Almatec Biocor Diaphragm Pump
The Almatec Biocor air-operated double-diaphragm pump series is specifically designed for sterile applications within the pharmaceutical, biotech, and food industries. The aseptic pumps are EHEDG certified and in compliance with FDA, USP Class VI, and ATEX standards. The B20 and B32 sizes are also available in a 3-A version.
Since the Biocor is sterile by design, it has no horizontal areas. The pump is drained by magnetically lifting the valve balls from the outside. The pump has no drives, no rotating parts, and no shaft seals within the fluid. This specialized design—with the integrated cleaning system—allows for clean-in-place (CIP) and sterilization-in-place (SIP) capabilities.
Models
- B20
- B32
- B40
The Biocor series is available in three pump sizes: B20, B32, and B40.
Almatec is a premier manufacturer of air-operated double-diaphragm (AODD) pumps.
Working Principle
The Biocor series is based on the functional principle of double diaphragm pumps. The basic configuration consists of two external pump housings with a center block between them. Each pump housing contains a product chamber that is separated from the center block by a diaphragm. Both diaphragms are interconnected by a piston rod. Controlled by an air control system, they are alternately subjected to compressed air so that they move back and forth.
In Fig. 1 the compressed air has forced the left diaphragm towards the product chamber and displaced the liquid from that chamber through the open valve at the top to the discharge port. Liquid is simultaneously drawn in by the right diaphragm, thus refilling the second product chamber. When the end of the stroke is reached, it reverses automatically, and the cycle is repeated in the opposite direction.
In the Fig. 2 liquid is drawn in by the left-hand diaphragm and displaced by the right-hand diaphragm. The liquid is displaced, and thus conveyed, by the compressed air. The diaphragms merely serve as barriers and are not pressurized, which greatly increases the service life of the diaphragms.
Materials
| Wetted Housing Parts | Electropolished 316L stainless steel with Ra of ≤ 0.4 μm (15.75 µin) |
| Frame | 304 stainless steel |
| Center Block | Conductive polyethylene |
| Diaphragms, Ball Valves, O-rings | PTFE or EPDM (FDA); other materials on request |
Connections
The suction and discharge ports are suitable for Tri-Clamp® or other sanitary threads (Naue, Neumo, DIN 11851, DIN 11864).
Biocor Features
- Integrated cleaning system with high cleaning results
- CIP (clean-in-place) and SIP (sterilization-in-place) options
- Smooth diaphragms without disc and seals
- Gentle displacement
- Proof against dry running
- Self-priming
Gentle Handling
Always a demand for sterile applications, all Biocor pumps have no horizontal areas in the housing parts. Each pump comes with four ball lifting magnets, which can be attached to the pump housing from the outside at the location of the four ball valves. The ball valves are raised up magnetically out of their seats, and the pump is drained entirely without having to be dismounted. There are no mechanical ball lifters with parts and seals in the wetted area. Since there are no rotating parts or shaft seals in the product chamber, the pump provides gentle displacement, making it suitable for applications that require extremely gentle handling.
active Pulsation Dampers
Due to their design, pumps with oscillating action produce a pulsating flow. Although the double-acting design of Almatec pumps and the direct pneumatic drive greatly reduce the pulsation, a pulsation damper must still be installed on the discharge side in order to obtain a virtually uniform flow.
The dampers are self-regulating. As with Almatec pumps, the diaphragm merely serves as a barrier between product and air chamber and is, therefore, always without pressure. If the pressure on the product side drops due to changes in the operating conditions, the pressure on the other side of the diaphragm will decline accordingly. As soon as the pressure on the product side rises, the pressure on the other side will increase as well. This automatic adjustment optimizes the diaphragm setting and ensures a consistently good damping effect.
Diaphragms, Ball Valves, and Air Control System
The surface of the Almatec diaphragms is smooth and not interrupted by any seals. Due to the integrated metal core, they do not require diaphragm discs, which frequently result in leaks. Almatec diaphragms have always been designed from the "PTFE" point of view, which results in Almatec diaphragms having a large diameter and short stroke with low flexural load.
Almatec diaphragms for the Biocor series are available in the materials EPDM (FDA) or PTFE/EPDM composite. The ball valves, which are insensitive against solids, have a metal core for a better suction lift. Additionally, the use of the ball lifting magnets for the complete pump draining is possible.
Almatec's Biocor pumps are equipped with the patented PERSWING P® air control system. This metal-free, pneumatically pilot-operated control system ensures accurate reversal of the main piston and is characterized by low noise levels. The PERSWING P has only two moving parts, which ensures that there is absolutely no dead center in the control system. It does not require maintenance, operates without any lubrication whatsoever, and is made up of no more than four different parts. The complete cartridge can be replaced easily. PERSWING P is a precision control system and, therefore, requires clean, oil-free compressed air to ensure its optimal function.
Optional Equipment
Diaphragm Monitoring (Code D)
While Almatec diaphragms are designed for an optimum service life, the diaphragms remain a wear part. In the event of a diaphragm rupture, a capacitive sensor in the pump muffler detects any liquid and gives a corresponding signal to a controller (can also be supplied), which then triggers an alarm or disconnects the pump via a solenoid valve.
