Fire Protection OS&Y Flanged Gate Valve
| Product Name | Fire Protection OS&Y Flanged Gate Valve |
| Specifications | Nominal diameter: DN50–600 | Pressure: PN10/16/25/40 | Temp: 0–80°C |
| Category | Fire Protection Control Valve |
| Manufacturer | Shandong Lede Machinery Co., Ltd. |
Product Introduction
The OS&Y (Outside Stem and Yoke) flanged gate valve is designed for fire protection systems. The rising stem provides a visual indication of valve position — open or closed. It features low torque operation, high pressure ratings up to PN40, and replaceable upper sealing parts under water pressure. The epoxy powder coating is suitable for food and pharmaceutical pipeline applications.
Features
- ✓Outside Stem and Yoke (OS&Y) — visual position indicator
- ✓Rising stem with indicator: open vs. closed clearly visible
- ✓Nominal pressure: PN 10/16/25/40
- ✓Temperature range: 0–80°C
- ✓Replaceable upper seal during water supply (no shutdown needed)
- ✓Epoxy powder coating — food/pharma grade
- ✓Standards: EN1171, EN558-1, EN1092-2, ASME-B16.42, GB 5135.11
Technical Data
| Parameter | Specification |
|---|---|
| Nominal Diameter | DN50–600 |
| Nominal Pressure | PN 10 / 16 / 25 / 40 |
| Temperature Range | 0–80 °C |
| Valve Standard | EN1171 |
| Face-to-Face Length | EN558-1 / ISO5752 |
| Flange Standard | EN1092-2 / ISO7005-2 / ASME-B16.42 |
| Grooved Standard | GB 5135.11 / AWWA C606 (optional) |
| Test Standard | EN12266 / AWWA C515 / GB 5135.6 |
| Body Material | Ductile Iron (ASTM A536) |
| Stem Material | Stainless Steel 304 / 1Cr17Ni2Cr13 |
| Seat Material | EPDM |
| Coating | Epoxy powder — food / pharma grade |
Dimension Drawing
14 Series (Z41X-01) — EN558-1 PN 10/16, DN50–600
| DN (mm) | Size (in) | PN/Class | L (mm) | H (mm) | H1 (mm) | H2 (mm) | OD (mm) | OK (mm) | Od (mm) |
|---|---|---|---|---|---|---|---|---|---|
| 50 | 2 | PN10/16 | 150 | 441 | 358.5 | — | 165 | 125 | 22 |
| 65 | 2½ | PN10/16 | 170 | 452 | 359.5 | — | 185 | 145 | 22 |
| 80 | 3 | PN10/16 | 180 | 478 | 378 | — | 200 | 160 | 22 |
| 100 | 4 | PN10/16 | 190 | 559.5 | 449.5 | — | 220 | 180 | 24 |
| 125 | 5 | PN10/16 | 200 | 674.5 | 549.5 | — | 250 | 210 | 28 |
| 150 | 6 | PN10/16 | 210 | 734 | 591.5 | — | 285 | 240 | 28 |
| 200 | 8 | PN10 | 230 | 905.5 | 735.5 | — | 340 | 295 | 32 |
| 200 | 8 | PN16 | 230 | 905.5 | 735.5 | — | 340 | 295 | 32 |
| 250 | 10 | PN10 | 250 | 1100.5 | 900.5 | — | 400 | 350 | 36 |
| 250 | 10 | PN16 | 250 | 1100.5 | 900.5 | — | 400 | 355 | 36 |
| 300 | 12 | PN10 | 270 | 1273 | 1045.5 | — | 455 | 400 | 40 |
| 300 | 12 | PN16 | 270 | 1273 | 1045.5 | — | 455 | 410 | 40 |
| 350 | 14 | PN10 | 290 | 1484.5 | 1232 | — | 505 | 460 | 40 |
| 350 | 14 | PN16 | 290 | 1492 | 1232 | — | 520 | 470 | 40 |
| 400 | 16 | PN10 | 310 | 1684.5 | 1402 | — | 565 | 515 | 44 |
| 400 | 16 | PN16 | 310 | 1692 | 1402 | — | 580 | 525 | 44 |
| 450 | 18 | PN10 | 330 | 1868.5 | 1561 | — | 615 | 565 | 50 |
| 450 | 18 | PN16 | 330 | 1881 | 1561 | — | 640 | 585 | 50 |
