Adaptor Tee

A filtration system comprising:

• a filtration vessel having a permeate outlet port;
• a header for collecting permeate, the header having an inlet;
• an adaptor tee comprising:
• a main body of a single piece of plastic material having a cylindrical shape extending along an axial direction between opposing first and second ends;
• an inlet opening in the first end of the main body;
• a first outlet opening in the second end of the main body;
• a first flow passage extending through the main body between the inlet opening and the first outlet opening;
• a second outlet opening through a lateral surface of the main body;
• and
• a second flow passage extending through the main body between the first flow passage and the second outlet opening, the second flow passage meeting the first flow passage in a T-junction,
• wherein a first outlet connection that is coupleable to a sample valve is provided at the first outlet opening,
• wherein a second outlet connection that is coupleable to a collection conduit is provided at the second outlet opening,
• wherein the first flow passage has a first section having a first inner diameter and a second section having a second inner diameter smaller than the first inner diameter, the T-junction being located in the first section,
• wherein the second flow passage has a third inner diameter larger than the second inner diameter,
• wherein an inlet connection of the adaptor tee provided at the inlet opening is connected to the permeate outlet port, and
• wherein a conduit is connected between the second outlet connection of the adaptor tee and the inlet of the header.

A method of manufacturing an adaptor tee, the method comprising:

• providing a main body of a single piece of plastic material having a cylindrical shape extending along an axial direction between opposing first and second ends;
• machining an inlet opening in the first end, a first outlet opening in the second end, and a first flow passage extending through the main body between the inlet opening and the first outlet opening into the main body;
• machining a second outlet opening through a lateral surface of the main body and a second flow passage extending between the first flow passage and the second outlet opening into the main body, such that the second flow passage meets the first flow passage in a T-junction,
• wherein the machining comprises machining such that at the inlet opening, an inlet connection is provided, and that at the first and second outlet openings, first and second outlet connections are provided, respectively, and
• wherein the machining of the first and second flow passages comprises machining the first and second flow passages such that the first flow passage has a first section having a first inner diameter and a second section having a second inner diameter smaller than the first inner diameter, the T-junction being located in the first section, and that the second flow passage has a third inner diameter larger than the second inner diameter.