Specifications, Submittals, & Drawings For Backflow Covers

Find and download the written specifications, submittals, and drawings for any of our standard enclosures. These materials make it easy to add an enclosure to your design. We also have a video of two men putting together one of our enclosures so you can see how it works. We have more than 50 models in a wide variety of sizes to house any backflow preventer as well as other types of valves and pumps.

If you're looking for a backflow preventer enclosure but aren't sure which size you need, please visit our sizing guide. There you can put in information about your backflow device and it will tell you the best enclosure for the job.

If you need to protect a different type of valve or pump system, you can look at our standard enclosures page. The information can be sorted by width, length and height of the enclosure.

Model Image Specifications Submittals Drawings
75SN-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_75SN_100SN_SNT_200SN_300SN_400SN6.png Specification Submittal Drawings
100S-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_100S_200S.png Specification Submittal Drawings
100SN-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_75SN_100SN_SNT_200SN_300SN_400SN.png Specification Submittal Drawings
100SNT-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_75SN_100SN_SNT_200SN_300SN_400SN1.png Specification Submittal Drawings
200D-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_200D_DS2.png Specification Submittal Drawings
200S-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_100S_200S1.png Specification Submittal Drawings
200SN-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_75SN_100SN_SNT_200SN_300SN_400SN4.png Specification Submittal Drawings
300-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_200D_300_S_T_D_TD_TS_400_S_T_TS_600_S_T_TS_800_T_1000_T2.png Specification Submittal Drawings
300D-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_200D_300_S_T_D_TD_TS_400_S_T_TS_600_S_T_TS_800_T_1000_T3.png Specification Submittal Drawings
300DS-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_200D_300_S_T_D_TD_TDS_TS_400_S_T_TS_600_S_T_TS_800_T_1000_T1.png Specification Submittal Drawings
300T-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_200D_300_S_T_D_TD_TS_400_S_T_TS_600_S_T_TS_800_T_1000_T4.png Specification Submittal Drawings
300TD-AL 1https://cdn2.hubspot.net/hubfs/1753316/Table%20Images/ENC_IMG_500PX_200D_300_S_T_D_TD_TS_400_S_T_TS_600_S_T_TS_800_T_1000_T5.png Specification Submittal Drawings
300TDS-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_200D_300_S_T_D_TD_TDS_TS_400_S_T_TS_600_S_T_TS_800_T_1000_T.png Specification Submittal Drawings
400-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_200D_300_S_T_D_TD_TS_400_S_T_TS_600_S_T_TS_800_T_1000_T6.png Specification Submittal Drawings
400D-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_900PX_400D_DS_TD_TDS_600D_TD.png Specification Submittal Drawings
400DS-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_400D_DS_TD_TDS_600D_TD1.png Specification Submittal Drawings
400LU880-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_400LU880_TLU880_600LU880_TLU880_800LU880_TLU880_TLU880M_1000LU880_TLU880_TLU880M2.png Specification Submittal Drawings
400SN-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_75SN_100SN_SNT_200SN_300SN_400SN5.png Specification Submittal Drawings
400T-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_200D_300_S_T_D_TD_TS_400_S_T_TS_600_S_T_TS_800_T_1000_T7.png Specification Submittal Drawings
400TD-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_400D_DS_TD_TDS_600D_TD2.png Specification Submittal Drawings
400TDS-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_400D_DS_TD_TDS_600D_TD3.png Specification Submittal Drawings
400TLU880-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_400LU880_TLU880_600LU880_TLU880_800LU880_TLU880_TLU880M_1000LU880_TLU880_TLU880M3.png Specification Submittal Drawings
600-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_200D_300_S_T_D_TD_TS_400_S_T_TS_600_S_T_TS_800_T_1000_T8.png Specification Submittal Drawings
600D-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_400D_DS_TD_TDS_600D_TD4.png Specification Submittal Drawings
600DS-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_600TDS_800D_DS_TD_TDS_1000D_TD_DS_TDS4.png Specification Submittal Drawings
600LU880-AL 1https://cdn2.hubspot.net/hubfs/1753316/Table%20Images/ENC_IMG_500PX_400LU880_TLU880_600LU880_TLU880_800LU880_TLU880_TLU880M_1000LU880_TLU880_TLU880M4.png Specification Submittal Drawings
600T-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_200D_300_S_T_D_TD_TS_400_S_T_TS_600_S_T_TS_800_T_1000_T9.png Specification Submittal Drawings
600TD-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_400D_DS_TD_TDS_600D_TD5.png Specification Submittal Drawings
600TDS-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_600TDS_800D_DS_TD_TDS_1000D_TD_DS_TDS5.png Specification Submittal Drawings
600TLU880-AL 1https://cdn2.hubspot.net/hubfs/1753316/Table%20Images/ENC_IMG_500PX_400LU880_TLU880_600LU880_TLU880_800LU880_TLU880_TLU880M_1000LU880_TLU880_TLU880M5.png Specification Submittal Drawings
600TS-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_200D_300_S_T_D_TD_TS_400_S_T_TS_600_S_T_TS_800_T_1000_T10.png Specification Submittal Drawings
800-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_200D_300_S_T_D_TD_TS_400_S_T_TS_600_S_T_TS_800_T_1000_T11.png Specification Submittal Drawings
800D-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_600TDS_800D_DS_TD_TDS_1000D_TD_DS_TDS6.png Specification Submittal Drawings
800DS-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_600TDS_800D_DS_TD_TDS_1000D_TD_DS_TDS7.png Specification Submittal Drawings
800LU880-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_400LU880_TLU880_600LU880_TLU880_800LU880_TLU880_TLU880M_1000LU880_TLU880_TLU880M6.png Specification Submittal Drawings
800T-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_200D_300_S_T_D_TD_TS_400_S_T_TS_600_S_T_TS_800_T_1000_T12.png Specification Submittal Drawings
800TD-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_600TDS_800D_DS_TD_TDS_1000D_TD_DS_TDS8.png Specification Submittal Drawings
800TDS-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_600TDS_800D_DS_TD_TDS_1000D_TD_DS_TDS9.png Specification Submittal Drawings
800TLU880-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_400LU880_TLU880_600LU880_TLU880_800LU880_TLU880_TLU880M_1000LU880_TLU880_TLU880M7.png Specification Submittal Drawings
800TLU880M-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_400LU880_TLU880_600LU880_TLU880_800LU880_TLU880_TLU880M_1000LU880_TLU880_TLU880M8.png Specification Submittal Drawings
1000-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_900PX_200D_300_S_T_D_TD_TS_400_S_T_TS_600_S_T_TS_800_T_1000_T1.png Specification Submittal Drawings
1000TS-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_900PX_1000S_TS6.png Specification Submittal Drawings
1000D-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_900PX_600TDS_800D_DS_TD_TDS_1000D_TD_DS_TDS1.png Specification Submittal Drawings
1000DS-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_600TDS_800D_DS_TD_TDS_1000D_TD_DS_TDS3.png Specification Submittal Drawings
1000LU880-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_400LU880_TLU880_600LU880_TLU880_800LU880_TLU880_TLU880M_1000LU880_TLU880_TLU880M.png Specification Submittal Drawings
1000S-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_900PX_1000S_TS4.png Specification Submittal Drawings
1000T-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_200D_300_S_T_D_TD_TS_400_S_T_TS_600_S_T_TS_800_T_1000_T.png Specification Submittal Drawings
1000TD-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_600TDS_800D_DS_TD_TDS_1000D_TD_DS_TDS.png Specification Submittal Drawings
1000TDS-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_600TDS_800D_DS_TD_TDS_1000D_TD_DS_TDS2.png Specification Submittal Drawings
1000TLU880-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_900PX_400LU880_TLU880_600LU880_TLU880_800LU880_TLU880_TLU880M_1000LU880_TLU880_TLU880M1.png Specification Submittal Drawings
1000TLU880M-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_400LU880_TLU880_600LU880_TLU880_800LU880_TLU880_TLU880M_1000LU880_TLU880_TLU880M1.png Specification Submittal Drawings
300SN-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_900PX_75SN_100SN_SNT_200SN_300SN_400SN6.png Specification Submittal Drawings
200DS-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_500PX_200D_DS1.png Specification Submittal Drawings
600TM-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_100PX_200D_300_S_T_D_TD_TDS_TS_400_S_T_TS_600_S_T_TS_800_T_1000_T1.png Specification Submittal Drawings
300SNT-AL 1https://cdn2.hubspot.net/hubfs/1753316/Product%20Images/ENC_IMG_900PX_75SN_100SN_SNT_200SN_300SN_400SN6.png Specification Submittal Drawings

