ZSi
ZSi / ALPHA SERIES
Designed for the tough jobs, the Alpha Series™ U-Bolt Assembly secures pipe
runs to any flat surface.
The cushion design provides total load distribution, allowing the U-Bolt to become a full contact hanger, eliminating knife-edge loading.
The U-Bolt traps and secures the cushion in place to prevent lateral movement, while nylon insert locknuts provide a positive lock.
Alpha Series™ U-Bolt Assembly conforms to MIL-S-901D for shock testing.
The cushion design provides total load distribution, allowing the U-Bolt to become a full contact hanger, eliminating knife-edge loading.
The U-Bolt traps and secures the cushion in place to prevent lateral movement, while nylon insert locknuts provide a positive lock.
Alpha Series™ U-Bolt Assembly conforms to MIL-S-901D for shock testing.
| Assy. Part No. | Pipe Size (Nom) | Tube Size O.D. | Dimensions (inches) | Torque | Design Load | Slip Through | |||||||
| A Dia. | B Radius | C | D | E | F | G | H | ||||||
| UB1/2PA | 1/2 | – | 0.840 | 0.80 | 1.60 | 1.50 | 0.67 | 0.68 | 1/4 | 1/4-20 UNC-2B | 100 | 485 | 500 |
| UB7/8TA | – | 7/8 | 0.875 | 0.80 | 1.60 | 1.50 | 0.67 | 0.68 | 1/4 | 1/4-20 UNC-2B | 100 | 485 | 500 |
| UB3/4PA | 3/4 | – | 1.05 | 0.90 | 1.80 | 1.60 | 0.78 | 0.68 | 1/4 | 1/4-20 UNC-2B | 100 | 485 | 500 |
| UB1TA | – | 1 | 1.00 | 0.90 | 1.80 | 1.60 | 0.78 | 0.68 | 1/4 | 1/4-20 UNC-2B | 100 | 485 | 500 |
| UB11/4TA | – | 1-1/4 | 1.25 | 1.02 | 2.05 | 1.70 | 0.91 | 0.68 | 1/4 | 1/4-20 UNC-2B | 100 | 485 | 500 |
| UB1PA | 1 | – | 1.31 | 1.02 | 2.05 | 1.70 | 0.91 | 0.68 | 1/4 | 1/4-20 UNC-2B | 100 | 485 | 500 |
| UB1 3/8TA | – | 1-3/8 | 1.375 | 1.02 | 2.05 | 1.70 | 0.91 | 0.68 | 1/4 | 1/4-20 UNC-2B | 100 | 485 | 500 |
| UB1-1/4PA | 1-1/4 | – | 1.66 | 1.27 | 2.55 | 2.10 | 1.08 | 1.24 | 3/8 | 3/8-16 UNC-2B | 150 | 1,220 | 500 |
| UB1-1/2PA | 1-1/2 | – | 1.90 | 1.40 | 2.80 | 2.20 | 1.19 | 1.24 | 3/8 | 3/8-16 UNC-2B | 150 | 1,220 | 500 |
| UB2PA | 2 | – | 2.37 | 1.67 | 3.35 | 2.50 | 1.45 | 1.24 | 3/8 | 3/8-16 UNC-2B | 150 | 1,220 | 500 |
| UB2-1/2PA | 2-1/2 | – | 2.87 | 1.95 | 3.90 | 3.00 | 1.69 | 1.24 | 1/2 | 1/2-13 UNC-2B | 200 | 2,260 | 500 |
| UB3PA | 3 | – | 3.50 | 2.27 | 4.55 | 3.30 | 2.00 | 1.24 | 1/2 | 1/2-13 UNC-2B | 200 | 2,260 | 500 |
| UB3-1/2PA | 3-1/2 | – | 4.00 | 2.52 | 5.05 | 3.70 | 2.25 | 1.24 | 1/2 | 1/2-13 UNC-2B | 200 | 2,260 | 500 |
| UB4PA | 4 | – | 4.50 | 2.50 | 5.50 | 3.90 | 2.50 | 1.24 | 1/2 | 1/2-13 UNC-2B | 200 | 2,260 | 500 |
| UB5PA | 5 | – | 5.56 | 3.25 | 6.56 | 4.50 | 3.03 | 1.24 | 1/2 | 1/2-13 UNC-2B | 200 | 2,260 | 500 |
| UB6PA | 6 | – | 6.62 | 3.87 | 7.75 | 5.40 | 3.56 | 1.44 | 5/8 | 5/8-11 UNC-2B | 250 | 3,620 | 500 |
| UB8PA | 8 | – | 8.62 | 4.85 | 9.82 | 6.40 | 4.56 | 1.44 | 5/8 | 5/8-11 UNC-2B | 250 | 3,620 | 500 |
| UB10PA | 10 | – | 10.75 | 6.08 | 12.16 | 7.70 | 5.68 | 1.65 | 3/4 | 3/4-10 UNC-2B | 275 | 5,420 | 500 |
| UB12PA | 12 | – | 12.75 | 7.13 | 14.25 | 8.70 | 6.68 | 1.65 | 3/4 | 3/4-10 UNC-2B | 275 | 5,420 | 500 |
| Part No. Suffix | Clamp | Cushion | Example |
| none | Electrogalvanized | Thermoplastic elastomer | UB1/2PA |
| 6 | Stainless Steel,Type 316 | Thermoplastic elastomer | UB1/2PA6 |
| N6 | Stainless Steel,Type 316 | Flame Retardant | UB1/2PAN6 |
| N | Electrogalvanized | Flame Retardant | UB1/2PAN |
| NH | Electrogalvanized | Flame Retardant Halogen Free |
UB1/2PANH |
| NH6 | Stainless Steel,Type 316 | Flame Retardant Halogen Free |
UB1/2PANH |
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WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |