 12-22 | 550 |
| 150 | 145 | 210 | 240 | 280 | 2 | 22 | 8-22 | 440 |
| 125 | 119 | 185 | 210 | 245 | 2 | 22 | 8-18 | 380 |
| 100 | 95 | 155 | 180 | 215 | 2 | 20 | 8-18 | 320 |
| 80 | 75 | 135 | 160 | 195 | 2 | 20 | 8-18 | 280 |
| 65 | 60 | 120 | 145 | 180 | 2 | 18 | 4-18 | 260 |
| 50 | 47 | 100 | 125 | 160 | 2 | 16 | 4-18 | 240 |
| 40 | 37 | 85 | 110 | 145 | 2 | 16 | 4-18 | 220 |
| 32 | 28 | 78 | 100 | 135 | 2 | 16 | 4-18 | 200 |
| 25 | 22 | 65 | 85 | 115 | 2 | 14 | 4-14 | 180 |
| 20 | 18 | 55 | 75 | 105 | 2 | 14 | 4-14 | 160 |
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