Ring Type Joints are widely used by the Oil, Gas, Petrochemical and Offshore Industries in applications subject to high pressures and temperatures.

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2 Type Joints Noble Engineers is an independent company manufacturing and supplying a variety of high quality sealing products designed for flange applications in the industrial and manufacturing sectors. We have an extensive network of distributors worldwide, including Novus companies in Australia, China and South Africa ensuring that we can meet all of our customer s global requirements. Noble Engineers supply Type Joints which are fully approved to API 6A Product Specification level 4, the highest quality rating, as well as ISO 9001: 2000 and ISO Type Joints are widely used by the Oil, Gas, Petrochemical and Offshore Industries in applications subject to high pressures and temperatures. These joints are designed to concentrate the bolt load over a small area thus producing high seating stresses. As the ring type material should always be softer than the mating flanges, the high seating stress causes plasticflow of the ring joint in the flange faces creating the seal.

3 Noble Engineers supplies a range of specialized Type Joints for critical and non standard applications to suit the requirements of the petrochemical industry. Cam-ORJ The Cam-ORJ is a standard API 6A octagonal ring joint but with the four angled seating surfaces concentrically serrated and faced with oxidation inhibited graphite. The gasket offers the high sealing efficiency associated with the octagonal design but with the added benefit of being capable of sealing flanges with minor damage. Under compression the graphite flows into minor imperfections creating a tight seal. The Cam-ORJ is available in a range of Alloy materials and in sizing to suit ASME B16.5 or API 6A flanges. Noble model M8R and M9R Rubber Coated Type Joints This is an octagonal/oval section ring type joint generally soft iron or low carbon steel totally enclosed in a nitrile rubber coating. Widely used in pressure testing procedures, minimising any damage to the flange. Noble model M12PI Type Joints with PTFE Inserts M12 model RX Type Joints can be supplied with PTFE inserts. Designed to reduce turbulent flow and eliminate ring joint and flange corrosion. The insert is specially designed with radially drilled holes ensuring the self-energising performance is not affected. The insert is located between the inside diameter of the ring joint and the bore of the flange. On assembly, the insert is captured between the flanges, filling the void between ring joint and flange bore. Blind Type Joints These specialised Type Joints are designed and manufactured for the customer who has a requirement to blank off flanges and pipe work. The Joints are standard rings but with a machined metallic centre. Blind Type Joints can be supplied in a variety of materials.

4 Combination Type Joints This Type Joint consists of 2 different sizes having the same pitch diameter, used for sealing and flange joint where the mating flanges have different ring groove dimensions or profiles. These Type Joints can be produced with either octagonal or oval facings, however they are not manufactured in accordance with API specification. complete drawings must be supplied. Delta s This is a pressure actuated ring used primarily on pressure vessels and valve bonnets at pressures in excess of 5000 psi. Internal pressure forces the delta ring material to expand. As with the Lens rings for enquiries and orders should be sent with complete drawings. Type Joint Profiles Type R Type Joints Noble models M8 and M9 M8 model R Oval section and M9 model R Octagonal section ring type joints are designed for flanges with standard ring type grooves. These standard shapes are used to seal pressures up to 5,000 psi in accordance with API 6A. The Octagonal cross section has a higher sealing efficiency than the oval cross section and is therefore preferred. The oval section ring joints were originally designed for the now obsolete round bottom groove. Both the oval and the octagonal cross section are interchangeable on the flat bottom groove design. Type BX Type Joints Lens s This is a contact seal for use in high pressure piping systems and in pressure vessel heads. Lens rings have a spherical surface that requires special matching of the flanges. Effective sealing is obtained at a relatively low bolt loads. These ring type joints are manufactured in accordance with DIN For enquiries Noble model M11/M11S M11 model BX Type Joints are designed for pressures up to 20,000 psi, suitable only for use with API type BX flanges and grooves. The gasket has a square cross section with

5 bevelled corners. The average diameter of the ring joint is slightly greater than that of the flange groove. This way, when the ring joint is seated, it stays pre-compressed by the outside diameter, creating high seating stress. The M11S Model SBX Type Joint is thesame design as the BX, however the suffix S indicates that additional pressure equalisation holes have been drilled in accordance with API 17D for use on sub sea wellhead and christmas tree equipment. Type RX Type Joints Noble model M12/M12S M12 model RX Type Joints are designed for pressures up to 5,000 psi. A pressure activated ring joint, its shape is designed to use the fluid pressure to increase sealability. The outside sealing surface of the ring joint makes the initial contact with the flange. As the internal pressure rises the contact pressure between ring joint and flange also increases. This is sometimes referred to as a pressure activated ring joint. due to the shape of the gasket. High seating pressures are created increasing the sealability. This design characteristic makes the RX ring joint more resistant to vibrations, pressure surges and shocks that occur during oil well drilling. M12S Model SBX Type Joint is the same in design to the RX, however, the suffix S indicates that additional pressure equalization holes have been drilled in accordance with API 17D for use on sub sea wellhead and christmas tree equipment.

