GUIDANCE NOTES - TYPICAL DISCHARGE PIPE ARRANGEMENT

SAFETY DEVICE

(e.g. TEMPERATURE RELIEF VALVE)

METAL DISCHARGE PIPE (D1)

 

 

FROM TEMPERATURE RELIEF

 

 

TO TUNDISH

 

500mm MAXIMUM

 

 

TUNDISH

 

 

300mm

 

 

MINIMUM

 

 

 

DISCHARGE BELOW

 

 

FIXED GRATING

 

METAL DISCHARGE PIPE (D2)

(3.9d GIVES ALTERNATIVE POINTS

 

OF DISCHARGE)

 

FROM TUNDISH,

 

WITH CONTINUOUS FALL

FIXED GRATING

(SEE 3.9d i-iv & TABLE 1)

 

 

TRAPPED GULLY

SIZING OF D2 COPPER DISCHARGE PIPE FOR COMMON TEMPERATURE RELIEF VALVE OUTLET SIZES

VALVE

MINIMUM SIZE OF

MINIMUM SIZE OF

MAXIMUM RESISTANCE

RESISTANCE

ALLOWED, EXPRESSED AS A

CREATED BY

OUTLET

DISCHARGE PIPE

DISCHARGE PIPE (D2)

LENGTH OF STRAIGHT PIPE

EACH ELBOW

SIZE

(D1)

FROM TUNDISH

(I.E. NO ELBOWS OR BENDS)

OR BEND

 

 

 

 

 

22mm

up to 9m

0.8m

G1/2

15mm

28mm

up to 18m

1.0m

 

 

35mm

up to 27m

1.4m

 

 

28mm

up to 9m

1.0m

G3/4

22mm

35mm

up to 18m

1.4m

 

 

42mm

up to 27m

1.7m

 

 

35mm

up to 9m

1.4m

G1

28mm

42mm

up to 18m

1.7m

 

 

54mm

up to 27m

2.3m

5

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Redring DC3810 manual Guidance Notes Typical Discharge Pipe Arrangement

DC3810 specifications

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