Rapidly Evolving Regulations

The following municipalities have recently updated their standard details and local codes to conform with recommended best practices.

Lynchburg, VA

Lynchburg has required RPZs on all non-residential connections for almost a decade. This includes domestic, irrigation, and fire lines.

Fort Worth, TX

In 2010, Fort Worth added a clause to their code for all new commercial properties stating they needed an RPZ device to provide the highest protection.

The following list of cities in the area then followed Fort Worth's lead and added it to their own code.

Addison, Alpine, Arlington, Bedford, Boerne, Buda, Carrollton, Cedar Hill, Cleburne, College Station, Colleyville, Crowley, Denison, Denton, Duncanville, Farmington, Farris, Franklin, Gainesville, Grand Prairie, Haltom, Highland Village, Midlothian, Roanoke, Round Rock, Saginaw, Texarkana, Waco, Waskom

Elgin, IL

Beginning in October 2012, Elgin added requirements to the city code to put RPZs on all domestic lines in commercial and industrial properties.

Naperville, IL

Naperville had already required RPZs on commercial irrigation lines for years, but in 2013 they now require RPZs on domestic and fire lines for commercial buildings.

Delaware, OH

In June 2013, Delaware added a requirement for all industrial, commercia, and institutional water services to have an RPZ device outside and above ground in a protective enclosure.

 

Download Trends in Backflow Preventer Valve Specification and Location