Rising Valve Gearbox
Viral Industries is a leading rising valve gearbox manufacturer and supplier in USA, Europe, Canada, and Gulf. Our state-of-the-art facility, advanced technology, and skilled team of engineers and technicians allow us to produce rising valve gearboxes that are durable, efficient, and customizable to meet specific needs. We are proud to be recognized as a leading manufacturer of rising valve gearboxes and look forward to serving you. Furthermore, our Rising Valve Gearbox can deliver torque ranging between 300 Nm – 50000 Nm (221 lbf-ft – 36,880 lbf-ft).
Don’t delay, make the call and discover the exceptional quality and performance that Viral Industries delivers.
Note: Our manufacturing unit is only in India, but we export rising valve gearboxes to the USA, Europe, Canada, and Gulf.

Models of Rising Valve Gearbox
Our rising valve gearbox models, VGB, VGBE, VGBS, and VGBES deliver thrust up to 4,800 kN and torque from 300 Nm to 50,000 Nm, with IP65-IP68 protection and ISO 5210 compliance for reliable manual or automated control of gate, globe & check valves in demanding industrial applications.
Rising Valve Gearbox (VGB Models for Manual or Hand-Wheel Operation)
Engineered for gate, globe & check valves with rising stems, our VGB series delivers 300-50,000 Nm torque with low hand-wheel effort and 90° input/output alignment. Ideal for water, power & industrial systems needing reliable manual control.
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| Viral Ind. Model No. | Output Torque Capacity | Gear Ratio | M.A. (±10%) | Thrust (kN.) | Hand-Wheel Diameter | Hand-wheel Effort | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nm. | lbf-ft | mm | Inch | lbs | Kilogram | ||||||||
| VGB 300 | 300 | 221 | 2.5:1 | 2.17 | 90 | 300 | 12 | 208 | 94 | ||||
| VGB 470 | 470 | 347 | 3:1 | 2.64 | 120 | 400 | 16 | 200 | 91 | ||||
| VGB 600 | 600 | 443 | 3.25:1 | 2.86 | 150 | 400 | 16 | 236 | 107 | ||||
| VGB 1000 | 1000 | 738 | 3.73:1 | 4.5:1 | 3.3 | 4 | 230 | 500 | 20 | 274 | 224 | 124 | 102 |
| VGB 1500 | 1500 | 1106 | 4:1 | 6.3:1 | 3.52 | 5.53 | 263 | 500 | 20 | 383 | 244 | 174 | 111 |
| VGB 2500 | 2500 | 1844 | 5.9:1 | 5.2 | 326 | 600 | 24 | 362 | 164 | ||||
| VGB 4000 | 4000 | 2950 | 6:1 | 5.28 | 450 | 600 | 24 | 568 | 258 | ||||
| VGB 6000 | 6000 | 4425 | 6.1:1 | 5.38 | 680 | 750 | 30 | 669 | 304 | ||||
| VGB 8000 | 8000 | 5900 | 6.1:1 | 5.38 | 900 | 750 | 30 | 892 | 405 | ||||
| VGB 10000 | 10000 | 7376 | 5.8:1 | 5.08 | 1150 | 900 | 36 | 983 | 446 | ||||
| VGB 13000 | 13000 | 9588 | 5.3:1 | 4.69 | 1420 | 900 | 36 | 1385 | 628 | ||||
| VGB 16000 | 16000 | 11801 | 5.3:1 | 4.69 | 1650 | 900 | 36 | 1704 | 773 | ||||
| VGB 20000 | 20000 | 14751 | 5.2:1 | 4.60 | 2200 | 1000 | 40 | 1958 | 888 | ||||
| VGB 30000 | 30000 | 22127 | 5.3:1 | 4.69 | 3350 | 1000 | 40 | 2876 | 1304 | ||||
| VGB 50000 | 50000 | 36880 | 6.25:1 | 5.50 | 4800 | 1000 | 40 | 4090 | 1855 | ||||
NOTE: Below models are available with higher ratio.
1. VGB-4000 WITH GEAR RATIO 8:1
2. VGB-6000 WITH GEAR RATIO 8:1
3. VGB-8000 WITH GEAR RATIO 8:1
Rising Valve Gearbox (VGBE Models for Actuator Operation)
Engineered for automated gate, globe & check valves with rising stems, our VGBE series delivers 300-50,000 Nm torque with 90° input/output alignment and ISO 5210 flanges. Built rugged for reliable actuator control in water, power & industrial systems.
