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    • Home
    • Overview
    • Valve Automation
      • 1-Triac
      • 1-Taylor
      • 2-Air Torque
      • 2-Flo-Tite
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      • 4-Fisher
      • 5-Bernard
      • 6-Limitorque
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    • Flow Measurement
      • 22-Schneider Coriolis
      • 23-Schneider Vortex
      • 24-Schneider Mag
      • 30-Kurz Thermal Mass
    • Instrumentation
      • 25-Schneider Pressure
      • 26-Schneider Pressure
      • 27-Schneider Temperature
    • Controls
      • 28-Schneider SCADAPack
      • 29-Beijer HMI
    • VZ Air(TM)
      • 31-VZ Air DC/Solar HD

  • Home
  • Overview
  • Valve Automation
    • 1-Triac
    • 1-Taylor
    • 2-Air Torque
    • 2-Flo-Tite
    • 3-Schubert and Salzer
    • 4-Fisher
    • 5-Bernard
    • 6-Limitorque
    • 7-Mascot
    • 8-Rotork
    • 9-VZ ESD(TM)
    • 10-VZ Torque(TM)
    • 11-VZ Torque(TM)
    • 11-Clarke
    • 12-Air Con
    • 13-Triac
    • 14-Valvcon
    • 14-VZ Lifter
    • 14-Master Flo
    • 15-Valvcon
    • 15-Master Flo
    • 15-VZ Lifter
    • 16-Piper
    • 16-VZ Torque
    • 17-Pratt
    • 17-Pratt Valve
    • 18-Triac
    • 19-Triac
    • 20-Triac
    • 21-Bernard
  • Flow Measurement
    • 22-Schneider Coriolis
    • 23-Schneider Vortex
    • 24-Schneider Mag
    • 30-Kurz Thermal Mass
  • Instrumentation
    • 25-Schneider Pressure
    • 26-Schneider Pressure
    • 27-Schneider Temperature
  • Controls
    • 28-Schneider SCADAPack
    • 29-Beijer HMI
  • VZ Air(TM)
    • 31-VZ Air DC/Solar HD

Clarke

Dilating Disc Valve

(Demo #11)

Buy on ShopVZControls.com

Product Description

The Clarke Dilating Disc Valve is a specialized type of valve known for its precise control and reliable performance in various industrial applications. Here are its key features:

1. Unique Dilating Disc Mechanism

  • Instead of a traditional rotating or sliding disc, it features a dilating (expanding and contracting) disc that adjusts to regulate flow.
  • This design provides a smooth, controlled flow adjustment with minimal turbulence.

2. Precise Flow Control

  • Offers high precision in throttling and modulating flow, making it ideal for applications requiring fine-tuned adjustments.
  • Maintains a linear flow characteristic, allowing for predictable operation.

3. Minimal Pressure Drop

  • The dilating mechanism ensures a larger flow path when open, reducing pressure loss across the valve.
  • Improves system efficiency by minimizing energy consumption.

4. Excellent Sealing and Tight Shut-Off

  • Provides a bubble-tight seal, reducing the risk of leaks.
  • Often used in applications requiring a zero-leakage shut-off.

5. Low Wear and Longer Lifespan

  • The absence of traditional friction-based sealing elements reduces wear.
  • Extends the valve’s operational life, leading to lower maintenance costs.

6. Corrosion and Erosion Resistance

  • Often constructed from high-grade stainless steel or corrosion-resistant alloys.
  • Suitable for handling abrasive, corrosive, or high-pressure media.

7. Wide Range of Applications

  • Used in industries such as oil & gas, chemical processing, power generation, and water treatment.
  • Suitable for handling liquids, gases, and steam.

8. Compact and Robust Design

  • The design allows for installation in tight spaces while maintaining durability.
  • Reduces weight and footprint compared to some other valve types.

Key Specifications

1. Sizes and Pressure Classes

  • Sizes: Available from ¼ inch up to 12 inches. Larger sizes can be provided      upon request. ​ 
  • Pressure Classes: Supports ASME pressure classes ranging from 150 lbs to 1500 lbs. ​ 

2. Temperature Range

  • Operational from -46°C (-50.8°F) up to 260°C (500°F). Options for cryogenic and higher temperature applications are available upon request. ​ 

3. Compliance and Certifications

  • Designed in accordance with multiple industry standards, including:​ 
    • ASME B16.34​ 
    • IEC 60534-3-3​ 
    • IEC 60534-3-2​ 
    • IEC 60534-3-1​ 
  • Conforms to ANSI/FCI 70-2 leakage specifications. ​ 

4. Materials of Construction

  • Standard materials include:​ 
    • Carbon Steel​ 
    • Stainless Steel

Product downloads

Clarke-Valve-Brochure-2022 (pdf)Download
Clarke Valve Silver Bullets (pdf)Download

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