856
Discontinued
MasterSeries In-Line Design Double Check Detector Assembly Backflow Preventers
MasterSeries 856 In-Line Design Double Check Detector Assemblies prevent the backflow of pollutants that are objectionable but not toxic, from entering into the potable water supply. They are used primarily on fire sprinkler and standpipe systems requiring detection of unauthorized water use. They feature a ductile iron body. Maximum Working Pressure: 175psi (12.1 bar).
Literature
Select a Model
Select options below to identify the UPC, Order Code, and Repair Kit for a specific 856
No results found
| Model | Product Used On | Kit Contents |
|---|---|---|
|
FRK 850/856/860 D 2 1/2-3
Disc Kit |
</br> |
Seat Disc Assembly, Cover O-ring, Nut, Washer, Lube</br> |
|
FRK 850/856/860/870V/876V/880V-S 2 1/2-3
Seat Ring/Arm Kit |
</br> |
Seat Ring and Arm Assembly, Seat Gasket, Cover O-ring, 4 Nuts</br> |
|
FRK 850/856/870V/880V-BFBC
Bulkhead Fitting Kit |
</br> |
Bulk Head Fitting, Gasket, Nut</br> |
|
FRK 850/856-RT
Complete Rubber Parts Kit |
</br> |
2 Seat Discs, 2 Seat Gaskets, 2 Cover O-rings, 2 Cover Bushings, Cover Plate Gasket and O-ring</br> |
|
FRK 856/876V SM 2 1/2-3
Single Check Kit |
</br> |
Spring Assembly, Load Pin, 2 Retainer Clips, Cover O-ring</br> |
|
FRK 850/856/870/876-RT 4
Complete Rubber Parts Kit |
</br> |
2 Seat Discs, 2 Seat Gaskets, 2 Cover O-rings, 2 Cover Bushings, Cover Plate Gasket and O-ring, 4 Bulk Head Gaskets</br> |
|
FRK 850/856/870V/876V-D 4
Disc Kit |
</br> |
Seat Disc Assembly, Cover O-ring, Nut, Washer, Lube</br> |
|
FRK 856/860/870V/876V-S 4
Seat Ring/Arm Kit |
</br> |
Seat Ring and Arm Assembly, Seat Gasket, Cover O-ring, 4 Nuts</br> |
|
FRK 856/876V SM 4
Single Check Kit |
</br> |
Spring Assembly, Load Pin, 2 Retainer Clips, Cover O-ring</br> |
Approval/Certification Information
For product-specific approval information, please refer to the product’s specification sheet (see literature section above) or ask a Watts representative. Some certification agencies allow you to search by product name and brand.