Overview
UTT18 U Lateral Bracing Clamp is heavy-duty QT450 ductile iron pipe clamp certified with UL & CE, acting as core pipe fixing part for complete lateral seismic bracing set. It matches with UTT series structural attachments and 1" SCH40 bracing pipe to assemble full anti-sway system, compliant with NFPA13 codes, applicable for Sch10, Sch40, GB/T3091, JIS G3454 standard fire sprinkler pipes ranging from 1.5 inch to 8 inch diameter。
Key Features
Core Function: Fix onto service pipe to form lateral seismic brace together with bracing pipe and structural fittings against pipeline seismic sway
Raw Material: QT450 ductile iron (higher impact resistance vs carbon steel UTT13)
Surface Finish: Electro-galvanized anti-corrosion zinc coating
Certification: UL & CE approval for full size 1.5''~8''
Applicable Pipe: 1-1/2"~8", Sch10/Sch40/GB/T3091/JIS G3454 steel sprinkler pipe
Installation Torque: Four nuts evenly tightened to 40~45N·M for locking
Product Parameter Table
| Item | Specification |
| Model | UTT18 |
| Raw Material | QT450 Ductile Iron |
| Surface Treatment | Electro-galvanized |
| Applicable Pipe Size | 1-1/2"(40mm) ~8"(200mm) |
| UL Rated Load | 680~1370lbs (3.02~6.09kN) |
| Unit Weight | 1.23~2.79lb(0.56~1.27kg) |
| Install Torque | 40~45 N·M |
| Support Brace Pipe | 1" SCH40 standard bracing pipe |
| Sample Supply | Free pre-order test samples available |
Application Scenarios
Fire Sprinkler System: Lateral anti-sway seismic fixing for medium & large diameter sprinkler piping in commercial buildings, shopping malls per NFPA13.
MEP & HVAC Engineering: Anti-seismic restraint for hot/cold water, drainage and ventilation steel pipelines.
Industrial Construction: Heavy-load seismic bracing fitting for factory, data center and high seismic zone building projects.
Step-by-Step Installation Guide
Mount UTT18 U-clamp around target pipeline, keep proper spacing away from pipe joints as construction standard.
Pass standard 1" SCH40 bracing pipe through clamp reserved opening to connect with structural attachment on building frame.
Install four fixing nuts on clamp bolts and uniformly torque up to 40~45N·M to complete locking.
Link opposite end of bracing pipe with UTT series seismic structural connector to finish full sway brace assembly.
Double-check tightness before pipeline hydraulic pressure testing.
Industry Certifications & Compliance
Full range UL & CE certification covering 1.5''~8'' pipe specification, passed third-party load test。
Designed and manufactured following NFPA13 seismic bracing specifications for fire protection system.
Electro-galvanized surface complies with ASTM B633 international anti-rust coating standard.
Each finished product undergoes factory dimensional inspection and mechanical load testing before delivery.
Core Product Advantages
High Toughness QT450 Ductile Iron Body
Better shock & crack resistance than carbon steel clamp, ideal for heavy-load seismic engineering scenarios。
Full-Size UL+CE Dual Certification
Dual certification meets US and European project acceptance requirements for global export orders.
Uniform Electro-Galvanized Anti-Corrosion Layer
Compact zinc coating prevents rust and extends service life in humid indoor environments.
Fixed 40~45N·M Standard Torque Mounting
Clear construction standard reduces on-site installation error and unifies construction quality.
Full Compatibility With UTT Series
Perfectly matched with all UTT seismic attachments, hinges and bracing accessories for complete bracing solution.
FAQ
Q1: What is UTT18 made of?
A1: Made of high-strength QT450 ductile iron with electro-galvanized finish, different from carbon steel UTT13.
Q2: Valid pipe range?
A2: Fits fire pipe size from 1-1/2 inch up to 8 inch.
Q3: Required tightening torque?
A3: Tight four mounting nuts evenly to 40~45 N·M.
Q4: Matching bracing pipe?
A4: Standard 1 inch SCH40 bracing pipe is required for assembly.
Q5: Free samples available?
A5: Free inspection samples can be supplied for quality check before bulk purchase.
