Triangle Fluid Controls Ltd.® Products

About Durlon® Gasket Materials

Economical & Premium Compressed Sheets

Inventory Reduction – Process Safety – Purchasing Efficiencies – Reduced Chance of Maintenance Error

Durlon® gasket materials are superior to other product offerings in areas that matter to the end user and gasket cutter, including:

  • Cut-ability
  • Consistency
  • Exacting tolerances

These features make Durlon® gasket materials easy on tooling for high speed or hand-cut projects. The anti-stick coating applied to the surface during the manufacturing process allows for improved separation from flange surfaces during removal, saving time and energy.

Wide range of use, excellent flexibility

Durlon® compressed gasket materials are high-density products featuring the most homogenous combination of minerals, synthetic fibers and elastomers. They are used in a wide variety of industries on a broad range of chemical applications at varying temperatures and pressures. Their excellent flexibility prevents large, narrow flange gaskets from breaking during cutting and installation, and their superior recovery ensures tight sealing during thermal cycling. Additional features include:

  • Close-range compressibility for consistency and accurate spacing
  • Reliability backed by many years of experience
  • Local distribution for quick and easy delivery
  • Branding for easy identification and assurance of genuine Durlon® gasket material helps prevent misapplication
  • All full-sized sheets are date coded and quality assurance traceable
  • A release agent on both sides of the sheet ensures good anti-stick properties
  • Durlon® filled PTFE and flexible graphite gasket materials complement our compressed sheet family by giving you the right gasket for all of your gasket needs.
Process Safety Management

Process safety is enhanced through outstanding sealability and bolt load retention:

  • Tighter joints create operational value
  • Emissions control
  • Energy consumption
  • Waste water treatment cost reductions
  • Best practices
  • Removes and handles with ease
  • Color coding for trouble-free identification, minimizes chance of misapplication

About DFT In-Line Valves

DFT Spring Assisted Silent Check Valves Prevent Water Hammer Problems

DFT silent check valves are known around the world as the valve to use to prevent or eliminate water hammer problems. Whatever your size, pressure or piping configurations, DFT has a check valve for you.
DFTproducts solve check valve problems and prevent check valve failures. DFT check valves meet specialized customer requirements, as opposed to simply meeting line size. In some cases, minor modifications to DFT valves have solved customer problems by improving performance and extending service life. The “Check Valve Doctor” continues to grow from satisfying these needs.

DFT In-Line Check Valve Features
  • Designed to prevent “Water Hammer”: Spring-assisted, in-line design insures that as the forward flow in a pipeline decreases, the disc begins moving closer to the seat. By the time the flow stops, the disc is closed against the seat, preventing flow reversal. This prevents the valve from slamming closed, causing “Water Hammer” and the resultant noise and damage to piping systems from occurring
  • Designed to open at 0.5 psi differential pressure and fully open at 1.0 psi differential pressure
  • Can be installed in ANY position: Including vertical with flow up or down. (Special springs may be required)
  • MSS SP 126-2000 Steel In-Line Spring-Assisted Center Guided Check Valves Standard: DFT carbon steel, stainless steel and alloy valves meet this standard. (Does not apply to the Basic-Check, Restrictor Check or Vacuum Breaker)
  • Meet or exceed MSS SP-61 leakage requirements: Metal-to-metal seating is standard in all DFT in-line check valves. Cast iron valves meet AWWA seat leakage requirements
  • Available with soft seats for bubble-tight shutoff
  • Dual guided stems: The stem is guided upstream and downstream to guard against vibrations and insure proper disc seating. (Does not apply to the Basic-Check, DLC, Restrictor Check, SCV or Vacuum Breaker)
  • Custom sizing available: The following DFT check valves can be sized to the appropriate flow conditions: Excalibur, GLC, WLC
  • Pulse-Damping Design: the DFT Model PDC is specifically designed for use on the discharge of reciprocating air or gas compressors. The design includes a pulse-dampening chamber to protect against premature seat wear due to chattering
  • Liquids, gas or steam: All DFT in-line check valves provide positive shutoff for applications involving liquids, gases or steam and can be used in most industries including oil and gas, petrochemical, pulp and paper, textiles, food and beverage and commercial construction. Applications include chemical lines, fluid injection, condensate recovery, steam, nitrogen, pump and compressor discharge, chiller and boiler feed systems. Cast Iron valves are recommended for liquid services only.
  • Maintenance and Installation guides: Available for all DFT in-line check valves.

Triangle Fluid Products Listed:

Check Valves

Metallic Gaskets