Compressible packers designed for exceptionally high injection pressures (+100 Bar) and, where applicable, high inflow of water that makes ordinary packers difficult to place in boreholes.
All packers have the front packer washer (washer against C/GX tip) welded to the packer tube, and the washer is conically designed to guide the packer rubber during tensioning.
A number of the variants shown here have slightly different steering rods in the front to facilitate placement in drillholes where large water flows occur in combination with standard or reinforced injection pipes.
We also have models of packers to place with the help of the drilling rig (Jumbon) in case of really large flows.
High-pressure packer (+100 Bar) where the conical front washer is welded to the packer tube. Max injection pressure is determined by friction of packer against borehole, anchoring of injection pipe *, and other components of injection equipment (packer pipe itself approved for 160 Bar).
Available with both C-tip and GX tip.
The table shows stocked dimensions, more models are available on request.
* Outer pipes must be securely anchored when high pressures above 100 Bar occur due to that locking washers themselves have not been tested for these injection pressures.
|
GMA part nr. |
GMA Model |
Drillhole Ø (mm) |
Outside Ø packer (mm) |
Work span |
Tightening torque (Nm) |
Max injektion pressure (Bar) |
Note |
|---|---|---|---|---|---|---|---|
| 9090967 | CSS60 | 60 | 57,5 | 59-62 | 120-150 | (+100 Bar) | C or GX-tip |
| 9090969 | CSS63 | 63 | 60,5 | 62-65 | 120-150 | (+100 Bar) | C or GX-tip |
High-pressure packer (+100 Bar) where the front washer is welded to the packer pipe and steering rods are mounted in the front of the packer (to make it easier to insert packs into drillholes at very high water flows out of drillholes).
Max injection pressure is determined by friction of packers against boreholes (especially in case of large water flows), anchoring of injection pipes *, as well as other components of injection equipment (packer pipes themselves approved for 160 Bar).
Steering rods are available in two designs, either with 4 pcs 6mm rods, or with 3 pcs 8mm rods. Let us know the desired design in connection with the order.
Note, this model with steering is only available with C tip.
The table shows stocked dimensions, more models are available on request.
* Outer pipes must be securely anchored when high pressures above 100 Bar occur due to that locking washers themselves have not been tested for these injection pressures.
|
GMA part nr. |
GMA Model |
Drillhole Ø (mm) |
Outside Ø packer (mm) |
Work span |
Tightening torque (Nm) |
Max injektion pressure (Bar) |
Note |
|---|---|---|---|---|---|---|---|
| 9090964 | CSS60-styrd | 60 | 57,5 | 59-62 | 120-150 | (+100 Bar) | 4st 6mm steering rods |
| 9090964-3x8 | CSS60-Styrd | 60 | 57,5 | 59,62 | 120-150 | (+100 Bar) | 3st 8mm steering rods |
| 9090965 | CSS63-styrd | 63 | 60,5 | 62-65 | 120-150 | (+100 Bar) | 4st 6mm steering rods |
| 9090965-3x8 | CSS63-styrd | 63 | 60,5 | 62-65 | 120-150 | (+100 Bar) | 3st 8mm steering rods |
High-pressure packer (+100 Bar) equipped with mechanical locking and front conical washer welded to packer tube.
This mechanical locking packer is designed with a mechanical cone that expands when the packer is tensioned. The cone itself is placed behind the packer rubber, which means that if the packer is pushed back by the injection pressure, the cone / locking will expand more and more and strive to lock the packer tighter. Area of use is at very high injection pressures (and then in combination with an anchored outer tube), and/or where bad rock may occur that requires additional locking in addition to the packer rubber.
Max injection pressure is determined by friction of packers against drillholes (especially in case of large water inflows), anchoring of injection pipes *, as well as other components of injection equipment (packer pipes themselves approved for 160 Bar).
This packer is available with both C and GX tips, please specify when ordering.
The table shows stocked dimensions, more models are available on request.
* Outer pipes must be securely anchored when high pressures above 100 Bar occur due to that locking washers themselves have not been tested for these injection pressures.
|
GMA part nr. |
GMA Model |
Drillhole Ø (mm) |
Outside Ø packer (mm) |
Work span |
Tightening torque (Nm) |
Max injektion pressure(Bar) |
Note |
|---|---|---|---|---|---|---|---|
| 9090760 | CSS60-mek | 60 | 57,5 | 59-62 | 120-150 | (+100 Bar) | C or GX-tip |
| 9090763 | CSS63-mek | 63 | 60,5 | 62-65 | 120-150 | (+100 Bar) | C or GX-tip |
High-pressure packer (+100 Bar) equipped with mechanical locking, conical washer welded to the packer tube and steering rods mounted in the front of the packer.
This mechanical locking packer is designed with a mechanical cone that expands when the packer is tensioned. The cone itself is placed behind the packer rubber, which means that if the packer is pushed back by the injection pressure, the cone / locking will expand more and more and strive to lock the packer tighter. Area of use is at very high injection pressures (and then in combination with an anchored outer tube), and/or where bad rock may occur that requires additional locking in addition to the packer rubber.
Steering rods in the front of the packer is to help to place packers / injection pipes when high outflow of water of the drillholes occure.
Max injection pressure is determined by friction of packers against drillholes (especially in case of large water flows), anchoring of injection pipes *, as well as other components of injection equipment (packer pipes themselves approved for 160 Bar).
Note, this model with steering is only available with C tip.
The table shows stocked dimensions, more models are available on request.
* Outer pipes must be securely anchored when high pressures above 100 Bar occur when locking washers themselves have not been tested for these injection pressures.
|
GMA part nr. |
GMA Model |
Drillhole Ø (mm) |
Outside Ø packer (mm) |
Work span |
Tightening torque (Nm) |
Max injektion pressure (Bar) |
Note |
|---|---|---|---|---|---|---|---|
| 9090764 | CSS60-mek +styrd | 60 | 57,5 | 59-62 | 120-150 | (+100 Bar) | 4 pcs 6mm steering rods |
| 9090765 | CSS63-mek +styrd | 63 | 60,5 | 62-65 | 120-150 | (+100 Bar) | 4 pcs 6mm steering rods |
Manual packer mounted directly on 1" inner tube to place in drillhole using the drill rig at extremely high water flow out of drillhole (rig pushes packer into drillhole).
Packer made with 1" inner tube can be made from Ø57mm up to Ø180-200mm, in the picture it is a packer for drillhole 63mm. For smaller dimensions, the same type of solution can be made with 1/2" inner tube.
Contact GMA for more information on what we can help with. See also Special products and Packers directly on the inner tube for similar solutions.
