B Meters GMDM-I Multi-Jet Water Meter (1" to 2" BSP)
£42.48
UK Mainland
Trade Carriage:
Parcels ≤ 20kg:
£15.00
|
Heavy Pallet > 20kg:
£65.00
(Calculated by total weight at checkout • ex-VAT)
The B Meters GMDM-I Multi-Jet Water Meter is a heavy-duty commercial multi-jet water meter designed for commercial building risers, secondary plant headers, and light industrial submetering. Built with an inductive non-magnetic dial register, the GMDM-I distributes inlet water through multiple tangential nozzles to eliminate bearing wear and guarantee long-term measuring consistency on turbulent or suspended-solids water lines.
Key Engineering Highlights:
- MID Approved (ISO 4064 R100): Certified for commercial sub-metering, landlord sub-billing, and BREEAM water monitoring compliance.
- Multi-Jet Radial Distribution: Water enters the measuring chamber through multiple symmetric orifices, balancing the turbine impeller hydraulically to prevent pivot wear.
- Anti-Fraud Inductive Dial: Pre-equipped with inductive non-magnetic target disc, making it immune to magnetic sabotage and ready for clip-on IWM modules.
- WRAS Approved Construction: Machined from high-integrity drinking water approved brass complete with dual union connections.
- Super-Dry Sealed Register: Dry mechanical register enclosed in mineral glass prevents condensation, fogging, and algae formation.
Technical Specifications
| Measurement Principle | Multi-Jet Super-Dry Dial (Hydraulically Balanced Impeller) |
| Metrology & Certifications | MID (2014/32/EU), WRAS Approved Material, ISO 4064 |
| Bore Sizes & Flows | DN25 (1" BSP, Q3 6.3 m³/h) to DN50 (2" BSP, Q3 25.0 m³/h) |
| Temperature Classification | Cold: 0°C to +50°C | Hot Water: 30°C to +90°C |
| Pressure Rating | PN16 (16 bar hydrostatic pressure) |
| Connection Type | BSPM External Threads supplied complete with brass union tailpieces and fibre gaskets |
| Measuring Turndown | R100 Horizontal / R50 Vertical |
| AMR Integration | Pre-equipped for clip-on IWM-PL3 (Pulse), IWM-MB3 (Wired M-Bus), or IWM-LR3 (LoRaWAN) |
Standards & Building Compliance
- Meets UK Building Regulations Part L and CIBSE TM39 requirements
- Approved under BS EN ISO 4064 for Class 2 accuracy
- WRAS certified for potable and drinking water systems
- Supports BREEAM Wat 02 water consumption monitoring credits