U-BOLT

Dual-Function Pipe Restraint for Vertical & Horizontal Installations Engineered for Execution – Made in Egypt

Simple. Strong. Versatile. Engineered to secure piping to structural members while accommodating thermal expansion. When pipes need both support and freedom of movement—this is precision restraint done right.

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Material Grade A36 Mild Steel (A572 Grade 50 available on request)
Temperature Rating Up to 399°C (750°F) continuous service
Load Capacity Range 340 kg to 1800 kg (varies by pipe size and installation type)
Thread Specifications M8, M10, M12 threading with extended length for adjustment
Pipe Compatibility 1″ to 8″ steel pipe (DN25 to DN200)
Finish Options Electro-Galvanized (12-25μm), Hot-Dip Galvanized (55μm), Plain
Included Hardware 4 Grade 8.8 hex nuts per U-bolt
Standards Compliance Egyptian Mechanical Code, MSS SP-58 compatible
Installation Type Vertical support, horizontal restraint, or combination applications

Product Range & Load Capacities

Pipe Support & Restraint Applications

Product Code Pipe Size Pipe OD (mm) U-Bolt ID (mm) Thread Size Vertical Load (kg)* Restraint Force (kg)** Thread Length (mm)
NAC-UB-25 1″ (DN25) 33.4 45 M8 340 180 60
NAC-UB-32 1¼” (DN32) 42.1 55 M8 420 220 60
NAC-UB-40 1½” (DN40) 48.2 60 M10 480 260 70
NAC-UB-50 2″ (DN50) 60.3 75 M10 580 320 70
NAC-UB-65 2½” (DN65) 73.0 90 M10 720 400 80
NAC-UB-80 3″ (DN80) 88.9 105 M12 860 480 80
NAC-UB-100 4″ (DN100) 114.3 130 M12 1100 620 90
NAC-UB-125 5″ (DN125) 141.3 160 M12 1350 760 90
NAC-UB-150 6″ (DN150) 168.3 185 M12 1580 900 100
NAC-UB-200 8″ (DN200) 219.1 240 M16 1800 1100 120

Installation Hardware Included

  • 4 Grade 8.8 Hex Nuts per U-bolt (2 for locking, 2 for adjustment)
  • Nut Specifications: Matching thread size with proper torque ratings
  • Extended Threading: 60-120mm thread length for maximum adjustment flexibility
  • Quality Control: All hardware dimensionally verified and load-tested

Dual-Function Design Capabilities

Vertical Pipe Support Applications

  • Hanging Configuration: Supports pipe weight from overhead structural members
  • Load Transfer: Direct vertical load path through threaded legs to structure
  • Adjustment Range: Extended threading allows precise elevation control
  • Capacity: Full vertical load ratings as specified in capacity table

Horizontal Pipe Restraint Applications

  • Lateral Restraint: Prevents horizontal movement while allowing axial expansion
  • Thermal Accommodation: U-bolt design permits longitudinal pipe growth
  • Seismic Bracing: Horizontal restraint forces for earthquake resistance
  • Multi-Directional: Can restrain upward, downward, or sideways movement

Combination Support & Restraint

  • Complete Control: Simultaneous vertical support and horizontal restraint
  • Expansion Joints: Ideal placement near expansion joints and equipment connections
  • Guide Applications: Acts as pipe guide while providing structural support
  • Code Compliance: Meets requirements for both support and restraint systems

    Why New Age U-BOLT?

    Engineered Dual-Functionality System
    Designed to provide both structural support and movement restraint in a single component. Eliminates need for separate hangers and guides in many applications.

    Extended Threading for Field Flexibility
    60-120mm thread length provides maximum adjustment range for precise positioning and accommodation of field conditions. No field threading required.

    Egyptian-Made Structural Reliability
    Manufactured at our Abu Rawash facility using precision bending equipment and controlled heat treatment. Consistent dimensional accuracy ensures reliable load transfer.

    Complete Hardware Package
    Includes 4 Grade 8.8 hex nuts for proper double-nut locking configuration. Pre-matched components eliminate field compatibility issues.

    Thermal Expansion Engineering
    U-bolt geometry specifically designed to accommodate axial pipe movement while maintaining structural restraint in other directions.

    Professional Load Documentation
    Provides engineers with certified load capacities for both vertical support and horizontal restraint applications in structural calculations.

    Primary MEP Applications

    HVAC Distribution Systems
    Supporting and restraining chilled water, heating hot water, and steam lines where thermal expansion must be controlled while maintaining structural support.

    Fire Protection Piping
    Restraining sprinkler mains and standpipe systems for seismic compliance while allowing thermal movement during fire conditions.

    Process Piping Systems
    Industrial applications where piping operates at elevated temperatures requiring expansion accommodation with structural stability.

    Plumbing Waste & Vent Systems
    Supporting vertical soil stacks and horizontal waste lines with restraint against seismic forces and building movement.

