What is the difference between Watts 007 and 009?

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.

What is the most effective backflow preventer?

Reduced Pressure Principle Backflow Assembly A reduced pressure principle (RP) backflow assembly, also known as a reduced pressure zone assembly, is one of the safest and most dependable backflow preventers on the market.

Can Watts 009 be installed vertically?

It can be installed vertically or horizontally (vent elbow required for vertical installation).

Can a Watts backflow preventer be installed vertically?

6. The 909 and LF909 Series backflow preventer is designed so that the critical level of the relief valve is positioned below the first check. This unique feature allows the valve to be installed either vertically or horizontally.

What is a reduced pressure zone backflow preventer?

A Reduced Pressure Zone (RPZ) lets you know that the valve is working properly. RPZ backflow preventers consist of two independent check valves. Backflow preventers work by letting water flow through them in one direction, but prevent water from flowing back through them in a reverse direction.

What is the difference between a backflow preventer and a Rpz?

What is the difference between RP and RPZ backflow preventer?

The main thing to take away from this is that both backflow prevention device types perform the same function, but only the RPZ is designed to protect the public water supply by disposing of any backwards-flowing water if any of the check valves or the relief valve fails.

Can a Watts Rpz be installed vertically?

Series 909/LF909 may be installed in a vertical or horizontal line and in an accessible location to facilitate testing and servicing.