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Nelson Pipe Choke System, PCS

PCS Pipe Choke System

Brand: Nelson
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Nelson pipe choke system (PCS) is a prefabricated device used to seal penetrations and maintain the rating of fire rated floors and walls. 

The pipe choke is designed for penetrations of non-metallic pipes. When exposed to fire, the intumescent material expands to seal voids created from fire exposure on deteriorating penetrating items. 

The PCS consists of a heavy gauge metallic collar filled with a highly intumescent, pliable material.
Features
  • Easily installed and retrofitable. It does not require additional caulking.
  • Non-toxic, it has no hazardous ingredients, and is asbestos and solvent free.
  • To be used in combustible pipe firestopping penetration applications, for 1-1/2", 2", 3" and 4" (outside diameter) pipes.
  • It requires no special skills or tools for installation.
  • Choose the appropriate size of PCS to fit the penetrating pipes outside diameter. Flush mount it to the wall or floor surface using the mounting ears on the device.
  • Actual installation should be in accordance with the appropriate Nelson™ application system drawing.
  • Up to 3 hour rating.
  • It is highly intumescent.
  • It is VOC Compliant.
  • It has an unlimited shelf life.

Specifications

Brand

Application Temperature

  • +4° & +32° C (+40° & +90° F)

Density

  • 0.028 Grams Per Cubic Millimeter (1.4 lbs Per Cubic inch)

Intumescent Expansion Activation Temperature

  • Initial > +149° C (+300° F)

Limitations

  • It Should Not be Heavily Exposed To, or Come Into Direct Contact with Chemicals. Service Temperature Should Not Exceed +82° C (+180° F)

NEC/CEC Certifications & Compliances

  • Underwriters Laboratories Inc., Firestop Device for use in Through-Penetration Firestop Systems (XHJI), Factory Mutual (FM), City of New York, NY, Department of Buildings (MEA 173-99-M, MEA 196-84-M Vol. 3, MEA 236-87-M Vol. 2)

Test Compliance

  • Underwriters Laboratories Inc. UL 263 & ASTM E-119, Fire Tests of Building Construction & Materials. UL 1479 & ASTM E-814, Test Method for Through-penetration Firestop Systems

Testing Data

  • For Specific Test Criteria, Refer to the UL Fire Resistance Directory

Volume Increase

  • > 300 %

Documentation

Data Sheets

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