Full Retention Separator

NSFP Range


Full retention separators are used in high risk spillage areas such as:
  • Fuel distribution depots
  • Vehicle workshops
  • Scrap Yards


Full_Retention_Separator_NSFP_Range Kingspan Environmental were the first UK manufacturer to have the required range (3-30 l/sec) certified to EN 858-1 in the UK.
The NSFP number denotes the flow at which the separator

The British Standards Institute (BSI) have witnessed the performance tests of the required range of separators and have certified their performance, in relation to their flow and process performance to ensure that they met the effluent
quality requirements of BS EN 858-1. Larger separator designs have been determined using the formulas extrapolated from the test range.

Each full retention separator design includes the necessary volume requirements for:
    • Oil separation capacity
    • Oil storage volume
    • Silt storage capacity
    • Coalescer (Class I units only)
    • Automatic closure device
Klargester full retention separators treat the whole of the specified flow.


  • Light and easy to install
    • Class I and Class II designs
    • 3-30 l/sec range independently tested and performance sampled, certified by the BSI
    • Inclusive of silt storage volume.
    • Fitted inlet/outlet connectors
    • Oil alarm system available
    • Vent points within necks
    • Extension access shafts for deep inverts
    • Maintenance from ground level
    • GRP or rotomoulded contruction (subject to model)

To specify a nominal size full retention separator, the following information is needed:-

    • The calculated flow rate for the drainage area served
    • Our designs are based on the assumption that any interconnecting pipework fitted elsewhere on site does not impede flow into or out of the separator and that the influent is not pumped.
    • The required discharge standard. This will decide whether a
    • Class I or Class II unit is required.
    • The drain invert inlet depth.
    • Pipework type, size and orientation.

contact_us to discuss your options


Sizes and specifications for the Full Retention Separators

Contact Us


03 544 4365    

16 Gladstone Road
Richmond, Nelson 7020

P.O.Box 3581,
Richmond, Nelson. 7050