The Torsion Spring Counterbalance Assembly
Model 756-F Panatagraph

- Dry line, top loading, pantagraph style assembly
- Extension ability up to 9'6" for standard arms
- Optional remote control handle
- Carbon steel, stainless steel & aluminum available
- Extended reach is available in the 1156-F series
- Torsion spring balance for closer mounting points
- Threaded or flanged connections throughout available
- Buna-N seals standard, others available
- Offered in both "o" ring and "v" ring swivel series
* Custom dimensions and configurations can be manufactured per project demands.
Standard Dimensions | ||||||||||||||
Size | "A" | "B" | "C" | "D" | "E" | "F" | ||||||||
in | mm | in | mm | in | mm | in | mm | in | mm | in | mm | in | mm | |
2 | 51 | 9.1 | 231 | 84 | 2134 | 24 | 610 | 48 | 1219 | 22 | 559 | 8.6 | 218 | |
3 | 76 | 10.2 | 259 | 84 | 2134 | 24 | 610 | 48 | 1219 | 23 | 585 | 10.6 | 269 | |
4 | 102 | 11.6 | 298 | 84 | 2134 | 24 | 610 | 48 | 1219 | 24 | 610 | 12.6 | 320 |
Model 755-F Fixed Reach

- Popular fixed reach top loading arm
- Optional remote control handle available
- Carbon steel, stainless steel & aluminum construction materials available
- Torsion spring balance for closer mounting points
- Threaded or flanged inner connections available
- Buna-N seals standard, others available
- Offered in both "o" ring and "v" ring swivel series
* Custom dimensions and configurations can be manufactured per project demands.
Standard Dimensions | ||||||||||||
Size | "A" | "B" | "C" | "D" | "E" | |||||||
in | mm | in | mm | in | mm | in | mm | in | mm | in | mm | |
2 | 51 | 9.1 | 231 | 120 | 3048 | 48 | 1219 | 8.6 | 218 | 22 | 559 | |
3 | 76 | 10.2 | 259 | 120 | 3048 | 48 | 1219 | 10.6 | 269 | 23 | 585 | |
4 | 102 | 11.6 | 298 | 120 | 3048 | 48 | 1219 | 12.6 | 320 | 24 | 610 |
Model 762-F Supported Boom Specifications

- The Model 762-F Top Loading Boom Assembly is a supported long range loading assembly designed for use in large transport loading where reach is a critical element.
- This top loader configuration is a heavy duty, heavy use, and high flow unit.
- A pillow block and cap assembly ties in the supported boom assembly to a fixed mounting rack point.
- The Model 762-F can be constructed with either 80 Series or 90 Series swivel joints
- The riser swivel joint is a standard 90 Series, but can be upgraded to either a split flange or Model 857 unit
- Standard Construction materials are carbon steel and aluminum, but stainless steel T-316 is available
- All connections are flange and thread, but can be altered according to desired specifications.
- Packing seal material is standard Buna-N with available Viton, Teflon®, Nitrile, Kalrez®, and Chemrez®.
* Custom dimensions and configurations can be manufactured per project demands.
Standard Dimensions | ||||||||||
Size | "A" | "B" | "C" | "D" | ||||||
in | mm | in | mm | in | mm | in | mm | in | mm | |
2 | 51 | 72 | 1829 | 78 | 1981 | 78 | 1981 | 48 | 1219 | |
3 | 76 | 72 | 1829 | 78 | 1981 | 78 | 1981 | 48 | 1219 | |
4 | 102 | 72 | 1829 | 78 | 1981 | 78 | 1981 | 48 | 1219 |
Model 763-F Unsupported Boom Specifications

