Process screen basket filter PRFS PRFS- PRFS- PRFS- PRFS- PRFS- PRFS- 130x 250x 520x 650x 1500x 2500x Nominal size: Q s max: p s max: Filtration ratings: Specifications DN 50 DN 700 3600 m³/h 16 bar 25 10000 µm 1. GENERAL Product description Screen basket filter Used as coarse filter, bypass filter or pre-separator Screen basket technology Screen basket insert with bracket Wire mesh: 25 to 1000 µm Wedge wire: 50 to 3000 µm Perforated plate: 3000 to 10000 µm Product advantages High filtration efficiency Simple handling Robust filter materials are ideally suited to long-term operation Cleanable filter materials Low operating costs Numerous versions Particles cannot reach the clean side when basket is exchanged Also available as a switchable double filter Series 130x 250x 520x 650x 1500x 2500x Size Mounting dimension [DN] Technical data, filter housing Stainless steel 1) Materials Carbon steel Internal corrosion protection Without With 1303 50 / 65 / 80 / 100 / 1304 125 / 150 1305 2503 100 / 125 / 150 / 2504 200 / 250 2505 5203 5204 150 / 200 / 250 5205 6503 6504 200 / 250 / 300 6505 15003 250 / 300 / 400 / 15004 500 15005 25003 350 / 400 / 500 / 25004 600 / 700 25005 p S max [bar] 6 / 10 / 16 Ts min to Ts max² [ C] -10 to +90 Weight [kg] Volume [l] 70 26 115 46 186 118 280 225 540 440 930 1350 Technical data, screen basket inserts 1) Stainless steel: 1.4571 or similar (group 316); others on request 2) Internally coated housing T S max +60 C Higher temperature on request Series No. of screen baskets Screen basket type Total filter area Filter materials and filtration ratings [µm] Wire mesh, reinforced with perforated plate 130x 1 SK-3-2035 25 40 250x 1 SK-4-2850 60 80 520x 3 SK-3-. 6105 100 650x 4 SK-4-. 11400 150 200 1500x 7 SK-4-19950 250 500 2500x 5 SK-5-. 37000 1000 Wedge wire 50 100 200 250 300 500 1000 2000 3000 Perforated plate 3000 5000 10000 Permitted differential pressure [bar] 6 1
2. FUNCTION AND SPECIAL FEATURES FUNCTION The filter element is flooded from the inside to the outside Separated solids remain inside the screen basket Particle deposition during filtration increases pressure loss The screen baskets are removed when the maximum differential pressure is reached Clogged screen baskets can easily be emptied and cleaned with the water hose Fixed dirt can be removed with a high-pressure cleaner ACCESSORIES (OPTIONAL) Cover plate lifting device Drain and vent ball valves Various clogging indicators 3. CLOGGING INDICATORS Type Clogging indicator/differential pressure monitoring Visual PVD x B.x Image Description Visual display with green/red field Automatic reset Electrical PVD x C.x Electrical signal when trigger point is reached Switch type: normally closed or normally open Automatic reset Visual-electrical PVD x D.x /-L... Lamp for visual display Electrical signal (normally closed or normally open) Automatic reset Differential pressure gauge DS11 2 micro-switches (N/C or N/O) Switch points of the micro-switches can be adjusted from outside Measuring cell made from aluminium or stainless steel 2
4. FILTER CALCULATION* CHECKLIST FOR FILTER CALCULATION STEP 1: REQUIRED OPERATING DATA Observe Pressure Equipment Directive PED 23/07/EC Type of operating medium Viscosity Operating pressure Operating temperature Flow rate Desired filtration rating Type of solid particles to be separated Solid particle content STEP 2: FILTER SIZING Hydraulic determination of the size on basis of pressure loss curves The initial pressure difference for clean screen baskets should not exceed the following values: Operating pressure 6 bar: 0.2 bar Operating pressure > 6 to 10 bar: 0.3 bar Operating pressure > 10 bar: 0.3 to 0.5 bar Housing material selected on basis of operating data and operating