WATTS 007M1 3/4-1" RUBBER REPAIR KIT

3/4-1 Backflow Preventer Repair Kit, 007M1 or Ames 2000B
(Same as 7016351)
This is an original manufacturer repair product used within various divisions of the Watts Water Technology Company (Ames, Febco, Watts)

Model Overview

This is a double check assembly. Production began in 1989. All versions in the 1/2"-2" size have bronze bodies with in-line modular check assemblies that are removed from a single cover on the top. In 2010 the LF model was introduced which utilizes a lead free bronze. Check modules are held in the body by a retainer. Check seats are replaceable. All springs are contained when the cover is removed. Spring tension had to be released for a proper repair. There have been several modifications over the years but all versions utilize a similar construction. Be sure which version you have because repair kits are different. The original design was the 007 model produced from 1989-1991. From 1991-1993 the 007M1 model was produced. The difference being in 3/4"-1" the disc holders on the newer M1 style are now plastic instead of bronze and in all sizes a change in the check seat dimensions. The check cover is bolted on in the 007 and the 007M1 except the 3/4"-1" 007 which had a screw on cover. The 007M2 design began in 1993. The major change in the 007M2 was the downsizing of the body which produced a corresponding downsizing change in the internal parts. In 1993 the 1/2" 007 began production. In 1998 the 3/4" 007M3 was introduced. The U007 series was developed in sizes 3/4"-2" which incorporates a union end into the body. The U007A series utilizes a 90 degree elbow for an up and down piping orientation. The 007PC series is a polymer coated bronze assembly. The SS007 series is available in sizes 1/2"-1". The SS007 is a stainless steel body assembly. In the 2 1/2"-6" the body is an epoxy coated cast iron design. The checks are an in-line design with a single bolted cover on the top. All springs are contained when the cover is removed. Spring tension has to be released for a proper repair. Check seats are replaceable. The 2 1/2"-3" check modules are held in the body with a retainer while the 4"-6" check modules are held in by a wire clip. The 4"-6" were discontinued in 1992. In 2010 a LF model was introduced in sizes 2 1/2"-3" which replaced the leaded bronze parts with plastic and stainless steel to make it a lead free assembly.