The Sensus WP-Dynamic hot-water meter is a Woltmann/turbine flow sensor for the measurement of high, relatively constant flow rates of hot water up to 130 °C, used as a flow sensor in heat-metering and hot-water distribution systems. It shares the WP-Dynamic hydraulic platform — a patented hydrodynamically balanced rotor and symmetrical calibration adjustment — with a hermetically sealed register that can be rotated through 360° for easy reading.

Features & Specifications

• Turbine (Woltmann) flow sensor for hot water up to 130 °C, PN16

• Size range DN40–DN315; performance to PTB-A22 metrological class B

• Patented hydrodynamically balanced rotor and symmetrical calibration adjustment

• Hermetically sealed register, protection class IP68, rotatable through 360°

• High overload capability; removable measuring element

• Up to three pulsers (1 × OD, 2 × RD) may be fitted without breaking the approval seal

• Powder coating for maximum corrosion protection

• Installation with 3 × DN straight pipe upstream; no abrupt restrictions downstream

• PN40 high-pressure version available (separate leaflet)

• Materials: cast-iron body, plastic measuring element and rotor, brass and stainless steel; ISO 9001 manufacture

Dimensions & Technical Data

Performance (130 °C, PTB-A22) and dimensions, selected sizes: