Product Positioning
This buffer tank and pump skid is used for receiving and automatic transfer of sanitary liquids upstream of a processing line. It solves a core problem: liquid needs to be held temporarily and pumped automatically based on level, while maintaining sanitary standards and mobility. The unit integrates tank, pump, level control, CIP, and mobile cart to reduce on-site installation work.
Design and Construction
The tank is cylindrical with a conical bottom, working volume 70L, full volume approximately 90L. All product-contact parts are SS316L stainless steel with an internal finish of Ra 0.8μm or better. The tank is mounted on an SS304 stainless steel mobile cart with four wheels, at least two with brakes, for easy movement and locking in the facility.
The tank top has a hinged opening door. The 1.5-inch Tri-Clamp side inlet has a centerline approximately 800mm above floor level and is angled inward and downward to direct liquid gently along the tank wall, reducing splashing and foam. A 1.5-inch sanitary tubular sight glass with approximately 150mm visible length (no lamp) is installed before the inlet for visual monitoring of liquid entry.
Level Control
The tank is equipped with two sanitary level switches. When the high level switch is triggered, the centrifugal pump starts automatically. When the low level switch is triggered, the pump stops automatically. This logic enables automatic transfer and prevents dry running. The VFD control supports automatic and manual mode switching.
Pump Set and Piping
The central bottom outlet is a 1.5-inch sanitary connection connected to a removable reinforced food-grade suction hose. The pump is an SS316L sanitary centrifugal pump with a 0.75kW motor, duty approximately 500 L/h at 15m head. The pump discharge is 1.5-inch Tri-Clamp. A 2-inch CIP spray ball and 1.5-inch sanitary vent are installed in the tank. The control box, wiring, and fittings are complete for automatic operation.
Technical Specifications
| Parameter | Specification |
|---|---|
| Working Volume | 70 L |
| Full Volume | Approx. 90 L (100L class) |
| Wetted Material | SS316L |
| Internal Finish | Ra 0.8 μm or better |
| Tank Type | Cylindrical with conical bottom |
| Cart | SS304, four wheels, at least two with brakes |
| Side Inlet | 1.5-inch Tri-Clamp (DN32), centerline approx. 800 mm above floor, angled inward and downward |
| Sight Glass | 1.5-inch sanitary tubular, approx. 150 mm visible length, no lamp |
| Level Switches | 2 sanitary level switches: high level starts pump, low level stops pump |
| Bottom Outlet | Central 1.5-inch sanitary outlet |
| Suction Hose | Removable reinforced food-grade hose |
| Pump | SS316L sanitary centrifugal pump, 0.75 kW, approx. 500 L/h at 15 m head |
| Pump Control | VFD speed control, automatic/manual modes |
| Pump Discharge | 1.5-inch Tri-Clamp |
| CIP | 2-inch CIP spray ball |
| Vent | 1.5-inch sanitary vent |
| Control | Complete control box, wiring and fittings for automatic operation |
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