Product Overview
Industrial-Grade Flanged Stainless Steel Multi Jet Water Meter – High-Precision Flow Measurement for Heavy-Duty Applications
This robust flow meter combines flanged construction with advanced multi-jet technology, engineered for permanent installation in demanding industrial, municipal, and commercial pipeline systems. The stainless steel housing (304/316/316L grades available) delivers exceptional resistance to corrosion, erosion, and mechanical stress, ensuring reliable operation for decades in aggressive environments. Flanged ends conform to major international standards (ANSI 150/300, PN10/16/25/40, JIS 10K/20K), providing secure, leak-tight connections that withstand high pressure and thermal cycling. The meter undergoes rigorous performance testing and maintains stable accuracy across a wide flow range without requiring straight pipe runs. Whether deployed in water treatment plants, power generation facilities, chemical processing lines, or district heating networks, this meter delivers maintenance-free operation and precise measurement.

Key Features
- Premium Stainless Steel Construction – Housing manufactured from select alloys (304, 316, or 316L) to match specific water chemistry, temperature requirements, and environmental exposure levels; material test certificates available upon request.
- Multi-Standard Flange Compatibility – Drilled to mate with all major flange systems: ANSI B16.5: Class 150, Class 300; EN 1092-2: PN10, PN16, PN25, PN40; JIS B2220: 10K, 20K
- Custom bolt hole configurations available for specialized applications
- Multi-Jet Measuring Principle – Water enters through multiple precision-angled ports, creating a balanced flow that drives the rotor uniformly. This design maintains accuracy even with upstream flow disturbances and eliminates straight pipe requirements.
- Wide Rangeability – Available with turndown ratios of R80, R100, or R160, accommodating everything from minimal nighttime leakage to peak demand flows without accuracy degradation.
- Comprehensive Size Range – Produced in nominal diameters from DN50 to DN300 (2" through 12"), covering flow rates from 15 to 1000 m³/h.
- Magnetically Coupled Register – Eliminates dynamic shaft seals, preventing leaks while protecting the gear train from water-borne abrasives. The hermetically sealed dry dial remains fog-free in humid environments.
- High-Pressure Capability – Standard construction rated to 1.6 MPa (16 bar); optional reinforcements available for 2.5 MPa (25 bar) and 4.0 MPa (40 bar) applications.
- Remote Monitoring Integration – Optional electronic outputs (reed switch, hall effect sensor, RS485 Modbus, M-Bus, LoRaWAN, NB-IoT) enable seamless integration with SCADA, telemetry, and AMR systems.

Typical Applications
This meter series serves a broad spectrum of applications requiring flanged connections and stainless steel durability:
| Industry Sector | Application Examples |
|---|---|
| Municipal Water Supply | Distribution network master meters, pressure zone monitoring, raw water transmission, treatment plant inlet/outlet |
| Industrial Process | Cooling water circuits, boiler feed water, make-up water lines, process effluent, utility monitoring |
| Power Generation | Cooling tower makeup, condenser circulation, ash handling systems, demineralized water distribution |
| Chemical & Petrochemical | Utility water, reactor jacket cooling, dilution water, solvent handling (with 316/316L construction) |
| Mining & Minerals Processing | Process water, dewatering lines, slurry transport (with appropriate material selection), dust suppression systems |
| Food & Beverage | Ingredient water, CIP supply, cooling lines, utility monitoring (non-product contact applications) |
| Pharmaceutical | Utility water, HVAC make-up, cooling systems (non-product contact) |
| HVAC & District Energy | Chilled water distribution, condenser water loops, thermal plant metering, geothermal systems |
| Agriculture | Large-scale irrigation, livestock water supply, greenhouse networks, aquaculture |
| Fire Protection | Standpipe systems, sprinkler mains, fire pump test lines, reservoir level monitoring |

Operating Principle & Supply Conditions
Measurement Method:
Flow enters the meter through the inlet flange and passes through an integrated strainer (or optional external strainer) before reaching the measuring chamber. Multiple tangential jets direct water at specific angles against a precision-engineered rotor, creating proportional rotational speed. This rotation is transmitted through a magnetic coupling to a sealed register, completely isolating the counting mechanism from the water stream. The self-cleaning action of the multi-jet design prevents sediment accumulation and ensures long-term accuracy.
Supply Terms:
Minimum Order Quantity: Single units available for evaluation; volume pricing for quantities ≥10 pieces.
Production Timeline: 10–18 working days for standard flange configurations; 25–35 days for custom bolt patterns, special materials, or OEM specifications.
Packaging Method: Individual protective wrapping within reinforced cartons; wooden crates with foam inserts for large diameters (≥DN150) or bulk shipments; export-worthy packaging standard.
Accepted Payment Methods: Wire transfer (T/T), confirmed irrevocable letter of credit (L/C), PayPal for sample orders, Alibaba Trade Assurance.
Global Logistics: Ocean freight (FCL/LCL), air cargo, or express courier (DHL, FedEx, UPS, TNT) arranged door-to-door with complete documentation.

