4624B Series Liquid-Specific Abrasive Liquids Internal Gear Pumps
The 4624B Series™ internal gear pumps utilize hard parts in key wear areas, combined with unique designs and operating practices to reduce abrasive wear for longest life.
These pumps are ideally suited for liquids with concentrations of small but hard particles, such as paints, inks and pigments; filled polyols and resins; and waste oils.
The 4624B Series™ pumps replaced the old style 4625 Series™, offering the advantage of a one-piece bearing housing for faster and easier end clearance adjustment, and adding the LS and QS sizes. The F and FH size 4624B Series™ pumps are identical to the old style F and FH size 4625 Series™ pumps.
Jacketing is available by ordering a 4224B model with abrasive fitting (tungsten carbide idler pin and bushing, abrasive liquid seal with flush line). Refer to Catalog Section 1402. All models are dimensionally interchangeable with the old 4625 Series™, except:
• The L, LQ & LL size 4624B Series™ models have a more robust 1.44” diameter shaft, while the old 4625 models used a 1.13” diameter shaft.
• The M4625 has been discontinued.
• The QS4624B provides equivalent performance, but is not dimensionally interchangeable.
Viking Pump 4624B Series Features & Benefits
• Ultra-hard tungsten carbide idler pin and tungsten carbide idler bushing minimize wear in this key area, since a constant supply of abrasive material is flowing through the pumping elements.
• Behind-the-rotor pinned-seat mechanical seal with hard silicon carbide vs. silicon carbide seal faces, featuring external flush line from pump discharge to remove solids build-up, ensuring longest possible seal life (note: no flush line on F & FH sizes).
• The grease-lubricated bracket bushing is not contacted by the pumped liquid, for long life. The pump is re-greasable, with a lip seal at the stuffing box to retain grease and a relief fitting to prevent over-greasing.
• The grease-filled bracket helps to prevent air and moisture from reaching the seal faces, which helps limit crystallization of some air or water-reactive liquids.
• Limiting pressure ratings helps extend pump life on abrasives, by increasing film thickness between rotating parts and reduces the loads or forces within the pump.
Specifications
Capacity: 0.75 to 182 GPM, 0.17 to 41 m³/h
Viscosity: 38 to 250,000 SSU, 3 to 55,000 cSt
Pressure: to 150 PSI, to 10 Bar
Temperature: -40 to +300 °F, -40 to + 150 °C
Porting: Right Angle (90°) Opposite (180°) NPT Flanged
Drives: P Purchased Gear Reducer Drive | D Direct-Mounted Drive | V Drive | V-Belt Drive
Mounting: Foot Mount
Sealing: Mechanical Seals
Typical Applications: Paints & Inks | Resins | Starch | Adhesives | Wax
