Bevel-helical gear Reduction Boxes B4 ssumed as required space for piping and monitorin B4-SH-26-D

Flender/Flender Gear Units/Bevel-helical gear Reduction Boxes B4

st and shall meet the requirements of clause 3.4 of this specification. 4.1 Repair by welding is permitted for cast body valves subject to written approval by Purchaser and shall be carried out as per ANSI B1.3. Re pair shall be carried out before any heat treatment of casting is done. 5.0 INSPECTION AND TESTS 5.1 The Manufacturer shall perform all inspection and tests as per the requirementsof this specification and the relevant code , prior to shipment at his works. Such inspection and tests shall be, bu not limited to, the following : 5.1.1 All valves shall be visually inspected. 5.1.2 Dimensional check on ll valves shall be carried out as per the Purchaser approved drawings. 5.1.3 Chemical compositions and mechanical properties shall be checked as per relevant material standards and this specification, for each heat of steel used. 5.1.4 ) Where applicable, the body castings of valves shall be ra diographically examined on 1% of the surface of critical areas as per ANSI B1.3. Procedure and acceptance criteria shall be as per ANSI B1.3. ) Where applicable, valve body made by forgin and plate componentsshall be ultrasonically examined in accordance with procedure and acceptance standard of Annexure of ANSI B1.3. ) The extent of radiography/ ultrasonic examination shall be as follows : ANSI class 1 - All sizes - Nil ANSI class 3 - < DN 4mm ( - Nil > DN 4mm ( - 1% ANSI class 6 - All sizes - 1% 9 of 1 MECON LIMITED DelhiPROCESS & PIPING DESIGN SECTIONTECHNICAL SPECIFICATION FOR CHECK VALVES TECHNICAL SPECIFICATION NO. : ME /TS/0/6/0 REV-2 Page 5 of 8 5.1.5 All valves shall be ested in complianc with the requirements of applicable standard (refer clause 2.0). 5.2 Purchaser reserves the right to perform stage-wise inspection and witness tests as indicated in clause 5.1 above at Man ufacturers works prior to shipment. Manufacturer shall give reasonable access and facilities required for inspection to the Purchasers Inspector. Purchaser reserves the ri