GB Swing Check Valve
This GB Swing Check Valve features a robust design for preventing backflow in pipelines. Ideal for water, oil, and steam systems, it ensures reliable operation under high pressure and temperature conditions in industrial and chemical applications. Durable materials enhance longevity.
Valve Size: DN25 – DN500
Pressure Rating: PN16 – PN64
Body Material: WCB, WCC, LCB, LCC, CF8, CF3, CF8M, CF3M, WC6, WC9, C5, C6
Bonnet Material: WCB, WCC, LCB, LCC, CF8, CF3, CF8M, CF3M, WC6, WC9, C5, C6
Sealing Material: 13Cr, STL, Hastelloy, Titanium Alloy, Cobalt-based Alloy, Zirconium
Applicable Temperature: -29°C to 425°C
Applicable Media: Water, Oil, Steam
Product Technical Specifications
| Model | H44W(H Y) |
|---|---|
| Design Standard | GB/T12236 |
| Connection End Standard | JB/T 79.1 GB/T9124.1 HG/T20592 |
| Face to Face Standard | GB/T 12221 |
| Flanged, Welded, Threaded Valve Connections | GB/T 12224 |
| Pressure Test Standard | GB/T 13927 |
Main External and Connection Dimension
Unit: mm
| Type | DN | PN1.6/2.5MPa | WT (kg) | ||||||
|---|---|---|---|---|---|---|---|---|---|
| L | D | D1 | D2 | b | Z-Φd | H | |||
| H44H-16C H44Y-16C H44P-16R H44Y-16R H44Y-16I | 50 | 230 | 160 | 125 | 100 | 16 | 4-Φ18 | 135 | 21 |
| 65 | 290 | 180 | 145 | 120 | 18 | 4-Φ18 | 142 | 28 | |
| 80 | 310 | 195 | 160 | 135 | 20 | 8-Φ18 | 165 | 38 | |
| 100 | 350 | 215 | 180 | 155 | 20 | 8-Φ18 | 180 | 58 | |
| 125 | 400 | 245 | 210 | 185 | 22 | 8-Φ18 | 210 | 92 | |
| 150 | 480 | 280 | 240 | 210 | 24 | 8-Φ23 | 233 | 130 | |
| 200 | 500 | 335 | 295 | 265 | 26 | 12-Φ23 | 304 | 210 | |
| 250 | 550 | 405 | 355 | 320 | 30 | 16-Φ25 | 348 | 294 | |
| 300 | 650 | 460 | 410 | 375 | 30 | 16-Φ25 | 390 | 367 | |
| 350 | 750 | 520 | 470 | 435 | 34 | 16-Φ25 | 430 | 41 | |
| 400 | 850 | 580 | 525 | 485 | 36 | 16-Φ30 | 468 | 461 | |
| 450 | 950 | 640 | 585 | 545 | 40 | 20-Φ30 | 523 | 570 | |
| 500 | 1025 | 705 | 650 | 608 | 44 | 20-Φ34 | 525 | 850 | |
| H44H-25 H44Y-25 H44H-25P H44Y-25R H44Y-25I | 50 | 230 | 160 | 125 | 100 | 20 | 4-Φ18 | 160 | 22 |
| 65 | 290 | 180 | 145 | 120 | 22 | 8-Φ18 | 175 | 29 | |
| 80 | 310 | 195 | 160 | 135 | 22 | 8-Φ18 | 185 | 38 | |
| 100 | 350 | 230 | 190 | 160 | 24 | 8-Φ23 | 220 | 61 | |
| 125 | 400 | 270 | 220 | 188 | 28 | 8-Φ25 | 248 | 96 | |
| 150 | 480 | 300 | 250 | 218 | 30 | 8-Φ25 | 276 | 132 | |
| 200 | 550 | 360 | 310 | 278 | 34 | 12-Φ25 | 350 | 213 | |
| 250 | 650 | 425 | 370 | 332 | 36 | 12-Φ30 | 410 | 297 | |
| 300 | 750 | 485 | 430 | 390 | 40 | 16-Φ30 | 430 | 372 | |
| 350 | 850 | 550 | 490 | 448 | 44 | 16-Φ34 | 518 | 415 | |