medium Sealing material selected on basis of operating data and operating medium Selection of size for inlet and outlet flange Different connection sizes can be selected for each size The flow velocity of 4 m/s at the flange inlet should not be exceeded Depending on the solid particle content, screen basket filters can be deliberately oversized or undersized STEP 3: DETERMINING THE FILTRATION RATING As a basic rule: as coarse as possible as fine as necessary! CIRCUIT DIAGRAM Bypass line Shut-off valve Process inline filter Inlet Outlet Shut-off valve Shut-off valve Scope of delivery HYDAC * Please contact our Head Office if you have any queries regarding filter calculation 3
PRESSURE DROP CURVE FOR FILTER HOUSING INCL. SCREEN BASKET INSERT The curves apply for water at 20 C and other fluids up to a viscosity of 15 mm²/s. They apply for all filtration ratings. Exception: When wedge wires of filtration rating 50 µm are used, 30% of the derived pressure loss must be added. Flow in l/min Differential pressure in bar 4
5. FILTER CONFIGURATION* Flange connections Standard DIN / DIN EN DN 50 to DN 700 Optional ASME Housing manufacture AD 2000 technical data sheets / PED 97/23/EC ASME VIII Div. 1 with or without U-stamp EN 13445 Housing materials Stainless steel 1.4571 or similar (group 316) Carbon steel Others on request External corrosion protection Corrosion protection, internal 2-layer epoxy coating, not applicable for stainless steel tanks 2-component internal epoxy coating (not applicable for stainless steel tanks) PUR top coat (colour RAL 7040) RAL/Munsell colours to customer specification (for carbon-steel qualities) Various multi-layer coatings Material of internal parts and filter elements Stainless steel 1.4571 or similar (group 316) Others on request Sealing materials FPM / FKM Asbestos-free gasket Various sealing materials on request, depending on the particular medium Cover plate lifting device With cover plate lifting device Differential pressure monitoring Visual Electrical Visual-electrical Differential pressure gauge with 2 micro-switches Documentation Assembly and Operating Instructions Manufacturer s test certificates Material certificates (3.1 according to DIN EN 10204) 3rd parties (TÜV, ABS, Lloyd s, etc.) Welding procedure (WPS) / welding procedure test (PQR/WPQ) * Other versions and customised special solutions after consultation with our Head Office. 5
6. MODEL CODE MODEL CODE, PROCESS SCREEN BASKET FILTER PRFS Filter type PRFS = screen basket filter Filter material D = wire mesh (cleanable), reinforced with perforated plate DS = wire mesh (cleanable), reinforced on both sides with perforated plate S = wedge wire (cleanable) L = perforated plate (cleanable) Size 130x = DN 50 / 65 / 80 / 100 / 125 / 150 250x = DN 100 / 125 / 150 / 200 / 250 520x = DN 150 / 200 / 250 650x = DN 200 / 250 / 300 1500x = DN 250 / 300 / 400 / 500 2500x = DN 350 / 400 / 500 / 600 / 700 Final digit x 3 = stainless steel housing 1.4571 or similar (group 316) 4 = housing carbon steel + internal epoxy coating 5 = housing carbon steel without coating Type of connection (see table) F = flange to DIN followed by nominal width e.g. F100 AF = flange to ASME followed by nominal width in inches, e.g. AF8 Filtration rating in µm Wire mesh = 25 / 40 / 60 / 80 / 100 / 150 / 200 / 250 / 500 / 1000 Wedge wire = 50 / 100 / 200 / 300 / 500 / 1000 / 2000 / 3000 Perforated plate = 3000 / 5000 / 10000 Equipment 0 = without additional equipment 1 = cover plate lifting device 2 = vent and drain ball valve PRFS S 1303 AF3 10 0 1 2 So Type of clogging indicator 0 = no clogging indicator 1 = visual indicator (PVD 2 B.1) 2 = visual and electrical indicator (PVD 2 D.0 /-L...) 4 = visual/analogue clogging indicator made