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ENGINEERED & SPECIALIZED GASKETS

Engineered & Specialized Gaskets

Engineered and specialized industrial gaskets

Specialized sealing solutions for demanding industrial flange and equipment connections, including RTJ, Kammprofile and jacketed gaskets. Configured according to flange geometry, pressure class, material, service media and project requirements.

Types RTJ · Kammprofile · Jacketed

Construction Metallic / Semi-Metallic

Materials CS · SS · Alloy

Selection Application Specific

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PRODUCT OVERVIEW

Specialized gaskets for demanding industrial applications

Engineered and specialized gaskets are designed for applications where conventional sheet, fiber or elastomer gaskets may not provide the required sealing performance or mechanical characteristics.

Rhevon supplies specialized gasket configurations including Ring Type Joint (RTJ), Kammprofile and jacketed gaskets. Each design uses a different sealing principle and is selected according to the flange, equipment geometry and operating conditions.

Material selection can include stainless steels, carbon steels and selected alloy materials, together with suitable graphite, PTFE or other facing and filler materials where applicable.

These gaskets are generally supplied against specific dimensional, material and service requirements. Buyers can provide a drawing, existing gasket identification, flange standard or complete technical specification for quotation.

PRODUCT CATEGORY Engineered & Specialized Gaskets

RTJ, Kammprofile and jacketed gasket solutions for demanding flange and equipment applications.

GASKET TYPES

Three specialized sealing configurations

Select the gasket construction according to the flange design, pressure-temperature conditions, process media and sealing requirements.

RTJ Gasket

Metallic Ring Type Joint gaskets designed for use in specially machined ring grooves. The gasket is compressed within the groove to create a high-integrity metal-to-metal sealing arrangement.

Type Ring Type Joint

Typical Standard ASME B16.20

Common Materials CS · SS · Alloy

Kammprofile Gasket

Semi-metallic gaskets consisting of a serrated or corrugated metallic core with a soft sealing layer. They provide controlled compression and are suitable for demanding flange and equipment applications.

Type Kammprofile

Core Serrated Metal

Typical Facing Graphite · PTFE

Jacketed Gasket

Gaskets consisting of a soft filler material enclosed partially or completely within a metallic jacket. The construction combines a conformable filler with the mechanical protection of the metal jacket.

Type Jacketed

Jacket CS · SS · Alloy

Filler Graphite · PTFE · Fiber

MATERIALS & SPECIFICATIONS

Metallic and sealing material options

Material combinations are selected according to the gasket construction, operating temperature, pressure, process media and project specification.

Gasket Type	Primary Material	Sealing / Filler Material
RTJ	Carbon Steel / Stainless Steel / Alloy	Metallic Sealing Surface
Kammprofile	SS304 / SS316 / Alloy	Flexible Graphite / PTFE
Jacketed	CS / SS / Alloy	Graphite / PTFE / Fiber
Jacketed Double Jacket	SS / Alloy	Graphite / Fiber / Application Specific

DIMENSIONAL DATA

Specialized metal gasket dimensions

Type R metal ring-joint selection and principal oval or octagonal ring dimensions.

Oval ring-type joint gasket dimensional drawing — TECHNICAL DRAWINGS **Specialized metallic gasket reference geometry** RTJ, metal-jacketed and grooved metal-faced formats are shown for dimensional reference.

Octagonal ring-type joint gasket dimensional drawing — TECHNICAL DRAWINGS **Specialized metallic gasket reference geometry** RTJ, metal-jacketed and grooved metal-faced formats are shown for dimensional reference.

REV 03 DIMENSIONAL REFERENCE ASME B16.20 - Catalog pages 16-17. Company-source dimensions are shown to 0.01 mm unless noted.

Type R ring selection

Use only with a matching RTJ flange groove

Flange NPS	Class 150 ring	Class 300 ring
½	—	R11
¾	—	R13
1	R15	R16
1 ¼	R17	R18
1 ½	R19	R20
2	R22	R23
2 ½	R25	R26
3	R29	R31
3 ½	R33	R34
4	R36	R37
5	R40	R41
6	R43	R45
8	R48	R49

Type R ring dimensions

P = pitch diameter; w = radial width; Ho/Ht = ring height

Swipe horizontally to view every column.

