Delta’s Pressure Regulating Valves (PRVs) are designed and manufactured to meet the BS5041 (High Pressure) standard, ensuring reliable performance in demanding applications. Constructed from gunmetal BS1400 LG2, these valves are ideal for marine environments and other harsh conditions.
Our PRVs are available with flanged or threaded inlets and either an integral 2½” Instantaneous female outlet or a 2½” BSP male outlet for easy compatibility with various international fittings.
Note: The photo shows a 2½” Instantaneous Female Outlet
✅ Selected models available with next day UK delivery.
Delta’s Pressure Regulating Valves – PRV’s are expertly designed to maintain uniform firefighting pressure across fire mains, ensuring optimal safety and performance. Ideal for high-rise buildings, they ensure constant pressure regardless of location, preventing over-pressurisation that could compromise safety.
These PRVs are also suitable for ring mains where normal pressure may exceed the safe operating limits of portable firefighting equipment. Constructed from corrosion-resistant LG2 Gunmetal, Delta PRVs are highly durable and perfectly suited for use in marine and other harsh environments
Delta’s Pressure Regulating Valves – PRV’s are expertly designed to maintain uniform firefighting pressure across fire mains, ensuring optimal safety and performance. Ideal for high-rise buildings, they ensure constant pressure regardless of location, preventing over-pressurisation that could compromise safety.
These PRVs are also suitable for ring mains where normal pressure may exceed the safe operating limits of portable firefighting equipment. Constructed from corrosion-resistant LG2 Gunmetal, Delta PRVs are highly durable and perfectly suited for use in marine and other harsh environments
Pressure Regulating Valves (PRVs) are fire hydrant system valves designed to automatically reduce and control outlet pressure to a safe, consistent level. They ensure that firefighters receive usable water pressure regardless of fluctuations in the incoming supply. Delta Fire PRVs are manufactured to BS5041 standards and are widely used in fire mains and hydrant systems.
They are needed to prevent excessive pressure that could damage hoses, couplings, or endanger operators. PRVs maintain stable operating pressure across the system, especially in high rise buildings or high pressure ring mains, ensuring safe and controlled firefighting performance.
Pressure Regulating Valves are typically installed on wet risers, fire mains, ring mains, and hydrant outlets in high rise buildings, industrial plants, marine environments, and offshore facilities. They are used wherever consistent outlet pressure is critical for safe firefighting operations.
Delta Fire PRVs are factory set to a normal outlet pressure of around 7 bar, but they are adjustable to suit site requirements. The regulating spring can be set across a defined operating range to match different system pressures and application needs.
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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
4.6 /5
out of 12 Reviews
Delta 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
4.6 /5
out of 12 Reviews
Ashley 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
4.6 /5
out of 12 Reviews
Great company, i order from these regular. Ashley very good at getting back to me, very knowledgeable.
Sharon Rowe
4.6 /5
out of 12 Reviews
Fantastic 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
4.6 /5
out of 12 Reviews
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
4.6 /5
out of 12 Reviews
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
out of 12 Reviews
Delta 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 12 Reviews
Ashley 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 12 Reviews
Great company, i order from these regular. Ashley very good at getting back to me, very knowledgeable.
Sharon Rowe
out of 12 Reviews
Fantastic 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 12 Reviews
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
out of 12 Reviews
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