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Metallic Gaskets

Metallic gaskets cannot be punched out of sheets but are still cheap to produce. These gaskets generally have a much higher level of quality control than sheet gaskets and generally can withstand much higher temperatures and pressures. Metal must be greatly compressed in order to become flush with the flange head and prevent leakage. The material choice is more difficult; because metals are primarily used, process contamination and oxidation are risks. Metallic gasket used must be softer than the flang in order to ensure that the flange does not warp and thereby prevent sealing with future gaskets.

RING JOINT GASKET

R type

R type ring Joint gaskets comprises of two types such as Oval cross section and an Octagonal cross section. These types of gaskets are used in pressures up to 10,000 PSI. The dimensions are standardized and require specially grooved flanges. Sealing occurred in Octagonal cross section with the wedge contact, Oval cross section with single line contact. The flat bottom groove design will accept both the Octagonal and Oval cross section. The sealing surfaces on the Ring Joint Gasket and Grooves must be smoothly finished to 63 micro inches and to be free of objectionable ridges, tool or chatter marks

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Bx type

The BX Ring Gasket differs from the standard RX, Oval or Octagonal shape since it is square in cross section and tapers in each corner. BX is used at pressures up to 20,000 PSI. The BX Gaskets will have pressure relief hole at mid portion of C. The sealing surfaces on the Ring Joint Gasket and Flange Grooves must be smoothly finished to 32 micro inches and to be free of objectionable ridges, tool or chatter marks.

Rx type

RX ring gaskets are similar in shape to the standard octagonal ring joint gasket but their cross section is designed to take advantage of the contained fluid pressure in effecting a seal. They are both made to API 6A and interchangeable with standard Octagonal and Oval rings for oil field drilling and production applications in API 6B flanges. RX is used at pressures up to 5,000 PSI. The sealing surfaces on the Ring Joint Gasket and Grooves must be smoothly finished to 63 micro inches and to be free of objectionable ridges, tool or chatter marks. The hardness of the Ring Gaskets should always be less than the hardness of the flanges to prevent flange deformation. Dimensions Ring Joint Gaskets are covered in ASME B16.20 and API 6A standard. These Gaskets are used in ASME B16.5 flanges, API 6B flanges and API 6BX flanges.

Rubber Coated type

Rubber coated Ring Gasket (usually steel) used in pressure testing to minimize damage to flanges. The rubber contact points provide additional seals while protecting the flange surface.

 

 

SEMI METALLIC GASKETS

Semi Metallic Gaskets are designed to feature soft ,elastic sealing materials which enhance the tightness of assembly with lower load requirements when compared to metallic gaskets. This type of gasket has unique specialty because of its wide range of size and types. They can be fabricated of any metal. Semi Metallic gaskets can generally be used in various pressure class flange ratings according to ASMEb16.5 standards. They rebounds readily from any deformation that happens due to temperature gradients, variations of pressure and vibration.

SPIRAL WOUND GASKET

R type (Only Gasket)

Vittal Gaskets provides this type as only the Gasket. A winding with an alternate combination of a STEEL strips and a soft non-metallic FILLER. The metal strip in the gasket is performs superior resiliency and self-adjustment when compared to conventional gaskets. This type is just a sealing component (winding with filler) only, which is normally used on tongue and groove joints, male and female facings and groove to flat flange facings.

CG type (Gasket with Outer Ring)

Vittal Gasket provides this type Gaskets, consist of a Gasket (Winding + Filler) with a solid metal OUTER guide ring. A winding with an alternate combination of a STEEL strips and soft non-metallic FILLER with Solid Outer Guide Ring. These gaskets can be used on plain flat face flanges and on raised face flanges. The outer guide ring serves to center the gasket properly in the flange joint, acts as an anti-blowout device and compression gauge to prevent Spiral wound gasket to prevent the Spiral Wound component from being crushed. Normally the outer guide rings are furnished in mild steel (Carbon Steel), but can be supplied in other metal when required by operating conditions.

GI type (Gasket with Inner Ring)

Vittal Gaskets provides this type Gaskets, consist of a Gasket (Winding + Filler) with a solid metal Inner Ring. A winding with an alternate combination of a STEEL strips and soft non-metallic FILLER with Solid Inner Ring. The inner ring also serves several functions. Primarily, it provides radial support for the gasket on the Inner diameter to help prevent the occurrences of inside buckling, collapsing and imploding. Its Inner diameter is normally sized slightly larger than the Inner diameter of the flange bore, minimizing turbulence avoiding uneven flow. The inner rings are normally supplied in the same material as the winding strips in spiral wound component. This Gasket mostly used in tongue and Groove flanges,Valves and pumps.

