Main dimensions and weight
| DN | D | D1 | B | L | H1 | H | n-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 | |||||||||||
| 100 | 205 | 170 | 70 | 110 | 420 | 800 | 4-φ18 | M1 M10×1 M2 M10×1 | 15.3 | 160 | 250 | 1000 | 82 |
| 150 | 260 | 225 | 70 | 140 | 470 | 800 | 8-φ18 | 4.56 | 160 | 250 | 1000 | 97 | |
| 200 | 315 | 280 | 80 | 180 | 500 | 800 | 8-φ18 | 1.9 | 160 | 250 | 1000 | 110 | |
| 250 | 375 | 335 | 80 | 200 | 580 | 1000 | 12-φ18 | 1.57 | 200 | 250 | 1600 | 138 | |
| 300 | 440 | 395 | 90 | 230 | 630 | 1000 | 12-φ22 | 0.91 | 200 | 250 | 1600 | 180 | |
| 350 | 485 | 445 | 90 | 255 | 650 | 1000 | 12-φ22 | 0.57 | 200 | 250 | 1600 | 240 | |
| M1 | |||||||||||||
| 400 | 540 | 495 | 100 | 280 | 680 | 1150 | 16-φ22 | M12×1.25 | 0.6 | 200 | 400 | 2500 | 325 |
| 450 | 590 | 550 | 100 | 400 | 750 | 1150 | 16-φ22 | M2 | 0.42 | 200 | 400 | 2500 | 350 |
| 500 | 640 | 600 | 100 | 430 | 780 | 1150 | 16-φ24 | M10×1 | 0.3 | 200 | 400 | 2500 | 390 |
| 600 | 750 | 705 | 150 | 480 | 800 | 1150 | 20-φ24 | M1 | 0.178 | 200 | 400 | 2500 | 500 |
| 700 | 860 | 810 | 150 | 600 | 900 | 1250 | 24-φ27 | M14×1.5 | 0.126 | 250 | 400 | 4000 | 690 |
| M2 | |||||||||||||
| 800 | 975 | 920 | 200 | 650 | 950 | 1250 | 24-φ30 | M10×1 | 0.12 | 250 | 400 | 4000 | 840 |
| 900 | 1075 | 1020 | 200 | 700 | 1020 | 1400 | 24-φ30 | M1 M16×1.5 M2 M10×1 | 0.092 | 300 | 400 | 6000 | 990 |
| 1000 | 1175 | 1120 | 200 | 755 | 1070 | 1400 | 28-φ30 | 0.071 | 300 | 400 | 6000 | 1100 | |
| 1200 | 1400 | 1340 | 400 | 855 | 1170 | 1400 | 32-φ34 | 0.045 | 250×2 | 400 | 8000 | 1320 | |
| 1400 | 1620 | 1560 | 400 | 955 | 1270 | 1400 | 36-φ34 | 0.037 | 250×2 | 400 | 8000 | 1420 | |
| 1600 | 1820 | 1760 | 400 | 1155 | 1470 | 1400 | 40-φ34 | 0.026 | 300×2 | 400 | 10000 | 1620 | |
| 1800 | 2045 | 1970 | 400 | 1255 | 1570 | 1400 | 44-φ38 | 0.02 | 300×2 | 400 | 10000 | 1770 | |
| 2000 | 2265 | 2180 | 400 | 1355 | 1670 | 1400 | 48-φ43 | 0.015 | 300×2 | 400 | 10000 | 2050 | |
Pneumatic Quick Cut-Off Regulating Butterfly Valve: Complete Guide
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.
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.
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.
Proper transportation is critical to prevent damage during shipping and handling.
Packaging Inspection
Check valve packaging for damage before transport.
Ensure protective caps are installed on ports to prevent debris ingress.
Loading & Unloading
Use appropriate lifting equipment (cranes or forklifts) to handle valves safely.
Avoid dropping or impacting the valve body or actuator.
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.
Transportation Orientation
Keep the valve upright during transportation to protect the disc and actuator.
Secure the valve properly to prevent movement during transit.
| Item | Requirement |
|---|---|
| Packaging integrity | No visible damage or punctures |
| Protective caps | Installed on all ports |
| Storage environment | Dry, clean, and covered |
| Orientation during transport | Upright, secured to prevent movement |
| Handling equipment | Suitable cranes, forklifts, or slings |

Regular maintenance ensures consistent performance and prolongs the service life of the valve.
| Component | Frequency | Inspection Action |
|---|---|---|
| Valve body and disc | Monthly | Check for corrosion, cracks, or deformation |
| Seals and gaskets | Quarterly | Inspect for wear, leaks, or brittleness |
| Pneumatic actuator | Quarterly | Test for smooth operation and leakage |
| Fasteners (bolts & nuts) | Biannually | Check tightness and replace damaged hardware |
| Lubrication points | Every 6 months | Apply non-corrosive grease as required |
| Functional test | Annually | Open/close valve under system pressure |
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.
Proper operation is essential for safety, efficiency, and longevity.
Pre-Operation Check
Confirm all pneumatic connections are secure.
Ensure disc movement is unobstructed.
Verify actuator is calibrated for correct travel and speed.
Valve Operation
Gradually apply air pressure to the actuator.
Avoid excessive cycling beyond recommended limits.
Monitor system pressure and flow rate during operation.
Emergency Operation
Actuator is capable of rapid shut-off in emergencies.
Ensure manual override is accessible in case of actuator failure.
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.
Feedback from industrial users highlights the following advantages of the pneumatic quick cut-off regulating butterfly valve:
| Feedback Aspect | User 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.” |
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.
Fast-Acting Shut-Off: Rapid response improves safety in critical pipelines.
Precise Flow Control: Multi-position actuator ensures accurate regulation.
Durable Construction: Resistant to corrosion, wear, and high pressure.
Low Maintenance: Simplified design reduces downtime and maintenance costs.
Versatile Applications: Suitable for gases, liquids, and steam in HVAC, water treatment, chemical, and power systems.
Easy Integration: Compatible with manual, electric, or automated control systems.
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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