Sanitary Rotary Lobe Pump

Sanitary Pumps for Hygienic & Industry Processes, Stainless Steel Pumps

As a positive displacement pump, sanitary rotary lobe pumps feature a low rotation speed and high-temperature resistance. The stable continuous pumping maintains the physical properties of materials, making them especially suitable for highly viscous, corrosion resistant and high temperature materials. The maximum viscosity reaches 1,000,000CP.

Rotary lobe pumps also perform well in conveying low viscosity materials. When needed to pump such materials, the drive system turns at higher speed to ensure the stable output flow.

Taking workplaces into consideration, we provide an added heat jacket to guarantee the constant material temperature and avoid freezing under low temperature conditions.

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Working Principle The rotary pump uses two rotors with synchronously reversing rotation to create the suction (vacuum) in the inlet for conveying materials. Two rotors divide the chamber into several parts and rotate in order (a→b→c→d). To a, only I part is filled with materials; To b, B part closes off partial materials; To c, A part also closes off partial materials; To d, A, B and II part build the connection for conveying materials. After continuous circulations, materials are constantly conveyed to the outlet.
Types of Rotary Lobes Tri-lobe

It is widely used for conveying viscous materials.

Butterfly Lobe

It is commonly used for pumping viscous materials containing solid particles, some of which may be broken along the way.

Single Lobe

It conveys solid materials containing large particles. The specially shaped design avoids particle damage.

Multi-lobe

The multi-lobe pump increases the pumping material stability, though it easily breaks particles along the way.

Specifications:

Shown here are a few sanitary rotary lobe pumps available for customers to choose from.

Model	Power (kw)	Displacement Per 100 RPM (L)	Speed Control Range (r/min)	Flow (L/H)	Pipe Diameter of Inlet and Outlet (mm)
ZB3A-3	0.55	3	200-500	300-800	25/DN20
ZB3A-6	0.75	6	200-500	650-1600	25/DN20
ZB3A-8	1.5	8	200-500	850-2160	38/DN40
ZB3A-12	2.2	12	200-500	1300-3200	38/DN40
ZB3A-20	3	20	200-500	2100-5400	51/DN50
ZB3A-30	4	30	200-500	3200-6400	51/DN50
ZB3A-36	4	36	200-400	3800-7600	63/DN65
ZB3A-52	5.5	52	200-400	5600-11000	76/DN80
ZB3A-66	7.5	70	200-400	7100-14000	63/DN65
ZB3A-78	7.5	78	200-400	9000-18000	76/DN80
ZB3A-100	11	100	200-400	11000-21600	89/DN80
ZB3A-135	15	135	200-400	15000-30000	89/DN80
ZB3A-160	18.5	160	200-400	17000-34000	89/DN80
ZB3A-200	22	200	200-400	21600-43000	89/DN80
ZB3A-300	30	300	200-400	31600-63000	102/DN100