Ampco AL Series 3A Sanitary Rotary Lobe Pumps

Ampco's AL Series – formerly the ZL Series – rotary lobe pumps are a perfect choice for sanitary and non-sanitary applications involving viscous fluids.

Ease of maintenance, CIP performance, uptime reliability, and economical pricing are key characteristics of the AL Series rotary lobe positive displacement pumps, making this series a favorite of maintenance departments and plant managers alike. And, like every PD pump Ampco manufactures, the AL Series is supplied with a 304 stainless steel gear case – making these pumps popular with inspectors as well.

The AL Series' unique front-loading seal design provides faster maintenance, easier cleaning, and reduced downtime versus competitors' PD rotary pumps. Both rotors and product seals may be accessed by simply removing the front cover while the pump's process connections remain in place.

An optional, low-cost O-ring or PTFE lip seal provides for additional flexibility in unique applications. All available seal options fit into the same rotor case and may be easily field-replaced, even after the pump has been installed. Optional thermal jackets are also available for the pump cover and casing for applications where the pump needs to be heated or cooled. And, hardened materials of construction for the pumps' wetted components are available in order to accomodate abrasive fluid media.

Bi-wing type rotors and tri-clamp process connections are standard: optional single-wing, tri-lobe and multi-lobe rotors are available, as well as NPT, BSPP, DIN, and ANSI flange-type connections. The standard finish for the 316 Stainless Steel pump components is 32 Ra. An optional 16 Ra surface finish is available.

A specially-designed version of the AL pump is also available for road-tanker applications.

AL Series — Standard and Optional Features
Standard Design Features	Optional Design Features
304 Stainless steel gear case
Single Mechanical seal (silcar vs silcar)	Variety of seal materials Double Mechanical seal O-Ring seal Lip seal Mechanical seal with seal flush Double O-Ring seal
316L Stainless steel pump construction	Alloy 88 or Nitronic 60 rotors available with non-galling appeal
Tri-clamp	NPT, DIN, ANSI flange and other connections available
Bi-wing rotors	Single, tri-, and multi-lobe rotors Heating and cooling jackets Relief cover
32RA (0.8µm) finish	16RA (0.4µm) finish

The AL Series is well suited to a variety of applications, including food, dairy, beverage, and pharmaceutical applications. These pumps accomodate viscosities ranging from 1 to 1,000,000 centipoise. Self-priming capabilities up to 12 feet and flow rates up to 230 GPM make this a versatile, yet economical, pump for a variety of processing applications.

AL Series — Models
Model	Displacement	Standard Connection Size	Maximum Differential Pressure	Maximum Speed
AL05-002-20	0.53 gal / 100 revs 0.02 l / rev	1 in 25 mm	290 psi (20 bar)	1000 RPM
AL10-005-20	1.32 gal / 100 revs 0.05 l / rev	1 in 25 mm	290 psi 20 bar	1000 RPM
AL15-012-12	3.17 gal / 100 revs 0.12 l / rev	1.5 in 40 mm	175 psi 12 bar	800 RPM
AL20-021-08	5.55 gal / 100 revs 0.21 l / rev	2 in 50 mm	115 psi 8 bar	800 RPM
AL22-040-12	10.56 gal / 100 revs 0.40 l / rev	2 in 50 mm	175 psi 12 bar	700 RPM
AL25-062-08	16.37 gal / 100 revs 0.62 l / rev	2.5 in 65 mm	115 psi 8 bar	700 RPM
AL33-120-12	26.90 gal / 100 revs 1.02 l / rev	3 in 80 mm	175 psi 12 bar	600 RPM
AL34-144-08	37.98 gal / 100 revs 1.44 l / rev	4 in 100 mm	115 psi 8 bar	600 RPM