RTJ GASKETS – TG30-TG31

RTJ joints are indicated in applications high pressures and temperatures. They are designed to be accommodated in specific slots and flanges contact surfaces of the gasket and the flange must be carefully machined and finished. They are particularly suitable for very high pressures, up to 1000 psi. The RTJ gasket material should be a little softer than the flange itself to avoid damage to their faces.

This product can be in 4 different profiles, but the most common are Octagonal and Oval.

INDUSTRIAL APPLICATION:

They are used mainly in oil installations in drilling equipment and assemblies of valves and pipes and pressure vessels in some high performance.

  • RTJ SEALS PROFILES

TG 30
RTJ oval for standard flanges. As with all solid metal Ring Type Joints, It is recommended to replace the ring when flanged connection is broken. Surface finish of the TG 30 sealing faces shall not be greater than 1,6 um Ra / 63 in RMS. CPI-PROYSOL TG30 joints can be manufactured in accordance with relevant standards to suit the following flange designations:
• API 6A
• ASME B16.5
• ASME B16.47 SERIES A
• BS1560
• Or according a drawing.

TG 31
RTJ oval for standard flanges. As with all solid metal Ring Type Joints, It is recommended to replace the ring when flanged connection is broken. Surface finish of the TG 30 sealing faces shall not be greater than 1,6 um Ra / 63 in RMS. CPI-PROYSOL TG30 joints can be manufactured in accordance with relevant standards to suit the following flange:
• API 6A
• ASME B16.5
• ASME B16.47 SERIES A
• BS1560
• Or according a drawing.

TG 32
The style BX TG 32 ring type joints, are manufactured in accordance with ASME B16.20, API 6A and API 17D, are designed for use on API 6BX flanges on pressure systems rated up to 20000 psi. When correctly fitted, the style BX TG32 gasket allows face to face contact of the flange
faces which means that the gasket is fully confined on both the inner and outer diameter. The maximum surfaces finish of the TG32 sealing faces shall not be greater than 0.8 um Ra / 32 in RMS.

TG 33
The style RX is an adaptation of the RTJ TG30. It is designed to fit the same groove design as a TG30 joint. The geometry of this modified design induces a pressure energising effect when the assembly is pressurised improving the efficiency of the seal. Surface finish of the TG33 sealing faces shall not be greater than 1,6 um Ra / 63 in RMS.


MaterialUNSMaximum HardnessIdentification
NumberBrinell (BHN)Rockwell (RB)
Soft Iron9056D
Low Carbon Steel12068S
F5(4-6 % Chrome 1/2% Moly)K4254413075F5
St. St. AISI 304S3040016083S304
St. St. AISI 316S3160016083S316
St. St. AISI 347S3470016083S347
St. St. AISI 410S4100016086S410
Alloy 600N0660020092N0600
Alloy 625N0662520092N06625
Alloy 800N0880020092N08800
Alloy 825N0882520092N08825
Alloy C276N1027620092N10276
SMO 254S3125418089S31254
DuplexS31803250S31803
Super DuplexS3276020092S32760
Monel ® 400 (M400) Titanium Gr.2N0440020092N04400

* Other hardness under request.

Data Sheet

 

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