Product model: DQ11Y/F
Nominal diameter: DN15 to DN50
Structural form: spherical
Nominal pressure: 1.6Mpa to 16.0Mpa
Connection method: Thread
Applicable temperature: -46 ℃~-101 ℃~-196 ℃
Drive mode: manual, pneumatic, electric
Valve body material: cast steel, stainless steel
Manufacturing standards: National standard GB, German DIN, American API, ANSI
Applicable media: ethylene, liquid oxygen, liquid hydrogen, liquid nitrogen, liquid ammonia, liquid propane, liquefied natural gas
Widely used: petroleum, chemical, power, environmental protection, water conservancy, heating, water supply and drainage, industry, machinery
Product drawing
Product dimensions
| DN | Inch | L | d | L1 | D | D1 | H | W |
| 15 | 1/2" | 92 | 13 | 9.6 | 36 | 21.8 | 230 | 160 |
| 20 | 3/4" | 111 | 18 | 12.7 | 42 | 27.3 | 260 | 220 |
| 25 | 1" | 127 | 23 | 12.7 | 52 | 33.8 | 280 | 220 |
| 32 | 1 1/4" | 140 | 28 | 12.7 | 60 | 42.6 | 290 | 250 |
| 40 | 1 1/2" | 152 | 35 | 12.7 | 68 | 48.7 | 320 | 300 |
| 50 | 2" | 178 | 45 | 15.9 | 80 | 61.2 | 340 | 350 |
Technical Documentation
1. Implement standard JB/T 7749-1995
2. Structural Length Standard GB/T 12221-2005
3. Flange size standard JB/T 79-2015
4. Testing standard JB/T 9092-1999
5. Pressure temperature rating GB/T 9124-2019
Product Parts List
| serial number | Part Name | AS to ASTM | SS to ASTM |
| Type A352 LCB | Type A352 LC3 | Type F304(L) | Type F304(L) |
| 1、2 | Valve body and valve cover | Type A352 LCB | Type A352 LC3 | A182 F304(L) | A182 F304(L) |
| 3 | Equal length double headed bolt | A193L7+cadmium plating | A193 3 B8 | A193 B8 | A193 B8M |
| 4 | nut | A193L7+cadmium plating | A194 8 | A194 8 | A194 8M |
| 5、8 | Sealing rings and gaskets | RTFE+Cu powder/Nylon 1010/PPL |
| 6 | sphere | A182 F304 | A182 F304（L） | A182 F304(L) | A182 F316(L) |
| 7 | valve stem | A182 F304 | A182 F304（L） | A182 F304(L) | A182 F316(L) |
| 9、10 | Thrust plate, packing | RTFE+Cu powder/nylon 1010/PPL, carbon fiber |
| 11 | cover pressing | A105N | A351 CF8 |
| 12 | positioning piece | A182 F321 |
| 13 | Flat nut | A194 4+cadmium plating | A194 8 | A194 8 | A194 8 |
| 14 | handle | A193 L7+cadmium plating | A193 B8 | A193 B8 | A193 B8 |
| 15 | cylindrical pin | Q235A |
| Applicable Temperature |
| ≥-40°C | ≥-101°C | ≥-196°C |
