Grundfos DMX 765-3 Mechanical Dosing Pump 765 L/h 3 Bar

KEY FEATURES Approx. 765 L/h nominal dosing capacity at 50 Hz 3 bar maximum operating pressure Robust positive displacement diaphragm dosing pump Mechanically coupled diaphragm drive PVDF dosing head Long-life PTFE-coated diaphragm PTFE/composite valve balls PVDF valve seats PTFE/composite valve gaskets Single ball valve design Handles liquids up to 10 mPa·s viscosity Manual stroke-length adjustment with 10:1 adjustment ratio Robust aluminium pump housing Standard inlet and outlet non-return valves 40 mm welding-type inlet and outlet connections Liquid temperature range from -10 to 60 °C 3 × 230/400 V, 50 Hz three-phase motor 0.4 kW power input IP65 enclosure rating CE, EAC and CNROHSEX approvals The Grundfos DMX 765-3 is a versatile positive displacement diaphragm dosing pump designed for reliable high-capacity chemical dosing in demanding industrial and process applications. Its robust aluminium construction, mechanically coupled diaphragm drive and straightforward capacity adjustment provide dependable dosing performance. The diaphragm is mechanically coupled through a precise gear-eccenter-tappet system to a high-efficiency AC motor. Dosing capacity can be adjusted by varying the stroke length using the stroke adjustment knob, providing an adjustment ratio of 1:10. The liquid end incorporates single ball valves, while the robust industrial construction is designed for reliable operation in demanding process environments. This configuration features a PVDF dosing head, long-life PTFE-coated diaphragm, PTFE/composite valve balls, PVDF valve seats and PTFE/composite valve gaskets. With a nominal dosing capacity of 765 L/h, maximum operating pressure of 3 bar and compatibility with liquids up to 10 mPa·s viscosity, the pump provides dependable performance for compatible industrial and chemical dosing applications. ADDITIONAL FEATURES Long-life PTFE-coated diaphragm Mechanically coupled diaphragm design Easy-to-install and operate design Robust aluminium enclosure Optimum capacity and stroke-frequency graduation Dosing flow variation ±1.5% (FS) Linearity ±4% (FS) Single ball valve design Standard inlet non-return valve Standard outlet non-return valve Welding-type inlet and outlet connections Inlet connection size: 40 mm Outlet connection size: 40 mm Maximum permissible inlet pressure of 0 bar Liquid temperature range from -10 to 60 °C Standard control variant Not prepared for VFD operation IP65 motor enclosure APPLICATIONS Process engineering, water treatment, wastewater treatment, industrial chemical dosing, chemical treatment, disinfection, pH adjustment and other compatible applications requiring reliable high-capacity chemical metering at pressures up to 3 bar. PRODUCT PACKAGE INCLUDES Grundfos DMX 765-3 Mechanical Dosing Pump SPECIFICATIONS Specification Details Product Name Grundfos DMX 765-3 Product Number 99592076 Product SKU GRU-99592076 Model / Configuration DMX 765-3 B-PV/T/T-X-E1B5B5XEMAG EAN Number 5713831567363 Pump Type Positive displacement diaphragm dosing pump Diaphragm Drive Mechanically coupled Nominal Flow Rate 765 L/h at 50 Hz (approx. 202.09 US GPH) Maximum Operating Pressure 3 bar (approx. 43.51 psi) Number of Dosing Heads 1 Maximum Viscosity 10 mPa·s Pump Housing Aluminium Dosing Head Material PVDF Diaphragm PTFE-coated Valve Ball Material PTFE / Composite Valve Seat Material PVDF Valve Gasket Material PTFE / Composite Valve Configuration Single ball valves Inlet Non-Return Valve Standard Outlet Non-Return Valve Standard Inlet Connection Welding Outlet Connection Welding Inlet Connection Size 40 mm Outlet Connection Size 40 mm Maximum Permissible Inlet Pressure 0 bar Liquid Temperature Range -10 to 60 °C Power Input (P1) 0.4 kW (approx. 0.536 HP) Rated Voltage 3 × 230/400 V Mains Frequency 50 Hz Maximum Frequency 50 Hz Enclosure Class IP65 Control Variant Standard Frequency Converter Not prepared for VFD Cable Included No Power Plug No plug Diaphragm Leakage Detection No Net Weight 22 kg (approx. 48.5 lb) Gross Weight 33.3 kg (approx. 73.4 lb) Shipping Volume 0.156 m³ Approvals CE, EAC, CNROHSEX ADDITIONAL RESOURCES PRODUCT BROCHURE Additional information about Grundfos DMH Mechanical Dosing Pumps are outlined in the DMH product brochure. DOWNLOAD x PRODUCT INFORMATION SHEET (PIS) Detailed information about the product, is provided in the product information sheet below. DOWNLOAD