{"id":10502,"date":"2026-10-16T16:23:14","date_gmt":"2026-10-16T07:23:14","guid":{"rendered":"https:\/\/www.dry-fog.com\/en\/?post_type=technical-report&p=10502"},"modified":"2026-10-16T16:58:34","modified_gmt":"2026-10-16T07:58:34","slug":"noz-pne-bimadaptor","status":"publish","type":"technical-report","link":"https:\/\/www.dry-fog.com\/en\/projects-technology\/technical-report\/noz-pne-bimadaptor\/","title":{"rendered":"BIM Series Pneumatic Spray Nozzles \u2013 Adaptor Selection Guide"},"content":{"rendered":"
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BIM Series<\/a> pneumatic spray nozzles include an adaptor. Use the guide below to select the appropriate adaptor based on your spray ON\/OFF control requirements, manual flow reduction needs, and inlet configuration.<\/p>\n

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Selection Flowchart<\/h3>\n
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\u25b6 Open the flowchart in a new tab (PDF)<\/a>
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Additional Tips for Adaptor Selection<\/h3>\n

NDB \/ UNDB \u2013 Manual Adjustment of Individual Nozzles<\/h4>\n

The needle valve knob allows you to manually reduce or stop the spray flow rate at individual nozzles on site, without adjusting the supply pressure. However, fine or repeatable flow adjustment is difficult.<\/p>\n

SNB \/ USNB \u2013 Simple Spray ON\/OFF Control<\/h4>\n

Spray ON\/OFF is controlled by switching the atomizing air ON\/OFF. An atomizing-air pressure of at least 0.2 MPa is required. This method is suitable when highly precise ON\/OFF control is not needed. Slight timing delays between air and liquid may cause coarser droplets when spraying starts or stops.<\/p>\n

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SPB \/ USPB \u2013 Precise, Responsive Spray ON\/OFF Control<\/h4>\n

A separate pilot-air supply (at least 0.2 MPa) enables more precise and responsive spray ON\/OFF control. Atomizing-air pressure can be below 0.2 MPa, allowing softer spraying with less droplet scattering. However, atomizing air continues to flow during spray-OFF periods, which may increase compressor electricity costs.<\/p>\n

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For detailed information on each adaptor, please refer to our Pneumatic Spray Nozzle Catalog (pp. 26\u201329)<\/a>.<\/p>\n

The video below explains the features of all eight adaptor types and how to choose the right one for your application.<\/p>\n

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