from aluminium with two adjustable contacts (0 4 bar) 5 = visual/analogue clogging indicator made from stainless steel with two adjustable contacts (0 4 bar) 6 = electric differential pressure switch (PVD 2 C.0) Modification number 2 Supplementary details Code number for special equipment MODEL CODE, SCREEN BASKET INSERT Screen basket design Screen basket insert with bracket Size of screen basket 3 4 5 Filter material D = wire mesh (cleanable), reinforced with perforated plate DS = wire mesh (cleanable), reinforced on both sides with perforated plate S = wedge wire (cleanable) L = perforated plate (cleanable) Filtration rating in µm Wire mesh = 25 / 40 / 60 / 80 / 100 / 150 / 200 / 250 / 500 / 1000 Wedge wire = 50 / 100 / 200 / 300 / 500 / 1000 / 2000 / 3000 Perforated plate = 3000 / 5000 / 10000 Sealing material K = Asbestos-free gasket (only for S/D/DS version) V = FPM/FKM N = NBR EP = EPDM SI = Silicone 0 = no seal for filtration rating > 500 µm SK 4 S 1000 0 6
7. DIMENSIONS PRFS 130X - 250X Removal height filter elements Air vent Clogging indicator optional Drain contaminated side Drain Values given in millimetres. Subject to technical modifications. Size DN1 DN2 b1 b2 h1 h2 h3 H1 H2 H3 L1 D1 D4 E1 E2 F1 F2 F3 F4 PRFS 130x F50 50 50 206 206 795 520 737 1058 972 219 260 340 PRFS 130x F80 80 80 206 206 795 520 737 1058 972 219 260 340 PRFS 130x F100 100 100 206 206 795 520 737 1058 972 219 260 340 500 10 22 G 1/4 G 1/2 250 320 PRFS 250x F100 100 100 250 250 965 600 870 1286 1198 273 310 390 PRFS 250x F150 150 150 250 250 965 600 870 1286 1198 273 310 390 PRFS 250x F200 200 200 250 250 965 600 870 1286 1198 273 310 390 7
7. DIMENSIONS PRFS 520X - 2500X Air vent Cover plate lifting device optional Cover plate lifting device optional Removal height filter elements Clogging indicator optional Drain contaminated side Drain Clean side Values given in millimetres. Subject to technical modifications. Size DN1 DN2 b1 b2 h1 h2 h3 H1 H2 H3 H4 L1 D1 D3 D4 E1 E2 PRFS 520x-F150 150 150 318 318 1000 635 853 1313 1225 750 1503 12 406.4 379 22 G 1 PRFS 520x-F200 200 200 320 320 1000 635 853 1313 1225 750 1503 12 406.4 379 22 G 1 PRFS 520x-F250 250 250 325 325 1000 635 853 1313 1225 750 1503 12 406.4 379 22 G 1 PRFS 650x-F200 200 200 375 375 1050 600 903 1383 1300 1000 1573 12 508 482 22 G 3/4 PRFS 650x-F250 250 250 375 375 1050 600 903 1383 1300 1000 1573 12 508 482 22 G 3/4 PRFS 650x-F300 300 300 395 395 1050 600 903 1383 1300 1000 1573 12 508 482 22 G 3/4 PRFS 1500x-F250 250 250 500 500 1140 670 977 1550 1480 1000 1998 12 711 662 22 G 1/4 G 1 PRFS 1500x-F300 300 300 500 500 1140 670 977 1550 1480 1000 1998 12 711 662 22 G 1 PRFS 1500x-F400 400 400 500 500 1140 670 977 1550 1480 1000 1998 12 711 662 22 G 1 PRFS 1500x-F500 500 500 600 600 1370 800 1105 1807 1737 1000 2255 12 711 662 22 G 1 PRFS 2500x-F500 500 500 700 700 1830 1000 1509 2342 2304 2000 2855 16 914 858 26 G 1 PRFS 2500x-F600 600 600 750 750 1865 1150 1562 2485 2347 2000 2898 16 914 858 26 G 1 PRFS 2500x-F700 700 700 750 750 2100 1150 1660 2648 2610 2000 3023 16 914 858 26 G 1 8
7. DIMENSIONS SCREEN BASKET INSERT Type S A-A A A-A A DN1 DN2 DN1 DN2 b2 b1 A Type D / DS / L b2 b1 A Values given in millimetres. Subject to technical modifications. Size DN1 DN2 b1 b2 SK-3 160 137 486 738 SK-4 187 164 566 913 SK-5 300 260 910 1619 NOTE jmthe information in this brochure relates to the operating conditions and applications described. For applications or operating conditions not described, please contact the relevant technical department. Subject to technical modifications. Process Technology GmbH Am Wrangelflöz 1 D-66538 Neunkirchen Tel.: +49 (0)6897-509-1241 Fax: +49 (0)6897-509-1278 Internet: www.hydac.com E-mail: prozess-technik@hydac.com 9