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Pneumatic quick cut-off regulating butterfly valve

    Pneumatic quick cut-off regulating butterfly valve

    The Pneumatic Quick Cut-Off Regulating Butterfly Valve is a high-performance flow control device designed for industrial pipelines requiring fast, precise, and reliable shut-off and regulation. Equipped with a pneumatic actuator, this valve enables rapid opening and closing while maintaining accurate flow control, making it ideal for chemical plants, power stations, water treatment systems, and HVAC applications. Its robust construction, corrosion-resistant materials, and low-maintenance design ensure long-term stability and energy-efficient operation. The valve is widely used in systems handling gases, liquids, or steam where fast response and precise control are critical for safety and process efficiency.
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Main dimensions and weight

DNDD1BLH1Hn-φd气源接口M1Air interface信号接口M2Signal interface全开时允许最大 操作压差(MPa)  Fully open when maximum allowable operating pressure differental (MPa)配气动执行器Equipped pneumatic actuator重量  (kg)  Weight
缸径 Bore行程  Stroke力矩N ·m Torque
100205170701104208004-φ18M1
M10×1
M2
M10×1
15.3160250100082
150260225701404708008-φ184.56160250100097
200315280801805008008-φ181.91602501000110
25037533580200580100012-φ181.572002501600138
30044039590230630100012-φ220.912002501600180
35048544590255650100012-φ22
0.572002501600240








M1




400540495100280680115016-φ22M12×1.250.62004002500325
450590550100400750115016-φ22M20.422004002500350
500640600100430780115016-φ24M10×10.32004002500390
600750705150480800115020-φ24M10.1782004002500500
700860810150600900125024-φ27M14×1.50.1262504004000690
M2
800975920200650950125024-φ30M10×10.122504004000840
900107510202007001020140024-φ30M1
M16×1.5
M2
M10×1
0.0923004006000990
1000117511202007551070140028-φ300.07130040060001100
1200140013404008551170140032-φ340.045250×240080001320
1400162015604009551270140036-φ340.037250×240080001420
16001820176040011551470140040-φ340.026300×2400100001620
18002045197040012551570140044-φ380.02300×2400100001770
20002265218040013551670140048-φ430.015300×2400100002050


Pneumatic Quick Cut-Off Regulating Butterfly Valve: Complete Guide

Introduction

The Pneumatic Quick Cut-Off Regulating Butterfly Valve is a high-precision industrial valve designed for fast and reliable flow control in pipelines handling gases, liquids, or steam. Equipped with a pneumatic actuator, this valve combines rapid opening/closing capabilities with accurate regulation of flow rates, making it ideal for chemical plants, power stations, water treatment systems, HVAC applications, and process industries.

This guide provides detailed information on transportation precautions, maintenance schedules, operational considerations, and user feedback, helping engineers and plant managers maximize valve performance, reliability, and service life.


Product Overview

The pneumatic quick cut-off regulating butterfly valve consists of:

  • Valve body: Typically made of stainless steel, carbon steel, or corrosion-resistant alloys.

  • Disc: Rotating component for flow regulation and shut-off.

  • Pneumatic actuator: Provides fast, automated movement for precise control.

  • Sealing system: Ensures tight shut-off and minimal leakage.

  • Control linkage: Connects the actuator to the disc, allowing quick response.

Key Features

  • Fast-acting pneumatic operation for rapid response.

  • Precise flow regulation with minimal pressure drop.

  • Durable, corrosion-resistant materials for harsh industrial environments.

  • Low maintenance design for long-term operation.

  • Suitable for gases, liquids, and steam in various industrial applications.


Transportation Precautions

Proper transportation is critical to prevent damage during shipping and handling.

Handling Guidelines

  1. Packaging Inspection

    • Check valve packaging for damage before transport.

    • Ensure protective caps are installed on ports to prevent debris ingress.

  2. Loading & Unloading

    • Use appropriate lifting equipment (cranes or forklifts) to handle valves safely.

    • Avoid dropping or impacting the valve body or actuator.

  3. Storage Conditions

    • Store valves in a dry, covered environment to prevent rust and corrosion.

    • Maintain ambient temperature according to manufacturer recommendations.

    • Avoid stacking heavy objects on top of the valve packaging.

  4. Transportation Orientation

    • Keep the valve upright during transportation to protect the disc and actuator.

