$2,000.00Original price was: $2,000.00.$1,800.00Current price is: $1,800.00.
Daisy Peri P is a precision peristaltic pump with 6 stainless steel rollers. It works with special silicone or BPT tubing with end-stops that engage the pump’s tubing mounts and pre-stretch the tubing for reproducible, accurate and reliable performance.
The Daisy P is offers the best precision a peristaltic pump can offer. The pump head is relatively light yet very stiff, and is equipped with 6 stainless steel rollers. Together, these features ensure smoother and more accurate pumping — even in higher back pressure conditions.
The specialized mounts used in this pump are designed to pre-stretch the tubing and to guide it within narrow grooves, preventing the tubing from slipping or shifting. This, in turn, results in highly reproducible pumping performance during the entire lifetime of the tubing.
The mounts work with special tubing with end-stops, which prevent the tubing from sliding during operation, further enhancing the precision and accuracy of the pump.
New tubing installation is straightforward. Simply remove the tubing cartridge by pressing the elastic lock arm on the side (1) and attach new tubing as shown in (2) by stretching two adjacent tube stoppers between the arms of the cartridge. Various tubing models may come with three tube stoppers that offer two pump attachment regions — when one section wears out, the user may switch to the other section and reuse the same tubing. Once the tubing is installed on the cartridge, press the cartridge onto the pump head as shown in (3). The tubing should stretch and wrap over the top half of the roller-rotor assembly as the cartridge is inserted. Afterwards, the top lever on the cartridge should be rotated counterclockwise (4) to apply pressure on the tubing. The knob on the lever may be tightened to adjust the pressure on the tubing, depending on the outer diameter of the tubing.
The nominal flow rates that can be achieved on the Daisy Peri P pump with the various tubing sizes offered by Scalables (either silicone or PharMed BPT) are as follows:
Every time a new tubing is installed and the cartridge pressure on that tubing might have changed, it is a good idea to recalibrate the flow rate in the context of the application. For instance, if the pump is connected to a number of other tubings, plumbing, channels and devices, run and calibrate the pump’s output flow with everything connected. In this manner, you can achieve the highest reproducibility and precision. To maintain high flow precision, it may also be necessary to tighten the pressure knob on a given cartridge as the tube accumulates usage time and gradually gets stretched out.
Whether you need to transfer fluids in a laboratory setting or handle delicate substances in an industrial application, our peristaltic pump with 6 stainless steel rollers is the ideal choice. Experience the highest level of precision and reliability with our innovative peristaltic pump. Order yours today and take your pumping operations to the next level.
Weight
1.2 kg
Dimensions
100 × 100 × 150 mm
Color
Housing: Anodized black
Put head: White and blue
Rollers: Stainless steel
Tubing Material
Use only BPT or Silicone tubing
Tubing Size Range
Min OD: 2 mm
Max OD: 5 mm
Pump Speed
Up to 150 rpm
Up to 65.2 ml/min with 3mm/5mm (ID/OD) tubing
Expected Life Cycle
3000 hours minimum
Leak Pressure
Pump itself does not leak.
Check the leak pressure of connectors
and the burst pressure of tubing used.
Wetted Materials
BPT or silicone (only external tubing is wetted)
Tubing Connection
Use hose barb connectors or appropriate adaptors to connect tubing.
Unit Power Input
24 VDC, 4A
Power Adapter Input
110-240 VAC, 50/60 Hz
Adapter Safety Certifications
FCC, CE, UL
Operating Conditions
Temperature: 0-40 degrees C
Relative Humidity: Up to 80%
Peristaltic Pump Tubing: Essential Selection and Maintenance Tips
Peristaltic pumps offer versatile fluid transfer solutions, but their efficiency and longevity heavily rely on proper tubing selection and maintenance. Let’s delve into key considerations and actionable tips to ensure optimal performance and durability of peristaltic pump tubing.
Understanding Wear and Tear
Over time, peristaltic pump tubing can degrade, primarily due to damage from the pump head’s rotor. This damage often stems from incorrect tubing length, causing repetitive friction with the rotor edge during operation. This friction accelerates wear and tear, leading to potential bursting after extended use. Prompt replacement and preventive measures are crucial to mitigate such issues.
Selecting the Right Tubing Material
Choosing the correct tubing material is paramount. Conduct a chemical compatibility test to ensure it withstands the pumped substance and operating conditions. Temperature, system pressure, and bore size are critical factors influencing tubing selection. Optimal dimensions and material quality enhance tubing lifespan and prevent premature failures.
Installation and Maintenance Best Practices
Proper installation is fundamental. Ensure tubing is straightened and securely clamped to prevent displacement. Regular inspection for wear signs like thinning or abrasions is recommended. Prompt replacement upon damage minimizes downtime and maintains fluid transfer efficiency.
Essential Maintenance Tips
Regularly monitor tubing life expectancy, considering factors like transparency, gas permeability, and regulatory compliance. Additionally, recalibrate systems as needed to address flow rate drop-off over time. Conduct extractable and leachable studies for applications requiring stringent quality control.
