Solid-stream spray nozzle Viper STI

Tagline Always on the front line of fire

Overview The Viper STI is a spray nozzle designed for professional and industrial firefighting operations. It combines a hard-coated aluminum body with a massive protective rubber bumper featuring fixed bumper teeth to provide consistent spray patterns and a lightweight, corrosion-resistant construction. Available configurations include tip-only, pistol-grip and versions with a VIPER shut-off valve.

Key features

• Long-lasting basic spray nozzle optimised for industrial firefighting use
• Massive protective rubber bumper with fixed teeth to maintain consistent fog pattern quality
• Hard-coated aluminum body for reduced weight and improved corrosion resistance
• Cost-effective configuration options: tip-only, with pistol-grip, and with VIPER shut-off valve

Settings Twist-type shut-off tip with selectable pattern settings: straight stream, narrow fog and wide fog. A FLUSH mode expels debris from the nozzle to prevent pattern disruption or flow reduction.

Stream Pattern The spray pattern is adjusted by rotating the bumper, from the widest fog pattern (Full Fog – Protection) to narrow fog and straight stream. Fixed bumper teeth ensure repeatable, high-quality fog generation.

VIPER shut-off valve option Low-maintenance lever-operated shut-off valve available as an option on pistol-grip versions or as an inline valve for remote shut-off requirements.

Markings High-visibility reflective labels applied on the anodized aluminum body for clear identification in the field.

Foam compatibility The Viper STI can be used with foam when paired with inline foam inductors and low-expansion foam tubes.

Inlet connections Standard thread options:

• NST/NH Female
• NPSH/IPT Female
• BSP Female
• 2" BSP Male/Female

Couplings available on request: STORZ, BARCELONA UNE 23400, DSP/GUILLEMIN, UNI, NOR and GOST.

Batch number Pistol-grip and shut-off versions are marked with a batch number prior to leaving the factory for traceability.

Service and maintenance Minimal maintenance required if rinsed with clean water after use with foam or contaminated water. Maintenance kits available. TIPSA reserves the right to modify any specification without prior notice to meet or exceed evolving standards.

Technical specifications

• Model: Viper STI
• Brand: VIPER (TIPSA)
• Type: High-performance spray nozzle for professional/industrial firefighting
• Materials: Hard-coated aluminum body; massive rubber bumper with fixed teeth
• Nozzle settings: Straight stream, narrow fog, wide fog, FLUSH
• Configurations: Tip-only; pistol-grip; VIPER shut-off valve
• Standard inlets/threads: NST/NH Female; NPSH/IPT Female; BSP Female; 2" BSP Male/Female
• Couplings on request: STORZ; BARCELONA UNE 23400; DSP/GUILLEMIN; UNI; NOR; GOST
• Markings: Reflective labels on anodized aluminum
• Foam compatibility: Via inline inductors and low-expansion foam tubes
• Maintenance: Rinse with clean water after use with foam/contaminated water; maintenance kits available
• Traceability: Batch number marking on pistol-grip and shut-off versions