High-Quality Water Seal Globe Valve with Quick - Closing Feature Manufacturers, Manufacturer
Product Description
The product is designed and manufactured according to the national standard GB122355, with novel structure, reasonable material selection and beautiful appearance. The connection end has flange and welding, which can be matched according to different requirements of users.
The stuffing box is designed as a water-sealed structure, connected to a 0.6~1.6MPa water packing, with low friction and good sealing, which can isolate the entire system from the atmosphere and ensure good airtightness.
Compact structure, flexible operation, easy maintenance, long service life. Reliable reverse seal. Packing replacement and maintenance can be carried out without stopping the machine, which is convenient and fast and does not affect the operation of the system.
| Nominal Pressure | Shell Pressure | Seal Pressure | Applicable Media | Applicable Temperature |
| 0.6/1.0/1.6/2.5/4.0/6.4/10.0/16.0MPa | PN X 1.5 times | PN X 1.1 times | Water, steam, air | ≤425℃ |
| Valve body | Valve cover | Valve disc | Valve seat | Valve stem | Filler |
| WCB | 25+D507MO | 25+D577 | 2Crl3 | Flexible graphite | |
| DN | L | D | D1 | D2 | b | Z-θd | H | D0 |
| 10 | 130 | 90 | 90 | 40 | 16 | 4-14 | 272 | 120 |
| 15 | 130 | 95 | 65 | 45 | 16 | 4-14 | 272 | 120 |
| 20 | 150 | 105 | 75 | 55 | 16 | 4-14 | 280 | 120 |
| 25 | 160 | 115 | 85 | 65 | 16 | 4-14 | 332 | 160 |
| 32 | 190 | 135 | 100 | 78 | 18 | 4-18 | 342 | 160 |
| 40 | 200 | 145 | 110 | 85 | 18 | 4-18 | 395 | 200 |
| 50 | 230 | 160 | 125 | 100 | 20 | 4-18 | 431 | 240 |
| 65 | 290 | 180 | 145 | 120 | 22 | 8-18 | 457 | 280 |
| 80 | 310 | 195 | 160 | 135 | 22 | 8-18 | 505 | 320 |
| 100 | 350 | 230 | 190 | 160 | 24 | 8-23 | 549 | 360 |
| 125 | 400 | 270 | 220 | 188 | 28 | 8-25 | 621 | 400 |
| 150 | 480 | 300 | 250 | 218 | 30 | 8-25 | 703 | 400 |
| 200 | 600 | 360 | 310 | 278 | 34 | 12-25 | 828 | 400 |
The valve is designed and manufactured strictly in accordance with the GB122355 national standard, ensuring dimensional accuracy, reliable quality, and aesthetic finishing.
The valve connection ends can be supplied with either flange connections or welded ends to match different operational and piping requirements.
The stuffing box features a specialized water-sealed design connected to a 0.6~1.6MPa water packing. This configuration maintains low friction, provides superior sealing, and completely isolates the system from the external atmosphere.
Yes. Due to the reliable reverse seal mechanism, packing replacement and routine maintenance can be carried out while the system is continuously operating, avoiding downtime.
This valve is suitable for water, steam, and air media, handling operational temperatures up to ≤425℃ across nominal pressure ranges up to 16.0MPa.
The body and bonnet are made of WCB carbon steel, the valve disc utilizes 25+D507MO, the seat is 25+D577, the stem is 2Crl3 stainless steel, and flexible graphite is used for the filler material.