Ring	`P`(mm)	`w`(mm)	`H`_ooval(mm)	`H`_toctagonal(mm)
R11	34.14	6.35	11.20	9.70
R13	42.88	7.95	14.20	12.70
R15	47.63	7.95	14.20	12.70
R16	50.80	7.95	14.20	12.70
R17	57.15	7.95	14.20	12.70
R18	60.33	7.95	14.20	12.70
R19	65.10	7.95	14.20	12.70
R20	68.28	7.95	14.20	12.70
R22	82.55	7.95	14.20	12.70
R23	82.55	11.13	17.50	16.00
R25	101.60	7.95	14.20	12.70
R26	101.60	11.13	17.50	16.00
R29	114.30	7.95	14.20	12.70
R31	123.83	11.13	17.50	16.00
R33	131.78	7.95	14.20	12.70
R34	131.78	11.13	17.50	16.00
R36	149.23	7.95	14.20	12.70
R37	149.23	11.13	17.50	16.00
R40	171.45	7.95	14.20	12.70
R41	180.98	11.13	17.50	16.00
R43	193.68	7.95	14.20	12.70
R45	211.15	11.13	17.50	16.00
R48	247.65	7.95	14.20	12.70
R49	269.88	11.13	17.50	16.00

Catalog notes

A dash means no standard ring is listed for that size and class.

For jacketed or grooved constructions, obtain the applicable ASME B16.20 table or an approved drawing with ID, OD, thickness and facing detail.

TECHNICAL PARAMETERS

Engineered gasket specifications

Gasket Types RTJ · Kammprofile · Jacketed

Construction Metallic / Semi-Metallic

Metallic Materials CS · SS · Alloy

Facing / Filler Graphite · PTFE · Fiber

RTJ Standard ASME B16.20

Flange Compatibility Application Specific

Dimensions Standard / Drawing Based

Selection Service & Design Specific

APPLICATIONS

Typical industrial applications

Oil & Gas

Refineries

Petrochemical

Chemical Processing

Power Generation

Heat Exchangers & Equipment

QUALITY & DOCUMENTATION

Controlled supply for critical gasket requirements

Specialized gasket requirements can be reviewed against the applicable dimensional standard, material specification, flange or equipment drawing and purchase order requirements before supply.

01 Material verification

02 Dimensional inspection

03 Visual inspection

04 Thickness / construction verification

05 Material marking & traceability

06 MTC / inspection documentation where required

FREQUENTLY ASKED QUESTIONS

Engineered & Specialized Gasket FAQ

Common questions about RTJ, Kammprofile and jacketed gasket selection, materials and project requirements.

Rhevon can source specialized gasket configurations including Ring Type Joint (RTJ), Kammprofile and jacketed gaskets. The appropriate construction is selected according to the flange or equipment design and operating requirements.

An RTJ gasket is a metallic ring-type gasket designed for use with flanges having a matching ring groove. RTJ arrangements are commonly used in demanding high-pressure and high-temperature piping and equipment applications.

A Kammprofile gasket consists of a serrated metallic core combined with a softer facing material. The metallic core provides mechanical stability while the facing material assists in creating the sealing interface.

A jacketed gasket consists of a relatively soft filler enclosed partially or completely within a metallic jacket. The filler provides conformability while the metal jacket protects the sealing material and provides additional mechanical support.

For specialized gaskets, provide the gasket type, nominal size, pressure class, flange or equipment standard, material, dimensions, thickness, facing or filler material, quantity and service conditions where applicable. A drawing or existing gasket sample/specification is particularly useful for engineered requirements.

HAVE A SPECIALIZED REQUIREMENT?

Need an engineered gasket for your project?

Share the gasket type, dimensions, material, pressure class, flange or equipment specification, quantity and service requirements. Drawings and mixed piping component requirements are also welcome.

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