    • Secure the valve properly to prevent movement during transit.

Transportation Checklist

ItemRequirement
Packaging integrityNo visible damage or punctures
Protective capsInstalled on all ports
Storage environmentDry, clean, and covered
Orientation during transportUpright, secured to prevent movement
Handling equipmentSuitable cranes, forklifts, or slings

Pneumatic quick cut-off regulating butterfly valve

Maintenance Schedule

Regular maintenance ensures consistent performance and prolongs the service life of the valve.

Routine Inspection

ComponentFrequencyInspection Action
Valve body and discMonthlyCheck for corrosion, cracks, or deformation
Seals and gasketsQuarterlyInspect for wear, leaks, or brittleness
Pneumatic actuatorQuarterlyTest for smooth operation and leakage
Fasteners (bolts & nuts)BiannuallyCheck tightness and replace damaged hardware
Lubrication pointsEvery 6 monthsApply non-corrosive grease as required
Functional testAnnuallyOpen/close valve under system pressure

Recommended Maintenance Actions

  • Cleaning: Remove dust and debris from valve components.

  • Lubrication: Apply suitable grease to moving parts to prevent wear.

  • Seal Replacement: Replace worn gaskets to maintain leak-tight performance.

  • Actuator Check: Inspect pneumatic lines and cylinder performance.

  • Performance Testing: Periodically conduct operational tests to ensure rapid response.


Operational Considerations

Proper operation is essential for safety, efficiency, and longevity.

Start-Up Guidelines

  1. Pre-Operation Check

    • Confirm all pneumatic connections are secure.

    • Ensure disc movement is unobstructed.

    • Verify actuator is calibrated for correct travel and speed.

  2. Valve Operation

    • Gradually apply air pressure to the actuator.

    • Avoid excessive cycling beyond recommended limits.

    • Monitor system pressure and flow rate during operation.

  3. Emergency Operation

    • Actuator is capable of rapid shut-off in emergencies.

    • Ensure manual override is accessible in case of actuator failure.

Safety Precautions

  • Do not exceed the rated pressure and temperature of the valve.

  • Avoid operating with corrosive or abrasive media beyond design limits.

  • Ensure personnel are trained on actuator operation and emergency procedures.

  • Perform regular inspection of control lines and system connections.


User Feedback and Performance Insights

Feedback from industrial users highlights the following advantages of the pneumatic quick cut-off regulating butterfly valve:

Key Feedback Highlights

Feedback AspectUser Comment / Benefit
Rapid Response“The valve closes within seconds, improving safety in our chemical lines.”
Flow Regulation Accuracy“We achieved precise airflow control, even under varying pressures.”
Durability“After 2 years of continuous operation, the valve still functions smoothly.”
Low Maintenance“Quarterly inspection is sufficient, reducing downtime.”
Easy Integration“The valve fits easily into existing HVAC and process piping systems.”

Common Suggestions

  • Ensure regular cleaning of pneumatic lines to prevent actuator malfunction.

  • Monitor pressure settings to maintain optimal control performance.

  • Consider actuator upgrade options for larger pipelines or higher-speed operation.


Advantages of Pneumatic Quick Cut-Off Regulating Butterfly Valve

  1. Fast-Acting Shut-Off: Rapid response improves safety in critical pipelines.

  2. Precise Flow Control: Multi-position actuator ensures accurate regulation.

  3. Durable Construction: Resistant to corrosion, wear, and high pressure.

  4. Low Maintenance: Simplified design reduces downtime and maintenance costs.

  5. Versatile Applications: Suitable for gases, liquids, and steam in HVAC, water treatment, chemical, and power systems.

  6. Easy Integration: Compatible with manual, electric, or automated control systems.


Conclusion

The Pneumatic Quick Cut-Off Regulating Butterfly Valve is an indispensable component for modern industrial pipelines that require rapid response, precise regulation, and long-term reliability. By adhering to proper transportation precautions, maintenance schedules, and operational guidelines, users can ensure maximum performance and extended service life.

User feedback confirms that this valve delivers fast shut-off, accurate flow control, and durability, making it a preferred choice for industrial applications worldwide. Proper integration into system design, coupled with regular inspection and maintenance, guarantees energy efficiency, safety, and operational stability.

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