API IP Spec 1590-2002 pdf free download
API IP Spec 1590-2002 pdf free download.SPECIFICATIONS AND QUALIFICATION PROCEDURES FOR AVIATION FUEL MICROFILTERS.
3.2.3.2 Design codes Microfilter vessels shall be designed and constructed to conform to the latest issue of the ASME Boiler and pressure vessel code, Section VIII: Rules for construction of boilers and pressure vessels, or other recognised equivalent pressure vessel code agreed by the purchaser. 3.2.3.3 Design pressure Unless otherwise specified by the purchaser the vessel design pressure shall be no less than 1 035 kPa (150 lbf/in2). The element mounting assembly shall be designed to withstand a differential pressure no less than 750 kPa (110 lbf/in2) in the direction of normal flow. Note: For applications where the microfilter may be converted to a filter monitor, the purchaser should specify the design differential pressure of the element mounting assembly. (Compliance with API/IP 1583 is recommended.) 3.2.3.4 Hydrostatic test pressure Each microfilter vessel body shall be hydrostatically tested to 1 550 kPa (225 Ibf/in2) or 1,5 times the design pressure specified by the purchaser. The upstream side of the mounting assembly shall be hydrostatically tested with all ports sealed to a test pressure of no less than 750 kPa (110 lbf/in2). Note: For applications where the microfilter may be converted to a filter monitor, the purchaser should specify the hydrostatic pressure testing requirement (all ports sealed) of the mounting assembly. (Compliance with API/IP 1583 is recommended.)
Ports having a parallel thread shall have a smooth external face and dimensions suitable for fittings with integral O-ring face seals and those utilising bonded sealing washers (e.g. Dowty and Stat-O-Seal types). Weld beads on vertically installed half couplings or pipe stubs shall not protrude internally or otherwise contribute to the concentration of contaminants. 3.2.3.7 Vent and pressure relief ports A port shall be provided at the highest fuel flow point of the vessel for installation of an air eliminator. A pressure relief valve connection port shall also be provided. 3.2.3.8 Pressure measurement ports Ports shall be provided for connecting appropriate pressure gauges to measure the differential pressure between the inlet and outlet piping connections. 3.2.3.9 Element spacing Elements shall not contact other elements or vessel walls. For applications where the microfilter may be converted to a filter monitor, the design layout of elements in the vessel shall, unless otherwise specified, provide a minimum separation of 13 mm (0,5 in.) between elements and between the vessel wall and any element. 3.2. 3.10 Element mounting For vessels designed to accept elements with flat end gaskets (face seal), the mounting surface shall incorporate a blunted V-shaped knife edge 1,5 mm high (0,06in.)+10 %/ !0 %. Proprietary adapters for threaded base elements shall meet this requirement.
3.2.3. I5 Drain and sample ports Sample ports shall be provided to permit the taking of influent and effluent fuel samples under flow conditions. W ater/sample drains shall be provided at the low points of the inlet and outlet compartments and to the deck plate if applicable. 3.2.3. 16 Branch and port marking Inlet and outlet branches, together with all other ports should be clearly labelled to indicate their intended function. Engraving or stamping is not acceptable unless it is deep enough to avoid being obliterated by several coats of paint and is in accordance with any limitations imposed by the design code. 3.2.3. 17 Data plates A permanent stainless steel or nonferrous metal data plate shall be securely attached to the vessel. This plate shall include, as a minimum, the vessel manufacturer’s name and address, vessel serial number, unit and model number, date of manufacture, construction code, design pressure, hydrostatic test pressure for the vessel and the element mounting assembly (deck plat), APIP Specification Number, operational temperature range, and vessel cover gasket material and part number. A second securely attached removable plastic or metal data plate shall show the name and address of the element manufacturer, the API/IP Specification Number, the model number of elements, the quantity of elements, the rated flow capacity, the recommended maximum differential pressure for the elements, the recommended assembly torque and any other pertinent data. .
