1/2"

The 1/2" Watts 007 double check assembly began production in 1993 and is still currently being produced. The 007 is an inline check design with a single access cover. The body is of bronze construction. Fully testable. Early versions used gate valves, more recent models use full port ball valves.

The 1/2" Watts 719 Double Check Assembly began production in 2003 and is still currently in production. This is a two cover, bronze bodied device. Check covers unthread from the body. Checks are not self contained and covers have spring tension against them. Use caution when servicing. The check poppets are plastic and a replacable plastic seat threads into the body. In 2009, A lead free version was introduced, designated by a "LF" prefix. No special tools are required for servicing.

The 1/2" Watts 775 Double Check Assembly was produced from 1998-2003. The body was made of nickel plated copper. Single cover with modular check assemblies. Check modules thread into body. No special tools are required for servicing.

The 1/2" Watts 008 Spill Resistant Pressure Vacuum Breaker began production in 1994 and is still currently in production. The body is made of bronze and uses plastic internal parts. The check and air inlet are modularized single cartridge style. No special tools are required for service.

The 1/2" Watts Series 009 Reduced Pressure Zone Assemblies are Watts "contractor grade" RPZ device. They began production in 1992 and still are being manufactured. The 009 features a one cover design and is constructed of bronze and use check modules that slide into the body and are held in place with a retainer. The relief valve assembly slides down between the retainer and is directly under the cover. The check modules and relief valve assembly come apart for service. In 2013, a lead free version became available, designated by the prefix "LF". No special tools are required for servicing 009 Series devices.

The 1/2" Watts Series SS009 Reduced Pressure Zone Assemblies are a stainless steel RPZ device. They began production in 1992 and still are being manufactured. The SS009 features a one cover design and use check modules that slide into the body and are held in place with a retainer. The relief valve assembly slides down between the retainer and is directly under the cover. The check modules and relief valve assembly come apart for service. No special tools are required for servicing SS009 Series devices.

The 1/2" Watts 919 Series Reduced Pressure Zone Assemblies began production in 2003 and are still currently being produced. The 919 is a bronze bodied device with three covers. Check valves are poppet style and the relief valve is a stem type. Springs are not contained and covers will have tension, use caution when servicing. In 2010, the LF919 was introduced to comply with the new "Lead Free" laws. All repair parts were converted to lead free in 2013. Lead free repair parts will fit both regular 919 and lead free LF919 models. All 919 models have replaceable seats and require no special tools for repair.

The 1/2" Watts 995 Reduced Pressure Zone (RPZ) was produced from 1998-2009. The body was made of nickel plated copper. Modular check assemblies thread into body. The relief valve body is constructed of plastic and has a union fitting that threads onto the body. Uses an external sensing line. No special tools are required for servicing.

The 1/2" Watts 800 Series pressure vacuum breaker (PVB) is the first PVB produced by Watts. It began production in 1982 and was discontinued in 1991 when it was replaced by the 800M2. Bronze body construction with non replacable seats. No special tools are required for servicing.

The 1/2" Watts 800M2 Series pressure vacuum breaker (PVB) was produced from 1991-1992. The 800M2 was replaced with the 800M3. The 800M2 featured a bronze body construction with non replacable seats. No special tools are required for servicing.

The 1/2" Watts 800M3 Series pressure vacuum breaker (PVB) was produced from 1992-1994. The 800M3 was replaced with the 800M4. The 800M3 featured a bronze body construction with non replacable seats. No special tools are required for servicing.

The 1/2" Watts Series 800M4 is a pressure vacuum breaker (PVB) began production in 1994 and is still currently being produced. It features a bronze body with plastic internal parts. In 2010, A lead free version was introduced, which is tagged LF800M4. "Lead free" models use the same internal parts as the "leaded" versions. A "freeze resistant" model was introduced in 1995 and was tagged under the 800M4-FR. Some repair parts are different for the FR, so please be sure which model you have before ordering parts.

The 1/2" Watts 800M Series pressure vacuum breaker (PVB) began production in 1986 and is still currently produced. The 800M is a compact pressure vacuum braker with built in ball valves. The 800M features a bronze body construction. The check spring is contained when the bonnet is removed. No special tools are required for servicing.

The 1/2" Watts 800CM Series pressure vacuum breaker (PVB) began production in 1986 and is still currently produced. The 800CM is a compact pressure vacuum braker with built in ball valves. The 800CM features a chrome plated bronze body construction. The check spring is contained when the bonnet is removed. No special tools are required for servicing.