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Premium Heat Exchanger Refurbishment Solutions from Imatech

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Imatech’s  Premium Heat Exchanger Refurbishment Solutions use good materials and components to deliver a total package of improvements to heat exchanger availability and performance.

Flange Live Loading (Bolted Heat Exchanger and Pipe Flanges)

  • Maintains a load on the gasket, above the minimum needed to seal, regardless of the temperature
  • Eliminates leakage problems caused by thermal cycling, vibration and pressure surges

Technical specifications:

  • Service: high temperature flanges in non-corrosive service
  • Temperature: to 595ºC (1100ºF) maximum
  • Material: H13 Chromium steel with oxide coating
  • Colour: black
  • Imatech Premium Grade Nickel Anti-Seize is used to ensure correct torque reading

ARC Ultra Resistant Corrosion Protection

  • Eliminates the use of sacrificial anodes
  • Downtime reduction: plant availability extended to 5+ years
  • Good permeation and blister resistance in high temperature water applications including acids and alkalis
  • High gloss surface reduces drag, improves fluid flow efficiency

Technical specifications:

  • Cured density - 1,6 g/cc (100 lb./ cu. ft)
  • Flexural strength (ASTM D 790) 560 kg/cm2 (8,000 psi)
  • Linear coefficient of thermal expansion (ASTM C 531) 4,6 x 10-5 cm/cm/°C (2.6 x 10-5 in/in/°F)
  • Cathodic disbondment (ASTM G 8) Passes 60 days
  • Salt fog - scored panels (ASTM B 117) No rust > 10,000 hours
  • Maximum temperature (dependent on service)

Steel Trap Gaskets

  • Ideal graphite and metal containment seal

Technical specifications:

  • Bolt force focused for a T-3 leak tight seal that does not relax under thermal cycling
  • Temperature: -200ºC to 648ºC (Steam) -200ºC to 3,000ºC (Inert)
  • Vacuum to 407kg/cm² (5,800 psi)
  • pH 0-14.
  • API 607 and exxon fire test
  • Safety Items - 10CFR50B. Meets EPA requirements

Tube Plugging Systems

  • Safer than taper pins
  • No tube or tube sheet damage
  • Reduces inventory because of high plug expansion range

Technical specifications:

  • Rated up to 480 bar @ 370ºC.
  • Helium leak tight to 1x10¯¹ºcc/sec
  • Quality Assurance System: meets requirements of ANSI 45.2, 10CFR50 Appendix B, 10CFR21 and is certified to ISO-9001
  • Reduces inventory because of high plug expansion range

GripTight High Pressure Test Plug

  • Used to test open-end pipe and tube
  • Safe to use
  • High pressure performance
  • Eliminates weld caps
  • Easy to maintain
  • Quality assurance system

Technical specifications:

  • Pressure on plug squeezes grippers tighter; plug can not be ejected under pressure when properly installed
  • Have been used for pipe burst tests in a manufacturing environment. Tests at higher pressure with greater safety, typically to 80% of yield
  • No welding or cutting required. Speeds fabrication testing, reducing test times up to 80%
  • Ensures retraction of gripper segments
  • Replacement seals and grippers readily available and easy to replace
  • Super stock: 1/2” to 12” in Sch 40 and 80 (DN25 to DN200) sizes are usually in stock
  • Optional seals: Viton, Silicone, EPDM
  • Meets requirements of ANSI N45.2, 10CFR50 Appendix B, 10CFR21 and is certified to ISO-9001

Tube Testing Systems

  • Interchangeable seal and washer sets
  • Light weight
  • Uses standard plant air supplies from 40 to 125 psi (2.7 to 8.5 bar)
  • Standard seal material
  • Quality assurance system

Technical specifications:

  • Allows testing of tubes from .28” to 1.23” (7.1 to 31.2mm) ID
  • Each gun weighs less than 2.1 lb (1kg)
  • Sizes 0.28-0.48 are limited to 40-60 psi
  • Neoprene, Viton optional
  • Meets requirements of ANSI N45.2, 10CFR50 Appendix B, 10CFR21 and is certified to ISO-9001

Straight-Through Testing

  • Interchangeable seal and washer sets
  • Light weight
  • Uses standard plant air supplies from 40 to 125 psi (2.7 to 8.6 bar)
  • Rod and extension tube assemblies available in 1 to 6 foot lengths (30.5 to 182.9cm)
  • Complete kit available

Technical specifications

  • Allows testing of tubes from 0.50 to 1.23 OD (12.7 - 31.3mm)
  • Air Control Unit weighs less than 2.5lbs (1.1kg)
  • Can be assembled to test tubes up to 24 feet long 7.32 m). Shorter rod and tube extensions permit working in close quarters
  • Consists of a G-450 Air Injection Gun and an extension tube assembly with seals
  • Complete kit set to the distance between the two tube sheets

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