When choosing a stormwater backflow valve, there are several important things to consider. Some models have an automatic float or blade style gate that lifts when waste rises and closes when waste drops. Others feature a reduced pressure zone or a double check valve. Considering the pros and cons of each type will help you determine which is best for your home or business.
If you’re looking to protect your home from sewer backups, you may want to install a Float with Blade Style Stormwater Backflow Valve. This design is based on a blade-style float that rises and falls when water pressure is high. This type of valve may be more complex and requires more maintenance than other options.
This type of valve has a high degree of effectiveness because it only allows liquid to flow in one direction. This is essential for preventing the backflow of sewage and other potentially hazardous liquids. Backwater valves are required by code, but should only be installed where absolutely necessary.
Sluice gate mechanism
A sluice gate mechanism is a mechanical device used to control the flow of stormwater. It has several important advantages. One of these is that it is reliable and durable. The sluice gate is made of structural weldable low-carbon steel, which has a ferritic-pearlitic structural pattern. It has a yield strength that is significantly higher than steel one.0040.
The sluice gate mechanism is designed to completely seal off the inlet and outflow of water from the inlet and discharge channel. This stormwater backflow valve makes it difficult to determine the service life of the device using only numerical methods. Moreover, the material properties and boundary conditions of the system make it difficult to model its performance.
Double check valves
Choosing the right double check valve is crucial in preventing stormwater backflow. A simple and basic device, double check valves are designed to shut off when the pressure downstream exceeds the pressure within the public water supply. This prevents water from flowing back into the household water system.
Double check valve assemblies consist of 2 independent positive seating check valves with installed tamper switches and test cocks. They are designed to withstand pressures up to 150 psi and must be compliant with ANSI/AWWA C510-92.
Reduced pressure zones
A reduced pressure zone (RPZ) stormwater backflow valve is a device that protects drinking water systems from contamination. They are usually found in commercial settings but are also needed in some homes. To ensure proper operation, these devices require regular testing and service. Reece offers a variety of testing kits, replacement rubbers, and valve bodies for RPZ valves.
There are two main types of reduced pressure zone assemblies – RDC and DC. RDCs are typically installed at the meter for residential homes, while DCs are typically installed at locations where the health hazards are minimal. RPZ assemblies contain a relief valve between two check valves. They are required for certain types of buildings, such as hospitals, schools, manufacturing facilities, and irrigation systems.
Manual-type stormwater backflow valves are a great option for homeowners. They are relatively inexpensive to install, and can help protect your home against flooding. They should be placed about 15 inches above the floor to prevent backflow into your home. When you install these backwater valves, you should make sure that they are plumbed separately to prevent them from crossing piping or inverting.
Manual-type stormwater backflow valves can be installed in the same manner as flapper-type valves. Both types of backwater valves are designed to offer temporary protection from sewage backflow surges. Manual-type valves can also be manually closed to provide full protection during emergencies.