SRU Pumps | Alfa Laval
Alfa Laval’s SRU is the nucleus of the positive displacement rotary pump lineup. Designed for application flexibility, the SRU is the ideal pumping solution for a wide variety of industries including: food and beverage, dairy, chemical, pharmaceutical, agriculture, and bio-technology. Low on maintenance and high on reliability, quality performance and dependability are the hallmarks of this contamination-proof pump.
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Smooth pumping action from tri-lobe non-contact rotors (with optional bi-lobe variant)
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Full bore inlet and outlet ports designed to meet international hygiene standards
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High efficiency pumping and CIP functionality at temperatures as high as 200°C
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Multiple variants with a modular range of components to fit your specific application
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Rock solid cast iron gearbox construction provides easy unit access while maintaining structural component support
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Designated for use in potentially combustible and explosive environments based on ATEX criteria
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Certified by the EHEDG, the SRU range is also rated for 3-A sanitary work; material components up to FDA standard
Max Solid Size Capability
| Model No. | Tri-lobe Rotors
in (mm) |
Bi-lobe Rotors
in (mm) |
|---|---|---|
| SRU1/005
SRU1/008 SRU2/013 SRU2/018 SRU3/027 SRU3/038 SRU4/055 SRU4/079 SRU5/116 SRU5/168 SRU6/260 SRU6/353 |
0.24 (6)
0.24 (6) 0.24 (6) 0.35 (9) 0.35 (9) 0.43 (11) 0.43 (11) 0.59 (15) 0.59 (15) 0.71 (18) 0.71 (18) 0.94 (24) |
0.31 (8)
0.31 (8) 0.31 (8) 0.51 (13) 0.51 (13) 0.63 (16) 0.63 (16) 0.87 (22) 0.87 (22) 1.06 (27) 1.06 (27) 1.46 (37) |
| SRU Series | Pump Head Code | Model No. | Displacement
(Litres/rev) |
Displacement
(US gall/100 rev) |
Connection Size-Hygienic
inches (mm) |
Connection Size-Enlarged
inches (mm) |
Differential Pressure
psi (bar) |
Max Speed
(rev/min) |
|---|---|---|---|---|---|---|---|---|
| 1
1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 6 |
005
008 013 013 013 013 027 027 038 038 055 055 079 079 116 116 168 168 260 260 353 353 |
SRU1/005/LD/HD
SRU1/008/LD/HD SRU2/013/LS/HS SRU2/013/LD/HD SRU2/018/LS/HS SRU2/018/LD/HD SRU3/027/LS/HS SRU3/027/LD/HD SRU3/038/LS/HS SRU3/038/LD/HD SRU4/055/LS/HS SRU4/055/LD/HD SRU4/079/LD/HD SRU4/079/LS/HS SRU5/116/LS/HS SRU5/116/LD/HD SRU5/168/LS/HS SRU5/168/LS/HS SRU6/260/LS/HS SRU6/260/LD/HD SRU6/353/LS/HS SRU6/353/LD/HD |
0.053
0.085 0.128 0.128 0.181 0.181 0.266 0.266 0.384 0.384 0.554 0.554 0.79 0.79 1.16 1.16 1.68 1.68 2.60 2.60 3.53 3.53 |
1.4
2.25 3.38 3.38 4.78 4.78 7.03 7.03 10.15 10.15 14.64 14.64 20.87 20.87 30.65 30.65 44.39 44.39 68.70 68.70 93.26 93.26 |
1 (25)
1 (25) 1 (25) 1 (25) 1.5 (40) 1.5 (40) 1.5 (40) 1.5 (40) 2 (50) 2 (50) 2 (50) 2 (50) 2.5 (65) 2.5 (65) 2.5 (65) 2.5 (65) 3 (80) 3 (80) 4 (100) 4 (100) 4 (100) 4 (100) |
N/A
1.5 (40) 1.5 (40) 1.5 (40) 2 (50) 2 (50) 2 (50) 2 (50) 2.5 (65) 2.5 (65) 2.5 (65) 2.5 (65) 3 (80) 3 (80) 3 (80) 3 (80) 4 (100) 4 (100) 4 (100) 4 (100) 6 (150) 6 (150) |
115 (8)
75 (5) 145 (10) 215 (15) 100 (7) 145 (10) 145 (10) 215 (15) 100 (7) 145 (10) 145 (10) 290 (20) 100 (7) 215 (15) 145 (10) 290 (20) 100 (7) 215 (15) 145 (10) 290 (20) 100 (7) 215 (15) |
1000
1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 600 600 600 600 600 600 600 600 |