Metal Sprinkler Hose (FM, UL, VdS Approved) – Vanox
This article provides an in‑depth, SEO‑optimized explanation of stainless steel metal sprinkler hoses and connection sets used in modern fire protection systems. It covers FM Approved, UL Approved, and VdS Approved product groups, technical specifications, applications, material details, performance characteristics, and installation advantages. This long‑form technical content is written specifically for Vanox and optimized for WordPress publishing.
Introduction to Metal Sprinkler Hoses
Metal sprinkler hoses are flexible stainless‑steel hoses designed to connect fire sprinkler heads to the main pipeline in automatic fire suppression systems. When a fire breaks out, sprinkler heads detect the rise in temperature and automatically activate, spraying water onto the fire zone. This immediate response plays a critical role in extinguishing or containing fires before they grow uncontrollably.
Sprinkler systems are typically installed on ceilings to maximize coverage. Their elevated positioning ensures that water is distributed over the widest possible area. In commercial, industrial, and public buildings—where accessibility is limited and safety requirements are stringent—these systems are indispensable. Metal sprinkler hoses offer essential flexibility, reliability, and ease of installation compared to traditional rigid piping systems.
Why Flexible Metal Sprinkler Hoses Are Preferred
The use of flexible sprinkler hoses has grown significantly due to modern building requirements, seismic standards, and faster installation expectations. Their superior adaptability allows installers to eliminate complicated tasks such as cutting, threading, and aligning rigid pipes. Flexible hoses can be positioned quickly, reducing labor time and installation errors.
Additionally, the flexible structure absorbs seismic movements, providing a crucial safety advantage in earthquake-prone regions. By dampening vibration and movement, these hoses help maintain system integrity during building shifts or structural disturbances.
FM Approved Sprinkler Hose and Connection Set
FM Approved sprinkler hose assemblies comply with Factory Mutual (FM) fire protection standards, ensuring high performance, safety, and durability. They are widely used in critical facilities where compliance with international fire regulations is mandatory.
Product Description
FM Approved sprinkler hoses are designed to deliver water from the fire pipeline directly to the sprinkler head efficiently. The hose assembly is mounted on ceilings using dedicated installation kits, enabling quick alignment of the sprinkler at the desired location. These systems are particularly recommended for public spaces, where fire suppression must activate rapidly and effectively.
Materials
- Hose: AISI 316L stainless steel
- Braid: AISI 304 stainless steel
- Fittings: Carbon steel or stainless steel
- Fixing parts: Carbon steel
Connection Details
- Main pipeline side: Nipple connection
- Sprinkler side: Threaded special sprinkler connection parts
Technical Specifications
Technical Specifications
- Hose Diameter: DN25 (1”)
- Working Pressure: Up to 16 bar
- Bending Radius: Minimum 200 mm
- Application Area: Suitable for all types of buildings
UL Approved Sprinkler Hose and Connection Set
UL Approved sprinkler hose systems meet the standards defined by Underwriters Laboratories (UL), one of the most recognized safety certification authorities worldwide. These hoses are designed for reliability and consistent performance under challenging building conditions.
Product Description
The UL Approved hose set connects the sprinkler head to the fire pipeline, providing flexibility during installation and operation. Its robust construction ensures long-term durability even under high pressure or corrosive environments. These hoses are frequently preferred in industrial, commercial, and public buildings where strict fire safety regulations apply.
Materials
- Hose: AISI 316L stainless steel
- Fittings: Carbon steel or stainless steel
- Fixing Parts: Carbon steel
Connection Details
- Main pipeline side: Nipple
- Sprinkler side: Threaded special sprinkler fittings
Technical Specifications
- Hose Diameter: DN20 (3/4”)
- Working Pressure: Up to 16 bar
- Bending Radius: Minimum 200 mm
- Application Area: All types of commercial and industrial buildings
VdS Approved Sprinkler Hose and Connection Set
VdS Approved sprinkler hose assemblies meet the German VdS fire protection standards—among the strictest and most respected certification systems in Europe. These hoses are designed to provide exceptional reliability and operational safety.
Product Description
VdS sprinkler hoses work as flexible connectors between sprinkler heads and fire pipelines, ensuring secure and adaptable installation. Their ability to absorb seismic movement makes them ideal for use in high‑risk or high‑traffic buildings.
Materials
- Hose: AISI 316L stainless steel
- Braid: AISI 304 stainless steel
- Fittings: Carbon steel or stainless steel
- Fixing parts: Carbon steel
Connection Details
- Main pipeline side: Nipple
- Sprinkler side: Threaded special fittings
Technical Specifications
- Hose Diameter: DN20 (3/4”)
- Working Pressure: Up to 16 bar
- Bending Radius: Minimum 200 mm
- Application Area: All types of buildings
Advantages of Stainless Steel Sprinkler Hoses
Stainless steel flexible sprinkler hoses provide numerous functional and operational advantages. Their design solves many issues associated with rigid pipe systems, ensuring safer and more efficient installations.
- Absorbs seismic movement: Prevents damage during earthquakes or structural shifts.
- Reduced installation labor: Eliminates pipe cutting, threading, and sealing.
- Easy sprinkler alignment: Precise adjustment at any ceiling point.
- High temperature and corrosion resistance: Ensures long-term durability and safety.
- Flexible mounting kits: Allow vertical and angular adjustment.
- No need for re-alignment: Ceiling level changes do not affect sprinkler position.
Application Areas
Metal sprinkler hoses are used in a wide variety of structures, including:
- Shopping malls
- Hotels and public accommodation areas
- Hospitals
- Office complexes
- Industrial facilities
- Underground parking structures
- Concert halls, cinemas, and theaters
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