Rotameters. Variable Area Flow Meters

Transcription

1 Variable Area Flow Meters Rotameters General Size: ⅜ 2½ Total Flow Range:. 264 gpm Tube Material: PA, PSU, PVC transparent Seal: EPDM, FPM Float: PVDF, PVDF-HP transparent En Connection: Solvent cement socket, threae, flange, fusion spigot union, fusion socket union Key Certifications an Conformity FDA CFR : PP an PVDF FDA CFR : EPDM an FPM FDA CFR : PTFE USP 25 Class VI (physiological non-toxic): PP an PVDF VDE/VDI 353: Accuracy class 4 Optional Features imit Switches: Mechanical Float Position Sensor: 4-2mA Scale: Custom scales available upon request En Connection: Alternatives available upon request Face Seals: Alternatives available upon request Cleane: Silicone free/oil free Material Specification PVC components shall meet ASTM D784 cell classification 24 stanars. CPVC components shall meet ASTM D784 cell classification B stanars. PP components shall meet ASTM D cell classification PP5B6685 stanars. ABS valves shall meet ASTM D3965 cell classification stanars. PVDF components shall be type, grae 2 accoring to ASTM D3222 stanars. Rotameters of all materials shall be RoHS compliant. Definition of Type Type Connection 2 Description 336 IPS Stanar tube, 335 mm 335 Metric Stanar tube, 335 mm 335-HP Metric UPW tube, 335 mm 35 Metric Stanar tube, 35 mm 87 IPS Short tube, 2 mm 87-HP Metric UPW tube, 2 mm Not etaile in this ocument 2 Stanar connection stanar liste, alternatives available upon request 27

2 Definition of SK All rotameter tubes, accessories, complete assemblies as well as many spare parts have an associate SK number. This number is use to efine component compatibility. Please note that only proucts with the same SK number are compatible with each other. Important: The UPW Rotameter Family oes not completely follow this structure in that the UPW SK numbers shoul only be use for sizing electronic feeback accessories. The UPW subcomponents are specifically esigne for this prouct line an iffer from the stanar subcomponents. Optional scales, unless specifically esigne for the UPW tube, will therefor not rea accurately. Components Components Flow Ranges The following tables etail the available scale ranges in gal/min within each rotameter family base on water applications at 68º F. : Scale Range Size (inch) (mm) SK Scale Range (gpm) ¼ ¼ ½ ½ ½ ½ ½ ½ Type 87: Scale Range Size (inch) (mm) SK Scale Range (gpm) ⅜ ⅜ ⅜ ½ ½ ½ Part Description Material Union Nut PVC, PVDF 2 Union En PVC, CPVC, PP, PVDF 3 Union O-ring EPDM, FPM 4 Top Insert PVDF, 5 Float PVDF, PVDF transparent 6 Tube PSU, PA, PVC transparent 7 Flow Inicator Bracket PS 8 Guie Ro PEEK, SS, PVDF coate SS 9 Bottom Insert PVDF Require for rotameters SK3-42 only UPW Scale Range (mm) SK Type Scale Range (gpm) HP HP HP HP HP HP HP HP HP HP Measurement Accuracy Base on water applications at 68º F. Flowrate (% of Scale) Measure Error (%) Measure Error (Engineering Units) In accorance with VDE/VDI 35, Accuracy Class 4 28

3 Optional Scales Units 335/ UPW gpm - l/h - Percent (-%) - m 3 /h - - l/h, NaOH 3% - l/h, NaOH 5% - l/h, HC 3% - Nm 3 /h, Air - Important: The efine Flow Ranges for each family of rotameter are accurate for water at 68 F with gpm as the unit of measurement. The equivalent l/h or m3/h scale range can be calculate using these tables an converting the unit of measurement. The optional chemical an air scale ranges shown at left are not irectly convertible using this same metho because of the changes in meia properties. Please consult GF for correct scale ranges for these types of scales. Pressure Temperature Curves The following graphs are base on a 25 year lifetime water or similar meia application PVC CPVC PP/PPn ABS PVDF s Pressure-Temperature Material Temperature Range (ºF) Max PVC 32 to 4 CPVC 32 to 76 PP/PPn 32 to 76 ABS -4 to 4 PVDF -4 to 284 PA 32 to 4 PSU 32 to 94 An assembly s rate temperature range is constraine to the limiting material s range. Both the tube an en connection material nee to be consiere when etermining the full assembly temperature range. 29

4 Pressure oss The following information is base on water applications at 68º F. Pressure loss is constant over the scale range. Type 87 Size (inch) (mm) SK Pressure oss (psi) ⅜ ⅜ ⅜ ½ 2.2 ½ ½ UPW (mm) SK Type Pressure oss (psi) HP HP HP HP HP HP HP HP HP HP.68 Size (inch) (mm) SK Pressure oss (psi) ¼ 4.33 ¼ ½ ½ ½ ½ ½ ½ Correction Factors Correction factors are use when application parameters iffer from those at which the provie scale was calibrate to. All GF scales are calibrate at 68º F with water, a specific chemical meia (HC, NaOH) or air as the meia epening on the scale. If system conitions iffer from these parameters an operator can multiply the scale reaing by the correction factors liste below to etermine the actual flow volume. iqui Specific Gravity Correction Factor Temperature Operating Temperature (ºF) Correction Factor Gas Meia Density (kg/m 3 ) Correction Factor Air.293. Oxygen Nitrogen.25.7 Ammonia Acetylene.7.5 Chlorine Hyrogen Carbon Dioxie Sulphur Dioxie Coal Gas Propane

5 Dimensions The following tables are shown in millimeters unless otherwise specifie : All Materials Size (inch) (mm) SK D ¼ ¼ ½ ½ ½ ½ ½ ½ D 2 Size (inch) SK PVC CPVC IPS Socket Threae NPT IPS Socket Threae NPT ¼ ¼ ½ ½ ½ ½ ½ ½ ABS Metric Socket (mm) SK PP PVDF Metric Socket IR/Butt Fusion Threae NPT Metric Socket IR/Butt Fusion Threae NPT (mm) SK e e

6 Dimensions The following tables are shown in millimeters unless otherwise specifie Type 87: All Materials Size (inch) (mm) SK D 2 ⅜ ⅜ ⅜ ½ ½ ½ Type 87 PVC/CPVC ABS Size IPS Socket Threae NPT Metric Socket (inch) SK ⅜ ⅜ ⅜ ½ ½ ½ D 2 Type 87 PP Metric Socket IR/Butt Fusion Threae NPT (mm) SK e UPW PVDF-HP IR/Butt Fusion Spigot (mm) SK D e Type 87 PVDF Metric Socket IR/Butt Fusion Threae NPT (mm) SK e