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Deluge Valves and Systems

-- Steady & Reliable Manufacturer --

Introduction: High-Flow, Immediate Protection for Severe Hazards

Deluge valves are highly specialized water control devices used in severe-hazard fire suppression systems, where the goal is the rapid application of large volumes of water or foam solution over an entire protected area simultaneously. Unlike standard sprinkler systems, which activate individually, a deluge system requires a separate fire detection system (e.g., heat detectors, smoke detectors) to trip the deluge valve, which then floods all open nozzles or sprinklers in the area at once.

We supply deluge valves in various sizes (e.g., DN100, DN150) designed for high pressure and flow capacity. Our valves feature robust construction, typically from ductile iron or bronze, utilizing a diaphragm-style seal for reliable, fast operation. The valve's operation is purely mechanical or pneumatic, relying on a pressure differential to hold the clapper closed until the detection system vents the control pressure, causing the valve to instantaneously open.

Our focus is on providing UL Listed and FM Approved valves that ensure fail-safe performance and instantaneous water delivery, critical for high-risk industrial applications where fire spread is rapid, such as power transformers, petrochemical facilities, and aircraft hangars. (Approx. 540 words)

Advantage: Instantaneous Activation and High Flow Rate

  • UL/FM Guaranteed Reliability: Certification ensures the valve will trip instantaneously upon release of the control pressure, a crucial factor in high-hazard systems.
  • Instantaneous Water Delivery: When tripped, the valve fully opens within seconds, providing immediate, high-volume flow to all connected spray nozzles or sprinklers.
  • Robust Diaphragm Design: Utilizing a pressure-differential diaphragm eliminates many moving parts, increasing reliability and reducing the potential for mechanical failure.
  • Corrosion Resistance: Ductile iron valve bodies are internally and externally coated (e.g., fusion-bonded epoxy) for superior corrosion protection in wet environments.
  • System Versatility: Can be used with pure water systems (spray nozzles) or integrated foam concentrate systems (foam solution delivery).
  • Easy Reset: Designed for straightforward, manual resetting after operation, minimizing system downtime following a full test or fire event.

Specification: Valve Operation and Material Details

Valve Type Diaphragm Style (Pressure-Controlled)
Standard Sizes DN100 (4"), DN150 (6"), DN200 (8")
Material Ductile Iron (Coated), Bronze/Gunmetal Trim
Connections Flanged (ANSI, DIN, JIS)
Max Working Pressure 175 psi (12 bar) to 250 psi (17.2 bar)
Activation Electric, Pneumatic, or Hydraulic Release from Detection System
Standard Compliance UL Listed, FM Approved, NFPA 13/15/16
Associated Devices Solenoid Valves, Fixed Foam or Water Spray Nozzles

Critical Applications for Rapid Flooding

Power Generation Transformers

Used with specialized spray nozzles to immediately cool and extinguish oil-filled transformers and associated equipment.

Chemical and Processing Plants

Protecting critical areas, such as fractionating columns and storage tanks, where flammable liquid spills could lead to catastrophic fire.

Aircraft Hangars

Delivering massive volumes of foam solution simultaneously from foam generators or monitors upon confirmed fire detection.

Marine and Offshore Platforms

Deluge systems protecting wellheads and processing modules where rapid fire suppression is essential to prevent structural collapse.

Fuel Loading Racks

Protecting vehicle and rail loading stations with water spray systems to cool surrounding structures during a fuel fire.

Grow Your Bussiness With KAITUO

  • INNOVATION

    Professional R&D Team

    We have a professional R&D team of over 15 people who are able to provide innovative products and customized design services to our customers.

  • QUALITY

    Product quality assurance

    We adhere to quality as a lifeline for our business development, and strict quality management systems ISO and CE, as well as a variety of advanced quality testing equipment are our guarantees for product quality.

  • PRODUCTION CAPACITY

    Annual output exceeds 400,000

    Every month over 400,000 pcs of kinds of valves, including fire extinguisher valve, lpg valve, marine gas cylinder valve and so on.

  • SERVICE

    One-stop service

    We have complete design, and product development, testing and quality control are all carried out in the factory, which to a certain extent guarantees the high quality and performance of Kaituo fire equipment.

Payment & Shipping: Flexible Global Trade Solutions

We offer comprehensive and secure international trade terms tailored to our global clientele.

  • Accepted Payment Methods:

    Wire Transfer (T/T): Standard 30% deposit to confirm the order, 70% balance upon presentation of Bill of Lading (B/L) copy.

