27
3 Product Description
3.6.7 Technical data for NW48/70/89 sliding flange
Technical data for NW48/70/89 sliding flange
Fig. 3-27 Dimensions of the sliding flange of the GFI pilot burner
The flange is equipped with 4 grub screws to fix the outer tube in a defined
position. The pipe leadthrough contains an EPDM O-ring seal.
Material
Flange 1.4571 stainless steel, galvanized steel
O-ring seal EPDM
Temperature range -40 ... +120 °C (-40 °F ... 248 °F)
Pressure 1.0 bar (14.50 psi)
Weight NW48: 1.24 kg (2.73 lb)
NW70: 1.5 kg (3.30 lb)
NW89: 2.4 kg (5.29 lb)
Dimensions
b Flange plate thickness NW48: 10 mm (0,39 in)
NW70: 10 mm (0,39 in)
NW89: 15 mm (0,47 in)
D Flange diameter NW48: 140 mm (5,51 in)
NW70: 160 mm (6,29 in)
NW89: 190 mm (7,48 in)
d1 Outside collar diameter NW48: 70 mm (2,75 in)
NW70: 90 mm (3,54 in)
NW89: 115 mm (4,33 in)
d
2
Hole diameter NW48: 14 mm (0,55 in)
NW70: 14 mm (0,55 in)
NW89: 18 mm (0,70 in)
h Total height NW48: 25 mm (0,98 in)
NW70: 25 mm (0,98 in)
NW89: 30 mm (1,18 in)
k Hole circle diameter NW48: 110 mm (4,33 in)
NW70: 130 mm (5,11 in)
NW89: 150 mm (5,90 in)
DN Nominal diameter 48/70/89
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