MCU14/0056 Response to SARA - Consulting Report

EN 858-1:2002 (E)

3.11

maximum operational liquid level

highest level of liquid at the flow, corresponding to the nominal size and after reaching the storage capacity for light
liquids

3.12
automatic warning device
device to warn of excessive depth of light liquid or waste water or low level condition

3.13

bypass separator

separator with a device, which allows a flow in excess of the maximum permissible effluent flow to bypass the
separator

3.14

coating/lining
a protective layer on a separator component

4 Classes of separators

There are two classes of separators as shown in table 1.

Tabie 1 — Classes of separators

 

 

 

Class | Maximum permissible content of | Typical separating technique (for example)
residual oil#
mg/l
I 5,0 Coalescing separators
li 100 Gravity separators

 

 

 

a When tested in accordance with 8.3.3.1 and samples being analysed for their hydrocarbon
content using infrared spectroscopy in accordance with A.2 and A.3.

 

 

 

5 Nominal sizes

The preferred nominal sizes of separator systems for light liquids are: 1,5, 3, 6, 10, 15, 20, 30, 40, 50, 65, 80, 100,
125, 150, 200, 300, 400 and 500.

6 Requirements

6.1 General

E) Separator systems for light liquids and their separate components shall be in accordance with the ‘material
requirements specified in 6.2.

6.2 Materials
6.2.1 General
Separator systems may be constructed from:

~—— unreinforced concrete, fibre-reinforced concrete, reinforced concrete;

— metallic materials: cast iron, stainless steel, steel; .
8 This is a licensed reproduction produced by SAI Global Ltd, an authorized distributor of British Standards