| 400 | 950 | 610 | 550 | 505 | 48 | 16-Φ34 | 560 | 480 | |
| 450 | 1025 | 660 | 600 | 555 | 50 | 20-Φ34 | 585 | 610 | |
| 500 | 1150 | 730 | 660 | 610 | 52 | 20-Φ41 | 618 | 920 | |
| Type | DN | PN4.0MPa | WT (kg) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L | D | D1 | D2 | D6 | b | f | f2 | Z-Φd | H | |||
| H44H-40 HH44Y-40 HH44Y-40P HH44Y-40R HH44Y-40I | 50 | 230 | 160 | 125 | 100 | 88 | 20 | 3 | 4 | 4-Φ18 | 169 | 22 |
| 65 | 290 | 180 | 145 | 120 | 110 | 22 | 3 | 4 | 8-Φ18 | 173 | 29 | |
| 80 | 310 | 195 | 160 | 135 | 121 | 22 | 3 | 4 | 8-Φ18 | 185 | 38 | |
| 100 | 350 | 230 | 190 | 160 | 150 | 24 | 3 | 4.5 | 8-Φ23 | 220 | 61 | |
| 125 | 400 | 270 | 220 | 188 | 176 | 28 | 3 | 4.5 | 8-Φ25 | 248 | 96 | |
| 150 | 480 | 300 | 250 | 218 | 204 | 30 | 3 | 4.5 | 8-Φ25 | 270 | 132 | |
| 200 | 550 | 375 | 320 | 282 | 260 | 38 | 3 | 4.5 | 12-Φ30 | 342 | 213 | |
| 250 | 650 | 445 | 385 | 345 | 313 | 42 | 3 | 4.5 | 12-Φ34 | 401 | 297 | |
| 300 | 750 | 510 | 450 | 408 | 364 | 46 | 4 | 4.5 | 16-Φ34 | 423 | 372 | |
| 350 | 850 | 570 | 510 | 465 | 422 | 52 | 4 | 5 | 16-Φ34 | 455 | 415 | |
| 400 | 950 | 655 | 585 | 535 | 474 | 58 | 4 | 5 | 16-Φ41 | 510 | 450 | |
| Type | DN | PN6.4MPa | WT (kg) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L | D | D1 | D2 | D6 | b | f | f2 | Z-Φd | H | |||
| H44H-64 HH44Y-64 HH44Y-64P HH44Y-64R HH44Y-64I | 50 | 300 | 175 | 135 | 105 | 88 | 26 | 3 | 4 | 4-Φ23 | 177 | 27 |
| 65 | 340 | 200 | 160 | 130 | 110 | 28 | 3 | 4 | 8-Φ23 | 197 | 37 | |
| 80 | 380 | 210 | 170 | 140 | 121 | 30 | 3 | 4 | 8-Φ23 | 212 | 57 | |
| 100 | 430 | 250 | 200 | 168 | 150 | 32 | 3 | 4.5 | 8-Φ25 | 248 | 89 | |
| 125 | 500 | 295 | 240 | 202 | 176 | 36 | 3 | 4.5 | 8-Φ30 | 296 | 135 | |
| 150 | 550 | 340 | 280 | 240 | 204 | 38 | 3 | 4.5 | 8-Φ34 | 330 | 184 | |
| 200 | 650 | 405 | 345 | 300 | 260 | 44 | 3 | 4.5 | 12-Φ34 | 385 | 266 | |
| 250 | 775 | 470 | 400 | 352 | 313 | 48 | 3 | 4.5 | 12-Φ41 | 445 | 398 | |
| 300 | 900 | 530 | 460 | 412 | 364 | 54 | 4 | 4.5 | 16-Φ41 | 474 | 643 | |
| 350 | 1025 | 595 | 525 | 475 | 422 | 60 | 4 | 5 | 16-Φ41 | 514 | 815 | |
| 400 | 1150 | 670 | 585 | 525 | 474 | 66 | 4 | 5 | 16-Φ18 | 616 | 1234 | |
Looking for reliable valves without the long lead times?
- YKY helps you cut costs and speed up projects with fully certified, customizable valves—backed by expert support and fast delivery to 30+ countries.
- Start with your specs—we’ll handle design, testing, and delivery.
CONTACT US
Share your specs, flow media, and system type—
we’ll match a valve that fits.