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Sample Equipment

Augers

Piston Sampler Downhole

Piston Sampler ( Surface Type)
Item Code PSS, This is used to take undisturbed samples in saturated sands or soft mud. It works on a similar principle as the fisherman's bait pump. As the stainless steel tube is pushed down using down force on the Casing Clamp (supplied) as well as the down force created by pulling on the rope attached to the piston and passing over the pulley mounted to the top of the sampler tube, the piston is pulled up the tube sucking in the sample into the tube. When the depth of sample is reached the rope is secured and the tube is pulled out of the hole. The length of the sampler tube is directly related to the depth of sample plus 450mm for mounting the clamp and the pulley. The sample is discharged by either pushing the piston with a rod or by removing the piston through the top and shaking the sample out into core trays (not supplied) or into the short removable sleeve supplied with the sampler. Available in 50mm, 62mm & 75mm OD and in lengths to suit (usually up to 3.5 metres). The manual force required to break the suction of the tube in the wet mud and the weight of the sample, restricts the length and diameter that can be sampled. Re-sampling in the same hole is usually not possible due to collapsing of the hole. Choose as small a sampler as is possible for your need.
Options: Size; Length; Spare O-rings.

Piston Sampler (down hole type)
Item Code PSDH, This type is similar to the surface except it has an attachment for extension rods to connect to the top, it does not come with a casing clamp and the piston can not be removed through the top. It is used when a sample is required from down an augered hole or from the bed of a body of water. Down force is applied via the extension rods and/or through a pulley attached to the T-Handle on the extension rods. The piston is pulled up using a rope attached to the piston. The piston cannot be removed through the top because of the welded fitting for the extension rods. Similar sizes to surface type, are available but the smaller the better.
Options: Size; Thread; Length of rope; Extension rods; T-Handle; Spare O-rings.

50mm x 1.0mtr Down Hole threaded, pulley & rope DORMER PSDH5010C

62mm x 1.0mtr Down Hole threaded, pulley & rope DORMER PSDH6210C

62mm x 1.5mtr Down Hole threaded, pulley & rope DORMER PSDH6215C

50mm x 3.0M casing clamp, pulley & sleeve DORMER PSS5030

75mm x 3.0M casing clamp, pulley & sleeve DORMER PSS7530

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