Goodrich Gasket Private Limited established in 1987 is a part of Flosil Group, a conglomerate with expanding interests in Manufacturing, Defense Technology, Oil & Gas, Infrastructure, Education, FMCG, Renewable energy, Investments etc and has been manufacturing all types of Industrial Gaskets for petroleum refineries and other industrial projects with a manufacturing facility of 196,000 sq. ft. of fabrication shop & machine shop in Chennai, India and equipped with state of the art machinery, handling facilities and expert engineers.
Suitable for use in Class 150 – 2500 service, Kammprofile gaskets by Goodrich Gasket Pvt Ltd offers a safe and effective sealing under most severe conditions in both standard pipe and equipment flanges. Its excellent compressibility and recovery characteristics providing seal integrity under high pressure high temperature applications has made it a replacement for jacketed gaskets as heat exchanger gaskets.
Kammprofile gaskets have a solid grooved metal core with soft conformable facing materials bonded on both sealing surface faces. The soft conformable facings with low initial stress assist on gasket seating and facing material gets trapped within the grooves minimizing flow or extrusion. The precision machined concentric grooves enrich sealing performance by inducing high stress concentrations across the peaks of the grooves on seating of the gasket and also makes it consistent and repeatable. These qualities make it a robust, blowout resistant gasket not requiring a compression stop for over – compression cases.
As gasket manufacturers Goodrich Gasket offers Kammprofile gaskets with two types of core profiles, namely DIN and Shallow profiles. Facing and metal core materials are decided based on the application and design needs.
Grooved metal Gaskets with covering layers including centering ring are identified by Flange size (NPS), Pressure class and appropriate flange standards (ASME B16.5, ASME B 16.47).
The centering ring of each Grooved metal gasket shall be permanently marked. The lettering height shall be a minimum of 2.5mm (0.1in). The following information shall be included with the centering ring markings: manufacturer's name or trade mark, pressure class, flange size (NPS) and metal core and covering material abbreviation except that it may be omitted when 304 stainless steel is used
Also centering ring abbreviation except that it may be omitted when CS is used and the flange identification.Gaskets intended for ASME B16.47 flanges shall be marked ASME B16.47B or B16.47A as applicable and those of B16.5 not required to be so and ASME 16.20 designation.Gaskets suitable for more than one pressure class shall be marked with all applicable classes.
When material availability precludes this weld spacing, then Additional welding, as agreed by the purchaser and manufacturer, is permitted. The grooves shall be machined into the core after welding.In welded areas, the groove, peak profile, and base metal shall be uniform in spacing, thickness, and height with the adjacent metal core.When specified by the purchaser, weld inspection methods, such as ultrasonic or radiographic, along with acceptance criteria, shall be established.
A centering ring is required and used to help position the gasket within the flange bolt circle. Unless otherwise specified by the purchaser, the centering ring shall be 1.6-mm (0.06-in.) nominal thickness and shall be suitably attached to the grooved metal core using an integral (one-piece or welded) or Non integral attachment method. The thickness of the centering ring shall not exceed the thickness of the core.
Gaskets shall be marked with a color code that identifies the metal core and facing materials. A continuous color around the outer edge of the centering ring shall identify the core metal. The color identifying the facing material for NPS 3 and larger shall have a minimum of four stripes equally spaced on the outer edge of the centering ring. Smaller size gaskets shall have a minimum of two stripes 180 degree apart. The colors shall conform to those listed in Table 29. Special material not listed in Table 29 shall not be color coded. Users shall refer to the guide ring marking for material.
Grooved metal gaskets with covering layers shall be constructed as a concentrically grooved metal core (sealing element) with a centering ring. The grooved metal portion of the finished gasket shall be faced with a covering layer on both sealing surfaces that is 0.46-mm (0.018-in.) to 0.56-mm (0.022-in.) thick. The thickness of the metal core of the gasket shall be 2.97 mm (0.117 in.) to 3.33 mm (0.131 in.). The thickness on any single gasket shall be uniform within a maximum tolerance range of 0.13 mm (0.005 in). Welding is permitted only in NPS 14 and larger gaskets. Welding shall be subject to the following:
(a) Full penetration welds shall be used.
(b) Where only two welds are used, the minimum weld spacing shall be 152 mm (6 in.).
(c) Where more than two welds are required, minimum weld spacing shall be 609 mm (24 in.).
(d) Weld spacing shall be measured along the inside circumference of the metal core.
|Tanged insert graphite|
|Stainless Steel Types 316L, 304, 309, 310, 317L, 321, 347, and 430|
|Incoloy 800, 825.|
|Hastelloy B2, C276.|
|Monel, CS, Aluminum, Copper, Brass, Titanium, Nickel 200, Alloy 20, Duplex etc.|
|Soft metals etc.|
Style G - PN Kammprofile gaskets are used in confined spaces and include male and female, tongue and groove and recessed flange arrangements.
Style G - ZG is an addition of an integral outer locating ring for exact gasket positioning within the mating flange bolt circle. These are used on standard raised and flat face flange assemblies.
Style G - ZA is manufactured by replacing the outer locating ring in Style G - ZG with a loose fitting independent ring. It accounts for flange differential radial thermal expansion. These rings may be spot welded too.
No. 40, Velichai Village
Vandalur- Kelambakkam Road,
Chennai- 600 048,Tamilnadu, INDIA.
Phone : +91-44-2749 8022 / +91-44-2749 8033
: +91-44-6740 0000 To 99 (100 Lines)
Fax : +91-44-2749 8055
Web : www.goodrichgasket.com
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