6 Service We pride ourselves on providing our customers with a high quality product, supported by an outstanding, honest and reliable service. We hold a comprehensive stock of most standard ring type joints Quality All Noble Type Joints are manufactured with full traceability to API6A PSL 4. Each ring type joint has (etched on the non seating surface) the heat number, ring number, material identification and API licence number etc providing comprehensive information to our end user. Noble Engineers continues to invest in quality and environmental systems and are fully accredited to both ISO 9001 and ISO We have a dedicated Research & Development team including an experienced metallurgist. They ensure high quality technical support for our complete product portfolio. Investment Noble Engineers continue to invest heavily in UK manufacturing and our metallic gasket department has recently gone through an expansion and modernisation programme, which puts us at the forefront of the gasket manufacturing industry. Accuracy and precision throughout the production process is rigorously checked. All Type Joints are engraved on the non seating surface with the ring number, heat number, material identification and the API license number. Technical Over the years Noble have enhanced their technical facilities to develop more new products and provide guidance and training programmes for some of the world's largest chemical and petrochemical plants. Every Type Joint is CNC machined for precision and consistent accuracy

7 Seating Stress To achieve a reliable seal, the Type Joint should be assembled within the following seating stress parameters: Material Identification Minimum (N/mm2) Seating Stress (20OC) Optimum (N/mm2) Maximum (N/mm2) Soft Iron D Low Carbon Steel S A182FS FS SS304 S SS316 S SS321 S SS347 S For other materials please contact our technical department Flange Surface Finish For other materials please contact our technical department The maximum flange surface finish for M8, M9, model R, M12 model RX is 1.6µm RA (63RMS). The maximum flange surface finish forss M11 model BX is 0.8µm RA (32RMS) How to Order A correct purchase order should contain the following information. 1. Type Joint model eg. M8 R Oval 2. number/size & pressure rating R16/Class 1 3/600lbs 3. Material/Identification Soft Iron or D 4. Flange Standard ASME/ANSI B16.5 Note: This can be abbreviated to R16D Oval RTJ

8 Noble M12 Model RX Type Joints API Specification 6A Dimensional Data Tolerances (Inches) A* (width of ring) , H* (height of ring) , OD (outside diameter of ring) , O (angle) + or - 0.5O Number Pressure Class Ratings (PSI) API 6A / Nominal Pipe Sizes (Inches) Pitch P *A plus tolerance of inches for width A and height H is permitted, provided the variation in width or height does not exceed inches throughout the entire Outside OD Width A Height H Dimensions in Millimetres distance between made-up flanges Weight KG s RX RX23 2.1/ RX24 2.1/16 2.1/ RX25 3.1/ RX26 2.9/ RX27 2.9/16 2.9/ RX31 3.1/8 3.1/ RX35 3.1/ RX37 4.1/16 4.1/ RX39 4.1/ RX RX RX45 7.1/16 7.1/ RX46 7.1/ RX RX RX RX

9 Number Pressure Class Ratings (PSI) API 6A / Nominal Pipe Sizes (Inches) Pitch P Outside OD Width A Height H Dimensions in Millimetres distance between made-up flanges Weight KG s RX RX /8 13.5/ RX RX / RX / RX RX RX / RX / RX RX RX RX RX RX RX RX RX RX RX / RX / RX / RX / Model RX are interchangeable with R Octagonal Joints A pressure balance hole of 1.5mm diameter is incorporated in RX82 through to RX91

10 Noble M12 Model RX Type Joints API Specification 6A Dimensional Data Tolerances (Inches) A* (width of ring) , D (hole size) + or H* (height of ring) , OD (outside diameter of ring) , O (angle) + or - 0.5O Number Pressure Class Ratings (PSI) API 6A Nominal Pipe Sizes (inches) Outside OD Height H Width A Dimensions in Millimetres Hole Size D Weight KG s BX BX / / / BX /16 2.1/16 2.1/ BX /16 2.9/16 2.9/ BX /16 3.1/16 3.1/ BX /16 4.1/16 4.1/ BX /16 7.1/16 7.1/ BX BX BX /8 13.5/8 13.5/ BX / BX / BX /4 16.3/4 16.3/ BX / BX /4 18.3/ BX / BX / BX / BX / BX / BX BX BX /8 13.5/ BX BX Joints can be used in API 6BX Flanges. A pressure balance hole is incorporated in all BX s to equalise any pressure trapped in the flange.

