catalogue - Düker GmbH & Co KGaA

5 Tapping
216
valves “TOP“ (vertical drilling)
and “TOPsi“ ( horizontal drilling)
for water PN 16
Construction: Tapping valve for mounting on pipes with diameters from DN 80 up to
DN 300. Suitable for tapping under pressure and useable for cast iron- as well as for steeland
asbestos cement pipes.
The clamping bands (Stainless steel, plastic coated) are packed as a unit together with all
necessary accessories and are allocated to the types and diameters of the pipes.
Technic: For tapping under pressure no auxiliary valve is necessary. The resilient flap of
type “TOP“ closes automatically after pulling back the drilling bar.
Maximum drilling diameter: 38 mm
Stem squares: 12 mm
Body inside and outside enamelled or epoxy coated.
Material: Body and plug made of ductile cast iron acc. to DIN EN 1563. Bonnet nut made
of brass. Stem made of stainless steel. Washer made of brass.
Obturator made of brass, gummed; flap made of steel, gummed. All gaskets made of high
quality elastomer.
Rubbering of wedge and flap: EPDM
Outlets: Internal pipe thread acc. to DIN 2999:
Rp 1, Rp 1 1 /4, Rp 1 1 /2, R 2
Types of clamping bands: see page 221
Field of application (water up to 60°C)
Water – test-pressure
bar
body seat
21 16
Max. operating pressure
bar
in case of operating temperature up to 70 °C
16
Dimensions and weights ( Dimensions in mm )
DN
80 –
300
L1
TOP
70,5
73,7
75,5
L
TOPsi
190
190
G
1 1 / 4 "
1 1 / 2 "
2"
Clamping bands and gasket are identical for TOP and TOPsi.
h 1
151,5
151,5
151,5
h 2
247
247
247
t
TOP
21
25
26
Connection
R 1 1 /4" – R 2 "
t
TOPsi
26
26
Connection
R 1 1 /4" – R 1 1 /2“
a
13
13
13
Weight in kg ≈
TOP TOPsi
9,0 6,4
8,6 6,3
9,5
5217