Tees and Crosses:
These are described as fittings with entirely identical threads (3 for tees, 4 for crosses). They are all the same gender and thread type. For example, a Male BSPP Tee is a fitting with 3 identical male BSPP threads, while a Female BSPP Cross has 4 identical female BSPP threads.
Branch Tees and Run Tees:
Branch Tees are 3 ended fittings with the common threads located straight across from one another, while Run Tees have the common threads located at 90° from each other. The rules for listing both branch and run tees are the same: if there is one thread type only, the part is usually listed by the odd thread gender first. For example, a Female JIS Run Tee has 2 male threads and one female (all JIS). Alternatively, if there are 2 thread types, the common threads are listed first, then the odd end (with gender reference). For example, a Male JIC X Male BSPT Run Tee has 2 male JIC threads and one male BSPT thread.
Test Port Tees:
Test port tees are not conversion adapters, rather they are meant to be placed in line with your current hydraulic system allowing for the implementation of a pressure gauge, for example. They usually consist of a male and female thread (swivel) that are always identical thread types. Test port thread types and sizes vary from fitting to fitting but are always female.
How to order Fittings
STEP 1: Steel
STEP 2: Tee/Cross
STEP 3: STEP 4: Choose Size STEP 5: Choose Fitting
JIC MALE X BSPP MALE ADJ. BRANCH TEE
STEP 4: Choose Size
STEP 5: Choose Fitting