Grundfos DDC Data Booklet

Accessories for small dosing pumps up to 60 l/h
43
Accessories for dosing pumps
8
Injection units
Injection units connect the dosing line with the process
line. They ensure a minimum counterpressure of 0.7
bar and avoid backflow of the dosing liquid.
In general, they include:
• Injection pipe. PP, PVC and PVDF versions can be
shortened.
• Spring-loaded non-return valve with Tantal spring.
• Hose connection set: 4/6 mm, 6/9 mm, 6/12 mm,
and 9/12 mm.
• Pipe connection set: threaded, Rp 1/4", internal
thread (stainless steel).
Standard injection units
Dimensions
Fig. 36 Standard injection unit, PP, PVC, and PVDF
version
Fig. 37 Standard injection unit, stainless-steel version
Technical data
Injection units with lip valve
Injection units with lip valve are typically used to add
sodium hypochlorite solution to water with a high
carbonate content. The FKM lip prevents
crystallisation and blocking caused by alkali carbonate
reactions at the point of injection.
Dimensions
Fig. 38 Injection unit with lip valve
Technical data
TM04 8280 0411TM04 8281 0411
G 1/2
L 2
L 1
G 1/2
L 1
L 2
Max. flow rate
[l/h]
Max. pressure
[bar]
Material Dimensions
Product number
Body Gasket Ball
L 1
[mm]
L 2
[mm]
60
16
PP
FKM Ceramic 100 47 95730904
EPDM Ceramic 100 47 95730908
PVC
FKM Ceramic 100 47 95730912
EPDM Ceramic 100 47 95730916
PTFE Ceramic 100 47 95730920
PVDF
FKM Ceramic 100 47 95730924
EPDM Ceramic 100 47 95730928
PTFE Ceramic 100 47 95730932
100 Stainless steel PTFE Stainless steel 27 50 95730936
16 PVC
FKM Ceramic 300 47 95730940
EPDM Ceramic 300 47 95730944
PTFE Ceramic 300 47 95730948
TM04 8282 0411
G 1/2
L 1
L 2
Max. flow rate
[l/h]
Max. pressure
[bar]
Material Dimensions
Product number
Body Gasket Ball
L 1
[mm]
L 2
[mm]
60 16 PVC FKM Ceramic 55 59 95730964

Grundfos DDC Specifications

General

Brand	Grundfos
Model	DDC
Category	Water Pump
Language	English