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  • DH4500 PVC Flowmeter Inline Rotameter Mechanical Water Flow Meter Sea Water
  • DH4500 PVC Flowmeter Inline Rotameter Mechanical Water Flow Meter Sea Water
  • DH4500 PVC Flowmeter Inline Rotameter Mechanical Water Flow Meter Sea Water
  • DH4500 PVC Flowmeter Inline Rotameter Mechanical Water Flow Meter Sea Water
  • DH4500 PVC Flowmeter Inline Rotameter Mechanical Water Flow Meter Sea Water
  • DH4500 PVC Flowmeter Inline Rotameter Mechanical Water Flow Meter Sea Water
DH4500 PVC Flowmeter Inline Rotameter Mechanical Water Flow Meter Sea Water

DH4500 PVC Flowmeter Inline Rotameter Mechanical Water Flow Meter Sea Water

$9.60-$178.40/ Piece|1 Piece/Pieces(Min. Order)

Customization:

Customized logo（Min.Order: 100 pieces）
Customized packaging（Min.Order: 100 pieces）
Graphic customization（Min.Order: 100 pieces）
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DH4500 PVC Flowmeter Inline Rotameter Mechanical Water Flow Meter Sea Water

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Fluid Flow Measurement: Measures flow rate of air, liquid, water, and gas with ±4% accuracy using a variable area design, enabling real-time monitoring in diverse applications.
  • Dual-Unit Readability: Features a vertical scale marked in gallons per minute (GPM) and liters per minute (LPM), accommodating global measurement standards for seamless integration.

Key features

  • 1. Corrosion-Resistant PVC Construction

    • With a durable PVC body, ensure reliable operation in corrosive environments like seawater. This material outperforms traditional metal-based models in resisting chemical erosion, extending lifespan by up to 20% in harsh conditions.*

  • 2. Dual-Scale (GPM/LPM) Visibility

    • With a vertical scale marked in gallons per minute (GPM) and liters per minute (LPM), effortlessly switch between units for global compatibility. This design reduces conversion errors by 50% compared to single-unit models.*

  • 3. ±4% Accuracy for Precision Control

    • With ±4% measurement accuracy, achieve precise flow regulation in critical applications like industrial pipelines. This outperforms standard models with ±5% accuracy, ensuring 20% higher reliability.*

  • 4. Versatile Medium Compatibility

    • With support for air, liquid, gas, and seawater, seamlessly adapt to diverse industrial scenarios. Unlike single-medium flowmeters, this rotameter handles up to 0.6MPa pressure and DN15-65 pipe sizes, expanding application flexibility.*

  • 5. Marine-Grade Durability Certification

    • With marine-grade PVC certification, meet industry standards for corrosion resistance in harsh marine environments. This ensures compliance with safety regulations for offshore and coastal installations.*

Product details

DH4500 PVC Flowmeter Inline Rotameter Mechanical Water Flow Meter Sea Water

The DH4500 PVC Flowmeter Inline Rotameter is a versatile mechanical flow measurement device designed for precise monitoring of fluids, gases, and liquids. With a transparent acrylic body and robust black plastic connections, it offers clear visibility and durability. Its dual-scale calibration (GPM/LPM) ensures compatibility with global standards, while its variable-area design accommodates diverse media types and pressure ranges.

Technical specifications

FeatureSpecificationApplication Scenario
Accuracy±4%Industrial process control requiring moderate precision
DN SizeDN15, DN65Flow measurement in pipelines of varying diameters
Connection TypeThread, FlangeFlexible installation in standard piping systems
Media CompatibilityAir, Liquid, Fluid, Water, GasMulti-purpose use in HVAC, water treatment, and gas distribution
Pressure Rating0.6 MPaSafe operation under moderate pressure conditions
MaterialPVC (transparent body), Durable PlasticCorrosion resistance for chemical and seawater applications

Customization guide

Adjustable DN size parameters (DN15 to DN65) allow customization to match specific pipe diameters. For specialized needs, inquire about scale unit adjustments (e.g., GPM-only/LPM-only) or material upgrades (e.g., PVDF for harsh chemicals).

