Ring joint gaskets are  solid metal gasket that is highly polised and softer than the flange material.  The gasket is actually ‘crushed’ into flange (coining & intimate contact), creating a seal by filling imperfections and leak paths with gasket material. Ring joint gaskets are  solid metal gasket that is highly polised and softer than the flange material.  The gasket is actually ‘crushed’ into flange (coining & intimate contact), creating a seal by filling imperfections and leak paths with gasket material.

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Gasket Series

Standard Spiral Wound Gasket

Spiral Wound Gasket for Heat Shield

Manhole/Handhole Spiral Wound Gasket

Spiral Wound Gasket for Heat Exchanger

Low Load Spiral Wound Gaskets

Range of Materials Spiral Wound Gaskets

Spiral Wound Exhaust Pipe Gasket

Kammprofile Grooved Gasket

Double Jacketed Gasket

Tanged(Reinforced) Graphite Gasket

Molded Graphite Ring For Exhaust

Cylinder Gasket & Engine Gasket

Ring Joint Gasket

Non-asbestos Gasket

Asbestos Gasket

PTFE Gasket

PTFE Envelope Gasket

Rubber Gasket

Non-Metal Gasket

Semi-Matal Gasket

Metal Gasket

Tape Gasket

High temperature Gasket

Insulation Gasket

Gasket Sheet

Flexile Graphite Sheet

Reinforced(Tanged) Graphite Sheet

Compressed Asbestos Rubber Sheet

Reinforced(Tanged) Asbestos Sheet

Non-asbestos Jointing Sheet

Reinforced(Tanged) Non-asbestos Sheet

PTFE(Teflon) Sheet

Expanded PTFE Sheet

Rubber Sheet

Cork Rubber Sheet

Gland Packing

Graphite Packing

PTFE Packing

PTFE Graphite Packing

Carbon Fiber Packing

Kevlar Fiber Packing

Synthetic/Mineral Fiber Packing

Vegetable Fiber Packing

Special Gland Packing

Molded Packing Ring

Die-formed Graphite Ring

Injectable Packing

Sealing Material

PTFE Sealing Material

Graphite Sealing Material

Material For Spiral Wound Gasket

Expande PTFE Valve Stem Packing
Expanded PTFE Joint Sealant
Flexible Graphite Tape

Packing Braided Yarn

Graphite Corrugated Tape
Self-adhesive Graphite Weaven Tape

Ceramic Fiber Thermal Insulation Material

Glass Fiber Thermal Insulation Material

Sealing Tools & Machines

Packing Maintenance Tools

Packing Cutter

Gasket Cutter

Other Handle Tools

Gasket Machines

Machines For Spiral Wound Gasket

Machines For Braiding Packing

Machines For Cut Gasket

Kammprofile Machines

Eyelets Wrapping Machine

Eyelets metal Tape shaper

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      Keywords:Gaskets,Non-asbestos Gasket,Professional Manufacturers & Suppliers of gaskets and gland packing

  Metal Gasket Series  
  Ring Joint Gasket            Oval Ring Joint Gasket           Octagonal Ring Joint Gasket           Lens Ring Joint Gasket
  Flat Metallic Gasket              Metallic Corrugated Gasket              Kamprofile(Serrated) Gasket          
  Metallic Disc Gasket
   

Ring Joint Gasket

Item No.:ZD-G1800

Description:

Ring joint gaskets are  solid metal gasket that is highly polised and softer than the flange material.  The gasket is actually ‘crushed’ into flange (coining & intimate contact), creating a seal by filling imperfections and leak paths with gasket material.  Under high sealing stress the gasket will deforms but the flange will not.  They are used predominantly in the petrochemical industry (offshore oil platforms, refineries) due to the high service pressures required in their processes.  Ring joing gaskets are precision engineered and machined to exact specifications with tight tolerances(ASME B16.20, API 6A).

Application:

ZD-G1800 ring joint gaskets are metallic sealing rings suitable for high pressure and high temperature applications and are fitted in ring groove type flanges.They are widely used in the Oil / Petrochemical industry and in valves and pipe work. Choice of material may be determined to suit higher temperatures and aggressive media. Ancillary Components:

Sometimes,the sealing fluid and  working condition is special.We need to add some ancillary components.Then the sealing effect will be better:

  • PTFE inner rings - for sitting in the cavity between flange bore and ring joint to reduce turbulence and flange erosion.

  • Flange protectors - for installation around the external diameter of flange joint to minimise ingress of moisture and dirt.

  • Rubber coated ring joints - soft iron ring joint gaskets encapsulated in nitrile rubber for testing wellhead assemblies and valves. Rings can be reused and do not damage flange grooves.

The Gaskets Are Available In 3 Types:

STYLE R:R type ring joint gaskets are available in oval or octagonal cross section and manufactured in accordance to API 6A and ASME B16.20 to suit API 6B and ASME / ANSI B16.5 flanges.The oval ring fits the round AND flat bottom ring groove flange while the octagonal shape fits only the modern flat bottom groove flange.

STYLE RX:The RX type RTJ gasket is manufactured in accordance to API 6A and ASME B16.20 to suit API 6B and ASME / ANSI B16.5 flanges. The RX is a pressure energized version of the R octagonal gasket and fits the R type flat bottomed groove.The RX has an increased height and utilizes the internal system pressure to energize and improve the seal as internal pressure increase. Some RX sizes have a pressure relief hole to equalize pressure both sides of the sealing faces.

STYLE BX:The BX type RTJ gaskets are manufactured in accordance with API 6A and are suitable for use in high pressure API 6BX flanges. The gaskets form a metal to metal seal on assembly and the efficiency improves as internal pressure increases. All BX sizes have a pressure relief hole to equalize pressure across sealing faces.

StandardANSI B16.5-1973、JPI-75-15-70、GB 699、GB1220、JB755、HG20633-97

Material of RTJ:

Material

Maximum Hardness

Temperature( ℃ )

Abbreviations

Brinell

Rockwell“B”Grade

Soft Iron

90

56

-60~500

D

Low Carbon Steel

120

68

-40~540

S

SS304

160

83

-250~540

304

SS304L

160

83

-250~540

304L

SS316

160

83

-200~815

316

SS316L

160

83

-200~815

316L

SS321

160

83

-200~870

321

SS347

160

83

-200~870

347

SS410

170

86

-40~850

410

5Cr-0.5Mo

130

 

-29~650

 

Copper

80

 

-100~315

 

Aluminum

35

 

-200~425

 

Inconel 600

150

 

-100~1095

 

Incoloy 825

150

 

-100~1095

 

Monel 400

150

 

-100~760

 

Titanium

215

 

-200~540

 

Nickel 200 -

110

 

200~760

 

Hastelloy B2

230

 

-100~1095

 

Hastelloy C276

210

 

-100~1095

 

 

Warning: Gasket materials should never be recommended when both the temperature and the pressure are at the maximums listed.  Properties and applications shown are typical.  No application should be undertaken by anyone without independent study and evaluation for suitability. Never use more than one gasket in one flange joint, and never reuse a gasket.  Improper use or gasket selection could cause property damage and/or serious personal injury.  The data reported is a compilation of field testing, field service reports and/or in-house testing.  While the utmost care has gone into publishing the information contained herein, we assume no responsibility for errors.  The information and specifications  contained in this website are subject to change without notice. This revision cancels and obsoletes all previous editions.

 

 

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Address:Ximenwai Industrial District,Longshan Town,Cixi,Ningbo City,China.
Tel:+86-574-63787875, 63787080 Fax:+86-574-63787241 
E-mail: mgr@chinaseal.cn; wangbo@chinaseal.cn