1、 Test purpose

At the request of a certain customer, JJRS-30004F advanced three plunger PTFE pump was used to transport sodium hypochlorite solution, in order to evaluate the flow stability and accuracy of JJRS-30004F in transporting sodium hypochlorite.

2、 Materials and Equipment

Material: Sodium hypochlorite solution, with a density of 1.2055g/mL and a content of approximately 12-15%.

Equipment: Jingjin three plunger PTFE pump (JJRS-30004F), GF-30K balance (range 30kg, accuracy 0.1g).

3、 Testing process

The customer adopts the weight reduction method for autonomous operation: place the liquid barrel on the balance, insert it into the inlet pipe of the pump, and deliver flow rates of 36.5, 53.3, 71, 89, and 109 mL/min respectively. Record the delivery time and balance reading for each set flow rate, and calculate the delivery flow rate value within a unit time based on the delivery time and reduced weight.

4、 Test data and analysis

5、 Test results

Customer evaluation: During the delivery of sodium hypochlorite using the Jingjin Three plunger PTFE Pump (JJRS-30004F), except for a few flow points with slight fluctuations (within an acceptable range), the overall stability and accuracy stability are good.

6、 Supplementary explanation

1. Due to the fact that only single data was taken in this test and the scale has a large range, the deviation caused is slightly larger compared to the full range;

2. Due to the testing timing method being precise to 0.1 minutes, the time measurement accuracy is insufficient. It is recommended to increase the time measurement accuracy to 0.1 seconds;

3. Due to material characteristics, there may be differences between actual density and theoretical density;

Due to the combined effects of the above factors, some volume flow rates deviate from the set values, but the stability is good.

About Jingjin Technology

Hangzhou Jingjin Technology Co., Ltd. was founded in 2018. It is a national high-tech enterprise engaged in the research and development, production, and sales of precision feeding equipment and systems. It is also a specialized and innovative enterprise in Zhejiang Province. The company's entire product line has obtained CE certification and ATEX certification, and the explosion-proof series products have also obtained explosion-proof certification. The independently developed patented product "Jingrui Three Column Feeding System" has been registered as a scientific and technological achievement in Zhejiang Province in 2023 and has been issued a scientific and technological achievement registration certificate. It was awarded the title of Excellent Industrial New Product in Zhejiang Province in 2024. The production of sanitary pumps through continuous GMP production has obtained 3A certification.

The company has been focusing on the intelligent manufacturing of "continuous flow process research and industrialization precision feeding systems", mainly serving industries such as fine chemicals, pharmaceuticals, biology, military, semiconductors, etc. Based on customer needs, the product is developed and applied to continuous hydrogenation, nitrification, chlorination, esterification, oxidation, alkylation, ammonolysis, diazotization, halogenation, small flow dropwise addition and other processes, aiming to achieve precise, stable and intelligent material transportation in continuous production processes and provide precise feeding system solutions.