Get inspired

With its dual-scale visibility and broad media compatibility, the DH4500 is ideal for optimizing water distribution systems, monitoring gas flow in industrial plants, or ensuring precise fluid control in laboratories.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Accuracy±4%±2%±1%
Pressure Rating0.6 MPa1.0 MPa1.6 MPa
MaterialPVCPVDFStainless Steel
Flow Range0–40 GPM / 0–150 LPM0–60 GPM / 0–225 LPM0–80 GPM / 0–300 LPM

Supplier's note

  1. Technical Breakthroughs:

    • ±1% Accuracy (Pro Model): Enables precise fluid monitoring in pharmaceutical or semiconductor processes.
    • 1.6 MPa Pressure Rating: Supports high-pressure applications like industrial pumps or compressed gas systems.
    • Stainless Steel Construction (Pro): Resists corrosion in seawater or acidic environments, extending lifespan by 40% vs. PVC models.

  2. Optimal Version Selection:

    • Base Model: Ideal for standard HVAC or irrigation systems needing cost-effective monitoring.
    • Advanced Model: Suitable for food processing or chemical plants requiring improved pressure tolerance (+50% vs. base).
    • Pro Model: Best for seawater desalination or oil refineries where extreme durability and precision are critical.

With the Pro model’s stainless steel body, you can ensure long-term reliability in corrosive marine environments. Pair its ±1% accuracy with the 1.6 MPa pressure rating to handle high-demand industrial processes safely.

Frequently asked questions

  • Which DH4500 model is best suited for measuring seawater flow in industrial applications?

  • How does the DH4500 ensure accuracy in high-pressure environments (up to 0.6MPa)?

  • Can the DH4500 measure both liquid and gas flows simultaneously?

  • What maintenance steps are required to clean the rotameter’s transparent body?

  • Why choose PVC over stainless steel for flowmeter construction?

  • Does the DH4500 support custom DN sizes beyond DN15 and DN65?

  • Are thread or flange connections interchangeable on the DH4500?

  • Is the DH4500 certified for use in food-grade or pharmaceutical processes?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Variable Area FlowmetersIndustrial process monitoring, HVAC systems- Accuracy ±4% (ISO 5168)
- DN sizes: DN15/DN65 (ISO 5168)
- Pressure: 0.6MPa (ASME B16.5)
- Medium: Air/Liquid/Gas (ASTM D543)		▲1: Higher accuracy than industry standard (±5%)
Low cost, no power required		Limited to medium flow rates
Pressure loss due to constricted tube
Turbine FlowmetersHigh flow rate applications, clean fluids- Accuracy ±0.5–2% (ISO 5168)
- DN up to 300mm
- Pressure: 40MPa (ASME B16.34)		High precision for clean fluids
Wide flow range compatibility		Requires regular maintenance
Sensitive to contamination or viscosity changes
Electromagnetic FlowmetersConductive liquids, sewage monitoring- Accuracy ±0.3–2% (ISO 5168)
- DN varies (ISO 5168)
- No moving parts (IEC 60044-4)		No wear, bidirectional flow measurement
High reliability for conductive fluids		High cost
Incompatible with non-conductive fluids (e.g., gas)
Ultrasonic FlowmetersClean liquids/gases, high-precision needs- Accuracy ±0.5% (ISO 5168)
- Non-invasive design (ISO 15848)
- DN up to 3000mm		No pressure loss
Works with corrosive fluids
Real-time data logging		Expensive installation
Requires straight pipe runs for accuracy
Coriolis FlowmetersViscous fluids, mass flow measurement- Accuracy ±0.1% (ISO 5168)
- Measures mass flow (ISO 9300)
- DN up to 200mm		Direct mass flow measurement
No calibration needed for viscosity/temperature		Bulky and expensive
High power consumption
Positive Displacement FlowmetersHigh-viscosity fluids, precise dosing- Accuracy ±0.1% (ISO 5168)
- Direct volumetric measurement (ISO 3059)
- DN up to 150mm		Minimal pressure loss
High precision for viscous fluids		Mechanical wear over time
Requires frequent maintenance

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