| 500 | 20 | PN10 | 350 | 2068 | 1733 | — | 670 | 620 | 50 |
| 500 | 20 | PN16 | 350 | 2090.5 | 1733 | — | 715 | 650 | 50 |
| 600 | 24 | PN10 | 390 | 2390 | 2000 | — | 780 | 725 | 50 |
| 600 | 24 | PN16 | 390 | 2420 | 2000 | — | 840 | 770 | 50 |
14 Series (Z41X-01) — EN558-1 PN 25/40, DN50–300
| DN (mm) | Size (in) | PN/Class | L (mm) | H (mm) | H1 (mm) | H2 (mm) | OD (mm) | OK (mm) | Od (mm) |
|---|---|---|---|---|---|---|---|---|---|
| 50 | 2 | PN25 | 150 | 441 | 358.5 | 420.5 | 165 | 125 | 22 |
| 50 | 2 | PN40 | 150 | 441 | 358.5 | 420.5 | 165 | 125 | 22 |
| 65 | 2½ | PN25 | 170 | 452 | 359.5 | 429.5 | 185 | 145 | 22 |
| 65 | 2½ | PN40 | 170 | 452 | 359.5 | 429.5 | 185 | 145 | 22 |
| 80 | 3 | PN25 | 180 | 478 | 378 | 462 | 200 | 160 | 22 |
| 80 | 3 | PN40 | 180 | 478 | 378 | 462 | 200 | 160 | 22 |
| 100 | 4 | PN25 | 190 | 567 | 449.5 | 553 | 235 | 190 | 24 |
| 100 | 4 | PN40 | 190 | 567 | 449.5 | 553 | 235 | 190 | 24 |
| 125 | 5 | PN25 | 200 | 684.5 | 549.5 | 677 | 270 | 220 | 28 |
| 125 | 5 | PN40 | 200 | 684.5 | 549.5 | 677 | 270 | 220 | 28 |
| 150 | 6 | PN25 | 210 | 741.5 | 591.5 | 747 | 300 | 250 | 28 |
| 150 | 6 | PN40 | 210 | 741.5 | 591.5 | 747 | 300 | 250 | 28 |
| 200 | 8 | PN25 | 230 | 915.5 | 735.5 | 938 | 360 | 310 | 32 |
| 200 | 8 | PN40 | 230 | 923 | 735.5 | 938 | 375 | 320 | 32 |
| 250 | 10 | PN25 | 250 | 1113 | 900.5 | 1161 | 425 | 370 | 36 |
| 250 | 10 | PN40 | 250 | 1125.5 | 900.5 | 1161 | 450 | 385 | 36 |
| 300 | 12 | PN25 | 270 | 1288 | 1045.5 | 1353 | 485 | 430 | 40 |
| 300 | 12 | PN40 | 270 | 1303 | 1045.5 | 1353 | 515 | 450 | 40 |
03 Series (Z41X-02) — EN558-1 PN 10/16, DN50–600
| DN (mm) | Size (in) | PN/Class | L (mm) | H (mm) | H1 (mm) | H2 (mm) | OD (mm) | OK (mm) | Od (mm) |
|---|---|---|---|---|---|---|---|---|---|
| 50 | 2 | PN10/16 | 178 | 441 | 358.5 | — | 165 | 125 | 22 |
| 65 | 2½ | PN10/16 | 190 | 452 | 359.5 | — | 185 | 145 | 22 |
| 80 | 3 | PN10/16 | 203 | 478 | 378 | — | 200 | 160 | 22 |
| 100 | 4 | PN10/16 | 229 | 559.5 | 449.5 | — | 220 | 180 | 24 |
| 125 | 5 | PN10/16 | 254 | 674.5 | 549.5 | — | 250 | 210 | 28 |
| 150 | 6 | PN10/16 | 267 | 734 | 591.5 | — | 285 | 240 | 28 |
| 200 | 8 | PN10 | 292 | 905.5 | 735.5 | — | 340 | 295 | 32 |
| 200 | 8 | PN16 | 292 | 905.5 | 735.5 | — | 340 | 295 | 32 |
| 250 | 10 | PN10 | 330 | 1100.5 | 900.5 | — | 400 | 350 | 36 |
| 250 | 10 | PN16 | 330 | 1100.5 | 900.5 | — | 400 | 355 | 36 |
| 300 | 12 | PN10 | 356 | 1273 | 1045.5 | — | 455 | 400 | 40 |
| 300 | 12 | PN16 | 356 | 1273 | 1045.5 | — | 455 | 410 | 40 |
| 350 | 14 | PN10 | 381 | 1484.5 | 1232 | — | 505 | 460 | 40 |
| 350 | 14 | PN16 | 381 | 1492 | 1232 | — | 520 | 470 | 40 |
| 400 | 16 | PN10 | 406 | 1684.5 | 1402 | — | 565 | 515 | 44 |
| 400 | 16 | PN16 | 406 | 1692 | 1402 | — | 580 | 525 | 44 |
| 450 | 18 | PN10 | 432 | 1868.5 | 1561 | — | 615 | 565 | 50 |
| 450 | 18 | PN16 | 432 | 1881 | 1561 | — | 640 | 585 | 50 |
