Description
This replacement Goyen VNA45C-50 Blowtube Nozzle was designed to the same specifications and is guaranteed to fit/perform as well as the OEM
*All filters and items marked replacement are not affiliated or associated with the original manufacture. Part numbers and names are used for cross reference only.
All valve and repair kits are backed by a 100% money back guarantee against defects in materials and workmanship. In the event of a product failure, we will replace the affected kit at no additional cost.
For Genuine Goyen Valves and Parts please call 562-436-4228 or email us at info@industrialfiltrationinc.com
Diecast aluminium venturi nozzle assembly that clamps onto a 1.5" Schedule 40 blowtube, with a short barrel. The aluminium body takes it to 400°C (752°F), well past where the plastic nozzles stop, so this is the one for hot gas streams.
A GOCO nozzle balances the flow through every hole along the blowtube and aims the pulse jet squarely into the filter, so the pressure drop through the blowtube holes stops eating the pulse. That lets the system run at an An/Ap ratio (total blowtube hole area to blowtube cross section) of up to 1.5, where a blowtube with plain drilled holes typically manages only 0.5 to 0.8 – which is the difference between using the diaphragm valve’s full pulse and wasting most of it.
Order the insert separately. The nozzle and its insert are separate part numbers – the insert is what sets the orifice size. For example, VNA25C-50 with REG-14 gives a short 1" nozzle with a 14 mm plastic insert; VNA45C-100 with AL45-BD10 gives a long 1.5" nozzle with a 10 mm aluminium insert.
Before fitting: prepare a 27 – 28 mm (1.06 – 1.10") hole in the blowtube.
Setting the nozzle height. For best performance set H, the distance from the nozzle to the filter, using H = (Ø Filter − 48) / 0.353 in mm, or H = (Ø Filter − 1.88) / 0.353 in inches.
Not for gas turbine applications. Goyen specifically excludes the GOCO nozzle range from gas turbine service.
Inserts for this nozzle:
Other aluminium clamp-on sizes:
Cartridge filters:
- Goyen CC100 Cartridge Cleaning Cone
- Goyen CC150 Cartridge Cleaning Cone
- Goyen CC200 Cartridge Cleaning Cone
Listed in the Goyen GOCO Blowtube Nozzles and Cartridge Cleaning Cones product leaflet.



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