DELTA® NP Drain - Drainage sheet

DELTA® NP Drain - Drainage sheet

Delta Membrane Systems Ltd Third party certifications:
  • QA Certificate

    QA Certificate

    Certificate type

A high density polyethylene drainage sheet designed for use in underground structures including retaining walls, cut and cover tunnels, underground car parks etc.

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Description

A high density polyethylene drainage sheet designed for use in underground structures including retaining walls, cut and cover tunnels, underground car parks etc.

Features:

  • Comprises a grey polypropylene geotextile sheet bonded to a high-density, brown polyethylene (HDPE) drainage sheet with 8 mm height dimples.
  • The vertical drainage system combines high compressive strength with excellent drainage properties.
  • The integrated geotextile mat filters out suspended soil particles and ensures constant water drain-off through the air gap created by the dimple texturing.

General information

Material

Polypropylene, high-density polyethylene

Uniclass 2015

Pr_25_57_65_60 Plastics sheetsPrimary

CAWS

J40/295 Geocomposite studded cavity drainage/ venting membrane

Q37/350 Drainage layer

Specification data - Plastics sheets

Product Reference

Delta®-NP-Drain

Accessories

Delta®-Geo-Drain Clip

Attachment clip for fastening Delta®-MS-Profile.

Delta®-Plug

Nylon percussion plug for concrete or masonry.

Delta®-MS Knopf

Washer fastening.

Delta®-MS-Profile

Brown moulding cap to protect the upper edge of the sheet.

Standard product features

Technical data:

  • Complies with the requirements of EN ISO 9001.
  • Conforms to CE requirements and those of BS EN 13252, Certificate No. 0799-CPD-13.
  • Drainage rate: Approximately 2.25 L/s per metre.
  • Compressive strength (transient loading): Approximately 150 kN/m².
  • Compressive strength (permanent loading): Approximately 70 kN/m².
  • Installation depth (maximum): 7 m.
  • Service temperature range: -30°C to +80°C.
  • Delta® dimpled sheets are rot-proof, resisting saline solutions, inorganic acids, alkalines, and polar liquids.
  • They are proof against attack or modification by any of the minerals, humic acids, and bacterial catabolic products that naturally occur in the soil, as well as by bacteria, fungi, and micro-organisms.
  • The response of all sheet types to soil or underground water is completely neutral, nor will they leach any harmful and/ or ecologically doubtful substances.
  • Care should be taken to ensure that they are not permanently exposed to UV radiation.

Digital objects
Platform Compatible Version Certified to
Vectorworks
-

1.0

1.0

ARCHICAD
-

1.0

1.0

AECOsim
-

1.0

1.0

IFC

IFC2X3

8

1.3
Revit

Revit 2016

9

2.0
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Literature
Third party certifications
  • CE: Conforms to CE requirements and those of BS EN 13252 - Certificate No. 0799-CPD-13
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