Project Description
FLAT FAN NOZZLE
SHORT NOZZLES – MINI SIZE
The modern design of these nozzle offers the same advantage as the full size HW nozzles. In addition it makes possible to use a smaller pitch between the nozzles allowing for a higher impact value per unit length. The nozzle efficiency is enhanced by means of a carefully designed flow stabilizer, which minimizes turbulence due to sharp direction change at the inlet from the main manifold. Provision is also made for a filter to be mounted at the nozzle inlet, minimizing nozzle clogging and abrasion.
| 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 | – |
ASSEMBLY PARTS
WELDING NIPPLES
ZWA
HW nozzles can be assembled on a variety of different nipples, with the same inlet, but with different lengths. The precision machined nipple inlet port assures precise positioning of the nozzle flat fan jet to the specified offset angle value of 15° with regard to manifold center line. This makes it possible to obtain uniform impact distribution yielding better decaling results.
FLOW STABILIZER
XHW
The flow stabilizer is a critical component for proper descaling, by reducing flow turbulence losses, a larger fraction of the water flow energy can be used for generating impact on the surface to be descaled. The design consists of a cylindrical brass body with a polished inner surface, housing a cast stainless steel flow stabilizer which straightens the liquid path to minimize turbulences. Different length nipples are available, with or without inlet filter. The codes always include a multifin flow straightener.
LOCKNUTS
VAW A075 B1
VAW C075 B1
The VAW A075 B1 and VAW C075 B1 locknuts for ZWA series descaling nipples have been designed profiting from a large experience on the field. The sturdy design and the generous dimensions give the maximum protection to the nozzle and the nipple thread. One lucknut size fits all standard size ZWA series nipple of any length.
GASKET
VDA 20C1 T3
The VDA 20C1 T3 round gasket provides proper assembly between nozzle and nipple. One size fits all small size ZWA nipple types.
