RAY FS WP MID

RAY FS WP MID

MECHANICAL FLOW SENSOR

RAY FS WP is a Woltman volume measuring device with a built-in pulse transmitter to measure heat for billing hot water consumption (max. 120°C). Its helix axis is parallel to the pipe ensuring low resistance to flowing and limited pressure loss.

  • MI004 approval in class 2 with dynamic range 10:1 (qp:qi)
  • Complete range from DN50 qp 15 m3/h to DN200 qp 200 m3/h
  • Remote transmission of quantities of flow (3 m cable), compatible with calculators with pulse input
  • Installation in any position
  • Register can be rotated as required for easier reading
  • Very low pressure loss
  • Encapsulated and waterproof meter
  • As a safeguard against magnetic influences, a sealable anti magnetic screen is fitted on the meter
  • Temperature range: 10°C to 120°C
  • General
    ApplicationHeating
    Mounting positionAny position
    Medium temperature range°C10 ... 120
    Medium temperature range with counter extension°C
    Ambient temperature°C5 ... 55
    Ambient classE1 + M1
    Nominal pressurePNbar161
    Protection classIP 54
    ApprovalMID (DE-15-MI004-PTB004)
    1 special version on request
  • Technical data
    Nominal diameterDNmm506580100125150200
    Nominal flow rateqpm3/h1525325080200200
    Overload flow rate (short term)m3/h606090180250400500
    Maximum flow rateqsm3/h303045100150300300
    Minimum flow rateqim3/h1.52.53.2582020
    Starting flow ratel/h1301304004006001,5002,000
    Pressure loss at qpΔpbar0.020.020.010.030.030.050.002
    Flow resistance coefficient Zeta0.90.90.651.91.810.13
    Pulse value reed switch 1l/pulse1001001001001001,0001,000
    Dynamic range 2qp / qi10:110:110:110:110:110:110:1
    1 other pulse values on request
    2 other qp / qi on request
  • Display range
    Nominal diameterDNmm506580100125150200
    0.5 l ... 999,999 m³
    0.5 l ... 100,000,000 m³
    5.0 l ... 9,999,999 m³
    50 l ... 99,999,999 m³
  • Dimensions
    Nominal diameterDNmm506580100125150200
    Overall lengthLmm200200225250250300350
    Flange diameterDmm165185200220250285240
    Hole circle diameterKmm125145160180210240295
    Number of screwholespcs4488888 / 12
    Screwhole diameterD1mm18181818182222
    HeightHmm7582.594110125135163
    Height (without counter extension)H1mm141141141200200244244
    Height (with counter extension)H1mm182182182240240284284
    DiameterØBmm150150150220250285340
    Weightkg11.111.612.519.822.43949
  • Pressure loss graph / Typical error graph
    Pressure loss graphTypical error graph