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| Viral Ind. Model No. | Output Torque Capacity | Gear Ratio | M.A. (±10%) | Thrust (kN.) | Input Torque Capacity | Mounting Flange at Actuator Side (ISO 5210) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nm. | lbf-ft | mm | Inch | |||||||||
| VGBE 300 | 300 | 221 | 2.5:1 | 2.17 | 90 | 138 | 102 | F10, F14 | ||||
| VGBE 470 | 470 | 347 | 3:1 | 2.64 | 120 | 178 | 131 | F10, F14 | ||||
| VGBE 600 | 600 | 443 | 3.25:1 | 2.86 | 150 | 210 | 155 | F10, F14 | ||||
| VGBE 1000 | 1000 | 738 | 3.73:1 | 4.5:1 | 3.3 | 4 | 230 | 305 | 249 | 225 | 184 | F10, F14 |
| VGBE 1500 | 1500 | 1106 | 4:1 | 6.3:1 | 3.52 | 5.53 | 263 | 426 | 271 | 314 | 200 | F14, F16 |
| VGBE 2500 | 2500 | 1844 | 5.9:1 | 5.2 | 326 | 482 | 356 | F14, F16 | ||||
| VGBE 4000 | 4000 | 2950 | 6:1 | 5.28 | 450 | 758 | 559 | F14, F16 | ||||
| VGBE 6000 | 6000 | 4425 | 6.1:1 | 5.38 | 680 | 1116 | 823 | F16, F25 | ||||
| VGBE 8000 | 8000 | 5900 | 6.1:1 | 5.38 | 900 | 1488 | 1097 | F16, F25, F30 | ||||
| VGBE 10000 | 10000 | 7376 | 5.8:1 | 5.08 | 1150 | 1967 | 1451 | F25, F30 | ||||
| VGBE 13000 | 13000 | 9588 | 5.3:1 | 4.69 | 1420 | 2770 | 2043 | F30, F35 | ||||
| VGBE 16000 | 16000 | 11801 | 5.3:1 | 4.69 | 1650 | 3409 | 2514 | F30, F35 | ||||
| VGBE 20000 | 20000 | 14751 | 5.2:1 | 4.60 | 2200 | 4352 | 3210 | F30, F35 | ||||
| VGBE 30000 | 30000 | 22127 | 5.3:1 | 4.69 | 3350 | 6392 | 4715 | F30, F35, F40 | ||||
| VGBE 50000 | 50000 | 36880 | 6.25:1 | 5.50 | 4800 | 9091 | 6705 | F30, F35, F40 | ||||
NOTE: Below models are available with higher ratio.
1. VGBE-4000 WITH GEAR RATIO 8:1
2. VGBE-6000 WITH GEAR RATIO 8:1
3. VGBE-8000 WITH GEAR RATIO 8:1
Rising Valve Gearbox with Spur Gearbox (VGBS Models for Manual or Hand-Wheel Operation)
Engineered for high-thrust rising stem valves, our VGBS series delivers 1,000-50,000 Nm torque with ultra-low hand-wheel effort via spur gear reduction. Ideal for gate, globe & check valves in water, power & industrial systems needing precise manual control.
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| Viral Ind. Model No. | Output Torque Capacity | Gear Ratio | M.A. (±10%) | Thrust (kN.) | Hand-Wheel Diameter | Hand-wheel Effort | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| lbs | kilogram | ||||||||||||||||
| Nm. | lbf-ft | A | B | C | A | B | C | mm | Inch | A | B | C | A | B | C | ||
| VGBS 1000 | 1000 | 738 | 14:1 | 9:1 | 7:1 | 11.6 | 7.7 | 6.3 | 230 | 500 | 20 | 77 | 117 | 142 | 35 | 53 | 65 |
| VGBS 1500 | 1500 | 1106 | 19:1 | 12:1 | 10:1 | 16.1 | 10.6 | 8.7 | 263 | 500 | 20 | 84 | 127 | 155 | 38 | 57 | 70 |
| VGBS 2500 | 2500 | 1844 | 37:1 | 25:1 | 17.5:1 | 31.3 | 21.3 | 14.8 | 326 | 600 | 24 | 60 | 88 | 126 | 27 | 40 | 57 |
| VGBS 4000 | 4000 | 2950 | 46:1 | 31:1 | 21:1 | 39.1 | 26.2 | 18.1 | 450 | 600 | 24 | 77 | 114 | 166 | 35 | 52 | 75 |
| VGBS 6000 | 6000 | 4425 | 47:1 | 33:1 | 23:1 | 40.3 | 27.8 | 19.6 | 680 | 750 | 30 | 89 | 130 | 183 | 41 | 59 | 83 |
| VGBS 8000 | 8000 | 5900 | 58:1 | 38:1 | 26:1 | 49.4 | 32.5 | 22.1 | 900 | 750 | 30 | 97 | 148 | 217 | 44 | 67 | 99 |
