The peristaltic pump is primarily a positive displacement pump, utilized typically for pumping both aggressive and sterile fluids in a manner that prevents their contamination. This pump functions on the same basic principle as peristalsis, which is a natural event observed within living organisms – like the esophagus of humans.

peristaltic pump

The pump comprises several shoes, mostly two that compress flexible tubing along the edges of a circular pump casing. You will find that distance in-between the rotary shoes remains constant, if you for instance buy peristaltic pump having two shoes. The unchanging distance present between these two shoes generates the same proportion of vacuum for suction without regarding rpm of the shoe-rotating motor. The quantity of fluid encapsulated within the subsequent phase of vacuum generation varies proportionally to the generated vacuum. As such, flow rates of peristaltic pumps are clear-cut over three tube constrictions of sequential nature. Consistency of output flow rate for the pump facilitates its suitability for applications relating to metering and dosing.

Factors Affecting Flow Rate

Although the per-cycle pump output is indifferent to the motor’s rpm, the flow rate does vary in direct proportion to it. Variations in the motor’s rpm generate relevant change in terms of output flow rate. This may be shown by assembling a variable frequency drive or VFD within the peristaltic pump system. It is nonetheless necessary for rpm of motor to remain constant after the required flow rate is achieved. This is because metering applications require for an invariable flow rate across a protracted time-frame.

Metering Application and Characteristics of Performance

Peristaltic pumps are employed widely as metering pumps within the medical field owing to isolation of fluids during the pumping process. In general, accuracy of flow rate for peristaltic pumps ranges in-between ±0.25% and ±5%. These pumps are primarily applied for infusion of medicinal fluids due to their ability of infusing at even the low rate of 0.1 ml/hour. Slow infusions of such kind could prevent blood clots within the vein. Sensitive administrations of this nature require pressure guards to prevent air infusion occasioned by absence of source fluid. An optical gadget is utilized for detecting bubbles introduced within the system while pumping takes place. Working mechanism of such a peristaltic pump Australia merchants have available incorporates an anti-siphoning functionality, which makes them suitable for applications involving medical metering. read more

In over the past 50 years, the evolution of automated doors has provided many an industrial customer with security and convenience. The ongoing progress from slow rigid rollers to high speed doors continues to bring forth energy savings and improved productivity. However, the quest for high-cycle automation also comes with more risks. When protocols are not implemented, the lives or well-being of workers may be endangered.

high speed doors

Door safety is merely one of the many issues every employer must address in an industrial workplace. In response, consider the following points for the safe usage of rapid roll up doors and similar products in your business:

Training for Your Staff

Forklift operators need sufficient training not only in using their vehicles but also in avoiding collisions with roller doors. It can be easy to miscalculate the speed at which the doors open and shut. Not to mention, there is the possibility of high speed doors closing without warning. The lack of training can lead to accidental damage to your equipment. Plus, your workers could get seriously injured. Schedule a briefing or orientation with your door provider right after installation. Your employees should be aware of the possible risks involved.

Visibility of the Doors

For those who own a high-traffic warehouse or building, it is a must to ensure that entrances will stand out. A good option for applications that require high visibility is coloured metal doors. The problem is that they are quite susceptible to scratching, making them less effective. Vertical lift fabric doors made of standard UV protected material would be an excellent alternative. They are made to be resistant to winds, high or low temperatures, dust, and excess moisture.

Environmental Conditions

Continuing on the same note as the above point, extreme weather conditions can damage cold room doors and other entrances over time. Are the products you’re using robust enough to withstand harsh winds and the like? Depending on the location and season, gusts can reach speeds of over 100km/hr which can cause doors to buckle. Heavy-duty models are less likely to come loose and unhinged from their frames and be a hazard to the workers inside a building. read more

เครื่องจักรชนิดหนึ่งที่เชื่อว่าหลายคนที่ไม่ใช่ช่างหรือวิศวกรมักจะไม่รู้จักและไม่เคยได้ยินชื่อมาก่อนก็คือ  vacuum pump หรือชื่อภาษาไทยว่าปั๊ม สูญ ญา กา ศนั่นเอง โดยเครื่องจักรที่เรียกว่าปั๊มสูญญากาศนี้จะทำหน้าที่สูบอากาศภายในออกจนเกือบหมดหรือเกือบเป็นสูญญากาศ โดยปั๊มสูญญากาศนั้นหลายคนมักจะคิดว่าเจ้าเครื่องจักรนี้ใช้ในโรงงานอุตสาหกรรมต่างๆเท่านั้น แต่ที่จริงแล้วปั๊มสูญญากาศ นั้นอาจจะนำมาใช้งานอยู่บริเวณรอบตัวเราโดยที่เราไม่เคยรู้ เช่น เครื่องปรับอากาศในบ้านของเรา ซึ่งเครื่องปรับอากาศในปัจจุบันนี้ ส่วนใหญ่จะมีเติมน้ำยาเคมีทำความเย็นพร้อมตั้งแต่การติดตั้งแล้ว  ซึ่งก่อนที่ช่างจะเปิดวาล์วเพื่อให้น้ำยาทำความเย็นไหลวนเวียนเข้าสู่ระบบ ก็จะมีการใช้ปั๊มสูญญากาศเพื่อให้ดูดอากาศที่อยู่ข้างในท่อให้หมด เพื่อช่วยให้ท่อแอร์ปราศจากอากาศ และน้ำยาทำความเย็นสามารถไหลเวียนได้อย่างมีประสิทธิภาพ read more