| 500 | 20 | PN10 | 457 | 2068 | 1733 | — | 670 | 620 | 50 |
| 500 | 20 | PN16 | 457 | 2090.5 | 1733 | — | 715 | 650 | 50 |
| 600 | 24 | PN10 | 508 | 2390 | 2000 | — | 780 | 725 | 50 |
| 600 | 24 | PN16 | 508 | 2420 | 2000 | — | 840 | 770 | 50 |
03 Series (Z41X-02) — EN558-1 PN 25/40, DN50–300
| DN (mm) | Size (in) | PN/Class | L (mm) | H (mm) | H1 (mm) | H2 (mm) | OD (mm) | OK (mm) | Od (mm) |
|---|---|---|---|---|---|---|---|---|---|
| 50 | 2 | PN25 | 178 | 441 | 358.5 | 420.5 | 165 | 125 | 22 |
| 50 | 2 | PN40 | 178 | 441 | 358.5 | 420.5 | 165 | 125 | 22 |
| 65 | 2½ | PN25 | 190 | 452 | 359.5 | 429.5 | 185 | 145 | 22 |
| 65 | 2½ | PN40 | 190 | 452 | 359.5 | 429.5 | 185 | 145 | 22 |
| 80 | 3 | PN25 | 203 | 478 | 378 | 462 | 200 | 160 | 22 |
| 80 | 3 | PN40 | 203 | 478 | 378 | 462 | 200 | 160 | 22 |
| 100 | 4 | PN25 | 229 | 567 | 449.5 | 553 | 235 | 190 | 24 |
| 100 | 4 | PN40 | 229 | 567 | 449.5 | 553 | 235 | 190 | 24 |
| 125 | 5 | PN25 | 254 | 684.5 | 549.5 | 677 | 270 | 220 | 28 |
| 125 | 5 | PN40 | 254 | 684.5 | 549.5 | 677 | 270 | 220 | 28 |
| 150 | 6 | PN25 | 267 | 741.5 | 591.5 | 747 | 300 | 250 | 28 |
| 150 | 6 | PN40 | 267 | 741.5 | 591.5 | 747 | 300 | 250 | 28 |
| 200 | 8 | PN25 | 292 | 915.5 | 735.5 | 938 | 360 | 310 | 32 |
| 200 | 8 | PN40 | 292 | 923 | 735.5 | 938 | 375 | 320 | 32 |
| 250 | 10 | PN25 | 330 | 1113 | 900.5 | 1161 | 425 | 370 | 36 |
| 250 | 10 | PN40 | 330 | 1125.5 | 900.5 | 1161 | 450 | 385 | 36 |
| 300 | 12 | PN25 | 356 | 1288 | 1045.5 | 1353 | 485 | 430 | 40 |
| 300 | 12 | PN40 | 356 | 1303 | 1045.5 | 1353 | 515 | 450 | 40 |
AWWA C515 (Z41X-03) — Class 150/300, DN50–300
| DN (mm) | Size (in) | PN/Class | L (mm) | H (mm) | H1 (mm) | H2 (mm) | OD (mm) | OK (mm) | Od (mm) |
|---|---|---|---|---|---|---|---|---|---|
| 50 | 2 | Cl.150 | 178 | 434.5 | 358.5 | 420.5 | 152 | 120.7 | 22 |
| 50 | 2 | Cl.300 | 178 | 441 | 358.5 | 420.5 | 165 | 127 | 22 |
| 65 | 2½ | Cl.150 | 190 | 448.5 | 359.5 | 429.5 | 178 | 139.7 | 22 |
| 65 | 2½ | Cl.300 | 190 | 454.5 | 359.5 | 429.5 | 190 | 149.4 | 22 |
| 80 | 3 | Cl.150 | 203 | 473.5 | 378 | 462 | 191 | 152.4 | 22 |
| 80 | 3 | Cl.300 | 203 | 483 | 378 | 462 | 210 | 168 | 22 |
| 100 | 4 | Cl.150 | 229 | 564 | 449.5 | 553 | 229 | 190.5 | 24 |
| 100 | 4 | Cl.300 | 229 | 576.5 | 449.5 | 553 | 254 | 200 | 24 |
| 125 | 5 | Cl.150 | 254 | 676.5 | 549.5 | 677 | 254 | 216 | 28 |
| 125 | 5 | Cl.300 | 254 | 689.5 | 549.5 | 677 | 280 | 235 | 28 |
| 150 | 6 | Cl.150 | 267 | 731 | 591.5 | 747 | 279 | 241.3 | 28 |
| 150 | 6 | Cl.300 | 267 | 750.5 | 591.5 | 747 | 318 | 269.7 | 28 |
| 200 | 8 | Cl.150 | 292 | 907 | 735.5 | 938 | 343 | 298.5 | 32 |
| 200 | 8 | Cl.300 | 292 | 926 | 735.5 | 938 | 381 | 330.2 | 32 |
| 250 | 10 | Cl.150 | 330 | 1103.5 | 900.5 | 1161 | 406 | 362 | 36 |
| 250 | 10 | Cl.300 | 330 | 1123 | 900.5 | 1161 | 445 | 387.4 | 36 |
| 300 | 12 | Cl.150 | 356 | 1287 | 1045.5 | 1353 | 483 | 431.8 | 40 |
| 300 | 12 | Cl.300 | 356 | 1305.5 | 1045.5 | 1353 | 520 | 450.9 | 40 |