11 Hardness Type Joint Materials On installation, the material of the ring joint has to be softer than that of the flange to avoid damage. This table provides comparative data Type Joint material hardness values. Material (Trade Name) Identifi cation DIN Specification DIN Materi al No. B.S. AISI- ASTM UNS Maximum Hardness Brinell HB Rockwell B HRB Temperature Soft Iron D Low Carbon Steel S R st F5 F5 5 Cr 0.5 mo A182FS SS 304 S304 X5Cr Ni S15/16/ SS 304L S304L X2 Cr Ni S11 304L SS 309 S309 X15 Cr Ni Si S SS 316 S316 X5 Cr Ni Mo S SS 316L S316L X2 Cr Ni Mo S11/13 316L SS 316Ti S316TI X10 Cr Ni Mo Ti S31 316Ti SS 321 S321 X10 Cr Ni Ti S12/49/ SS 347 S347 X10 Cr Ni Nb S SS 410 S410 X6 Cr S SMO 6Mo X1Cr N i Mo Cu N S Duplex 2205 X2 Cr Ni Mo N S31803/3 Super Duplex 2507 X2 Cr Ni Mo N S Min. Max. Density approx approx Aluminium AL 1050 A B A Silver Ag (HV) Copper Cu SF-Cu C106 C12200 Brass CuZn3 7 Cu Za 37 (M563) CZ108 C approx approx Nickel 200 Ni 200 Ni NA11 NO Inconel Ni Cu 15 Fe NA14 NO Inconel Ni Cr 22 Mo 9 Mb NA 21 NO Incoloy X10 Ni Cr A1 Ti NA15 NO Incoloy Ni Cr 21 Mo NA16 NO Hastelloy B2 B2 Ni Mo NI Hastelloy C276 C276 Ni Mo 16 Cr 15 W NI Titanium Ti2 Ti TA2 R approx Brinell hardness measured with 3000kg, and 10mm diameter hardened steel ball. Softer materials i.e. copper & brass are measured with 500kgs and 10mm diameter hardened steel ball. Rockwell B hardness is measured with 100kg and 1.60mm diameter steel ball.

12 Noble M8 Model R Oval and Noble M9 Model R Octagonal Type Joints API Specification 6A Dimensional Data Tolerances (Inches) A (width of ring) + or B,H (height of ring) + or P (average pitch diameter of ring) + or O (angle) + or - 0.5O Number Pressure Class Ratings ASME/ANSI B16.5 API 6A ASME B16.47 Series A / / Pitch P Width of A Height Oval B Octago nal H distance between made up flanges Weight KG s Oval Octagon al Nominal Pipe Sizes (inches) Dimensions in Millimetres R11 1/ R12 1/2 1/ R13 3/4 1/ R14 3/4 3/ R R / R17 1.1/ R18 1.1/4 1.1/4 1.1/ R19 1.1/ R20 1.1/2 1.1/2 1.1/ R21 1.1/ R R /2 2.1/ R /16 2.1/ R25 2.1/ R26 2.1/ /16 2.9/ R27 2.1/2 2.1/2 2.9/16 2.9/ R28 2.1/ R R R /8 3.1/ R R33 3.1/ R34 3.1/ R / R R /16 4.1/ R R / R R R R R R /16 7.1/ R / R R R R R R R R R Notes: End flanges to API 6D and API 600 use ring joints for equivalent pipe size under ASME/ANSI B16.5 or ASME B16.47 series A R30 is only suitable for lapped flanges.

13 Noble M8 Model R Oval and Noble M9 Model R Octagonal Type Joints (continued) API Specification 6A Dimensional Data Tolerances (Inches) A (width of ring) + or B,H (height of ring) + or P (average pitch diameter of ring) + or O (angle) + or - 0.5O Number Pressure Class Ratings ASME/ANSI B16.5 API 6A ASME B16.47 Series A / / Pitch P Width of A Height Oval B Octago nal H distance between made up flanges Weight KG s Oval Octagon al Nominal Pipe Sizes (inches) Dimensions in Millimetres R /8 13.5/ R R R R R R R R R / R R R R R R R R / R / R R R R R R R R R R R R R R R R R R R R R R R R R

14 Noble M8 Model R Oval and Noble M9 Model R Octagonal Type Joints (continued) API Specification 6A Dimensional Data Tolerances (Inches) A (width of ring) + or B,H (height of ring) + or P (average pitch diameter of ring) + or O (angle) + or - 0.5O Number Pressure Class Ratings ASME/ANSI B16.5 API 6A ASME B16.47 Series A / / Pitch P Width of A Height Oval B Octago nal H distance between made up flanges Weight KG s Oval Octagon al Nominal Pipe Sizes (inches) Dimensions in Millimetres R R R R R Notes: End flanges to API 6D and API 600 use ring joints for equivalent pipe size under ASME/ANSI B16.5 or ASME B16.47 series A

15 USA India India Location Noble Engineers J3, MIDC, Gokul Shirgaon, Kolhapur , Maharashtra, India. Phone No.: United States Location 10925, Briar Forest Dr. Apt. # 2117, Houston, TEXAS USA sales@nobleengineers.com info@nobleengineers.com engineers.noble@gmail.com