MCU14/0056 Response to SARA - Consulting Report

EN 858-1:2002 (E)

8.3.3.1.2 Test apparatus

The test apparatus shall be in accordance with:

— figure 5 and 4 and table 4 for separators with a nominai size < NS 100 and

— figure 5 and 6 for separators with a nominal size > NS 100.

The supply pipe between the collecting chamber and the separator shall have the same nominal diameter DN as
the inlet to the separator. For separators without combined sludge trap, having two inlet pipes, the supply pipe .
close to the collecting chamber shall be divided into two branch pipes each having a Jength of 2m. The cross
section of the supply pipe closest to the collecting chamber but before branching shall be equivalent to the total

cross section of the two branch pipes.

The test fluids shall be supplied by means of dosing pumps allowing appropriate flow control or by gravity. The flow

rate shall be constant during the test.

The outlet pipe(s) from the supply channel(s) shall be fitted with a stream regulating grid. The cross section of the
outlet pipe(s) shall be totally and uniformly charged with water. The bottom(s) of the outlet pipe(s) from the supply

channel(s) and light liquid supply pipe shall be at the same level.

Table 4 — Dimensions

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Nomina! size of separator a; dp ds hy he h bh
NS mm mm mm mm mm
Up to 6 400 | DN125 | DN12 500 | 200 | 1500 | 450
Over 6 to 30 1000: | DN300 | DN 25 800 | 300 | 2500 | 900
Over 30 to 100 1000 | DN400 | DN40 | 1350 | 300 | 2500 | 900
Dimensions in millimetres
1 i
a 2, 2
34 |
3
500max.

 

 

 

Key
1 Wall of separator

2 Internal diameter = 12,5

3 Nominal diameter of outlet pipe of the separator

DR

Figure 5 — Sampling device

 

 

 

 

 

 

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