The Parker CPI / A-LOK Buttweld Connector (ZHBW2 / ZHLW2) is a connector with a CPI / A-LOK tube connection and a pipe buttweld end. It comes in 16 size combinations with tube outer diameters from 1/8" to 1". CPI uses a single ferrule and A-LOK a double ferrule.
| Type | Buttweld connector: CPI / A-LOK tube connection and pipe buttweld end |
| Part Numbers | CPI 2-1/8 ZHBW2, A-LOK 2-1/8 ZHLW2 ~ CPI 16-1 ZHBW2, A-LOK 16-1 ZHLW2 |
| Connection Method | CPI: single ferrule / A-LOK: double ferrule |
| 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 |
| Pipe Buttweld End | The pipe buttweld end conforms to Schedule 80 unless otherwise noted |
| Sizes (inches): tube O.D., buttweld pipe size by CPI Part Number (A-LOK Part Number) | 2-1/8 ZHBW2 (2-1/8 ZHLW2): tube 1/8", buttweld pipe size 1/8" / 3-1/8 ZHBW2 (3-1/8 ZHLW2): tube 3/16", buttweld pipe size 1/8" / 4-1/8 ZHBW2 (4-1/8 ZHLW2): tube 1/4", buttweld pipe size 1/8" / 4-1/4 ZHBW2 (4-1/4 ZHLW2): tube 1/4", buttweld pipe size 1/4" / 5-1/8 ZHBW2 (5-1/8 ZHLW2): tube 5/16", buttweld pipe size 1/8" / 5-1/4 ZHBW2 (5-1/4 ZHLW2): tube 5/16", buttweld pipe size 1/4" / 6-1/4 ZHBW2 (6-1/4 ZHLW2): tube 3/8", buttweld pipe size 1/4" / 6-3/8 ZHBW2 (6-3/8 ZHLW2): tube 3/8", buttweld pipe size 3/8" / 6-1/2 ZHBW2 (6-1/2 ZHLW2): tube 3/8", buttweld pipe size 1/2" / 6-3/4 ZHBW2 (6-3/4 ZHLW2): tube 3/8", buttweld pipe size 3/4" / 8-3/8 ZHBW2 (8-3/8 ZHLW2): tube 1/2", buttweld pipe size 3/8" / 8-1/2 ZHBW2 (8-1/2 ZHLW2): tube 1/2", buttweld pipe size 1/2" / 8-3/4 ZHBW2 (8-3/4 ZHLW2): tube 1/2", buttweld pipe size 3/4" / 10-1/2 ZHBW2 (10-1/2 ZHLW2): tube 5/8", buttweld pipe size 1/2" / 12-3/4 ZHBW2 (12-3/4 ZHLW2): tube 3/4", buttweld pipe size 3/4" / 16-1 ZHBW2 (16-1 ZHLW2): tube 1", buttweld pipe size 1" |