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