What is the difference between Watts 007 and 009?
The 007 is a Double Check Valve (DCV), the 009 is a Reduced Pressure Zone assembly (RPZ). The 007 is a double check valve and the 009 is a reduced pressure. The reduced pressure is for more of a high hazard situation. If there is backflow on the 009 it will dump out of the bottom of the unit to a drain.
Can a Watts backflow preventer be installed vertically?
There are backflow preventers that can be installed horizontally, vertically (up or down) and other orientations that can make an installation easier. The key point to realize however is that they can only be installed in the orientation that the approval agency has determined they will work in.
Can a Watts 007 be installed vertically?
For repair kits and parts, refer to our Backflow Prevention Products Repair Kits & Service Parts price list PL-RP-BPD found on www.watts.com. Series 007 may be installed in either a vertical or horizontal posi- tion. Pipe lines should be thoroughly flushed to remove for- eign material before installing the unit.
Can a double check valve be installed upside down?
For safety, the ground well should be covered. The valve stem of the valve on the horizontal pipeline should be vertical upward rather than downward installed. Stem downward installation has the disadvantages of inconvenient operation, inconvenient maintenance, but also easy to corrode the valve accident.
How much does it cost to have a backflow preventer installed?
Installing or replacing a backflow preventer costs $300 for the average homeowner. However, actual project costs fall somewhere between $135 and $1,000 based on the system sizes and styles you choose.
Can double check be installed vertically?
If installed in a vertical configuration, it must be a minimum of 6 inches from floor, and no higher than 5 feet to the centerline of the #2 shut-off valve. All assemblies must maintain a sufficient clearance from any wall, and 24 inches in front of assembly to ensure accessibility for maintenance and testing.
When is a backflow preventer required?
Newton – Backflow preventers are required and must be installed, repaired, or replaced by a certified technician. Testing by a certified technician is required once a year, and an overhaul is required every five years.
How does a backflow preventer work?
A backflow preventer works by using a one way valve, often called a check valve, to prevent water from backing up into the supply line. Basically, it only allows water to flow through the valve in one direction.
What is a backflow prevention device?
Air gap (AG the purest form of backflow prevention)