Product Overview

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Premium Stainless Steel Threaded Water Meter – Versatile Flow Measurement with Multiple Accuracy Options

This comprehensive range of stainless steel water meters is engineered for precise measurement across residential, commercial, and industrial applications. Featuring a robust 304/316 stainless steel body and advanced multi-jet measuring principle, these meters deliver exceptional reliability and longevity. The key differentiator lies in the R-value (Rangeability) – the ratio between maximum (Q3) and minimum (Q1) flow rates. We offer three distinct accuracy classes to match your specific requirements:

R-Value	Q3/Q1 Ratio	Best Suited For
R80	80:1	Standard residential metering, general water supply
R100	100:1	Enhanced precision for commercial applications
R160	160:1	High-accuracy industrial, pharmaceutical, and food processing

All models feature threaded connections (BSP/NPT) for easy installation, hermetically sealed dry dial registers for fog-free reading, and full compliance with international standards. Available in sizes DN15 through DN65 to accommodate a wide range of pipeline diameters.

Key Features

1. Material & Construction

Full Stainless Steel Body – Available in 304, 316, or 316L grades
Corrosion Resistance – Withstands aggressive water conditions and harsh environments
Lead-Free & Food-Safe – Suitable for potable water and food contact applications
Long Service Life – 3-5x longer lifespan than cast iron or brass alternatives

2. Measuring Technology

Multi-Jet Principle – Self-cleaning design with multiple tangential inlet ports
Magnetic Drive – Hermetically sealed register, no dynamic seals to leak
Low Flow Sensitivity – Accurate measurement even at minimal flow rates
Flow Disturbance Insensitive – No straight pipe required before or after meter

3. Accuracy Options (R80/R100/R160)

R-Value	Q1 (Minimum Flow)	Q2 (Transitional Flow)	Q3 (Continuous Flow)	Application
R80	0.031 m³/h	0.050 m³/h	2.5 m³/h (DN15)	Residential apartments, houses, general use
R100	0.025 m³/h	0.040 m³/h	2.5 m³/h (DN15)	Commercial buildings, schools, hospitals
R160	0.016 m³/h	0.025 m³/h	2.5 m³/h (DN15)	Breweries, pharmaceuticals, precision industries

4. Register Features

Dry Dial Design – Completely isolated from water via magnetic coupling
Hermetically Sealed – IP68 protection, nitrogen-filled, anti-fog coating
Clear Readability – 8-digit roller counter, remains readable for decades
Rotatable Display – 360° adjustable for optimal viewing angle

5. Connection Options

Thread Standards – BSP (British Standard) or NPT (National Pipe Thread)
Precision Machined – Leak-proof sealing with PTFE tape or pipe compound
Available Sizes – DN15, DN20, DN25, DN32, DN40, DN50, DN65
Custom Lengths – Available upon request for bulk orders

Technical Specifications Table

Parameter	DN15	DN20	DN25	DN32	DN40	DN50	DN65
Connection Thread (BSP)	G ¾"	G 1"	G 1¼"	G 1½"	G 2"	G 2½"	G 3"
Connection Thread (NPT)	½" NPT	¾" NPT	1" NPT	1¼" NPT	1½" NPT	2" NPT	2½" NPT
Q3 (m³/h)	2.5	4.0	6.3	10.0	16.0	25.0	40.0
Q3/Q1 Ratio Options	80 / 100 / 160	80 / 100 / 160	80 / 100 / 160	80 / 100 / 160	80 / 100 / 160	80 / 100 / 160	80 / 100 / 160
Q4 (Overload) = 1.25 × Q3	3.125	5.0	7.875	12.5	20.0	31.25	50.0
Length L (mm)	165 / 190	190 / 195	225 / 260	260 / 300	300	300 / 350	300 / 350
Height (mm)	108	108	115	115	145	145	160
Width (mm)	98	98	104	104	125	125	140
Max Operating Pressure	1.6 MPa (16 bar) – Optional 2.5/4.0 MPa available
Temperature Range – Standard	Cold water: 0.1°C – 50°C / Hot water: 0.1°C – 90°C
Temperature Range – Optional	High-temperature version: up to 150°C for CIP/special applications
Accuracy Class	Class 2 per ISO 4064 (±2% from Q2 to Q4, ±5% from Q1 to Q2)
Register Type	Dry dial, magnetic drive, hermetically sealed, IP68, anti-fog
Body Material Options	304 / 316 / 316L Stainless Steel
Measuring Chamber	Engineering plastic (POM) or optional stainless steel
Protection Class	IP68 (hermetically sealed register – submersible)

