Various types of valves are required to maintain optimal function of the air and water pumps, and among these valves are foot valves. Foot valves are used to set up a centrifugal pump; They are known for their effectiveness and affordability.
Description
Foot valves are a type of check valve that is located in the wet well of the pump. Unlike other valves, a foot valve is created with a flow area greater than the pipe size to ensure that there is less head loss. Foot valves are made of PVC plastic or stainless steel, and are known to maintain the continuous presence of suction within the pump.
Function
Foot valves are used to maintain hydraulic pressure that maintains water flow according to given settings or settings. There are situations where pressure can actually explode the valve and cause a larger leak; therefore, it is important to use the proper type of pipe material that is capable of withstanding the force within the valve.
characteristics
Being an important part of a centrifugal pump, foot valves come with easily manageable features. Most are designed with self-sticking male and female cables to ensure easy installation; internal balls for fast sealing and reaction; and flexibility to accommodate various types of water pump uses, such as smooth running and volatile organic compound sampling and blowdown. Although they are inexpensive to use, when compared to other valves used to prepare a pump, foot valves are regularly made of a heavy duty alloy steel and bronze, as well as PVC (depending on type) so they can last longer. time submerged in water.
Types
There are three types of foot valves. The valves for micro flow systems are used in direct contact with the technological impulse in the installations of micro wells and multilevel wells. They are regularly made of stainless steel and with fluorothermic tubing (FEP) or high-density polyethylene (HDPE). The high flow system valve is used in wells 2 inches (5 cm) or larger, and can handle fairly high pumping rates and very deep wells. On the other hand, low-flow system valves are used on small diameter piezometers, which can lift up to 100 feet (30.5 m) of water.
Support
Foot valves regularly come with surge blocks. A surge block is a tool used to press down on the valve body to remove debris that can block smooth flow or water inside the pump during operation. It also aids in the expansion of the valve during use, allowing the presence of increased pressure without causing damage to the valve itself.