Technical Specifications
| Parameter | Value |
|---|---|
| Measuring Principle | Multi-jet, rotary impeller with magnetic drive transmission |
| Accuracy Class | High-precision design exceeding general industrial requirements |
| Rangeability (R) | 80 / 100 / 160 (specify at time of order) |
| Flow Disturbance Sensitivity | Low; installation tolerates bends, valves, and fittings within 5D upstream; no straight pipe sections required |
| Pressure Drop | < 0.063 MPa (0.63 bar) at continuous flow (Q3) |
| Register Sealing | IP68 (permanent submersion), nitrogen-filled to prevent internal condensation |
| Magnetic Immunity | Unaffected by external magnetic fields up to 200 kA/m (anti-magnetic design) |
| Temperature Range – Standard | Cold water: 0.1°C to 50°C; Hot water: 0.1°C to 90°C |
| Temperature Range – Optional | High-temperature construction: up to 150°C for thermal oil, superheated water, or specialized processes |
| Working Pressure | Standard: 1.6 MPa (16 bar) |
| Flange Face Configuration | Raised face (standard), flat face (optional), ring-type joint (RTJ) available for high-pressure ratings |
| Body Material Options | 304 stainless steel / 316 stainless steel / 316L stainless steel |
| Wetted Parts Materials | Full stainless steel or stainless steel with food-grade polymers (measuring chamber optional) |
| Surface Finish | As-cast (standard); machined finish available for gasket seating surfaces |
Flange Dimensions
1. European Standard Flange Dimensions (EN 1092-1, PN16)
| Nominal Size | Flange Outer Diameter (D) | Bolt Circle Diameter (K) | Bolt Hole Diameter (L) | Number of Bolts | Flange Thickness (C) |
|---|---|---|---|---|---|
| DN15 (1/2") | 95 mm | 65 mm | 14 mm | 4 | 14 mm |
| DN20 (3/4") | 105 mm | 75 mm | 14 mm | 4 | 16 mm |
| DN25 (1") | 115 mm | 85 mm | 14 mm | 4 | 16 mm |
| DN32 (1.25") | 140 mm | 100 mm | 18 mm | 4 | 16 mm |
| DN40 (1.5") | 150 mm | 110 mm | 18 mm | 4 | 16 mm |
| DN50 (2") | 165 mm | 125 mm | 18 mm | 4 | 18 mm |
| DN65 (2.5") | 185 mm | 145 mm | 18 mm | 4 | 18 mm |
2. American Standard Flange Dimensions (ANSI B16.5, Class 150)
| Nominal Size | Flange Outer Diameter (D) | Bolt Circle Diameter (K) | Bolt Hole Diameter (L) | Number of Bolts | Flange Thickness (C) |
|---|---|---|---|---|---|
| DN15 (1/2") | 89 mm | 60.5 mm | 15.7 mm | 4 | 11.2 mm |
| DN20 (3/4") | 98 mm | 69.9 mm | 15.7 mm | 4 | 12.7 mm |
| DN25 (1") | 108 mm | 79.2 mm | 15.7 mm | 4 | 14.2 mm |
| DN32 (1.25") | 117 mm | 88.9 mm | 15.7 mm | 4 | 15.7 mm |
| DN40 (1.5") | 127 mm | 98.4 mm | 15.7 mm | 4 | 17.5 mm |
| DN50 (2") | 152 mm | 120.7 mm | 19.1 mm | 4 | 19.1 mm |
| DN65 (2.5") | 178 mm | 139.7 mm | 19.1 mm | 4 | 22.4 mm |
3. Chinese Standard Flange Dimensions (GB/T 9119, PN16)
| Nominal Size | Flange Outer Diameter (D) | Bolt Circle Diameter (K) | Bolt Hole Diameter (L) | Number of Bolts | Flange Thickness (C) |
|---|---|---|---|---|---|
| DN15 (1/2") | 95 mm | 65 mm | 14 mm | 4 | 14 mm |
| DN20 (3/4") | 105 mm | 75 mm | 14 mm | 4 | 16 mm |
| DN25 (1") | 115 mm | 85 mm | 14 mm | 4 | 16 mm |
| DN32 (1.25") | 140 mm | 100 mm | 18 mm | 4 | 18 mm |
| DN40 (1.5") | 150 mm | 110 mm | 18 mm | 4 | 18 mm |
| DN50 (2") | 165 mm | 125 mm | 18 mm | 4 | 20 mm |
| DN65 (2.5") | 185 mm | 145 mm | 18 mm | 4 | 20 mm |
Construction Details
- Body Material Options: 304, 316, or 316L stainless steel; traceable material test reports available.
- Measuring Chamber Options: Standard: High-strength engineering composite (POM) – wear-resistant, low friction; Optional: Stainless steel (304/316) – for aggressive media, high temperatures, or abrasive fluids
- Rotor Assembly: Low-friction polymer with embedded rare-earth magnets; stainless steel shaft running in self-lubricating bearings.
- Register Types:
- Mechanical: Eight-digit roller counter (magnetic drive, fully sealed)
- LCD Digital: Liquid crystal display with totalizer and instantaneous flow rate; battery-powered (8-10 year life)
- Combination: Mechanical roller with integrated electronic module
- Output Options (if equipped):
- Pulse: Reed switch (passive, Form A) or hall effect sensor (active, 5-24 VDC)
- Digital: RS485 Modbus RTU, M-Bus (Meter-Bus), pulse over LoRaWAN/NB-IoT
- Wireless: Integrated LoRaWAN or NB-IoT module for direct cloud connectivity
- Flange Configuration: Drilled to ANSI B16.5, EN 1092-2, or JIS B2220; bolt hole alignment can be rotated relative to meter centerline upon request.
- Mounting Orientation: Horizontal (register upright) or vertical (flow upward); register rotates 360° for optimal reading convenience.
- Accuracy Profile: Within ±2% from minimum flow (Q1) to continuous flow (Q3); within ±5% at overload flow (Q4).

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