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Hot Stove Valve

  • Hot Stove Valve
  • Hot Stove Valve
  • Hot Stove Valve

Hot stove valve is widely used in the medium-high temperature pipeline as hot stove valve, flue valve and backdraft valve. (Backdraft in blast furnace refers to the operation that when air is cut off, the coal gas residue is discharged through hot air pipe to hot stove or the special chimney.)

Hot stove valve adopts welded structure, forced water cooling system, and forced compression seal. The working temperature of hot stove valve is ≦1350℃. It can meet the special requirement for sealed valve without hot air pressure.

DR43R-4 High Temperature Hot Stove Valve

DR43R-4 high temperature hot stove valve uses a welded structure. The material of sealing surface is 1Cr18Ni9Ti. There are heat-resistant interlayers at both sides of the valve plate. DR43R-4 high temperature hot stove valve is commonly used in high temperature pipelines as chimney valve, backdraft valve and flue valve.

DR43R-4 high temperature hot stove valve adopts a drive system to control the opening and closing of the valve. It ban be equipped with manual hoisting device and hydraulic lifting device.

Technical Parameters
Nominal pressure 0.4MPa
Working temperature ≤1350 ℃
Allowable pressure difference during operation ≤0.01MPa
Cooling water pressure 0.4-0.6MPa
Temperature difference (inlet/outlet) ≤10 ℃
Material 20G, 1Cr18Ni9Ti
Medium Hot air, fume
Main Structure Dimension /Unit: mm
DN D D1 D2 L b N-d d1 d2 d3 Hmax H1 H2 Hole Stroke
500 1220 1140 420 550 40 30-33 R11/4 R2 G2 4115 820 1665 P 825
700 1420 1340 620 550 40 36-33 R11/4 R2 G21/2 4750 1030 1975 P 970
900 1700 1620 800 600 50 40-34 R11/4 R2 G21/2 5445 1210 2285 T 1175
1000 1870 1770 1000 600 50 48-34 R11/4 R2 G21/2 5655 1215 2390 T 1275
1100 1900 1780 1100 650 60 48-34 R11/2 R21/2 G21/2 6005 1270 2545 T 1375
1200 2280 2180 1200 700 60 48-34 R11/2 R21/2 R21/2 6405 1420 2750 P 1530
1300 2600 2430 1160 700 60 52-45 R11/2 R21/2 G21/2 6910 1585 2975 T 1700
1500 2810 2720 1500 700 70 52-56 R11/2 R21/2 G21/2 7730 1705 3355 P 1900
1700 2740 2640 1500 700 70 56-46 R2 R3 G3 7910 1610 3490 P 2000
1800 2960 2850 1600 700 70 60-60 R2 R3 G3 8275 1720 3655 P 2000

Note: Hole position "T" stand for the hole d is at the vertical center line. Hole position "P" stand for the hole d is symmetric to the vertical center line.

Technical Parameters
DN 500 700 900 1000 1100 1200 1300 1500 1700 1800
Weight（KG） 2900 3820 5700 6500 7400 10700 11000 17400 17450 21700
Flow rate m3/h Valve body 25 35 45 50 55 55 55 60 60 80
Valve plate 7 15 20 22 25 25 30 40 45 50
Sealing surface material 1Cr18Ni9Ti
Refractory material RF-1
DR743R-4 High Temperature Hot Stove Valve

Structure Characteristics
DR743R-4 high temperature hot stove valve adopts a welded structure. The material of sealing surface is 1Cr18Ni9Ti. There are heat-resistant interlayers at both sides of the valve plate. DR743R-4 high temperature hot stove valve is broadly applied in high temperature pipelines as chimney valve, backdraft valve, cold blast mixing shut-off valve and flue valve.

