Gas root flow meter are designed by Greatork, assemble with imported high quality spares, has features like high accuracy, high reliability, wide measure range and high cost performance, are widely used in industry detection & control, city gas detection or measurement. The flow meter range ratio max can reach 1:300, accuracy is 1 class, initial flow minimum can reach 0.01 m3/h, max pressure lose is 0.1KPa to 0.78 kpa.

Gas turbine flow meter integrated flow, temperature and pressure detect function, can autocompensation on temperature, pressure and compressibility factor, client can set standard pressure and temperature value according different industry. It integrated advanced sensor, microprocessor and chip, has advantages like low initional flow, small pressure loss, high anti-vibration feature and strong operation accuracy.

Comparing with intelligent gas root flow meter, mechanical Gas root flow meter removed LCD screen and intelligent modules, keep the mechanical function and mechanical counter, it will save client a lot of money when only need simple and basic flow meter functions. It has features like high accuracy, high reliability, wide range ratio and low initional flow.

Mechanical gas turbine flow meter is sleeve shape designed, one size can used for several flow rate, convenient for upgrade and replacement. Module structure design, easy for maintenance. It can add volume correction instrument, lcd screen, GPRS remote signal communication, intelligent functions when needed in the future.

Quarter turn Gearbox is combined with Multi-turn actuators for quarter-turn applications. It can operate quarter-turn valves and damper for high performance of torque,like ball valve, butterfly valve, etc. Combinations between quarter-turn Gearbox and Multi-turn actuator AVA are available up to 400,000Nm torque. With cast iron housing, actuator ratio is from 40:1 to 5000:1. Worm gearbox can be with lever or without if it is required, max can reach IP68, -60℃ low temperature.

Quarter turn Gearbox QW is full worm gearbox, which can operate 360 degree for quarter turn application, mainly used for butterfly valve, ball valve and damper, manual or motorized operation is optional. The torque is available up to 11250Nm, QW range ratio is from 51:1 to 442:1.The gearbox stanard is IP67, work temperature -20℃ to 80℃, when need special condition application, welcome contact us.

Greatork IP68 gearbox is designed on the basic of standard gearbox, the seal part has enhenced for IP68 application, it's mainly used for butterfly valve, ball valve and damper, can work under water for long time, the torque max can reach 400,000Nm when connect with electric actuator, gearbox ratio from 40:1 to 5000:1. Worm gearbox with lever or without is optional.

Greatork minus 60℃ low temperature gearbox mainly used to extreme low temperature enviroment, especially for North China area, Russia, Ukraine, and Kazakhstan, the torque is as same as standard temeprature worm gearbox, but replaced inside spares to meet extreme low temperature requirement, we also provide customize service, can design and process according client's specific requirement.

ZJY side mount gearbox is mainly designed for convenience of manual operation or actuator products installation, it's mainly used to operated butterfly valve, ball valve, damper and other quarter turn valve, the max torque can reach 100,000Nm, water tight class is IP65, working temperature from -20℃ to 80℃.

ZJYZ top mount worm gearbox is used for butterfly valve, plug valve and ball valve, with this gearbox, user can vertically install hand wheel or actuators, gearbox max torque 400,000Nm, ratio from 102:1 to 13150:1, can customize according requirement.

Multi-turn Gearbox BA is combined with Multi-turn actuators for multi-turn applications where screwed or keyed stems are used to operate the valve. Combinations between Multi-turn Gearbox BA and Multi-turn actuator AVA are available up to 7500Nm torque and 850 kN thrust output. With cast iron housing, BA range ratio is from 3:1 to 18:1

The dual input gearbox can be used for gate valve, globe valve and penstock, water tight IP65, ratio from 2.6:1 to 7:1, max torque can reach 6800Nm. One actuator can operate two gearboxs in the same time, most of time, it's installed to open/close big penstock, we can also customize according client's requirement for specific application.