Watts® 12 9D-M3

Watts® Check Valve, Dual, Series: 9D, 1/2 Inch Nominal Size, FNPT, 175 psi, Brass Body, Mounting Position: Vertically/Horizontally, 33 - 250 deg F, 4-15/16 Inch L x 2-9/16 Inch H

Series 9D Dual check valves with Intermediate Atmospheric Vent prevent the reverse flow of hot or cold polluted water from entering into the potable water supply. it consists of a brass body with stainless steel internal parts, integral strainer, and two durable, tight-sealing, rubber check valves. Series 9D is designed for continuous pressure, non-health hazard applications in smaller supply lines, such as laboratory equipment, processing tanks, sterilizers, dairy equipment, and specifically for boiler feed lines.

• True line-sized construction allows the check modules to open further allowing dirt and debris to pass more freely reducing check fouling
• Stainless steel internal parts
• Maximum flow at low pressure drop
• Furnished with union connections to facilitate removal and replacement for maintenance
• Compact for economy combined with performance
• Design simplicity for easy maintenance

Standard/Approvals: ASSE 1012, CSA B64

• Installation Sheet https://4500cpe.stage.cimm2.com//ASSETS/DOCUMENTS/ITEMS/EN/Watts_34_9D_M2_Installation_Sheet.pdf
• Specification Sheet https://4500cpe.stage.cimm2.com//ASSETS/DOCUMENTS/ITEMS/EN/Watts_34_9D_M2_Specification_Sheet.pdf