Dry Dial Advantage

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Feature	WINMETER Dry Dial	Conventional Wet Dial
Register Isolation	Hermetically sealed, no water contact	Direct gear drive in water
Fogging/Condensation	Anti-fog, nitrogen-filled – Never fogs	Prone to fogging in humidity
Readability	Crystal clear for entire life	May become unreadable over time
Maintenance	Zero – completely sealed	May require drying or replacement
Lifespan in Humid Conditions	10+ years	3-5 years
IP Rating	IP68 (permanent submersion)	Typically IP54-IP65
Installation Location	Outdoor, underground, humid areas	Dry indoor only
Magnetic Drive	Yes – no dynamic seals	Direct drive – potential leak path

Application Scenarios

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Application	Description	Recommended R-Value
Residential Buildings	Apartments, villas, housing complexes – general water billing	R80 – Economical, sufficient accuracy
Commercial Complexes	Offices, shopping malls, hotels, schools	R100 – Better low-flow sensitivity
Industrial Facilities	Factories, manufacturing plants, cooling systems	R100 / R160 – Based on process requirements
Breweries & Distilleries	Water measurement for beer/wine/spirit production	R160 – Critical low-flow accuracy
Pharmaceutical Plants	Purified water, WFI loops, CIP systems	R160 – High precision required
Food Processing	Dairy, juice, edible oil production	R100 / R160 – Based on hygiene standards
Water Treatment	Filter backwash, chemical dosing, RO feed	R100 – General industrial use
HVAC Systems	Chilled water, hot water circulation	R100 – Standard commercial accuracy

Packaging & Shipping

Packaging Type	Description	Suitable For
Single Unit	Individual box with foam inserts	Sample orders, small quantities
Export Carton	5-10 units per carton with dividers	Air freight, LCL shipments
Wooden Pallet	Palletized with shrink wrap	FCL shipments, bulk orders

1. Shipping Methods:

Express: DHL, FedEx, UPS, TNT (3-7 days)

Air Freight: Airport to airport (5-10 days)

Sea Freight: FCL / LCL (15-35 days depending on destination)

2. Shipping Documents:

Commercial Invoice

Packing List

Bill of Lading / Air Waybill

Certificate of Origin

Insurance Certificate (if required)

Frequently Asked Questions

Q1: What is the difference between R80, R100, and R160?
A: The R-value indicates the meter's rangeability – the ratio between maximum and minimum measurable flow. R80 (80:1) is suitable for standard residential use. R100 (100:1) offers enhanced low-flow sensitivity for commercial applications. R160 (160:1) provides the highest precision for industrial, pharmaceutical, and food processing applications where accurate measurement of very low flows is critical.

Q2: How do I choose the right R-value for my application?
A: For general residential water billing, R80 is sufficient and most economical. For commercial buildings, schools, and hospitals, R100 is recommended. For breweries, pharmaceutical plants, and food processing facilities where low flows must be accurately measured, R160 is the best choice. Contact our technical team for specific recommendations.

Q3: Can I get both 304 and 316 stainless steel options?
A: Yes, we offer 304 stainless steel for general applications and 316/316L for enhanced corrosion resistance in aggressive environments, chemical plants, and food/pharmaceutical applications requiring higher purity.

Q4: What thread standards are available?
A: We offer both BSP (British Standard Pipe – parallel or tapered) and NPT (National Pipe Thread – tapered). Please specify your requirement when ordering. Custom thread standards can be accommodated for bulk orders.

Q5: Is the register really fog-proof?
A: Yes, our dry dial registers are hermetically sealed, nitrogen-filled, and feature anti-fog coating. They are IP68 rated and will remain crystal clear for decades, even in humid outdoor or underground installations.

Q6: Do you provide OEM service?
A: Yes, we offer full OEM services including custom logo on body, custom packaging, private labeling, and modified specifications. MOQ for OEM orders is 500 pieces.

Q7: What is your quality control process?
A: Each meter undergoes 100% testing and calibration before shipment. Our quality management system is ISO 9001 certified, and all meters are tested to ISO 4064 accuracy standards.

Q8: What is the warranty period?
A: We offer 12 months warranty against manufacturing defects from date of shipment. Extended warranty options available upon negotiation.

Q9: Can the meter be installed vertically?
A: Yes, our multi-jet meters can be installed in horizontal or vertical positions. For vertical installation, flow direction must be upward. The register can be rotated 360° for easy reading.

Q10: Do you have stock for urgent orders?
A: Yes, we maintain stock for popular sizes (DN15-DN50, BSP thread, R100/R160). Please contact our sales team for current stock availability.

Why Choose WINMETER

Advantage	Description
Complete In-House Production	From material selection to final assembly – full quality control
Multiple Material Options	304, 316, 316L stainless steel available for every model
Customization Capability	OEM/ODM, custom logos, special packaging, modified specifications
Fast Delivery	Stock for popular sizes; efficient production for custom orders
Competitive Factory Pricing	Direct from manufacturer, no middlemen
Technical Expertise	15+ years experience in flow measurement technology
Global Customer Base	Trusted by distributors and projects worldwide
After-Sales Support	Technical consultation, spare parts, calibration services