- In conditions that do not permit a fully supported boom structure, the Model 763-F Unsupported Top Loading
- Assembly can replace the 762-F, allowing for similar boom coverage.
- The Model 762-F can be constructed with either 80 Series or 90 Series swivel joints
- The riser swivel should be a heavy duty unit capable of carrying increased loads due to the absence of a support boom structure (e.g. – OILCO split flange and Model 857 units)
- Standard Construction materials are carbon steel and aluminum, but stainless steel T-316 is available
- All connections are flange and thread, but can be altered according to desired specifications.
- Packing seal material is standard Buna-N with available Viton, Teflon®, Nitrile, Kalrez®, and Chemrez®.
* Custom dimensions and configurations can be manufactured per project demands.
Standard Dimensions | ||||||||
Size | "E" | "F" | "G" | |||||
in | mm | in | mm | in | mm | in | mm | |
2 | 51 | 48 | 1219 | 84 | 2134 | 60 | 1524 | |
3 | 76 | 48 | 1219 | 84 | 2134 | 60 | 1524 | |
4 | 102 | 48 | 1219 | 84 | 2134 | 60 | 1524 |
Model 754-F Flexible Hose

- Flexible hose bottom loading assembly
- Conforms to the requirements of the API envelope
- Stores in a limited space, out-of-service position
- Multiple units can be used in a cross-over condition
- Outlet swivel, spacer spool, and API coupler are additional optional equipment
- Standard optional outlet swivel is a Style 30, but can be upgraded to the Style 50 (both with handle)
- Carbon steel, stainless steel & aluminum available
- Torsion spring balance for closer mounting points
- Buna-N seals standard, others available
- Offered in both "o" ring and "v" ring swivel series
- Stainless Steel braided hose standard, but various composite material available by request
- The 2" loader is standard with threaded connections beyond the riser swivel joint
* Custom dimensions and configurations can be manufactured per project demands.
Standard Dimensions | ||||||||||||||
Size | "A" | "B" | "C" | "D" | "E" | "F" | ||||||||
in | mm | in | mm | in | mm | in | mm | in | mm | in | mm | in | mm | |
2 | 51 | 9.1 | 231 | 60 | 1524 | 72 | 1829 | 21 | 534 | 22 | 559 | 8.6 | 218 | |
3 | 76 | 10.2 | 259 | 60 | 1524 | 72 | 1829 | 21 | 534 | 23 | 585 | 10.6 | 269 | |
4 | 102 | 11.6 | 298 | 60 | 1524 | 72 | 1829 | 21 | 534 | 24 | 610 | 12.6 | 320 |
Model 754-FR Rigid Arm

- Rigid type bottom loading assembly
- Conforms to the requirements of the API envelope
- Stores in a limited space, out-of-service position
- Multiple units can be used in a cross-over condition
- Outboard swivel joint is a style 50 with handle
- Spacer spool and API coupler are optional equipment
- A maximum vertical angle of 85° is recommended for ease of operations and service
- Both 754 units are available as a vapor arm
- Carbon steel, stainless steel & aluminum available
- Torsion spring balance for closer mounting points
- Buna-N seals standard, others available
- Offered in both "o" ring and "v" ring swivel series
- The 2" loader is standard with threaded connections beyond the riser swivel joint
* Custom dimensions and configurations can be manufactured per project demands.
Standard Dimensions | ||||||||||||||
Size | "A" | "B" | "C" | "D" | "E" | "F" | ||||||||
in | mm | in | mm | in | mm | in | mm | in | mm | in | mm | in | mm | |
2 | 51 | 9.1 | 231 | 60 | 1524 | 60 | 1524 | 21 | 534 | 22 | 559 | 8.6 | 218 | |
3 | 76 | 10.2 | 259 | 60 | 1524 | 60 | 1524 | 21 | 534 | 23 | 585 | 10.6 | 269 | |
4 | 102 | 11.6 | 298 | 60 | 1524 | 60 | 1524 | 21 | 534 | 24 | 610 | 12.6 | 320 |
Model 752-F Bottom Transfer