If pump tubing breaks, creating a leak over the peristaltic pump, promptly wipe the pump head and body dry. Depending on the type of fluid leaked, spraying and wiping with 70% isopropyl alcohol might be needed. Make sure the pump head and rollers are clean, free of any residue or particulates before installing a new tubing.
Good quality pharma BPT tubing can last up to 1000 hours of operation with water. If there is considerable back pressure, increased temperature or chemical interactions between the fluid and the tubing material, this lifetime will be reduced. Silicone tubing can last up to 200 or more hours of operation.
Connecting Peristaltic Pump Tubing
Pay attention to suction and delivery pipe bores, ensuring compatibility with tubing size. Use larger bore tubing for viscous fluids and maintain flexible tubing lengths to minimize impulse losses. Optimize pump speed based on application requirements to maximize tube life, flow rate, or accuracy.
Investing in Quality
Choosing high-quality tubing from reputable suppliers minimizes risks of failure and ensures consistent performance. While cost-effectiveness is essential, prioritize durability and compatibility with application requirements to optimize long-term reliability. We provide only the highest quality tubing selections on our site.
Conclusion
Peristaltic pump tubing plays a crucial role in fluid transfer operations, and proper selection and maintenance are vital for sustained performance. By adhering to best practices, monitoring wear, and investing in quality materials, users can enhance pump efficiency, minimize downtime, and prolong tubing lifespan, ensuring reliable operations across diverse applications.
Command Set
All Daisy Peri pump models (T or P) share the same command set.
Always start your automation scripts by setting up the interface to the Daisy instruments. Assuming your Daisy Peri pump is the first instrument in the first group:
peri_pump = self.my_interface.groups[0].inst[0]
The next step is to calibrate the peristaltic pump:
calibration_speed = 60 # ml/min @ 60 rpm
peri_pump.calibrate(calibration_speed) # 60 rpm on the peri pump corresponds to 60 ml/min in this calibration.
Finally, the run command format is:
peri_pump.run(<Pumping speed in ml/min>, <target volume to pump in ml> <wait flag>)
For instance, the following command will pump 6 ml of fluid (based on calibration numbers) at 100 ml/min with the roller head turning in a clockwise direction:
peri_pump.run(100.0, 6.0, wait=True)
Pumping in the opposite direction requires a simple sign reversal in the target volume to be pumped:
peri_pump.run(100.0, -6.0, wait=True)
Application Example: Continuous Flow Control
The script segment below uses a Daisy Peri T (peristaltic pump) and a Daisy Multi Val (selector valve) to set up a cell perfusion assay. The Peri T provides continuous, long-term flow of reagents into the perfusion chamber, while the Multi Val switches between various input reagents/buffers (up to 12 different inputs) to feed to the pump. The example below uses a time-of-day based scheduling to switch between the different reagents.
from datetime import datetime
g1 = self.my_interface.groups[0]
peri_pump = g1.inst[0] # first instrument in the chain is the Daisy Peri T
multi_val = g1.inst[1] # second instrument in the chain is Daisy Multi Val
# Start by homing the selector valve
multi_val.home() # waits automatically to finish. Defaults to port 1
# Next, calibrate the peristaltic pump according to the tubing used
calibration_speed = 7.54 # ml/min @ 60 rpm; using 1.6/4.8 ID/OD (mm) tubing
peri_pump.calibrate(calibration_speed)
# Finally, start the peri pump at 10 ml/min perfusion speed, choosing
# different reagents at different times. For simplicity, let's assume
# the cells are in an artificial muscle environment, reacting to
# simulated glucose level increases with every meal. Breakfast at
# 08:00, Lunch at 12:00 and dinner at 18:00. This is just an example;
# the reagent schedule could be anything your application needs.
current_time = datetime.now().time()
# Define meal times and the duration of glucose spike from each meal
breakfast_time = current_time.replace(hour=8, minute=0, second=0, microsecond=0)
breakfast_digest_time = current_time.replace(hour=9, minute=30, second=0, microsecond=0)
lunch_time = current_time.replace(hour=12, minute=0, second=0, microsecond=0)
lunch_digest_time = current_time.replace(hour=14, minute=0, second=0, microsecond=0)
dinner_time = current_time.replace(hour=18, minute=0, second=0, microsecond=0)
dinner_digest_time = current_time.replace(hour=20, minute=15, second=0, microsecond=0)
check_interval = 60 # seconds
one_hour = check_interval*60
# start the peri pump
peri_pump.run(10.0, 10*60*24*10, wait=False) # run at 10 ml/min for 10 days
while True:
current_time = datetime.now().time()
if (current_time >= breakfast_time):
multi.select_port(3, wait=False) # breakfast spike on port 3
if (current_time >= breakfast_digest_time):
multi.select_port(1, wait=False)
if (current_time >= lunch_time):
multi.select_port(4, wait=False) # lunch spike on port 4
if (current_time >= lunch_digest_time):
multi.select_port(1, wait=False)
if (current_time >= dinner_time):
multi.select_port(5, wait=False) # dinner spike on port 5
if (current_time >= dinner_digest_time):
multi.select_port(1, wait=False)
time.sleep(60) # next check 1 min later
$3,500.00Original price was: $3,500.00.$3,250.00Current price is: $3,250.00.
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