EEMUA 145 PDF

Besides eemua flanges , Shihang also produces copper nickel pipe , copper nickel flanges and fittings. Shihang ,copper nickel pipe flanges manufacturer and supplier , also produce copper nickel eemua composite weld neck flanges , as one of the world class copper nickel pipe line. Section 3. The short components type S are based on DIN but modified to suit the appropriate tube wall dimensions. The long stub ends have been included to facilitate the attachment of this type of flange to butt welding elbows, tees, and the small end of reducers.

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Besides eemua flanges , Shihang also produces copper nickel pipe , copper nickel flanges and fittings. Shihang ,copper nickel pipe flanges manufacturer and supplier , also produce copper nickel eemua composite weld neck flanges , as one of the world class copper nickel pipe line.

Section 3. The short components type S are based on DIN but modified to suit the appropriate tube wall dimensions. The long stub ends have been included to facilitate the attachment of this type of flange to butt welding elbows, tees, and the small end of reducers. Only one type of backing flange is included in Section 3. The same backing flange is required for all weld neck stub ends whether they be long or short, 16 bar or 20 bar. This type of backing flange is not suitable for use with composite slip-on stub ends.

This was considered to be a practical and economical advantage within the industry. The dimensions of backing flanges are governed by the strength required to resist the bolting forces which may occur on bolting up. This Specification does not specify hydraulic test pressures for flanges or components, details of which should be obtained from the appropriate application standards.

If a stub end rated at 16 bar is required to be connected to a stub end rated at 20 bar then that flanged joint shall be rated at 16 bar see Tables 12 and The temperature shown for a corresponding pressure rating is considered to be the same as that of the contained fluid. Stub ends detailed in Section 3. Backing flanges detailed in Section 3. Alternative steels may be used for the backing flanges provided that they have mechanical properties equal to or better than those specified in ASTM A normalized and are acceptable to the Purchaser.

The gaskets shall not be graphited. Alternatively neoprene type gaskets with a minimum Shore hardness of not less than 75 may be used located within the bolt circle. See Section 3. The stub ends shall be visibly clean, smooth and free from defects greater than 0. All stub end jointing surfaces shall be machine finished and when compared by visual or tactile means with reference specimens, they shall comply with the values shown in Table It is not intended that instrument measurements be taken on the faces themselves and the Ra and R2 values relate to the reference specimens.

For stub ends produced by hot forging or cold forging followed by annealing, samples for determination of mechanical properties shall be selected in accordance with Table 20 of BS EN The mechanical properties so determined shall comply with the requirements of Table 17 of this Publication. Samples shall be selected from each cast for chemical analysis and shall comply with the requirements of Table 17 of this section.

For stub ends produced by friction welding using seamless tube and hot rolled or cold rolled and annealed sheet or plate, samples shall be selected as follows:. The remainder of the marking requirements shall be applied to indestructible-type labels securely attached to the component.

The labels shall be clearly and permanently marked. This Section does not make provision for routine pressure testing of stub ends.

They shall, however, be dimensionally correct and be marked in accordance with this Section. All stub ends shall be capable of withstanding without leakage or signs of distress a hydraulic pressure as follows:.

Note: Individual cast analyses shall be retained by the manufacturer see Chapter discretionary contractual clauses.

Backing flanges shall be of forged carbon steel to ASTM A normalized except that the carbon content and the carbon equivalent shall not exceed the values given in Table The outside diameters and bores of backing flanges shall be machine finished and edges shall have a radius of 3 mm in accordance with Table The face of the backing flange to be in contact with the stub ends shall be machined flat.

Samples representing each lot of backing flanges shall be selected, and subjected to testing, in accordance with the requirements of ASTM A Backing flanges shall be clearly marked with round-nose steel stamps around the rim. Backing flanges shall be clearly marked as follows:.

Backing flanges shall be visually examined for defects and irregularities in the protective coat. Unless otherwise specified by the Purchaser flanges shall be protected against corrosion during transit and storage according to the following procedure:.

Shihang , copper nickel flanges manufacturer and supplier , also produce copper nickel eemua composite slip on flanges , as one of the world class copper nickel pipe line. Shihang , copper nickel pipe flanges manufacturer and supplier , also produce copper nickel weld neck flanges , as one of the world class copper nickel pipe line solutions supplier.

Impurities are elements other than copper including silver iron. Shihang , copper nickel flanges manufacturer and supplier , also produce copper nickel slip on flanges , as one of the world class copper nickel pipe line solutions supplier.

Shihang has been approved by Bureau Veritas. Third Party Inspection Available. If the end user require third party inspection for eemua flanges , it is available. They all appreciate our eemua flange dimension and other performance are very good.

Shihang exported eemua flanges for more than10 years and no any complaint from the end user. We have own testing laboratory and strong ability of QC for make sure our eemua flanges meet the end users' requirement. Issue EN Each order , our mill test certificate as per EN 3. Confirm our products are totally meet with your requirements. Shihang manufactures high-quality eemua flanges to top brands in different industries. Let Shihang Support Your Bussiness. Product Details. If you are find the eemua flanges, you are at the right place.

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This Specification does not specify hydraulic test pressures for flanges or components, details of which should be obtained from the appropriate application standards. If a flange rated at 16 bar is to be connected to a flange rated at 20 bar then that flanged joint shall be rated at 16 bar. The temperature shown for a corresponding pressure rating is considered to be the same as that of the contained fluid. The gaskets shall not be graphite. Neoprene type gaskets with a minimum Shore hardness of not less than 75 may be used.

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