Drive: hydraulic drive, with a signal switch.
Type of opening and closing: forced opening and closing

Technical Parameters
Nominal pressure 0.4MPa
Working temperature ≤1350 ℃
Allowable pressure difference during operation ≤0.01MPa
Cooling water pressure 0.4-0.6MPa
Temperature difference (inlet/outlet) ≤10 ℃
Material 20G, 1Cr18Ni9Ti
Medium Hot air, fume
Main Structure Dimension /Unit: mm
DN D D1 D2 L L1 L2 L3 b H H1 N-d d1 d2 d3 Hole
500 1220 1140 420 550 1230 793 573 50 4370 3550 30-33 R11/4 R2 G3 P
700 1420 1340 620 550 1518 1038 710 40 5090 4060 36-33 R11/4 R2 G21/2 P
900 1700 1620 800 600 1768 1178 710 50 5710 4500 40-34 R11/4 R2 G21/2 T
1000 1870 1770 1000 600 1806 1216 710 50 6000 4785 48-34 R11/4 R2 G21/2 T
1100 1900 1780 1100 650 1836 1246 710 60 6355 5085 48-34 R11/2 R21/2 G21/2 T
1200 2280 2180 1200 700 1930 1330 710 60 6825 5350 48-34 R11/2 R21/2 R21/2 P
1300 2600 2430 1300 700 2020 1420 710 60 7310 5725 52-45 R11/2 R21/2 R21/2 T
1500 2810 2720 1500 700 2210 1610 710 70 8080 6375 52-56 R11/2 R21/2 G21/2 P
1700 2740 2640 1500 700 2210 1610 710 70 8080 6375 56-46 R2 R3 R3 P
1800 2960 2850 1600 700 2430 1620 710 70 8160 6550 60-60 R2 R3 R3 P

Note: Hole position "T" stands for that the hole d is at the vertical center line. Hole position "P" stands for that the hole d is symmetric to the vertical center line.

Technical Parameters
DN 500 700 900 1000 1100 1200 1300 1500 1700 1800
Weight(KG) 3920 4925 6900 7500 8800 10700 12500 18900 18950 21890
Stroke 825 900 1175 1275 1375 1530 1700 1900 2000 2100
Flow rate m3/h Valve body 25 35 45 50 55 55 55 60 60 80
Valve plate 7 15 20 22 25 25 30 40 45 50
Cylinder Diameter 50 50 100 100 100 100 100 100 100 100
Port size M18*1.5 M27*2
Hydraulic pressure (MPa) 8
Sealing surface material 1Cr18Ni9Ti
Limit switch LXP1-120/1UA
Refractory materials RF-1
DR943R-4 High Temperature Hot Stove Valve

Structure Characteristics
DR943R-4 high temperature hot stove valve has a welded structure. The material of sealing surface is 1Cr18Ni9Ti. There are heat-resistant interlayers at both sides of the valve plate. DR943R-4 high temperature hot stove valve is broadly applied in high temperature pipelines as chimney valve, backdraft valve, cold blast mixing shut-off valve and flue valve.

Drive: Electric drive
Type of opening and closing: forced opening and closing

Technical Parameters
Nominal pressure 0.4MPa
Working temperature ≤1350 ℃
Allowable pressure difference during operation ≤0.01MPa
cooling water pressure 0.4-0.6MPa
Temperature difference (inlet/outlet) ≤10 ℃
Material 20G, 1Cr18Ni9Ti
Medium Hot air, fume
Main Structure Dimension /Unit: mm
DN D D1 D2 L L1 L2 L3 b H H1 N-d d1 d2 d3 Hole
500 1220 1140 420 550 1994 940 575 50 4500 3680 30-33 R11/4 R2 G3 P
700 1420 1340 620 550 2114 1000 710 40 5090 4060 36-33 R11/4 R2 G21/2 P
900 1700 1620 800 600 2314 1100 710 50 5790 4580 40-34 R11/4 R2 G21/2 T
1000 1870 1770 1000 600 2314 1100 710 50 6000 4785 48-34 R11/4 R2 G21/2 T
1100 1900 1780 1100 650 2314 1100 710 60 6350 5080 48-34 R11/2 R21/2 G21/2 T
1200 2280 2180 1200 700 2314 1100 710 60 6800 5375 48-34 R11/2 R21/2 R21/2 P
1300 2600 2430 1300 700 2020 1420 710 60 7310 5725 52-45 R11/2 R21/2 R21/2 T
1500 2810 2720 1500 700 2724 1300 710 70 8070 6365 52-56 R11/2 R21/2 G21/2 P
1700 2740 2640 1500 700 2314 1100 710 70 8070 6356 56-46 R2 R3 R3 P
1800 2960 2850 1600 700 2724 1300 710 70 8150 6540 60-60 R2 R3 R3 P

Note: Hole position "T" stands for that the hole d is at the vertical center line. Hole position "P" stands for that the hole d is symmetric to the vertical center line.

