The JHM series manual override gear box is widely used in 90° rotation pneumatic ball valves, butterfly valves, plug valves and other devices which be converted into manual operation devices when the system is installed, adjusted, or Loss of air and electrical.
Manual override gear box adopts integrated compact design: small size, lightweight, reasonable structure design, compact mechanism, large output torque, labor-saving and light-weight. Comply with ISO5211 connection standard, no need for brackets for direct installation. A safety valve can be installed, which is convenient for automatic and manual conversion.
2. Product Parameter (Specification)
Model：JHM40 - JHM410
Output torque：150 Nm - 15000 Nm
Structure：Partial rotating clutch handwheel structure
Application：Ball Valve, Butterfly Valve, Plug Valve
Shell material: The shell is available in nodular cast iron, WCB, stainless steel.
Flange standard：ISO 5211
stroke：0-90°(+/-5°) mechanical position limitation
Temperature standard：Standard -20℃~80℃
Low temperature -40℃~80℃
High temperature -20℃~120℃
Ingress protection grade：IP67 seal, appliable to the standard environment，
special enviromment can customized to IP68
Safety valve： It can be installed with total gas safe control function , which can cut off air source and exhaust automatically
surface coating：Special coating （for option）suitable in extreme working environment and marine environment.
Manual override gear box have the below characteristics:
●Completely-sealed box,the intemal is filled with grease to make longer life-cycle of worm gear box.
●Stroke:0-90° mechnical limit.
●Steel-protected input shaft (stainless steel is for your option)
●Shell material: The shell is available in nodular cast iron, WCB, stainless steel.
●Convenient conversion, lift the limit pin, rotating eccentric device to 100°, limit pin limit automatically to pneumatic operation; On the contrary, to manual operation.
●It can be installed with total gas safe control function, which cut off air source and exhaust automatically.
Juhang has advanced processing equipment, high-precision CNC machines, four-axis machining center and advanced technology, which can guarantee the high quality of precision products.The company also has laboratories for high-precision testing instruments.Sophisticated technology and strict quality management system, furthermore gathering professional technical elites and world-leading technology team, taking advantages of new technology, new processing and new materials to ensure the stability and reliability of our products.
Juhang has a strict inspection system, the most advanced inspection equipment and strict scientific management, so that each product from Juhang can meet various customer’s selection and requirements.
Q: Can you provide more detailed information about manual override gear box?
A: Yes, of course. You can send your questions to us via e-mail. We will send you the information you need.
Q:What about the MOQ for the clutch type manual override gear box?
A:For standard type MOQ is 1pcs,if you need customized products please contact us,thank you!
Q: Are you a manufacturer or a trading company?
A: We are manufacturers who have specialized in pneumatic actuators and gear operators for more than 20 years, in Taizhou, Zhejiang province, China.
Q: Is OEM acceptable?