Figures 200-D, 200-DBF, 200-DPI

GENERAL

1. Manufacturer shall have a minimum of five (5) years' experience in the manufacture of rubber flapper check valves.
2. When requested, manufacturer shall provide detailed product data and descriptive literature including dimensions, weight, headloss, pressure rating, materials of construction and cross-sectional drawings clearly illustrating the individual components.

MATERIALS

1. Valve bodies and covers shall be made from ductile iron per ASTM AS36 Grade 65-45-12
2. The flexible disc shall be made from Buna-N (NBR) rubber.
3. The valve body and cover shall be factory lined and coated with 2-part epoxy, NSF-61 certified for contact with drinking water.