Cylinder head unit equipped with a pneumatic - manual conversion devices. Converting the handle clockwise to mention "Air" positioning hole location, the valve is pneumatically operated state; conversely, converting the handle counterclockwise to mention the "manual" is scheduled for hole positioning, valve can be manually operated. Change the direction opposite to the handle with a bevel gear. Manual operation valve, the valve, the hand wheel rotation and, like ordinary manual valve that is turned OFF clockwise, counterclockwise turned ON. With bevel gears in reverse. Valve Co., Ltd. Shandong Everbright production of such types of valves wide range of applications, reliable, no leakage, leakage phenomenon, frequent switching is not stuck, rusted, the majority of chemical plants, thermal power plants, steel mills, printing and dyeing, the best choice for food factory. Pneumatic valve packing and shipping on both sides of the valve should be located light blocking plate solid seal. Medium and small-caliber valve should be tied to rope, and transported to suitable container. Large diameter valves are also solid wood frame packaging to avoid collision damage during transport. Shandong Everbright Valve Co., Ltd. specializing in the production valve manufacturers, high temperature and high pressure valves, welcome new and old customers to order our products! If the pneumatic valve buried deeper, ground operating mechanism and display the distance from ≥1.5m, the pole should have added facilities, and fixed rate stability for the people to observe and operate from the ground. In other words, cast steel valves, pipe network in the valve opening and closing operation, should not go down operations. Shandong Everbright Valve Co., Ltd. specializing in the production valve manufacturers, welcomed the new and old customers to order our products! Valve manufacturers, valve, the valve is provided by Shandong Everbright Everbright Valve Co., Ltd., Shandong. Shandong Everbright Valve Co., Ltd. (www.sdgdfm.com) located in Weifang City, Shandong Province, Cravens District Bao Tong Street North Makers Industrial Park. Scraps and development in the wave of market economy, the current Everbright valve has a high profile in the ball, and enjoys a good reputation. Everbright valve made whole network business alliance certification, marking our service and management level has reached a new height. Everbright valve staff willing to work with all people of insight and common development, for a better future.