Foam Spray Nozzle
Foam sprinkler is the core component of foam fire extinguishing system, which is used to evenly spray foam mixture on the surface of fire source to extinguish liquid fire (such as oil, chemicals, etc.) by isolating oxygen, cooling and inhibiting vapor.
Fujian Haijing Fire Fighting Equipment Co., Ltd. is one of the leading manufacturers and suppliers of foam spray nozzle in China, also supports customized service. Please feel free to wholesale cheap foam spray nozzle from our factory.
Products Description
Foam sprinkler is the core component of foam fire extinguishing system, which is used to evenly spray foam mixture on the surface of fire source to extinguish liquid fire (such as oil, chemicals, etc.) by isolating oxygen, cooling and inhibiting vapor.
1.Classification of foam nozzles
Divided by structure
| Type | Characteristic | Applicable scenarios |
| Aspirating foam sprinkler | Produce high expansion and stable foam through the air intake hole, with high fire extinguishing efficiency | Oil tank area, airport, chemical plant |
| Non aspirating foam sprinkler | Direct injection of premixed foam solution, simple structure, suitable for low expansion foam | Protection of small storage tanks and mechanical equipment |
| Open foam sprinkler | No heat sensitive components, need to be linked to the rain shower system, all nozzles should operate simultaneously | Large warehouses and petrochemical facilities |
| Closed foam sprinkler | Containing glass balls or fusible alloys, opened separately after heating | Local protection |
2.Working principle
Mixed foaming: foam is formed inside or outside the nozzle by mixing water, air and foaming agent (such as extinguishing foam liquid or cleaning agent) in proportion.
Injection method: use pressure or special structure (such as reticulation and swirl design) to expand the mixture into foam, and spray to cover the target area.
3. Main types
Fire foam sprinkler
Purpose: To extinguish oil (Class B fires), chemical fires, etc.
Features: High temperature resistance, corrosion resistance
Scenario: Oil depots, chemical plants, airports, etc.
Clean/industrial foam sprinkler
Purpose: Vehicle cleaning, equipment decontamination, food processing line disinfection, etc.
Features: The density of foam can be adjusted, such as fan-shaped nozzle or rotary nozzle.
Use: stage effect, children's foam party, etc.
Features: High safety, soft and easy to dissipate foam.
4. Key advantages
Efficient coverage: foam can be attached to vertical or complex surfaces to improve fire extinguishing or cleaning effect.
Resource saving: compared with pure water, foam has less consumption and more lasting effect (such as isolating oxygen in fire fighting).
Environmental protection: some foaming agents can be biodegradable (such as environmentally friendly clean foam).
5. Precautions
Maintenance: Regularly clean the nozzle to prevent clogging (especially in industrial settings).
Adaptability: It is necessary to match the correct pressure and foaming agent type (such as alcohol resistance of fire foam).
Safety: Avoid inhaling or contacting high concentration chemical foam.
company information
Q&A
Q: What is the difference between foam sprinkler and ordinary sprinkler?
A:
✅ Ordinary nozzle (such as water mist nozzle): mainly sprays water or water mist, used for cooling, extinguishing (Class A fire) or dust removal.
✅ Foam nozzle: mixing water, air and foaming agent to produce foam, suitable for Class B fire (oil, chemicals) or special cleaning needs, with stronger coverage and adhesion
contact information
Pauline
WhatsApp/WeChat: +86-13332933886
Email: manager@sanjingfire.com
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