    Installation Requirements & Procedures

    Structural Prerequisites

    • Support Capacity: Verify structural member can support concentrated U-bolt loads
    • Attachment Method: Use appropriate beam clamps, concrete anchors, or welded connections
    • Clearance Requirements: Maintain minimum 75mm clearance for nut access
    • Pipe Preparation: Ensure pipe surface is clean and free of sharp edges

    Professional Installation Steps

    1. Position Verification: Place U-bolt around pipe at calculated support location
    2. Structural Alignment: Align threaded legs with pre-drilled holes or mounting brackets
    3. Initial Assembly: Install first pair of nuts and hand-tighten to snug fit
    4. Load Transfer: Ensure full contact between U-bolt and pipe surface
    5. Double-Nut Installation: Apply second nuts and tighten to create jam-nut configuration
    6. Torque Application: Final torque per specifications (see table below)
    7. Movement Verification: Check that axial pipe movement is not restricted

    Installation Torque Requirements

    • M8 Nuts: 20-25 Nm
    • M10 Nuts: 35-45 Nm
    • M12 Nuts: 60-80 Nm
    • M16 Nuts: 120-160 Nm

    Thermal Expansion Accommodation

    Axial Movement Freedom

    • Pipe Growth: U-bolt design allows unrestricted longitudinal thermal expansion
    • Sliding Interface: Smooth galvanized finish reduces friction during expansion cycles
    • No Binding: Proper clearance prevents pipe binding during temperature changes
    • Expansion Joint Compatibility: Ideal for installation near expansion joints and equipment

    Restraint Direction Control

    • Vertical Support: Full load capacity in vertical direction
    • Lateral Restraint: Controlled horizontal movement restriction
    • Torsional Stability: Prevents pipe rotation and twist
    • Multi-Axis Control: Simultaneous control of multiple movement directions

    Installation Positioning Guidelines

    • Near Equipment: Install close to pumps, chillers, and other equipment connections
    • Direction Changes: Position at pipe bends and elevation changes
    • Expansion Joints: Place strategically relative to expansion joint locations
    • Anchor Points: Work in conjunction with fixed anchor points in system design

    Standards & Code Compliance

    Egyptian Standards

    • Egyptian Mechanical Code: Pipe support spacing and restraint requirements
    • Egyptian Building Code: Structural loading and seismic design provisions
    • Fire Safety Code: Requirements for fire protection system supports and restraints

    International References

    • MSS SP-58: Pipe hangers and supports selection and application guide
    • ASME B31.1/B31.9: Power and building piping support requirements
    • NFPA 13: Sprinkler system installation and seismic bracing standards
    • ASCE 7: Seismic design requirements for nonstructural components

    Quality Certifications

    • Material Certificates: Mill test reports for steel grades and mechanical properties
    • Load Testing: Proof load verification for vertical and horizontal capacities
    • Coating Standards: ASTM B633 (electro-galvanizing), ASTM A153 (hot-dip galvanizing)
    • Manufacturing Quality: ISO 9001:2015 certified production processes

    What You Get

    One U-Bolt Assembly (precision-bent to specified pipe diameter)
    Four Grade 8.8 Hex Nuts (proper hardware for double-nut installation)
    Extended Threading (60-120mm adjustment range for field flexibility)
    Load Documentation (certified capacities for vertical and horizontal applications)
    Installation Guide (proper procedures for support and restraint applications)
    Technical Support (engineering assistance for thermal expansion calculations)

    Selection Guide & Application Examples

    Standard HVAC Application

    • System: 4″ chilled water main
    • Requirements: Vertical support with thermal expansion accommodation
    • Selection: NAC-UB-100 with electro-galvanized finish
    • Installation: Double-nut configuration allowing axial pipe movement

    Fire Protection Restraint

    • System: 6″ sprinkler main with seismic bracing
    • Requirements: Horizontal restraint with vertical support
    • Selection: NAC-UB-150 with hot-dip galvanized finish
    • Installation: Combined with lateral bracing for complete restraint system

    High-Temperature Process

    • System: 3″ steam line at 350°C
    • Requirements: Support with significant thermal expansion
    • Selection: NAC-UB-80 Grade A572 material with plain finish (customer painting)
    • Installation: Strategic positioning relative to expansion joints

    Major Project Applications

    Egyptian Opera House – HVAC and fire protection system supports with thermal expansion control
    New Capital Mixed-Use Development – High-rise MEP systems with seismic restraint requirements
    Military Complex Facilities – Critical system supports with enhanced load requirements
    Upper Egypt Infrastructure – Commercial building MEP systems with thermal cycling
    Healthcare Facilities – Medical gas and HVAC systems requiring precise movement control
    Industrial Projects – Process piping with high-temperature thermal expansion requirements

    MEP Engineer Testimonials
    “Dual functionality eliminates coordination between support and restraint systems. One component handles both requirements.” – Senior MEP Engineer, Leading Design Firm

    Contractor Feedback
    “Extended threading gives us field adjustment flexibility. Four nuts included means no hardware compatibility issues.” – MEP Installation Contractor, Major Egyptian Construction Company

    Technical Support & Engineering Services

    Design Assistance

    • Load Calculations: U-bolt selection based on pipe loads and restraint forces
    • Thermal Analysis: Expansion calculations and positioning recommendations
    • Structural Requirements: Support member capacity and attachment specifications
    • Custom Solutions: Special sizes, materials, or configurations for unique applications

    Project Support Services

    • Quality Inspection: Verification of installation and load transfer
    • Technical Documentation: Installation records and load verification reports
    • Engineering Review: Thermal expansion and restraint system design verification

    Field Support: Assistance with complex installations and system integration

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