Sanitary Diaphragm Pump

• Supports CIP/SIP and can turn 360° to drain the pump
• High-quality finish of the pump housing with surface finish to Ra > 0.8 as standard or 0.5 on request
• Clean face, no-nut diaphragms reduce the risk of leakage and simplify cleaning
• Smooth surface of the diaphragm face eliminates the risk of bacterial growth
• Manifold clamps and housing screws are easily removed for disassembly and cleaning
• Lubrication-free air distribution system
• Maintenance-free ball check valve system
• Total visual inspection of the wetted parts

Flap Valves:

• Available on 3 pump sizes: T225, T425 & T825
• Provide solids passage from 50 – 100 mm, model dependent
• Provide dry suction lifts up to 4.5 m
• Flap valves are ideal when the product pumped is of high viscosity and contains large solids or solids that can be damaged by standard valve balls (e.g. fruits)

Mounted with clamps they provide easy maintenance and cleaning. Made in AISI 316 Stainless Steel, they are mounted in a special flap valve cup with clamps between housing and manifold. Pumps with flap valves differ from the standard pump by valve type, manifolds and pump housing.

NOTE: Flap Valves are not appropriate for pumping water-like products. If a liquid has low viscosity, the valve will open and close very fast with no shock absorption that is provided by viscous products. Also, dry running of the pump for longer periods will cause rapid valve wear and eventually pump stopping. Modify your existing pump to be fitted with flap valves with the following additional parts:

• T225 = Flap Valve Compete x 4 (P/N: 6-225-24H)

• T425 = Flap Valve Compete x 4 (P/N: 6-425-24H)

• T825 = Flap Valve Compete x 4 (P/N: 6-825-24H)

Ball Cup Valves:

This option is a great solution when there is a risk of damage to the valve seats from the product. If this happens, there is no need to replace the entire manifolds or housings, just the valve cup. As with the flap valve, it is made of AISI 316 Stainless Steel and is mounted between the housing and manifold with clamps. In the same way, the manifolds, pump housing and pump stand have to be changed in comparison to a standard Sanitary Pump. The following additional parts are required to optimise your pump to be fitted with ball cup valves:

• 4 x Ball Valve Cups
• 2 x Manifold for Ball Cup Valves
• 2 x Pump Housing – Ball Cup Valves
• 8 x 3-Clamp Seal
• 4 x 3-Clamps
• 4 x Valve Ball Stops
• 4 x O-Rings
• 1 x Pump Stand

Heating Jacket:

A Heating Jacket is a great option when the pumped product tends to solidify at lower temperatures, e.g. chocolate or paraffin. When the pump has finished operation and is left for some time without operation, the product can solidify inside. This is where the heating jacket comes in. Before the next pump starts up, heat water or steam into the heating system for a defined period of time to melt the product inside the pump. Only then can the pump be started again with no risk of damage.

NOTE: When using steam as the heating agent, the flow must be from top to bottom (due to steam condensation). In the case of hot water or other liquid, it is the other way around. Do NOT exceed 2 Bar pressure in the jacket.

Magnetic Ball Lifters:

Magnetic ball lifters are implemented in the Sanitary and Aseptic EHEDG series of Air Operated Diaphragm Pumps, enabling pump emptying without removing it from the installation when no other draining option is available. Rotating the pump is also no longer needed. The balls are lifted by simply attaching the magnets to the pumps manifold. Valve balls are available in AISI 420 magnetic Stainless Steel or PTFE with steel cores.