OPW Engineered Systems
OPW Style 78 Counterbalance Swivel Joints
Vendor: OPW Engineered Systems
Coupling Type: Industrial / Specialty Couplings & Accessories
Description:
Styles 78F - 78FFT - 78FO
Coupling Category:
Counterbalance Swivels
OPW Engineered Systems counterbalance swivels for both counterweighted loading arms (see Style 55) and torsion spring-balanced loading arms are available (Styles 56, 58, 76, and 78) to cover virtually any combination of riser orientation and swivel offset, including:
- Upfeed right hand
- Upfeed left hand
- Downfeed right hand
- Downfeed left hand
If you are uncertain as to which counterbalance replacement swivel to order, refer to your original loading arm design drawing or contact JGB.
| Material | Model | Size (inches) | Dimensions | |
| Flange x Flange Style 78F (DFRH*) |
Steel, Fabricated | 3478F | 2, 3, 4, 6 |  |
| Stainless Steel, Fabricated | 3978F | 2, 3, 4, 6 | |
|
| Material | Model | Size (inches) | Dimensions | |
| Flange x TTMA Flange Style 78FFT (DFRH*) |
Steel, Fabricated | 3478FFT | 3, 4 | |
| Stainless Steel, Fabricated | 3978FFT | 3, 4 | |
|
| Material | Model | Size (inches) | Dimensions | |
| Flange x Thread Style 78FO (DFRH, UFLH) |
Steel, Fabricated | 3478FO | 2, 3, 4 | |
| Stainless Steel, Fabricated | 3978FO | 2, 3, 4 | |
|
| Ductile Iron | 3878FO | 3, 4 |  |
* Left hand model available on special order. Consult JGB.
Steel & Stainless Steel Dimensions
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