| VGBS 10000 | 10000 | 7376 | 60:1 | 41:1 | 29:1 | 51.3 | 34.9 | 24.5 | 1150 | 900 | 36 | 98 | 143 | 204 | 44 | 65 | 92 |
| VGBS 13000 | 13000 | 9588 | 65:1 | 43:1 | 30:1 | 55.5 | 37 | 25.6 | 1420 | 900 | 36 | 117 | 176 | 254 | 53 | 80 | 115 |
| VGBS 16000 | 16000 | 11801 | 65:1 | 43:1 | 30:1 | 55.5 | 37 | 25.6 | 1650 | 900 | 36 | 144 | 216 | 313 | 65 | 98 | 142 |
| VGBS 20000 | 20000 | 14751 | 76:1 | 49:1 | 33.5:1 | 64.7 | 42 | 28.5 | 2200 | 1000 | 40 | 139 | 214 | 316 | 63 | 97 | 143 |
| VGBS 30000 | 30000 | 22127 | 144:1 | 93:1 | 63:1 | 122.6 | 78.7 | 53.3 | 3350 | 1000 | 40 | 110 | 171 | 253 | 50 | 78 | 115 |
| VGBS 50000 | 50000 | 36880 | 186:1 | 124:1 | 87:1 | 158.1 | 105.7 | 74 | 4800 | 1000 | 40 | 142 | 213 | 304 | 65 | 96 | 138 |
Rising Valve Gearbox with Spur Gearbox (VGBES Models for Actuator Operation)
Engineered for high-thrust rising stem valves, our VGBES series delivers 1,000 - 50,000 Nm torque with ultra-high ratios and ISO 5210 flanges. Built rugged for reliable actuator control in water, power & industrial systems.
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| Viral Ind. Model No. | Output Torque Capacity | Gear Ratio | M.A. (±10%) | Thrust (kN.) | Input Torque Capacity | Mounting Flange at Actuator Side (ISO 5210) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nm. | lbf-ft | |||||||||||||||
| Nm. | lbf-ft | A | B | C | A | B | C | A | B | C | A | B | C | |||
| VGBES 1000 | 1000 | 738 | 14:1 | 9:1 | 7:1 | 11.6 | 7.7 | 6.3 | 230 | 86 | 130 | 158 | 63 | 96 | 117 | F10, F14 |
| VGBES 1500 | 1500 | 1106 | 19:1 | 12:1 | 10:1 | 16.1 | 10.6 | 8.7 | 263 | 93 | 141 | 172 | 69 | 104 | 127 | F10, F14 |
| VGBES 2500 | 2500 | 1844 | 37:1 | 25:1 | 17.5:1 | 31.3 | 21.3 | 14.8 | 326 | 80 | 117 | 168 | 59 | 87 | 124 | F10, F14 |
| VGBES 4000 | 4000 | 2950 | 46:1 | 31:1 | 21:1 | 39.1 | 26.2 | 18.1 | 450 | 102 | 153 | 221 | 75 | 113 | 163 | F10, F14 |
| VGBES 6000 | 6000 | 4425 | 47:1 | 33:1 | 23:1 | 40.3 | 27.8 | 19.6 | 680 | 149 | 216 | 306 | 110 | 159 | 225 | F10, F14 |
| VGBES 8000 | 8000 | 5900 | 58:1 | 38:1 | 26:1 | 49.4 | 32.5 | 22.1 | 900 | 162 | 246 | 362 | 119 | 182 | 267 | F10, F14 |
| VGBES 10000 | 10000 | 7376 | 60:1 | 41:1 | 29:1 | 51.3 | 34.9 | 24.5 | 1150 | 195 | 286 | 408 | 144 | 211 | 301 | F10, F14, F16 |
| VGBES 13000 | 13000 | 9588 | 65:1 | 43:1 | 30:1 | 55:5 | 37 | 25.6 | 1420 | 234 | 351 | 508 | 173 | 259 | 375 | F14, F16 |
| VGBES 16000 | 16000 | 11801 | 65:1 | 43:1 | 30:1 | 55.5 | 37 | 25.6 | 1650 | 288 | 432 | 626 | 213 | 319 | 462 | F14, F16 |
| VGBES 20000 | 20000 | 14751 | 76:1 | 49:1 | 33.5:1 | 64.7 | 42 | 28.5 | 2200 | 309 | 476 | 702 | 228 | 351 | 518 | F14, F16 |
| VGBES 30000 | 30000 | 22127 | 144:1 | 93:1 | 63:1 | 122.6 | 78.7 | 53.3 | 3350 | 245 | 381 | 563 | 181 | 281 | 415 | F14, F16 |
| VGBES 50000 | 50000 | 36880 | 186:1 | 124:1 | 87:1 | 158.1 | 105.7 | 74 | 4800 | 316 | 473 | 675 | 233 | 349 | 498 | F14, F16, F25 |
Valve Mounting Detail
Ensure seamless integration of our multi-turn bevel gearboxes that support ISO 5210 flanges (F10 to F60) and spindle diameters ranging from 30mm to 180mm, designed for a perfect fit with gate, globe & check valves across global industrial applications.
