Description Vertical Pointer Variable Area Flowmeter | QTLZ Table 1: Vertical Pointer Variable Area Flowmeter Data Sheet Measuring range Water (20℃) 16~150000 l/h. Air(0.1013MPa 20℃) 0.5~4000 m3/h. Range ratio 10:1(Special type 20:1). Accuracy class 2.5(Special type 1.5% or 1.0%). Working pressure DN15~DN50 PN16 (Special type 2.5MPa). DN80~DN150 PN10 (Special type 1.6MPa). Pressure rating of jacket 1.6MPa. Medium temperature Normalised type -80℃~ 220℃. High-temperature type 300℃. Lined with FEP type ≤85℃. Ambient temperature -40℃~ 120℃(Remote display without LCD≤85℃). (Remote display with LCD≤70℃). Dielectric viscosity 1/4” NPT, 3/8” NPT 1/2” NPT≤5mPa.s 3/4” NPT,1” NPT ≤250mPa.s Output Standard signal: two-wire system 4 ~ 20mA (with HART communication). Standard signal: three-wire system 0 ~ 10mA. Alarm signal: Two-way relay output. 2. One-way or two-approach switches. Pulse signal output: 0-1KHz isolated output. Process connection Standard type:24VDC±20%. AC type:220VAC(85~265VAC) (optional). Connection mode Flange Thread Tri-clamp Levels of protection IP65/IP67. Ex-mark Intrinsically safe: ExiaIICT3~6. Exd type: ExdIICT4~6. Table 2: Vertical Pointer Variable Area Flowmeter Flow Range Caliber (mm) Work number Flow range Pressure loss kpa Water L/h Air m3/h Water Kpa Air Normal type Anti-corrosion type Normal type Anti-corrosion type Normal type Anti-corrosion type 15 1A 2.5~25 — 0.07~0.7 6.5 – 7.1 1B 4.0~40 2.5~25 0.11~1.1 6.5 5.5 7.2 1C 6.3~63 4.0~40 0.18~1.8 6.6 5.5 7.3 1D 10~100 6.3~63 0.28~2.8 6.6 5.6 7.5 1E 16~160 10~100 0.48~4.8 6.8 5.6 8.0 1F 25~250 16~160 0.7~7.0 7.0 5.8 10.8 1G 40~400 25~250 1.0~10 8.6 6.1 10.0 1H 63~630 40~400 1.6~16 11.1 7.3 14.0 25 2A 100~1000 63~630 3~30 7.0 5.9 7.7 2B 160~1600 100~1000 4.5~45 8.0 6.0 8.8 2C 250~2500 160~1600 7~70 10.8 6.8 12.0 2D 400~4000 250~2500 11~110 15.8 9.2 19.0 40 4A 500~5000 300~3000 12~120 10.8 8.6 9.8 4B 600~6000 350~3500 16~160 12.6 10.4 16.5 50 5A 630~6300 400~4000 18~180 8.1 6.8 8.6 5B 1000~10000 630~6300 25~250 11.0 9.4 10.4 5C 1600~16000 1000~10000 40~400 17.0 14.5 15.5 80 8A 2500~25000 1600~16000 60~600 8.1 6.9 12.9 8B 4000~40000 2500~25000 80~800 9.5 8.0 18.5 100 10A 6300~63000 4000~40000 100~1000 15.0 8.5 19.2 150 15A 20000~100000 — 600~3000 19.2 — 20.3 Table 3: Vertical Pointer Variable Area Flowmeter Model Selection QTLZ X X X X X X X X X Indicator Code Local indicator Z LCD indicator with output D Nominal diameter Code DN15 -15 DN20 -20 DN25 -25 DN40 -40 DN50 -50 DN80 -80 DN100 -100 DN150 -150 Structure Code Bottom-top / Left-right (horizontal) H1 Right-left (horizontal) H2 Side-side AA Bottom -side LA Thread connection S Tri-clamp M Body material Code 304SS R4 316LSS R6L Hastelloy C Hc4 Titanium Ti Liner F46(PTFE) F Monel M Indicator type Code Iinear indicator(pointer indication) M7 Nonlinear indicator(LCD Display) M9 Combination function(only for LCD display) Code 24VDC with 4~20mA output S 24VDC with HART communication Z Battery power D Additional function Code Measuring tube with thermal preservation/heat insulation jacket T Measure medium temperature higher than 120.C HT Ex-proof: Code With W Without N Alarm Code One alarm K1 Two alarm K2 None N Vertical Pointer Variable Area Flowmeter | QTLZ
