Made in the UK
Manufactured in the UK under an ISO 9001 Quality Management System the Delta Fire DFI Series of Fixed Inline Inductors are flow engineered to meet the specific requirements of the client. Designed to accurately proportion foam concentrate into a pressurised water supply providing an economic means of proportioning for systems requiring a fixed flow rate.
*Please note – We can offer Bespoke Variants on request:
Bespoke Flow Engineering
Flanged or Threaded Inlets/Outlets (all models)
Alternative Materials
Alternative Paint Options
Fixed Inline Inductors are foam proportioning devices designed to be permanently installed in a foam system to accurately mix foam concentrate into a pressurised water supply at a set flow rate. They are engineered to provide reliable foam proportioning with factory‑calibrated settings that deliver induction rates typically between 1 % and 6 %, making them suitable for fixed fire suppression systems and fixed foam delivery installations. Each unit is precision‑built and calibrated to the specific flow and pressure requirements of the system, and they are manufactured with durable materials for long‑term service with minimal maintenance.
Fixed Inline Inductors differ from portable foam inductors in that they are designed for permanent installation in fixed foam systems rather than being moved from place to place. Fixed units are calibrated at the factory to match specific system flows and pressures and are typically integrated directly into built‑in fire suppression infrastructure. Portable inductors, such as Delta’s Z‑Series, are simple, stand‑alone devices that can be connected to hoses on demand and moved between applications, whereas fixed inline units form part of a larger installed foam delivery system
Fixed Inline Inductors are typically installed in permanent foam delivery systems where reliable foam proportioning is required as part of ongoing fire protection. Common locations include fixed foam suppression systems for bulk fuel storage areas, plant and industrial facilities, loading bays, fixed hydrant systems, manufacturing sites, and other high‑risk installations where foam discharge devices are part of an integrated safety setup
Powered by
The 3 people I deal with most at Delta are Richard, Lisa and Ashley. They never let me down and are always ready to help and assist with any enquiries I have. Most importantly they understand that my business often has urgent inquiries that others dont and have always been very capable of competitive pricing and getting equipment to me in good time enabling me to meet very strict customer deadlines. Delta fire is highly recommended my me.
don Hawkins
4.5 /5 out of 11 ReviewsDelta Fire provide a great service. I often get enquiries from our customers and always need some help clarifying the specific types and sizes of fire safety equipment required. Delta are always there to help. I often deal with Ashley and he is always very helpful. Highly recommend.
Thomas Parker
4.5 /5 out of 11 ReviewsAshley and the team, are always happy to help and advise. All the orders we place with them are always dealt with in an efficient and professional manner. I wouldn't hesitate in recommending them. Mike Shakespeare - Hoseshop Ltd
Mick Shakespeare
4.5 /5 out of 11 ReviewsGreat company, i order from these regular. Ashley very good at getting back to me, very knowledgeable.
Sharon Rowe
4.5 /5 out of 11 ReviewsFantastic equipment and customer service. Would high recommend Delta Fire to any company looking for fire service equipment. After doing a lot of market research, I found and contacted Delta Fire to get more information about their equipment. Any questions I had where answered, they helped me look at my company's needs and pick which products where best suited. Extremely helpful. To add the very long warranty and that they are UK made is what separates the from the rest. Thank you guys for all your help. 10/10
thomas gallagher
4.5 /5 out of 11 ReviewsThe 3 people I deal with most at Delta are Richard, Lisa and Ashley. They never let me down and are always ready to help and assist with any enquiries I have. Most importantly they understand that my business often has urgent inquiries that others dont and have always been very capable of competitive pricing and getting equipment to me in good time enabling me to meet very strict customer deadlines. Delta fire is highly recommended my me.
don Hawkins
4.5 /5 out of 11 ReviewsThe 3 people I deal with most at Delta are Richard, Lisa and Ashley. They never let me down and are always ready to help and assist with any enquiries I have. Most importantly they understand that my business often has urgent inquiries that others dont and have always been very capable of competitive pricing and getting equipment to me in good time enabling me to meet very strict customer deadlines. Delta fire is highly recommended my me.
don Hawkins
out of 11 ReviewsDelta Fire provide a great service. I often get enquiries from our customers and always need some help clarifying the specific types and sizes of fire safety equipment required. Delta are always there to help. I often deal with Ashley and he is always very helpful. Highly recommend.
Thomas Parker
out of 11 ReviewsAshley and the team, are always happy to help and advise. All the orders we place with them are always dealt with in an efficient and professional manner. I wouldn't hesitate in recommending them. Mike Shakespeare - Hoseshop Ltd
Mick Shakespeare
out of 11 ReviewsGreat company, i order from these regular. Ashley very good at getting back to me, very knowledgeable.
Sharon Rowe
out of 11 ReviewsFantastic equipment and customer service. Would high recommend Delta Fire to any company looking for fire service equipment. After doing a lot of market research, I found and contacted Delta Fire to get more information about their equipment. Any questions I had where answered, they helped me look at my company's needs and pick which products where best suited. Extremely helpful. To add the very long warranty and that they are UK made is what separates the from the rest. Thank you guys for all your help. 10/10
thomas gallagher
out of 11 ReviewsThe 3 people I deal with most at Delta are Richard, Lisa and Ashley. They never let me down and are always ready to help and assist with any enquiries I have. Most importantly they understand that my business often has urgent inquiries that others dont and have always been very capable of competitive pricing and getting equipment to me in good time enabling me to meet very strict customer deadlines. Delta fire is highly recommended my me.
don Hawkins
out of 11 Reviewsor send us an email:
or send us an email:
