differential pressure device orifice plate with carrier rings this orifice plate is widely used for measuring liquid, steam, and gas in low or medium pressure, lines. tapping of differential pressure is done by comer tap method with differential pressure tapping rings having carrier rings. one set is composed of differential pressure tapping rings, an orifce plate, and a gasket. carrier rings are installed to average the differential pressure inside the rings. specifications type: corner taps calculation standard: according to concentric edge jis z 8762-1995 (iso 5167-1:1991) nominal pipe size: 25a to 300a these orifice plates with carrier rings can be supplied for nominal pipe sizes up to 1000a. type fvb orifce plate is recommended for sizes 400a and above. materials of main elements: ring; ss400, sf440a, sus304, sus316 or pvc orifce plate; sus304, sus316 or pvc differential pressure tapping pipe; st p g 3 7 0 , s u s 3 0 4 o r sus316 differential pressure outlet fange; ss400, sf440a, sus304 or sus316 gasket: valqua (refer to table 1) mount direction: horizontal vertical (down to up) vertical (up to down) please specify in the specifcation sheet. connection method: connection fange; jis 5, 10, 20, 30k ansi 150, 300, 400lb use single-part orifice plate (type fve) for fange standard of jis 40k, ansi 600lb or higher. operating conditions: max. pressure; 3mpa {30.59kgf/cm 2 } or less temperature range; ?10 to 300c (depends on the kind of fuid) differential pressure outlet size: r1/2 jis 15a welded type flange standard; jis 5k 15a rf jis 10k 15a rf jis 20k 15a rf jis 30k 15a rf data sheet fva EDS6-50I date apr. 1, 2011 < table 1 > type application rating (about) no. 6500ac (non-asbestos) general use 3mpa, 100c no. 7020 (tefon) for no oil treatment 1.5mpa, 200c no. gf300 (graphite compound) for high temp. high press. * 3mpa, 230c no. 6590t (pure graphite) for high temp. high press. * 20mpa, 400c * non-standard ffi system
fva 2 code symbols notes: (1) combination of orifce plates and rings (2) with ring material ss400: pressure rating for (pipe) fange 10k working temperature 300c (3) with ring material pvc: working pressure 2k working temperature 50c (4) designate material sus304 or sus316 (code s or w) for orifce plates and rings in case of no oil treatment. orifice plate ring s e f s w v w v v f a 2 - 10 2 1 3 4 5 6 7 8 11 12 13 9 description 0 y b d e f g h j k l m n p q r s t u a v w x c p j k l a b c z e f s w v s w v 0 0 2 5 to 0 3 0 0 (3) (2) (3) (4) application general use material of orifice plate sus304 sus316 pvc flange standard jis 5k jis 10k jis 20k jis 30k ansi 150lb ansi 300lb ansi 400lb other flange standard material of ring ss400 sf440a sus304 sus316 pvc stpg stpg sus304 sus316 pvc nominal pipe diameter (a) enter pipe diameter in 4th to 7th digits material of differential pressure tapping pipe none none none none none none none none none none none none none none none none none none no oil treatment no oil treatment no oil treatment no oil treatment no oil treatment r1/2 21.7mm welded type flange jis 5k (ss400) flange jis 10k (ss400) flange jis 20k (ss400) flange jis 30k (ss400) flange jis 5k (sf440a) flange jis 10k (sf440a) flange jis 20k (sf440a) flange jis 30k (sf440a) flange jis 5k (sus304) flange jis 10k (sus304) flange jis 20k (sus304) flange jis 30k (sus304) flange jis 5k (sus316) flange jis 10k (sus316) flange jis 20k (sus316) flange jis 30k (sus316) r 1/2 flange jis 5k (sus304) flange jis 10k (sus304) flange jis 20k (sus304) flange jis 30k (sus304) treatment differential pressure outlet size
3 outline diagram (unit: mm) nominal pipe diameter (a) a 5k 25 63 71 71 76 0.2~0.4 65 2 33 32 75 81 81 86 0.3~0.5 65 2 33 40 80 86 86 97 0.3~0.5 65 2 33 50 90 101 101 111 0.5~0.8 65 2 33 65 115 121 121 137 0.5~0.8 66 3 34 80 126 131 137 147 0.5~0.8 66 3 34 90 136 141 147 160 0.5~0.8 66 3 34 100 146 156 162 170 0.8~1.2 66 3 34 125 181 187 200 205 0.8~1.2 66 3 34 150 211 217 235 248 0.8~1.2 66 3 34 200 257 267 280 293 1.5~2.0 67 4 35 250 322 330 353 357 4 67 4 35 300 367 375 403 417 4 67 4 35 10k 20k 30k e w t p
fva ordering information 1. code symbols 2. kind, composition and density of fuid 3. temperature, pressure, relative humidity and viscosity (heat insulation index for gas) of fuid 4. flow rate (maximum, normal, minimum) 5. instrument scale 6. inside diameter (measured value) and material of piping 7. type and maximum differential pressure (for existing instrument) of transmitter to be connected 8. size of pipe fange for insertion of orifce 9. permanent pressure loss and other restricted items (when ordering, please specify the above items in the speci - fcation sheet.) printed in japan caution on safety *before using this product, be sure to read its instruction manual in advance. international sales div sales group gate city ohsaki, east t ower , 1 1-2, osaki 1-chome, shinagawa-ku, t okyo 141-0032, japan http://www .fujielectric.com phone: 81-3-5435-7280, 7281 fax: 81-3-5435-7425 http://www .fjielectric.com/products/instruments/ information in this catalog is subject to change without notice.
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