FLOMATIC CHECK VALVES
Same configuration as our popular series 80DI, the 80MDICL incorporates CertainTeed’s new patented groove lock type pipe connections called Certa-Lok Fusion epaxy coated inside and out including poppet assembly. This valve is corrosion resistant and Unleaded. High strength ductile iron body with stainless steel spring and NITRILE (Buna-N) seal.
Temp MAX: 180F (80C) Pressure Max:400 PSI.
Model 80DIX
An economical high strength valve assembly. Features a ductile iron body and double-guided ductile iron poppet, NITRILE (Buna-N) seal, stainless steel spring and fasteners. Requires a low flow well.
Model 80MDI
mODEL 80MDI is a high strength ductile iron check valve similar to 80DI but features a male threaded inlet and female threaded outlet. Ideal for submersible pumps.
Model 80DI TURBO
Model 80DI TURBO valves are patented high efficiency ductile iron check valves with female x female connection. Features a high strength ductile iron body and poppet, stainless steel spring screws and shaft with Buna-N O-Rings. Patented dual poppet design reduces headloss up to 60%.
Operation – FLOMATIC CHECK VALVES
The 80DI series ductile iron check valve is an industry proven heavy duty in-line poppet style valve designed to prevent flow reversal. When pumping from a well, water is allowed to flow through the valve and then closes automatically when the pump is shut off to prevent backflow.
General Applications
Flomatic’s ductile iron series 80DI valves are one of the most popular valves in the water well industry today. They are specifically designed for use with submersible pumps or other applications where it is necessary for the check valve to be installed in the well casing. The 80DI series valves will provide excellent service in any application where a conventional check valve is recomended and is vertically mounted.
Model 80DI
High strength ductile iron body with threaded female x female connection. Features a NITRILE (Buna-N) seal. Stainless steel spring and fasteners and a ductile iron poppet (1″ through 1-1/2″ sizes Acetal poppet)
Benefits – FLOMATIC CHECK VALVES
- Low Head-loss
- Minimizes Water Hammer
- Lead-In Thread for Easy Installation
- Prevents Pump Reversal
- BSP & BSPP Threading Optional
- 8 Round threads optional
Valve Body Strength
When a check valve is installed vertically in a riser pipe, the weight of the pipe, water column and pump below is hanging on the valve body. Indeeper setting, the tensile stress on a valve placed near the surface can be high. The table on the right indicates the recommended maximum weights that each valve size will support.
Recommended Valve Installation
Ductile Iron Valves must be installed according to Flomatic’s installation instructions to prevent damage to the valve and pump. For detailed installation of check valves see Bulletin. A check valve should never be installed more than 25 feet above the lowest expected pumping water level in the well.
