The key in selecting the right fluid connector is understanding your application. Here are some of the questions you should ask:
What is the fluid media? Viscosity and corrosiveness of the fluid must be considered. Understand how changes in the coolant’s viscosity over the operating temperature range can impact the pressure drop across the fluid connectors. Make sure the fluid is chemically compatible with the fluid connector’s wetted materials including any O-rings.
What are the tube or hose size and flow rate requirements? The internal diameter of the fluid path components will have a great impact on pressure drop and fluid velocities. Make sure to account for pressure drop across connectors and check fluid velocities to prevent erosion corrosion.
What are the maximum and minimum system operating temperatures and pressures? Connectors will need to maintain the seal at all these operating points. Consult with your fluid connector supplier for the proper hose or tube wall thickness, surface finish, hardness (durometer for hoses), concentricity, and ovality (tubing only).
Will the system experience vibration, pulsation, or thermal cycling? The seal between the tube or hose and the fluid connector needs to be maintained during these changes in process conditions. Check with your fluid supplier for the proper fluid connector for your application.
How is the connection going to be configured into your application? Common mounting options include pipe thread, in-line, rigid mount, panel mount, or elbow.
What industry standards or other special requirements need to be complied with? Some standards to consider include ISO (International Standards Organization), FDA (Food and Drug Administration), and RoHS (Restriction of Hazardous Substances).