CGI type (Gasket with Inner and Outer Ring)

Vittal Gaskets provides this type Gaskets, consist of a Gasket (Winding + Filler) with a solid metal Inner and OUTER guide ring. A winding with an alternate combination of a STEEL strips and soft non-metallic FILLER with Solid Inner and Outer Guide Ring. This type CGI is identical to style CG, with the addition of an INNER ring. The inner ring also serves several functions. Primarily, it provides radial support for the gasket on the Inner diameter to help prevent the occurrences of inside buckling, collapsing and imploding. Its Inner diameter is normally sized slightly larger than the Inner diameter of the flange bore, minimizing turbulence avoiding uneven flow. The inner rings are normally supplied in the same material as the winding strips in spiral wound component.

ONGI (Gasket with Inner Ring & Outer Nose)

Vittal Gaskets provides this type Gaskets, consist of a Gasket (Winding + Filler) with Nose (Bare) Outer winding a solid metal Inner Ring and OUTER bare (Nose) winding. A winding with an alternate combination of a STEEL strips and soft non-metallic FILLER with Solid Inner Ring and Outer Nose (Bare) winding. This type Gaskets are mostly used in Heat exchangers where the minimum space available. Primarily, it provides radial support for the gasket on the Inner diameter to help prevent the occurrences of inside buckling, collapsing and imploding. Its Inner diameter is normally sized slightly larger than the Inner diameter of the flange bore, minimizing turbulence avoiding uneven flow. The inner rings are normally supplied in the same material as the winding strips in spiral wound component. Outer Nose Winding is used material same as of winding metal.

ONG (Gasket with Outer Nose)

Vittal Gaskets provides this type Gaskets, consist of a Gasket (Winding + Filler) with Nose (Bare) Outer winding a solid metal winding as OUTER bare (Nose) winding. A winding with an alternate combination of a STEEL strips and soft non-metallic FILLER with solid Outer Nose (Bare) winding. This type Gaskets are mostly used in Heat exchangers where the minimum space available. The Inner diameter of Gasket larger than the flange bore; Outer Nose Winding is used as same material of winding metal. In some type where partition plates are available, the gasket shall have partition ribs made out of double jacketed or solid metal. For these drawing or details must be given by Customer.

DOUBLE JACKETED GASKET

Double Jacketed gaskets used for heat exchangers and large vessels. The Double Jacketed Gaskets consists of jacketed metal encapsulate with soft filler. The Double jacketed Gaskets are designed as per ASME B16.20. Double Jacketed gaskets to ASME B16.20, designed to suit ASME B16.5 and ASME B16.47 flanges. Mostly used on Equipments, boiler and heat exchangers. Other non-standard Gaskets are manufactured as per customer specific requirements. Excellent Gasket manufactures all shapes with different partition as per customer requirements.

CORRUGATED METAL GASKETS

Thin sheet metal gaskets with pressed corrugations – usually concentric around the bore.Surface configuration with corrugations enables the gasket to adapt to rough or irregular flange surfaces without undue compressive load.Provides efficient seal under varying conditions of temperature and pressure.Can be custom made in any suitable metal.Usually formed in 0.25mm brass sheet, but almost any malleable material will be considered.In material to suit the application, and to any practical shape, size and quantity.

KAMMPROFILE GASKETS

Kammprofile gaskets are used in many older seals since they have both a flexible nature and reliable performance. Kammprofiles work by having a solid corrugated core with a flexible covering layer. This arrangement allows for very high compression and an extremely tight seal along the ridges of the gasket. Since generally the graphite will fail instead of the metal core, Kammprofile can be repaired during later inactivity. Kammprofile has a high capital cost for most applications but this is countered by long life and increased reliability.

 

Non Metallic Gaskets

RUBBER GASKETS

We are leading manufacturer supplier of high quality Rubber Gaskets. Rubber Gaskets for a wide range of industries across the country. We are committed to our promise of providing our customers with neoprene gaskets that have been accurately cut to the tightest tolerance and delivered with the quickest turnaround in the industry.

 

PTFE GASKETS

We are a prominent firm engaged in manufacturing, supplying and exporting high-grade PTFE Gasket. These are designed by our experts using premium quality raw material and modern methodologies. Clients can avail these products from us in different sizes and specifications as per their requirements. We accept bulk orders for the product and ensure their delivery within the stipulated time-frame.

 

 

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REACH US

VITTAL GASKET INDUSTRIES
Plot No.8, Door No. 5/320 A
Shanthi Nagar,
(Back side - Andrew Yule & Co Ltd)
Kandanchavadi,
OMR, Chennai - 600096.
Tamilnadu, India.

Phone:- 044 24961614
Mobile:- 91 9344266023

Email:- vittalgasket@gmail.com
Website:- www.vittalgasket.com
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