Technical Parameters
DN 500 700 900 1000 1100 1200 1300 1500 1700 1800
Weight(KG) 3920 4925 6900 7500 8800 10700 12500 18900 19200 20760
Stroke 825 970 1175 1275 1375 1530 1700 1900 2000 2000
Cooling water Flow rate m3/h Valve body 25 35 45 50 55 55 55 60 60 80
Valve plate 7 15 20 22 25 25 30 40 45 50
Electric actuator 380V 3 Phase 50HZ
Sealing surface material 1Cr18Ni9Ti
Limit switch LXP1-120/1UA
Refractory material RF-1
DR42PH-4 Non Driving Blast Admixing Shut off Valve

DR42PH-4 non driving blast admixing shut off valve is appropriate for hot stove system of large and medium-sized blast furnace as hot air valve, chimney valve and high temperature flue valve, etc. DR42PH-4 non driving blast admixing shut off valve is characterized by simple structure, large cooling water jacket and low requirement for water quality.

Main Structure Dimension /Unit: mm
DN D0 D D1 L n-d b d1 d2 d3 d4 H1 H2 L1 S
500 526 1180 1120 320 28-30 30 2-R11 /4 2-R1 Rc11/2 80 1427 2350 25 610
700 720 1550 1470 450 42-27 40 4-R2 4-R11/2 Rc2 80 2305 3300 30 800
900 900 1640 1560 500 48-27 40 4-R2 4-R11/2 Rc21/2 49 2475 3500 60 1000
1100 1100 2100 2000 530 48-34 50 4-R2 4-R11/2 Rc21/2 50 3100 4480 60 1300
DR942PH-4 Electric Blast Admixing Shut off Valve

Structure Characteristics
DR942PH-4 electric blast admixing shut off valve has a welded structure. The material of sealing surface is 1Cr18Ni9Ti. The valve plate is water cooled, and at the high temperature side of the valve plate, there is heat-resistant interlayer. The cooling system is equipped on the connecting side of the valve body and the hot air duct. The valve rod and valve cover adopt floating seal. DR942PH-4 electric blast admixing shut off valve is electrically driven. It is suitable for blast furnace hot stove system as blast admixing shut off valve.

Technical Parameters
Nominal pressure 0.4
Working temperature High temperature ≤1000 ℃, Low temperature ≤500 ℃
Allowable pressure difference during operation ≤0.01MPa
Cooling water pressure 0.4-0.6MPa
Temperature difference (inlet/outlet) ≤10 ℃
Material Q235, 1Cr18Ni9Ti
Medium Air, fume, coal gas
Main Dimensions /Unit: mm
DN D1 D2 D3 D4 H H1 L b1 b2 n1-d1 n1-n2 Hole
600 990 920 780 730 325 2745 600 35 45 24-30 20-26 P
700 1080 1000 900 840 3665 3090 530 35 45 30-34 28-28 P
1000 1510 1410 1220 1150 4875 4025 590 40 45 36-33 24-33 P
DR742PH-4 Hydraulic Blast Admixing Shut Off Valve

Structure Characteristics
DR742PH-4 hydraulic blast admixing shut off valve uses a welded structure. The material of sealing surface is 1Cr18Ni9Ti. The valve plate is water cooled, and at the high temperature side of the valve plate, there is heat-resistant interlayer. The cooling system is equipped on the connecting side of the valve body and the hot air duct. The valve rod and valve cover adopt floating seal. DR742PH-4 hydraulic blast admixing shut off valve is hydraulically driven. It is suitable for blast furnace hot stove system as blast admixing shut off valve.

Technical Parameters
Nominal pressure 0.4
Working temperature High temperature ≤1000 ℃ Low temperature ≤500 ℃
Allowable pressure difference during operation ≤0.01MPa
Cooling water pressure 0.4-0.6MPa
Temperature difference (inlet/outlet) ≤10 ℃
Material Q235, 1Cr18Ni9Ti
Applicable medium Air, fume, coal gas
Main Dimensions /Unit: mm
DN D1 D2 D3 D4 H H1 L b1 b2 n1-d1 n1-n2 Hole
600 990 920 780 730 3325 2745 600 35 45 24-30 20-26 P
700 1080 1000 900 840 3665 3090 530 35 45 30-34 28-28 P
1000 1510 1410 1220 1150 4875 4025 590 40 45 36-33 24-33 P
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