The Parker CPI / A-LOK Tube End Reducer (TRBZ / TUR) is a tube end reducer in which the turned end (T1) and the machined end (T2) each have their own tube outer diameter. It comes in 39 size combinations with tube outer diameters from 1/16" to 2".
| Type | Tube end reducer: turned end (T1) and machined end (T2) |
| Part Numbers | CPI 2-1 TRBZ, A-LOK 2TUR1 ~ CPI 32-24 TRBZ, A-LOK 32TUR24 |
| Size Numbers | Tube size numbers in the part number are in sixteenths of an inch (for example 1/2" tube = 8) |
| Material | 316 stainless steel (heat code traceable) is standard / Other materials: steel, brass, aluminum, nickel-copper, Hastelloy C, Alloy 600, titanium, 6Mo, Incoloy 625 and 825 |
| Material Codes | Material code added to the end of the part number after a hyphen: B brass / SS or 316 = 316 stainless steel / S steel / A aluminum / M Alloy 400 / HC Hastelloy C-276 / IN Alloy 600 / SS20 Carpenter 20 / 6MO 6Mo / 625 / 825 / T titanium |
| Tube Stub End Assembly | Add -Z6 to the part number to have the nut and ferrules assembled on the tube stub end |
| Grooving | Sizes 1, 2 and 3 do not require a groove; tube stubs of size 4 and above are pre-grooved as standard |
| Lubrication | Sizes 20 and 24 require additional lubrication prior to assembly |
| Tube Stubs over 1" | All tube stubs over 1" come standard with nuts and ferrule(s) pre-assembled (-Z6 option) |
| Sizes (inches): T1 tube O.D., T2 tube O.D. by CPI Part Number (A-LOK Part Number) | 2-1 TRBZ (2TUR1): T1 tube O.D. 1/8", T2 tube O.D. 1/16" / 3-1 TRBZ (3TUR1): T1 tube O.D. 3/16", T2 tube O.D. 1/16" / 4-1 TRBZ (4TUR1): T1 tube O.D. 1/4", T2 tube O.D. 1/16" / 1-2 TRBZ (1TUR2): T1 tube O.D. 1/16", T2 tube O.D. 1/8" / 2-2 TRBZ (2TUR2): T1 tube O.D. 1/8", T2 tube O.D. 1/8" / 3-2 TRBZ (3TUR2): T1 tube O.D. 3/16", T2 tube O.D. 1/8" / 4-2 TRBZ (4TUR2): T1 tube O.D. 1/4", T2 tube O.D. 1/8" / 6-2 TRBZ (6TUR2): T1 tube O.D. 3/8", T2 tube O.D. 1/8" / 8-2 TRBZ (8TUR2): T1 tube O.D. 1/2", T2 tube O.D. 1/8" / 2-3 TRBZ (2TUR3): T1 tube O.D. 1/8", T2 tube O.D. 3/16" / 4-3 TRBZ (4TUR3): T1 tube O.D. 1/4", T2 tube O.D. 3/16" / 2-4 TRBZ (2TUR4): T1 tube O.D. 1/8", T2 tube O.D. 1/4" / 3-4 TRBZ (3TUR4): T1 tube O.D. 3/16", T2 tube O.D. 1/4" / 4-4 TRBZ (4TUR4): T1 tube O.D. 1/4", T2 tube O.D. 1/4" / 5-4 TRBZ (5TUR4): T1 tube O.D. 5/16", T2 tube O.D. 1/4" / 6-4 TRBZ (6TUR4): T1 tube O.D. 3/8", T2 tube O.D. 1/4" / 8-4 TRBZ (8TUR4): T1 tube O.D. 1/2", T2 tube O.D. 1/4" / 10-4 TRBZ (10TUR4): T1 tube O.D. 5/8", T2 tube O.D. 1/4" / 12-4 TRBZ (12TUR4): T1 tube O.D. 3/4", T2 tube O.D. 1/4" / 6-5 TRBZ (6TUR5): T1 tube O.D. 3/8", T2 tube O.D. 5/16" / 8-5 TRBZ (8TUR5): T1 tube O.D. 1/2", T2 tube O.D. 5/16" / 4-6 TRBZ (4TUR6): T1 tube O.D. 1/4", T2 tube O.D. 3/8" / 6-6 TRBZ (6TUR6): T1 tube O.D. 3/8", T2 tube O.D. 3/8" / 8-6 TRBZ (8TUR6): T1 tube O.D. 1/2", T2 tube O.D. 3/8" / 10-6 TRBZ (10TUR6): T1 tube O.D. 5/8", T2 tube O.D. 3/8" / 12-6 TRBZ (12TUR6): T1 tube O.D. 3/4", T2 tube O.D. 3/8" / 4-8 TRBZ (4TUR8): T1 tube O.D. 1/4", T2 tube O.D. 1/2" / 6-8 TRBZ (6TUR8): T1 tube O.D. 3/8", T2 tube O.D. 1/2" / 10-8 TRBZ (10TUR8): T1 tube O.D. 5/8", T2 tube O.D. 1/2" / 12-8 TRBZ (12TUR8): T1 tube O.D. 3/4", T2 tube O.D. 1/2" / 16-8 TRBZ (16TUR8): T1 tube O.D. 1", T2 tube O.D. 1/2" / 12-10 TRBZ (12TUR10): T1 tube O.D. 3/4", T2 tube O.D. 5/8" / 14-10 TRBZ (14TUR10): T1 tube O.D. 7/8", T2 tube O.D. 5/8" / 16-10 TRBZ (16TUR10): T1 tube O.D. 1", T2 tube O.D. 5/8" / 8-12 TRBZ (8TUR12): T1 tube O.D. 1/2", T2 tube O.D. 3/4" / 16-12 TRBZ (16TUR12): T1 tube O.D. 1", T2 tube O.D. 3/4" / 24-16 TRBZ (24TUR16): T1 tube O.D. 1-1/2", T2 tube O.D. 1" / 24-20 TRBZ (24TUR20): T1 tube O.D. 1-1/2", T2 tube O.D. 1-1/4" / 32-24 TRBZ (32TUR24): T1 tube O.D. 2", T2 tube O.D. 1-1/2" |