Application
Blast furnace seal valve is hydraulically driven. The hydraulic cylinder drives valve plate through curved arm to control the opening and closing of the blast furnace seal valve. It can also realize remote automatic control through output of signal by stroke switch. Blast furnace valve is mainly used for equalizing pressure and releasing gas of the blast furnace charging system.
Parameters
Nominal pressure: 0.2MPa
Sealing test pressure: 0.22MPa
Strength test pressure: 0.3MPa
Working temperature: ≤300℃
Applicable medium: Nitrogen, coal gas
Oil pressure: 8-10MPa
Port size: M18×1.5
Proximity limit: IAS2408LA
| DN | D | D1 | n-φd | A | H | H1 | S | Cylinder diameter |
| 300 | 440 | 395 | 12-φ22 | 360 | 1800 | 1172 | 145 | 80 |
| 350 | 490 | 445 | 12-φ22 | 380 | 1825 | 1205 | 145 | 100 |
| 400 | 540 | 495 | 16-φ22 | 420 | 1810 | 1240 | 145 | 100 |
| 450 | 595 | 550 | 16-φ22 | 460 | 1930 | 1380 | 145 | 100 |
Features
1. Blast furnace seal valve is a commonly used closed valve. It is composed of valve body, valve seat, valve plate and actuating cylinder.
2. The sealing plate can be opened inside the blast furnace seal valve. The surfacing alloy on the sealing surface is featured by good wear resistance. The blast furnace seal valve is also installed with rubber ring to form its composite sealing of hard sealing and soft sealing.
3. Hydraulic cylinder drives valve plate through curved arm to control the opening and closing of the blast furnace seal valve. It can also realize remote automatic control through output of signal by stroke switch. Blast furnace seal valve is mainly used for equalizing pressure and releasing gas of the blast furnace charging system.
