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Fire Department Connection Siamese Valve | Ductile Iron | UL/CE Certified | 6″ Outlet | Fire Protection

PRODUCT PARAMETERS

Body MaterialDuctile Iron (ASTM A536)
Inlet Type2 × 2.5″ Male Threaded (BS336) or 4 × 2.5″ (customizable)
Outlet TypeDN150 (6″) Flanged to BS4504 (or ANSI/DIN optional)
Maximum Working Pressure10 bar (1.0MPa)
Pressure RatingLow Pressure
Inlet Adapter & ValveBrass
Cover MaterialABS
Chain MaterialGalvanized Iron
CertificationsUL Listed, CE Marked, DIN Compliant
Description
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Description

Product Overview

The Fire Department Connection Siamese Valve is a fire department connection siamese valve (also known as fire inlet) designed for rapid supply of water or foam concentrate to building fire systems or tank areas. The body is constructed of high-strength ductile iron, with brass male inlets (conforming to BS336) and a DN150 (6″) flanged outlet (BS4504), rated at maximum working pressure 10 bar (1.0MPa). It is UL and CE certified, meeting international safety standards, and features high flow capacity, durability, and easy installation. Typical applications include airport firefighting, training foam systems, and hazardous chemical facility fire protection.

Fire Department Connection Siamese Valve

Technical Specifications

ParameterSpecification
Product NameFire Siamese Inlet Valve (4-Way Connection)
Body MaterialDuctile Iron (ASTM A536)
Inlet Type2 × 2.5″ Male Threaded (BS336) or 4 × 2.5″ (customizable)
Outlet TypeDN150 (6″) Flanged to BS4504 (or ANSI/DIN optional)
Maximum Working Pressure10 bar (1.0MPa)
Pressure RatingLow Pressure
Inlet Adapter & ValveBrass
Cover MaterialABS
Chain MaterialGalvanized Iron
CertificationsUL Listed, CE Marked, DIN Compliant
FunctionDurable, flexible, recyclable, easy installation, simple operation
ColorRed (standard)
CustomizationOEM/ODM (drawing/sample based)

Fire Department Connection Siamese Valve

Key Features

  • Ductile Iron Body – High strength and toughness, resists water hammer and mechanical shock, suitable for frequent use in fire emergency conditions.
  • Brass Male Inlets (BS336) – Corrosion-resistant and wear-proof, quick coupling with fire hoses, reliable seal, compliant with British standard fire connections.
  • High-Capacity 4-Way Design – Available with 2 or 4 inlets of 2.5″, significantly increasing total flow for rapid water supply in large fire systems.
  • Versatile Outlet Flange – Standard DN150 (6″) BS4504, with optional ANSI or DIN flanges to suit different piping networks.
  • International Certifications – UL, CE and DIN compliance, meeting strict quality requirements for global fire protection projects.
  • Lightweight & Easy Maintenance – Compact structure, ABS dust cap and galvanized chain prevent debris ingress, simple installation and inspection.
  • Customizable Inlet Configurations – Supports 2.5″ or 4″ inlet quantity and thread types for specialized fire water supply solutions.

Applications

  • Airport Firefighting – Rapid water or foam supply points for runways, aprons, and fuel depots.
  • Fire Training Foam Systems – Inlet connections for foam generation and delivery at training facilities.
  • Hazardous Chemical Sites – Emergency fire water supply for chemical plants, refineries, tank farms.
  • High-Rise Building Fire Connections – External supply inlet for building standpipe systems, enabling fire truck boosting.
  • Industrial Plants & Warehouses – Outdoor hydrant fill points for large workshops and logistics centers.
  • Municipal Fire Facilities – Quick-fill connections for fire water towers and fire reservoirs.

Fire Department Connection Siamese Valve

Packing and Shipment

  • Packing Method
    • Each valve individually wrapped in bubble film, with plastic caps on threaded inlets and flanged outlet.
    • Small quantities (1-5 units): packed in export-grade cartons with foam dividers; large quantities: in fumigation-free wooden crates or steel-framed boxes, securely fastened.
    • Outer cartons labeled with product tags, certification marks, and “Fire Equipment” warnings for customs and onsite identification.
    • Customized anti-rust and moisture-proof packaging for sea freight available upon request.
  • Shipment:Supported by sea, railway, air, or road transport to designated ports. Container loading and securing solutions provided to ensure safe transit. Long-term logistics partners ensure on-time delivery.

Payment Terms

  • T/T, L/C at sight, Western Union, PayPal, Credit Card, etc.

Company Profile

Luoyang Datang Energy Tech Co., Ltd is a professional industrial valve supplier, dedicated to providing reliable flow control solutions for water treatment, chemical, oil & gas, HVAC, and industrial piping systems worldwide. All products are manufactured to international standards with CE and ISO 9001 certifications. With over 10 years of experience, a modern facility of 80,000 m², and 200+ professional employees, we serve customers in 10+ countries with quality products, competitive pricing, and reliable delivery.

Fire Department Connection Siamese Valve

FAQ

1. How to choose inlet quantity and size?
Standard offers 2 or 4 male inlets of 2.5″ (BS336). Choose 2-way for general building connections; 4-way for large airports, petrochemical sites needing higher flow or multiple fire trucks connection. Other inlet sizes can be customized – please specify.

2. Can the outlet flange be changed to other standards?
Standard is BS4504 DN150. We also offer ANSI Class 150, DIN PN16 or JIS 10K flanges – please indicate required standard and pressure rating when ordering.

3. Is the product suitable for seawater?
Standard brass and ductile iron are suitable for fresh water. For seawater or saline environments, we recommend all-stainless steel or special coating (epoxy+polyurethane) versions for enhanced corrosion resistance. Custom solutions available.

4. Is 10 bar working pressure sufficient for fire pump boosting?
10 bar (1.0MPa) covers typical fire systems, pump outlet usually ≤1.2MPa. For higher pressure (e.g., super high-rise), we offer higher pressure-rated bodies (e.g., 16 bar) – please provide system pressure for proper selection.

5. Are caps and chains easily lost? Are spares available?
The ABS cap and galvanized chain are designed with anti-loss connection (chain links cap to body). Extra spare parts (caps, chains, seals) can be ordered separately as accessory kits.

Fire Department Connection Siamese Valve

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