Inner lined PTFE peristaltic pump tube

Inner lined PTFE peristaltic pump tubeSuccessfully developed by Shanghai Delian Instrument Co., Ltd,The peristaltic pump airbag method can be used to collect gas samples,This is an innovative gas sample collection method with simple equipment, low cost, fast sampling speed, and the ability to quickly replace a pump tube for each sample collected without cross sample contamination.

Inner lined PTFE peristaltic pump tubeDivided into two layers, the inner layer is made of polytetrafluoroethylene (PTFE), which has good inertness, acid and alkali corrosion resistance, and anti adsorption properties; The outer layer of silicone rubber maintains the elasticity and peristalsis of the peristaltic pump tube.

Peristaltic pumps rely on a triangular pump head to rotate and squeeze elastic silicone rubber pump tubes to provide power for fluid delivery. The friction coefficient between the inner layers of the silicone rubber tubes is high, and friction generates a large amount of heat. However, the liquid in the flow channel can take away the heat generated by friction and also act as a lubricant, so peristaltic pumps are widely used for liquid delivery. However, as a gas sampling device, ordinary silicone rubber peristaltic pump tubes cannot be used because the heat generated by the friction in the inner layer of the pump tube cannot be carried away by the gas flow in the channel. Under high temperature friction conditions, silicone rubber can also produce decomposed gases that contaminate the collected gas in the channel.

Inner lined PTFE peristaltic pump tubeThe inner layer of polytetrafluoroethylene (PTFE) has a low smooth friction coefficient and generates less heat. The peristaltic pump tube will not be affected by temperature rise, which enables the collection of gas samples by the peristaltic pump. PTFE inner layer has good high temperature resistance and will not produce decomposed gases due to friction, nor will it pollute the gas in the flow channel. The PTFE layer has excellent anti adsorption properties and will not cause a decrease in the concentration of collected gas, which will affect the gas detection results.

Through practical application, it has been proven that peristaltic pumps,Lined with PTFE peristaltic pump tubing,The full flow PTFE gas sampling system composed of PTFE gas sampling bags and other components is an economical, convenient, fast, and reliable method for gas collection and storage