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High Efficiency Valve Gearbox
Efficiency gains are achieved through multi-start, while using the latest Gearbox Backstop patent to allow the gearbox to be locked.
The overall efficiency of the gearbox is increased by 200% to 300% while optimising costs.
Conventional worgears need to take into account the self-locking characteristics and must maintain an inherent machining angle. STARD AUTOMATION utilizes a patented locking device called Backstop to make high efficiency wormgears self-locking.
Electric applications can be optimised with STARD high efficiency worm gears for faster shutdown times. Manual applications can also be optimised for fewer operating turns, larger manually operated valve pass diameters and lower installation and maintenance costs.
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Cast iron Quarter-Turn Gear Operator
S008 Series Valve Gearboxes
This series consists of 14 models varying from 42:1 to 3525:1 in terms of gear ratio and from 720NM to 150000NM in terms of torque.
- Quarter turn gearbox designed to use for the manual Installation, maintenance, and operation of valves (e.g. butterfly/ball/plug valves) in pipelines.
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Cast Steel Quarter-Turn Gearbox
This single-stage gear operator series with cast steel box is widely used in gas, oil, chemical plants, and nuclear power plants and for general industrial applications, with the torque ranging from 1000NM to 72000NM and the speed ratio from 30:1 to 1728:1.
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Aluminium Alloy Declutchable Gearbox
This series consists of 3 models with the speed ratio varying from 26:1 to 54:1 and the toque ranging from 300NM to 1200NM. The torque difference between every two adjacent models is small, helping to save a lot of costs for customers when selecting a specific product.
The Declutch Gearbox is specially designed for butterfly valve, ball valve & plug valve together with pneumatic actuator.
This device allows manual operation during installing, system testing if when air resource is not loaded.
It can mounted directly on most of the popular rack & pinion style pneumatic actuators in the market.
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Ductile Iron Declutch Gearbox
The Declutch Gearbox, also known as the Declutch-able Manual Override is a device commonly used on industrial valves and actuators to manually operate the valve when needed, regardless of the automation or electrical control system. It provides a method of manual operation that can be used in the event of a power outage or when maintenance or troubleshooting is required without disassembling the actuator.
This series consists of 3 models with the speed ratio varying from 35:1 to 54:1 and the toque ranging from 300NM to 1200NM.The torque difference between every two adjacent models is small, helping to save a lot of costs for customers when selecting a specific product.
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SJ Single Stage Handwheel gear operators Gearbox
SJ single-stage models have a speed ratio from 24:1 to 80:1 and torque from 170NM to 2000NM.
- Quarter turn gearbox designed to use for the manual Installation, maintenance, and operation of valves (e.g. butterfly/ball/plug valves) in pipelines.
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Underground Pipe Valve Gearbox
This series consists of 6 models varying from 182:1 to 780:1 in terms of gear ratio and from 1500NM to 15000NM in terms of torque.
The input stage can be adjusted by 90° and can be operated with a choice of handwheel or T-stem, usually used for valves in underground pipeline networks (e.g. butterfly valves, ball valves, etc.)
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Aluminium Alloy Quarter-Turn Manual Gearbox
SD series partial-turn gear operators adopt a cast aluminum casing and are suitable for conventional industrial applications in power supply, hydro-electric generation, fire fighting, and HVAC systems.
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SLJ WCB Declutchable Gearbox Gear Operators
This series consists of eight models with the speed ratio varying from 26:1 to 520:1 and the toque ranging from 300NM to 22000NM. The torque difference between every two adjacent models is small, helping to save a lot of costs for customers when selecting a specific product.
The Declutch Gearbox is specially designed for butterfly valve, ball valve & plug valve together with pneumatic actuator.
This device allows manual operation during installing, system testing if when air resource is not loaded.
It can mounted directly on most of the popular rack & pinion style pneumatic actuators in the market.
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Electric-powered Partial-turn Gearbox
SG series is a 90° rotary gear operator suitable for use on ball valves, butterfly valves, and plug valves with a manual, electric or hydraulic actuator.
Ratio Speed: 31:1 ~ 190:1;
Output Torque: 650 Nm ~ 50000Nm
Gearbox Material: Ductile iron
Worm Gear Material: QT600-3
Ingress of Protection: IP67 ~ IP68
Both the input and output connecting flanges are designed as per standards ISO 5210 and ISO 5211.
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Bevel Gearbox Multi-turn Gear Operator
SB series multi-turn gear operators
This gear operator series is made of cast steel and the optional material is HT. Bronze, D2 and QT nuts are available to fit in with the valve stem. This series is suitable for use on linear-motion valves including gate valves and globe valves, with the single-stage speed ratio varying from 2.3:1 to 71.1:1 and the torque from 220NM to 13500NM.
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SB Bevel Electric Gear Operator Gearbox
SB series multi-turn gear operators
This gear operator series is made of cast steel and the optional material is HT. Bronze, D2 and QT nuts are available to fit in with the valve stem. This series is suitable for use on linear-motion valves including gate valves and globe valves, with the single-stage speed ratio varying from 2.3:1 to 8:1 and the torque from 216NM to 6800NM.
Products can be used for gate valve, stop valve and other linear movement of the valve, widely used in chemical, food and beverage, metallurgy, offshore platform, pharmaceutical, energy, oil and gas, paper and textile, fire, water conservancy and other industries.
