4" Woltmann Helix Water Meter, Pulse Output, Epoxy-Coated Cast Iron, Accuracy Class B, Resistant Seals, Cubic Meter, Non-Potable Use

DescriptionGOATACURA 4"" Lead‑Free Woltman Helix Water Meter (DN100) is designed to meet the flow measurement needs of industrial facilities, manufacturing plants, and large‑scale water management systems. It combines robust construction with measurement precision and ready compatibility with automation equipment. Meter Size: 4"" (DN100) Meter Body: Cast Iron with Lead‑Free Epoxy Coating Measuring Unit: Cubic Meters (m³) Drive System: Magnetic Coupling Register: Dry Dial, Hermetically Sealed Pulse Output: 0.1 m³ per pulse Output Type: 2‑Wire Dry Contact Reed Switch (Volt‑Free) Electrical Ratings: Max 0.01A, 24V AC/DC Accuracy Class: ISO 4064 Class B (R50) Water Temperature: 0.1℃ – 40℃ (Cold Water) / 0.1℃ – 90℃ (Hot Water) Max Pressure: ≤ 1.0 MPa Seal Material: Viton (Hydrocarbon‑Resistant) Installation Requirement: Upstream ≥10D, Downstream ≥5D Flow Rate (Qn): 15 m³/h Pressure Rating (PN): 16 bar Unit Conversion: 1 m³ = 264 Gallons

• High‑Strength Cast Iron Body with Protective Coating – The meter housing is constructed from durable cast iron and finished with a lead‑free epoxy layer. This combination delivers excellent resistance to corrosion and mechanical stress, ensuring stable performance over many years of use in industrial environments.
• Accurate Flow Measurement (ISO 4064 Class B) – Built on the Woltmann helix principle, the turbine aligns with water flow to reduce turbulence and pressure loss. Accuracy meets ISO 4064 Class B standards: within ±2% in the upper flow range and ±5% in the lower range. Provides reliable data for process monitoring and resource management.
• Built‑in Pulse Output for System Integration – Fitted with a two‑wire dry contact reed switch, the meter generates one signal pulse for every 0.1 cubic meter of water passing through.It can be easily integrated into automation system, which is very suitable for applications that need remote data collection and analysis.
• Reliable Sealing & Clear Display – Equipped with Viton seals that resist hydrocarbons and aggressive chemicals commonly found in industrial settings. The fully sealed dry dial stays free from fog, scale, and moisture, guaranteeing unobstructed readings without regular maintenance.
• Service‑Friendly Design & Multiple Mounting Options – The register and internal mechanism can be accessed and removed without interrupting pipeline flow, simplifying inspection and servicing. Supports horizontal installation (dial up or sideways) and vertical installation with upward flow. For best results, ensure sufficient straight pipe runs upstream and downstream.