| Viral Ind. Model No. | Valve Side Mounting Flange (ISO 5210) | Max. Spindle (Stem) Diameter With Threading (mm) |
|---|---|---|
| VGB 300 | F12, F10 | 30 |
| VGB 470 | F14, F12 | 37 |
| VGB 600 | F14, F12 | 45 |
| VGB 1000 / VGBS 1000 | F16, F14 | 55 |
| VGB 1500 / VGBS 1500 | F25, F16 | 57 |
| VGB 2500 / VGBS 2500 | F30, F25 | 70 |
| VGB 4000 / VGBS 4000 | F30, F25 | 75 |
| VGB 6000 / VGBS 6000 | F35, F30 | 100 |
| VGB 8000 / VGBS 8000 | F40, F35 | 110 |
| VGB 10000 / VGBS 10000 | F40, F35 | 115 |
| VGB 13000 / VGBS 13000 | F40, F35 | 125 |
| VGB 16000 / VGBS 16000 | F48, F40 | 130 |
| VGB 20000 / VGBS 20000 | F48, F40 | 150 |
| VGB 30000 / VGBS 30000 | F48, F40 | 170 |
| VGB 50000 / VGBS 50000 | F60, F48 | 180 |
Features:
- Clockwise rotation of input will give clockwise rotation of output.
- Bearings supported assembly.
- Suitable for Actuator operation.
- Removable stem sleeve.
- Grease Lubricant Gearbox.
- Spur Gear Attachment to reduce effort.
- Available for marine application.
- Available for Non-Rising stem valve.
Temperature Limit:
- Normal application -20˚C To 120˚C
- High temperature application up to 150˚C
- Low temperature application up to -50˚C
Material Options for Stem Sleeve:
- AB-2, Ni-D2, S.G.Iron, Manganese Bronze
Enclosure:
- IP-65 ,IP-67, IP-68
Why Choose Us?
At Viral Industries, we are driven by innovation, integrity, and engineering excellence. Our expertise in valve gearbox manufacturing allows us to deliver reliable solutions that adapt to your industry’s toughest challenges - ensuring performance, precision, and long-term trust.

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Flexibility
We understand that every industry has unique requirements. That’s why our manufacturing process is designed for customization and adaptability - ensuring that every gearbox we produce meets your exact operational needs.
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Quality
Quality is at the core of everything we do. From raw material selection to final inspection, we follow stringent quality standards to deliver gearboxes that perform flawlessly, even under the most demanding conditions.
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Sustainability
We are committed to sustainable manufacturing practices that minimize waste and energy consumption. Our goal is to build products that not only perform efficiently but also contribute to a greener industrial future.
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Transparency
Honesty and clarity define our partnerships. We maintain open communication throughout every project - from design to delivery - ensuring you always know what to expect, with no hidden surprises.

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Custom Gearbox Solutions. Trusted Worldwide
As a leading valve gearbox manufacturer, we deliver high-performance, custom gearbox solutions for global industrial applications. We design and build durable valve gearboxes that ensure smooth, reliable operation in challenging industrial environments across the globe.
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100+
Satisficed Clients
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21000sq. ft.
area of manufacturing unit
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300Nm to 250000Nm
We manufacture sizes of gearbox

We export in20+Countries
Our Clients
Get the Answers You Need to Move Forward.
Get clear, concise answers to the most common questions about valve gearboxes. Make informed decisions with expert insights and practical guidance.
A rising valve gearbox controls gate, globe, or check valves where the stem moves linearly upward during opening. Commonly used in water treatment, power plants, oil & gas, and buried installations, it delivers precise thrust (up to 4,800 kN) and torque (300-50,000 Nm) for reliable flow control in demanding environments.
Yes. Our VGB series supports manual/hand-wheel operation, while VGBE models integrate with electric, pneumatic, or hydraulic actuators. For ultra-low effort, VGBS (manual) and VGBES (actuator) models add spur gear reduction, ideal for large or high-pressure valves.
All models feature a top-mounted handwheel and a removable aluminum bronze stem sleeve designed to absorb axial thrust (90-4,800 kN). This ensures smooth operation and protects internal gears, critical for buried, marine, or high-pressure industrial applications.
Absolutely. Every gearbox comes with IP65, IP67, or IP68-rated enclosures, offering full protection against dust, water immersion, and corrosion. They operate reliably from -50°C to +150°C, making them ideal for offshore, desert, chemical, and wastewater applications.
Yes. Standard models like VGB-4000/6000/8000 are available with 8:1 ratios, while VGBS/VGBES spur-bevel hybrids offer ratios up to 186:1-dramatically reducing manual effort or actuator load for large rising stem valves in water, power, or oil & gas infrastructure.


