Barrier Chamber System (Code B)
The Almatec barrier chamber system meets further safety requirements. The individual diaphragm is replaced by two diaphragms arranged in tandem with a barrier chamber filled with non-conductive liquid. The barrier chambers must always be completely filled so the driving air pressure can be transmitted. If the diaphragm on the product side ruptures, medium merely enters the barrier chamber, and the neutral barrier liquid flows into the medium. The change in conductivity of the barrier liquid is detected by sensors and signaled to a controller, which triggers an alarm or disconnects the pump. The conductivity limit equals 22 microSiemens.
Stroke Counting (Code C)
A sensor is installed in the center block of the pump to count the strokes. The diaphragm movement is scanned without contact. The issued sensor pulses can be output to existing detectors or to a stroke counter (can also be supplied). When the preset value is reached, the stroke counter outputs a signal that can then be processed further. For example, the counter could make the pump shut down via a solenoid valve. Another possibility is the pneumatical stroke counting.
Dimensional Data
| B20 | B32 | B40 | |
| Length (in) | 9.6 | 11.2 | 18.2 |
| Width (in) | 5.9 | 7.9 | 10.6 |
| Height (in) | 15 | 19 | 26.8 |
| Nominal Port Size* | DN 20 | DN 32 | DN 40 |
| Air Connection, BSP | ¼ inch | ¼ inch | ½ inch |
| Weight (lb) | 27 | 57 | 147 |
*Depends of the chosen suction and discharge connection.
Technical Data
| B20 | B32 | B40 | |
| Max Particle Size of Solids | 0.12 | 0.20 | 0.35 |
| Suction Lift, Dry (ftWc) | 6.6 | 8.2 | 9.8 |
| Suction Lift, Wet (ftWc) | 29.5 | 29.5 | 29.5 |
| Max Driving and Operating Pressure (psig) | 100 | 100 | 100 |
| Max Operating Temperature | 176ºF | 176ºF | 176ºF |
| Max Short-Term Temperature | 266ºF | 266ºF | 266ºF |
| Max Capacity (gpm) | 15.4 | 33 | 75 |
| Max Discharge Pressure (psig) | 100 | 100 | 100 |
Product Resources
See all resources by AlmatecLiterature
Blog Posts
- Performance Curves
Spare Parts
- Biocor Spare Parts
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Part B 20 B 32 Pump Housing 52014040 53214040 O-Ring, Pump Housing, EPDM 91755773 92366873 O-Ring, Pump Housing, PTFE 91755760 92366860 Pipe Bend, Suction Side 52013840 53213840 Suction Port, Code A 52044140 53244140 Suction Port, Code N1 52004140 53204140 Suction Port, Code N2 52014140 53214140 Suction Port, Code N2X 52054140 53254140 Suction Port, Code M 52024140 53224140 Suction Port, Code T 52034140 53234140 Pipe Bend, Discharge Side 52013940 53213940 Discharge Port, Code A 52044240 53244240 Discharge Port, Code N1 52004240 53204240 Discharge Port, Code N2 52014240 53214240 Discharge Port, Code N2X 52054240 53254240 Discharge Port, Code M 52024240 53224240 Discharge Port, Code T 52034240 53234240 Frame 52014323 53214323 Housing Bolt, Cpl., Short 52015422 53215422 Housing Bolt, Cpl., Long 52015622 53215622 Shock Absorber, EPDM 11502278 11502278 Disc, DIN 125 90615160 90615160 Nut, DIN 1587 90610622 90610622 Shaft 52014522 53214522 Set Screw, Shaft, DIN 913 91022022 91222122 Diaphragm, PTFE 11503167 12503167 Diaphragm, EPDM (FDA) 11503173 12503173 Valve Ball, EPDM 11503282 12503282 Valve Ball, PTFE 11503289 12503289 Valve Stop 52004423 53204423 Set Screw, DIN 7 90240122 90240122 O-Ring, Valve Stop, EPDM 92366873 93752873 O-Ring, Valve Stop, PTFE 92366860 93752860 Center Block 52005356 53205356 Shaft Piston Ring, Cpl. 11504164 12504164 Uni-Flo Air Control System, Cpl. 52010184 52010184 Air Inlet 11504784 11504784 Air Filter 11504351 11504351 Muffler 11524451 11524451 O-Ring, Air Valve Housing, Buna 93550471 93550471 Valve Lifting Magnet 52004622 53204622 Shaft 52024522 53224522 Set Screw, Shaft, Barrier Chamber 91022322 91222422 Center Block 11524055 12524055 Perswing P Air Control System, Cpl. 21500184 21500184 Separation Chamber Ring 52017658 53217658 Conductivity Sensor 11007456 11007456 O-Ring, Separation Chamber 90350972 90350972 Plug 11007753 11007753 Inner Diaphragm 11513172 12513172 Spacer 5217884 N/A Center Block for Sensor 52015356 53215056 Center Block for Sensor, Barrier Chamber 11534055 12534055 Stroke Sensor, Namur 10007299 10007299 Center Block w/ Additional Air Connection 52025356 53225056 Center Block, Barrier Chamber w/ Additional Air Connection 11544055 12544055 Adapter Elbow 10087551 10087551 Hose 10087651 10087651 Pressure Switch Cpl. 10097299 10087299 Socket w/ Cable 10097399 10087399 Diaphragm Sensor, Namur 10077399 10077399
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