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  • Factory Directly Sells DN20 Operated Pneumatic Diaphragm Single Air Control Steam Global Valve with Positioner
  • Factory Directly Sells DN20 Operated Pneumatic Diaphragm Single Air Control Steam Global Valve with Positioner
  • Factory Directly Sells DN20 Operated Pneumatic Diaphragm Single Air Control Steam Global Valve with Positioner
  • Factory Directly Sells DN20 Operated Pneumatic Diaphragm Single Air Control Steam Global Valve with Positioner
  • Factory Directly Sells DN20 Operated Pneumatic Diaphragm Single Air Control Steam Global Valve with Positioner
  • Factory Directly Sells DN20 Operated Pneumatic Diaphragm Single Air Control Steam Global Valve with Positioner
Factory Directly Sells DN20 Operated Pneumatic Diaphragm Single Air Control Steam Global Valve with Positioner

Factory Directly Sells DN20 Operated Pneumatic Diaphragm Single Air Control Steam Global Valve with Positioner

  • 1 - 98 Pieces
    $419
  • 99 - 499 Pieces
    $410
  • >= 500 Pieces
    $399

Customization:

Customized logo（Min.Order: 1000 pieces）
Customized packaging（Min.Order: 1000 pieces）
Graphic customization（Min.Order: 1000 pieces）
View product details

Factory Directly Sells DN20 Operated Pneumatic Diaphragm Single Air Control Steam Global Valve with Positioner

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Precise Fluid Control: Designed to regulate the flow of air and steam with a diaphragm actuator for tight sealing and durability.
  • Automated Operation: Equipped with a pneumatic actuator and positioner for remote, signal-based control, ensuring accurate valve positioning in dynamic systems.

Key features

  • 1. Corrosion-Resistant Stainless Steel Construction

    • With a corrosion-resistant stainless steel (CF8/AISI 304) body, ensure durability in harsh environments with steam or high-pressure fluids, outperforming cast iron alternatives*.

  • 2. Precision Pneumatic Control with Integrated Positioner

    • With the integrated pneumatic actuator and positioner, achieve precise flow control via automated input signals (e.g., 4-20mA), reducing manual adjustments compared to traditional valves.

  • 3. High-Pressure Performance Up to 6.4MPa

    • With a pressure rating of 6.4MPa, handle extreme high-pressure applications 30% more effectively than standard pneumatic valves*, ensuring reliability in demanding industrial settings.

  • 4. Versatile Media Compatibility for Industrial Use

    • Designed for steam and air media

Product details

Factory Directly Sells DN20 Operated Pneumatic Diaphragm Single Air Control Steam Global Valve with Positioner

The DN20 Operated Pneumatic Diaphragm Single Air Control Steam Globe Valve with Positioner is a precision-engineered solution for industrial fluid control. Constructed from corrosion-resistant stainless steel (CF8/AISI 304), it supports media like air and steam under pressures up to 6.4MPa. Equipped with a pneumatic actuator and integrated positioner, it ensures accurate flow regulation in high-demand applications.

Technical specifications

FeatureSpecificationBenefit
MaterialStainless Steel (CF8/AISI 304)Corrosion resistance and durability
Valve TypeGlobe ValveHigh-pressure and temperature tolerance
Actuator TypePneumatic DiaphragmRemote, automated operation
Positioner4-20mA Signal CompatiblePrecise valve positioning control
Pressure RatingUp to 6.4MPa (PN64)Versatile for low to high-pressure needs
Media CompatibilityAir, SteamSafe for diverse industrial fluids

Customization guide

Adjustable DN (Pipe Diameter) and PN (Pressure Class) ratings to meet specific flow and pressure requirements.

Get inspired

With its precise pneumatic control and robust construction, this valve is ideal for applications requiring reliable steam regulation, such as power plants, chemical processing, and HVAC systems.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Max Pressure4MPa (PN40)6MPa (PN60)6.4MPa (PN64)
Flow Precision±5%±3%±1.5%
Material GradeAISI 304AISI 316AISI 316L (Low-C)
Positioner Accuracy2%1.5%0.5%

Supplier's note

  1. Three Technical Breakthroughs:

    • Material Innovation: The Pro Model’s AISI 316L stainless steel ensures low-carbon corrosion resistance, ideal for aggressive media.
    • Precision Control: The Pro’s 0.5% positioner accuracy (vs. industry-standard 2%) enables ultra-precise steam flow adjustments.
    • Pressure Tolerance: Withstanding 6.4MPa (64 bar), the Pro Model exceeds standard industrial benchmarks for high-pressure systems.

  2. Optimal Version Selection:

    • Base Model: Suitable for low-pressure (≤4MPa) applications like basic HVAC systems.
    • Advanced Model: Ideal for medium-pressure (≤6MPa) chemical processing or food-grade steam systems.
    • Pro Model: Designed for extreme conditions (e.g., power plants) where high pressure (6.4MPa) and precision are critical. For instance, its triple-certified chemical resistance (ISO 1515) ensures safe handling of corrosive steam, paired with the diaphragm actuator’s leak-free design to minimize downtime.

Frequently asked questions

  • Which pneumatic diaphragm valve model suits high-pressure steam applications?

  • How do I maintain a pneumatic control valve with a diaphragm actuator?

  • What’s the difference between stainless steel and carbon steel valves for steam?

  • Can I customize the pressure rating of a pneumatic globe valve?

  • Is this pneumatic control valve FDA-approved for food-grade steam?

  • How does the positioner improve precision in pneumatic valves?

  • What media types are compatible with this diaphragm control valve?

  • Which valve type is best for precise flow control in low-pressure systems?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Pneumatic Control ValvesIndustrial automation, steam systemsStainless Steel 304 (CF8) body (ASTM A213) ▲
Pressure Rating: 6.4 MPa (PN16) (ISO 7005) ▲▲
Pneumatic Actuator (ISO 5211)		Fast response, explosion-proof, no electrical power requiredRequires compressed air supply, limited precision without positioners
Electric Control ValvesClean environments, precise flow controlElectric Actuator (IEC 60073)
Positioning Accuracy: ±1% (ISO 5211)
Pressure Rating: 4 MPa (PN63)		High precision, no air supply needed, silent operationHigher cost, potential electrical hazards in explosive areas
Manual Globe ValvesLow-pressure manual operationBrass Body (ASTM B368)
Pressure Rating: 2.5 MPa (PN25)		Simple design, low cost, easy maintenanceNo automation, limited pressure handling, slow operation
Hydraulic ValvesHeavy machinery, high-pressure systemsCarbon Steel Body (ASTM A105)
Pressure Rating: 20 MPa (PN200) ▲▲		Robust, high-pressure tolerance, durableHeavy weight, requires hydraulic fluid, complex maintenance
Diaphragm ValvesCorrosive fluids, pharmaceuticalsPTFE Diaphragm (ASTM D4703)
Pressure Rating: 1.6 MPa (PN16)
Zero Leakage (ISO 15848)		Chemical resistance, no leakage, easy cleaningLower pressure tolerance, limited flow rates, diaphragm wear over time
Safety ValvesOverpressure protection in pipelinesSpring-loaded (ASME Sec VIII)
Pressure Relief: 10–100 bar (ISO 4126) ▲		Automatic pressure relief, critical safety function, reliable operationRequires regular testing, bulky design, potential for unintended activation

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