Web Menu

Product Search

Language

Share

Piping and Fittings (Fire Protection)

-- Steady & Reliable Manufacturer --

Introduction: Certified Conduit for Water Delivery

Fire protection piping and fittings form the backbone of any water-based suppression system (sprinkler, deluge, standpipe). Unlike standard plumbing, fire protection piping must withstand high pressures, corrosive conditions, and must be certified to NFPA standards for strength and reliability. We specialize in supplying steel pipe and fittings specifically manufactured and listed for fire suppression systems.

Our inventory includes Black Steel Pipe (Schedule 40/Schedule 10), commonly used for wet systems and standpipes, and Galvanized Steel Pipe for use in dry, pre-action, or corrosive environments. We provide various connection methods: Threaded, Grooved, and Welded. The Grooved fitting system, utilizing mechanical couplings, is highly popular for speed and flexibility in installation.

All products are manufactured to the correct tolerances (e.g., ASTM standards) and feature appropriate listings (UL/FM) to guarantee hydraulic performance and structural integrity, ensuring compatibility with all major sprinkler components and system designs. (Approx. 540 words)

Advantage: Certification, Durability, and Installation Speed

  • UL/FM Listed for Fire: Guaranteed compliance with fire codes, as pipes and fittings are specifically listed for use in fire protection systems (e.g., ASTM A795).
  • Grooved System Efficiency: Grooved fittings reduce installation time significantly compared to welding or threading, offering flexibility for alignment and easier maintenance access.
  • High Pressure Ratings: Piping systems are rated for high working pressures (175 psi minimum), ensuring structural safety and integrity under fire pump peak pressures.
  • Corrosion Protection: Options for galvanization or special red oxide coatings protect the pipe both internally and externally from environmental and residual moisture damage.
  • Comprehensive Inventory: Supplying a full range of pipe sizes, fittings (tees, elbows), and accessories (hangers, seismic braces) to complete any system design.
  • Seismic Resilience: Flexible grooved couplings provide necessary movement and stress relief in seismically active areas, meeting NFPA requirements.

Specification: Pipe Material, Connection, and Schedule

Pipe Material Black Steel Pipe, Galvanized Steel Pipe
Pipe Schedule Schedule 40 (Standard), Schedule 10 (Lightwall)
Nominal Size Range 1 inch to 12 inch (DN25 to DN300)
Connection Methods Grooved End, Threaded, Beveled End (for Welding)
Fittings Type Grooved Couplings (Rigid/Flexible), Elbows, Tees, Reducers
Pressure Rating 175 psi to 300 psi (Dependent on Schedule/Coupling)
Standard Compliance NFPA 13, UL Listed, FM Approved, ASTM A53/A795
Surface Finish Plain Black, Galvanized, or Red Oxide Coated

Infrastructure for Water-Based Systems

Commercial Sprinkler Systems

Schedule 40 Black Steel or Schedule 10 Grooved pipe used for main lines, risers, and branch lines in wet pipe systems.

Industrial Standpipes

Large diameter Schedule 40 pipe used vertically to transport water to hose stations in high-rise or large industrial complexes.

Dry and Pre-Action Systems

Galvanized steel pipe is mandatory for dry system branch lines and drops to prevent internal corrosion when exposed to air and moisture.

Outdoor Hydrant Connections

Heavy-duty underground piping (e.g., Ductile Iron or coated steel) is used to connect the pump house to the exterior hydrant loop.

Coastal or Humid Environments

All exposed piping and fittings are specified as galvanized or specially coated to resist external corrosion.

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:

    Pipe is bundled with steel straps. Grooved fittings and couplings are shipped in crates or heavy-duty cartons, clearly labeled by size.

Comprehensive Information Summary

Minimum Order Quantity (MOQ) 50 Tons (Pipe), 1,000 Pieces (Fittings)
Lead Time 50-80 Days (Raw Material Sourcing, Manufacturing, and Coating/Grooving)
Packaging Bundled Pipe, Palletized Fittings/Couplings, Clear Labeling.
Certifications UL Listed, FM Approved (Pipe and Couplings), ASTM A795/A53, ISO 9001.
Raw Materials Carbon Steel, Ductile Iron (Fittings), EPDM/Nitril Rubber (Gaskets).
Customization Options Pipe Schedule (Sch 10/40), Coating (Galvanized/Red Oxide), Pre-Fabrication (Cut/Grooved/Welded), Sealing Gasket Material.

Professional Usage Tips

  1. Use Only Listed Products:

    Ensure all pipe, fittings, and couplings bear the required UL/FM marks. Using unlisted components can void the entire system's certification.

  2. Groove Depth Check:

    When grooving pipe ends on-site, verify the groove dimensions (depth and distance from end) are within the coupling manufacturer's specifications to prevent joint failure.

  3. Thread Sealant:

    Use only non-flammable, approved thread sealants (pipe dope or tape) on threaded joints to ensure a watertight seal without compromising fire safety.

  4. Internal Pipe Cleanliness:

    Before system flushing, all pipes must be inspected for debris, rust, and foreign materials, as these can block sprinkler heads or compromise valves.

  5. Hydrostatic Testing:

    The entire piping network must be hydrostatically tested to 200 psi or 50 psi above working pressure (whichever is greater) before final system sign-off (NFPA 13).

Get in Touch

ABOUT KAITUO
Ningbo Kaituo Valve Co., Ltd., also known as Ningbo Anke Fire Equipment Co., Ltd., is China Piping and Fittings (Fire Protection) Manufacturers and Wholesale Piping and Fittings (Fire Protection) 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.
Read More

Certificate

  • Honor
  • Honor
  • Honor
  • Honor
  • Honor
  • Honor

FAQ

Schedule 10 is thinner, lighter-weight pipe often used for lighter hazard occupancy branch lines where pressure is low. It requires grooved connections for 2 inch and larger sizes.

Only specially listed CPVC (Chlorinated Polyvinyl Chloride) pipe can be used, and generally only in light hazard, non-combustible construction residential or limited commercial applications.

A flexible coupling allows for some linear and angular movement, which is essential for relieving stress and compensating for thermal expansion or minor seismic events.

Yes. Internal corrosion in wet systems can lead to pinhole leaks and pipe failure. Methods like using galvanized pipe in dry systems or Nitrogen inerting in wet systems are used to mitigate this.

ASTM A53 is a general steel pipe standard. ASTM A795 is specifically a standard for steel pipe intended and tested for fire protection use.

Pipe must be thoroughly flushed to remove metal shavings, debris, and scale, which can clog sprinkler heads upon system activation.

The MOQ for bulk steel pipe is generally high, starting at 50 to 100 metric tons (or several full containers).

Yes, we offer complete pipe pre-fabrication services based on your CAD drawings, including cutting, grooving, welding, and labeling, significantly speeding up on-site installation.

Most standard grooved couplings are rated for a maximum working pressure of 300 psi (20.7 bar).

Yes, in seismically active zones, fire piping requires specific lateral and longitudinal seismic bracing every 40 feet (12 meters) per NFPA 13 rules, which we also supply.