Gantry Crane can be a Single Girder Gantry Crane, Double Girder Gantry Crane, Rtg Crane or project gantry cranes with capacity 1t - 900t. Gantry cranes are usually employed to handle project materials, bulk material, containers, etc at outdoor working site, container yard, shipbuilding yard, bulking material site, road construction site, etc.
Features of Gantry Crane:
1. Box type girder, weld structure, large working space, and convenient installation and maintenance;
3. Components is of standardization, seriation and generalization;
4. Power supply can be from cable reel (left and right) and conductor bar( left and right);
5. Broad view of cab, equipped the internal linkage control console, flexible and comfortable operation, install of fan, heater, cooler, air-conditions and intercom according to the customers' requirements;
6. Customized lift height, span, power supply, operation (pendant, cabin) and gantry crane structure (girder, supporting legs, cantilever).
Main Data of Gantry Crane:
Capacity: 1t - 900t or custom
Lift Height: 6m - 40m or custom
Span: 6m - 70m or custom
Work Duty: A4, A5, A6,A7or custom
Weihua provide professional gantry crane solutions, customized cranes, Crane Components, installation, after sale service. Weihua products export to 110 countries such as Russia, Thailand, Malaysia, Egypt, Saudi Arabia, Parkistan, the Philippines, Mexico, etc. Our success comes from customers' success. Welcome to visit Weihua.
Gantry Crane Goliath Crane,Gantry Crane,Rubber Tyred Gantry Crane,Light Gantry Crane Henan Weihua Heavy Machinery Co., Ltd. , https://www.hoistcrane.nl
Ball valve evolution of the development and working principle
Ball valve is evolved from the plug valve. It has the same 90 degree rotation action, except that the plug body is a sphere with a circular through hole or passage through its axis. The ratio of the sphere to the channel should be such that when the sphere is rotated 90 degrees, the sphere should be fully spherical at the inlet and outlet to cut off the flow. Ball valve only need to rotate 90 degrees of operation and a small turning moment can be closed tight. The completely equal body cavity provides a medium-sized, straight-through runner with low resistance. Ball valves are generally considered to be the most suitable for direct opening and closing, but recent developments have designed the ball valve to be throttling and controlling flow. The main features of the ball valve is its compact structure, easy operation and maintenance, suitable for general working media such as water, solvents, acids and natural gas, but also for media with bad working conditions such as oxygen, hydrogen peroxide, methane and ethylene. Ball valve body can be a whole, it can be combined.