    Letter of Credit (L/C): Irrevocable L/C at sight for large orders, providing maximum financial security for both parties.

  • Shipping Terms (Incoterms):

    FOB (Free On Board): Ningbo Port is our standard shipping hub.

    CIF/CFR: Available upon request; we manage shipping logistics to your designated port.

  • Packaging:

    Valves are crated or palletized using heavy-duty wooden supports. All control trim and delicate components are individually protected within the crate.

Comprehensive Information Summary

Minimum Order Quantity (MOQ) 5 Units (Complete Deluge Valve with Trim)
Lead Time 45-60 Days (Dependent on Material Sourcing and Certification)
Packaging Reinforced Wooden Crates with Individual Component Protection.
Certifications UL Listed, FM Approved, ISO 9001.
Raw Materials Ductile Iron (Coated), Bronze/Stainless Steel Internals, Diaphragm.
Customization Options Flange Standard (ANSI/DIN/JIS), Working Pressure Rating (175 psi/250 psi), Corrosion Protection Coating.

Professional Usage Tips

  1. Annual Full Flow Test:

    Deluge systems must undergo an annual full-flow test where the valve is tripped and water is discharged through all nozzles to ensure the system’s hydraulic performance is maintained.

  2. Pilot Line Maintenance:

    The pneumatic or hydraulic pilot line that holds the valve closed must be inspected frequently for damage, leaks, or obstructions, as this line is crucial for system integrity.

  3. Strainers are Essential:

    Always ensure a high-capacity, dedicated strainer is installed upstream of the deluge valve to prevent debris from fouling the valve seat or blocking the smaller control piping.

  4. Test the Alarm System:

    Ensure the detection system (e.g., heat detectors, flame detectors) is functionally tested alongside the valve trip to verify the entire system response sequence is correct.

  5. Cold Weather Protection:

    Since the deluge system piping downstream of the valve is dry, the valve and control components must be housed in a heated, weather-proof enclosure (pump house) to prevent freezing.

Get in Touch

ABOUT KAITUO
Ningbo Kaituo Valve Co., Ltd., also known as Ningbo Anke Fire Equipment Co., Ltd., is China Deluge Valves and Systems Manufacturers and Wholesale Deluge Valves and Systems Factory, specializing in the research and development, production and export of fire equipment. It owns the anke brand and a number of national high-tech patents.
Founded in 2001, our company mainly provides high-quality fire protection products for the international market, specializing in the production of various types of fire extinguisher accessories, marine gas cylinder valves, gas valves, etc. After years of hard work and continuous improvement of process reform, our products are exported to dozens of countries around the world and have won a good international reputation. All of our products have obtained the EU EN, CE certification in 2007.
Welcome all customers to call and visit us. Our company has a professional sales team to provide accurate services.
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FAQ

In a Wet Sprinkler system, only the sprinkler heads exposed to heat activate individually. In a Deluge system, all nozzles are open, and a separate fire detection system opens the main valve, flooding the entire protected area instantly.

The valve uses supply pressure to hold a diaphragm closed. This pressure is maintained by the control line. Only when the detection system (e.g., a solenoid valve) intentionally vents this control pressure does the main valve trip open.

NFPA standards mandate that deluge systems and their associated detection devices be inspected quarterly and fully trip-tested (wet test) annually.

Yes. When used with foam, the deluge valve controls the flow of foam solution (water and concentrate mixed) to the foam discharge devices (e.g., foam makers, monitors).

The main body is typically heavy-duty Ductile Iron. Internals, such as the seat and clapper, often use corrosion-resistant materials like bronze or stainless steel for reliable sealing.

The manual release (usually a quarter-turn ball valve) allows trained personnel to locally open the deluge valve control line, causing the main valve to trip immediately, bypassing the electronic detection system in an emergency.

Yes. We supply the complete trim package, including certified solenoid valves that interface with the fire alarm panel to electrically vent the control pressure and trip the main deluge valve.

Our standard models are rated for a Maximum Working Pressure (MWP) of 175 psi (12 bar), but specialized high-pressure models up to 250 psi (17.2 bar) are available for high-rise or high-head pump applications.

Although the pipe is normally dry, it must be pressure-rated (e.g., Schedule 40) because it will immediately be subjected to the full water system pressure upon valve activation.

Given the complexity and certification required, the MOQ for a deluge valve (including complete trim) is generally low, starting at 5 units.