The most common available designs are the Weir-type diaphragm valve. The elevated lip/saddle configuration for limited flow control is ideally suitable and is safely leaked thanks to the cover over the diaphragm and actuator. This design is suitable for harmful or corrosive gas and liquids, as this cover keeps every breakdown of the membrane. As an integrated element of the valve body, a Weir is given. The Weir serves as the valve seat to compress the diaphragm to avoid the surge. The inclined body often naturally drains this valve, although it may occur in both directions and with certain uses, that might not be desirable. Generally, this type of diaphragm valve is manufactured in large sizes. The elevated Weir decreases the amount of movement of the diaphragm from the completely open position to the completely closed position, thus decreasing the amount of strain and stress in the diaphragm. For smooth, homogenous fluids, the Weir-type valve is often used, as viscous slurries and sediments can build up on either side of the saddle. In processes such as food/chemical, gas processing, corrosive, and water applications, they are most commonly found.