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GW

DOVE-TAIL NOZZLES

GW series nozzles have been the worldwide standard in hot descaling mills for many years. They have undergone many improvements, specifically to the inner orifice profile, resulting in a very even distribution of the water jet impact onto the steel surface. Their typical design with a dove-tail coupling between the nipple and nozzle tip assures the correct nozzle alignment onto the spray manifold. Several nipple length values and a specific locknut allow for a wide choice of different assembly dimensions.

FEATURES

Flow Rate

lpm@140bar: 21.4 min / 159 max
gpm@2100psi: 5.62 min / 41.7 max

Materials

Body: AISI 303 s.s.
Insert: AISI 420 s.s. hardened
Tungsten carbide

Thread Connection

Dove-tail coupling
between nipple and nozzle tip

Applications

Performances

GWC
GWE
GWF
GWL
Code
Flow rate (lpm)
at different pressure values (bar)
22°
26°
30°
40°
80
140
200
240
300
400
2162 xx 16,2 21,4 25,6 28,0 31,4 36,2
2208 xx 20,8 27,5 32,9 36,0 40,2 46,5
2250 xx 25,0 33,0 39,5 43,3 48,4 55,9
2320 xx 32,0 42,3 50,6 55,4 62,0 71,6
2402 xx 40,2 53,2 63,6 69,6 77,8 89,9
2520 xx 52,0 68,8 82,2 90,0 101 116
2642 xx 64,2 84,9 102 111 124 144
2798 xx 79,8 106 126 138 155 178
2996 xx 99,6 132 157 173 193 223
3112 xx 112 148 177 194 217 250
3120 xx 120 159 190 208 232 268

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GW drawing in 2D (PDF)
GW drawing in 3D (STEP)
GW datasheet (PDF)

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Abbreviations
CL Jet deflection angle deg DU Liquid outlet dia mm RF Female thread inch
D Conventional orifice dia mm FF Flange outer dia mm RG Male thread inch
D1 Smallest free inside dia mm G Flange center-hole dia mm SQ Square bar size mm
DE Liquid inlet dia mm H,H1 Height mm W Weight gr, kg
DF Flange size inch L,L1 Length mm WS Wrench size mm
DIA Outside diameter mm NR Number of orifices
DN Flange nominal size mm QC Quickfit connection
How to make up the product code

Accessories & fittings
ZWW NIPPLE

ZWW series welding nipples have been designed for the assembling of GW descaling tips onto main manifolds.
The accurately machined dove-tail profile assures for precise alignment of the nozzle tip with respect to
the axis of the spray manifold. The contact area with the nozzle tip shows a surface machined to an accurate
finish to prevent leakage between nipple and nozzle tip. ZWW nipples are available in three length values
to match different dimensional requirements.

 

VAA CAP

The VAA 1001 B1B cap is designed for the proper assembly between ZB nipples and GW descaling nozzle tips.
The strong design assures for a safe operation under the high pressure values typically used in hot
descaling mill systems.

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