Elson Zircon 190 S Ind, Инструкция по установке и обслуживанию

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Table 03: Sizing of copper discharge pipe (D2) for common temperature relief valve outlet sizes
NOTE: The table below is based on copper tube. Plastic pipes may be of different bore and resistance. Sizes and
maximum lengths of plastic should be calculated using data prepared for the type of pipe being used.
VALVE OUTLET
SIZE
MINIMUM SIZE OF
DISCHARGE PIPE D1 MINIMUM SIZE OF
DISCHARGE PIPE D2
FROM TUNDISH
MAXIMUM RESISTANCE
ALLOWED, EXPRESSED
AS A LENGTH OF
STRAIGHT PIPE (I.E. NO
ELBOWS OR BENDS
RESISTANCE CREATED BY
EACH ELBOW OR BEND
G 1/2 15MM 22mm
28mm
35mm UP TO 9M
UP TO 18M
UP TO 27M 0.8M
1.0M
1.4M
G 3/4 22MM 28mm
35mm
42mm UP TO 9M
UP TO 18M
UP TO 27M 1.0M
1.4M
1.7M
G 1 28MM 35mm
42mm
54mm UP TO 9M
UP TO 18M
UP TO 27M 1.4M
1.7M
2.3M
600mm maximum
300mm
minimum
Safety device
(e.g. Temperature
relief valve)
Metal discharge pipe (D1) from
Temperature relief valve to tundish
Tundish
Discharge below
fixed grating
(Building Regulation
G3 section 3.61 gives
alternative points
of discharge)
Fixed grating
Trapped
gully
Discharge pipe (D2) from tundish,
with continuous fall. See Building
Regulation G3 section 3.56,
Table 03 and worked example
Figure 05: Typical Discharge Pipe Arrangment (Extract From Building Regulation G3 Guidance Section 5.50)