Product Product subtotal Quantity Price Product subtotal
Prepack Screen 50mm
Prepack Screen 50mmM109
Prepack Screen 50mmM109
$165.00/ea		 $0.00
$165.00/ea $0.00
1 1

Prepack Screen 50mm

Prepack Screen 50mm

A pre-pack screen is a groundwater monitoring well screen that comes with the filter sand already attached around the outside of the screen.

Normally, when installing a monitoring well, you would:

  1. Install the PVC screen.
  2. Pour filter sand around the screen.
  3. Add bentonite above the sand.

With a prepacks, the filter sand is already wrapped around the screen and held in place by a mesh and outer sleeve. This means you don't need to place the filter sand separately in the field.

In simple terms: A pre-pack screen is a monitoring well screen with the filter pack already built onto it, making installation quicker and helping ensure a consistent filter around the screen.

Why they're used:

  • Faster installation.
  • Useful in difficult boreholes where placing sand is challenging.
  • Provides a uniform filter pack around the screen.
  • Reduces the chance of bridging or gaps in the filter sand

When to use prepacks and why choose them over traditional screen? Read here

Specifications:

  • Overall Length: 1550mm
  • Internal Diameter (ID): 50.45mm
  • Outside Diameter (OD): 60.40mm
  • Material: 50mm Class 18 PVC with woven stainless steel mesh
  • Mesh Type: 60 mesh plain weave
  • Wire Diameter: 0.16mm
  • Mesh Aperture: Approximately 0.263mm
  • Slot Dimensions: 0.5mm aperture
  • Tube Height: 1,460mm
  • Finish: Weld to cylinder on overlap, cut ends
  • Overall Assembled OD: 71.12mm; not greater than 78mm
  • Clamps: Preformed Stainless Steel (Grade 201) with vibration-resistant lip wrap lock design
  • Gravel Pack: 2mm graded sand
  • Prewashed: Yes

Key Features:

  • High-Quality Mesh: Woven stainless steel mesh with 60 mesh plain weave for excellent filtration and durability.
  • Durable PVC Construction: 50mm Class 18 PVC tube ensures strength and reliability.
  • Secure Assembly: Features vibration-resistant stainless steel clamps and a well-finished overlap weld.
  • Efficient Filtration: The 0.5mm slot dimensions and gravel pack ensure effective filtration and well integrity.
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