- Fueling transfer loading assembly
- Five planes of rotation for complete coverage
- Loader adjusts for varying elevations and degrees
- Standard connection mount is ground level
- Carbon steel, stainless steel & aluminum available
- Torsion spring balance for closer mounting points
- Buna-N seals standard, others are available
- Offered in both "o" ring and "v" ring swivel series
- The secondary arm can be mounted in an upfeed or downfeed position as required by customer
- Multiple assemblies at varying heights can be used to maximize crossover conditions
- Ideal for use in rail car, tank truck, and aviation servicing and refueling centers
* Custom dimensions and configurations can be manufactured per project demands.
Standard Dimensions | ||||||||||||
Size | "A" | "B" | "C" | "D" | "E" | |||||||
in | mm | in | mm | in | mm | in | mm | in | mm | in | mm | |
2 | 51 | 9.4 | 239 | 66 | 1676 | 20 | 508 | 66 | 1676 | 6.8 | 173 | |
3 | 76 | 10.6 | 269 | 66 | 1676 | 24 | 610 | 66 | 1676 | 10.6 | 269 | |
4 | 102 | 13.8 | 351 | 66 | 1676 | 26 | 660 | 66 | 1676 | 12.6 | 320 |
Model 704-F Bottom Hose Loader

- Flexible hose bottom loader design
- Engineered for short range, cramped space use
- Outlet swivel, spacer spool, and API coupler are additional optional equipment
- Standard optional outlet swivel is a Style 30, but can be upgraded to the Style 50 (both with handle)
- Carbon steel, stainless steel & aluminum available
- Buna-N seals standard, others available
- Offered in both "o" ring and "v" ring swivel series
- Stainless Steel braided hose standard, but various composite material available by request
* Custom dimensions and configurations can be manufactured per project demands.
Standard Dimensions | ||||||||||
Size | "A" | "B" | "C" | "D" | ||||||
in | mm | in | mm | in | mm | in | mm | in | mm | |
3 | 76 | 10.2 | 259 | 52 | 1321 | 104 | 2642 | 21 | 534 | |
4 | 102 | 11.6 | 295 | 52 | 1321 | 104 | 2642 | 21 | 534 |
Model 774-FSJ Steam Jacket

- The only 100% fully jacketed loading assembly available to the industry
- It utilizes long radius internal elbows, making the entire assembly piggable for maintenance
- The Model 774-FSJ can be constructed as both a supported and unsupported unit, defined by load and dimensional characteristics.
- Stainless steel braided jumper hoses insure that steam circulation is progressive throughout the assembly, while a combination of rigid and flexible return lines provide passable movement of the steam charge.
- Available in either carbon steel or stainless steel material. Per customer requirements and budget restrictions, the material of construction can vary, provided connection points remain compatible.
- Packing seal material is standard Buna-N with available Viton, Teflon®, Nitrile, Kalrez®, and Chemrez®.
* Custom dimensions and configurations can be manufactured per project demands.
Steam Chamber Pressure Rating | 150 PSI |
Packing Seal Pressure Rating | 500 PSI |
Packing Seal Temperature Rating | 600oF MAX |
Model 786-LPG High Pressure

- All welded construction with full penetration welds
- 300# raised face, weld neck, inlet flange connection
- Schedule 40 seamless pipe with 3000# outlet coupling
- There is no loading valve in the standard design
- Buna-N seals standard, others available
- 90 Series "V" ring swivel joints provide maximum seal surface contact and service life
- Torsion spring counterbalance for ease of movement
- Construction material can be either carbon steel or stainless steel, T-316
- Standard reach is approximately 90 inches center to center, but dimensions can be altered to suit specific truck hook up positions
* Custom dimensions and configurations can be manufactured per project demands.
Standard Dimensions | ||||||||||||||
Size | "A" | "B" | "C" | "D" | "E" | "F" | ||||||||
in | mm | in | mm | in | mm | in | mm | in | mm | in | mm | in | mm | |
2 | 51 | 9.1 | 231 | 60 | 1524 | 60 | 1524 | 9 | 229 | 22 | 559 | 8.6 | 218 | |
3 | 76 | 10.2 | 259 | 60 | 1524 | 60 | 1524 | 10.3 | 262 | 23 | 585 | 10.6 | 269 | |
4 | 102 | 11.6 | 298 | 60 | 1524 | 60 | 1524 | 13.3 | 338 | 24 | 610 | 12.6 | 320 |