Zero-Leakage Pneumatic Knife Gate Valve – ISO Certified & Long Lifespan

Product Details
Customization: Available
Media: Fluid,Abrasive Media,Viscous Liquids,Solid-Liquid
Temperature: Low Temperature
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  • Zero-Leakage Pneumatic Knife Gate Valve – ISO Certified & Long Lifespan
  • Zero-Leakage Pneumatic Knife Gate Valve – ISO Certified & Long Lifespan
  • Zero-Leakage Pneumatic Knife Gate Valve – ISO Certified & Long Lifespan
  • Zero-Leakage Pneumatic Knife Gate Valve – ISO Certified & Long Lifespan
  • Zero-Leakage Pneumatic Knife Gate Valve – ISO Certified & Long Lifespan
  • Zero-Leakage Pneumatic Knife Gate Valve – ISO Certified & Long Lifespan
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  • Overview
  • Specification
  • After Sales Service
  • Company Profile
  • FAQ
Overview

Basic Info.

Model NO.
Pneumatic Through-Type Knife Gate Valve DN200
Type
Direct-acting
Material
Carbon Steel
Connection Form
Clamp
Pressure
Ordinary Pressure
Actuator
Pneumatic
Seal Surface
Parallel Gate Valve
Thread Position of Valve Rod
Outside Gate Valve
Usage
Regulation, Emptying, Drain, Temperature Control, Flow Control
Standard
DIN
Application
Industrial Usage, Water Industrial Usage, Household Usage
Transport Package
Plywood Cases
Trademark
HW
Origin
China
HS Code
8481804090
Production Capacity
5000pieces/Month

Product Description

Product Description
The knife gate valve is a linear-motion on/off shut-off valve characterized by its aesthetic appearance, lightweight design, and compact structure. It can be operated manually or equipped with a pneumatic actuator and proximity switch for remote control. 
Specification
Key Configurations
Nominal Diameter: DN80 ~ DN600
Nominal Pressure: 1.0MPa, 1.6MPa, ANSI 150LB
Temperature Ranges: -29℃ ~ 100℃, -29℃ ~ 230℃
Air Supply Pressure: 0.5 ~ 0.7MPa
Connection Type: Wafer (Clamp) Type
Valve Components Material Specifications
Component                 Material Options
Valve Body                         WCB / CF8 / CF8M
           Disc                          410+Cr / 304+Cr / 316+Cr
           Seat                          304+Cr/STL / 304+Cr/STL / 316+Cr/STL
           Stem                         45# Carbon Steel+Cr (all options)
       Packing                         PTFE/Graphite
Zero-Leakage Pneumatic Knife Gate Valve – ISO Certified & Long Lifespan
Zero-Leakage Pneumatic Knife Gate Valve – ISO Certified & Long Lifespan
Zero-Leakage Pneumatic Knife Gate Valve – ISO Certified & Long Lifespan



Technical Specifications
Pneumatic Through-Type Knife Gate Valve Outline Dimensions
DN(mn)
A (mm)
B (mm)
C (mm)
L(max,mm)
H (mm)
200
70
350
130
570
570
250
70
410
140
630
630
300
76
470
160
710
710
350
76
550
200
810
810
400
89
620
210
910
910
450
110
700
220
1000
1000
500
114
730
220
1110
1110
600
134
860
250
1280
1280
Drawings & Dimensions
Detailed CAD drawings and dimensional diagrams are available for download here or upon inquiry. Our engineering team can provide tailored designs to meet specific project requirements.
Zero-Leakage Pneumatic Knife Gate Valve – ISO Certified & Long Lifespan
Applications
 The blade-shaped gate at the bottom provides exceptional cutting force, making it ideal for media containing fibers and suspended particles. Consequently, this product is widely used in
1.Paper manufacturing
2.Wastewater treatment
3. Mining Sugar production
4.Synthetic fiber industries
 Design Features
1.Built-In Packing Chamber
   Utilizes rubber packing for enhanced sealing reliability. A self-locking nut       prevents loosening during prolonged operation.
2.Point-Type Guide Block
   The gate is guided by nylon point-type blocks, ensuring stable movement.      A smooth transition at the port base minimizes residue buildup and                reduces operational failures.
3.Blade-Arc Gate
    The blade-shaped arc design at the gate base delivers superior cutting            performance, particularly for pulp and fiber-rich media. After precision            grinding, the gate undergoes hard chrome plating for exceptional wear            resistance and corrosion resistance.
4. Movable Seal Seat
   Features a spring-loaded O-ring to maintain preload force, ensuring tight       contact between the seat and gate. Automatic compensation for wear           during long-term use extends service life. Options include metal seats,           PTFE, or EPDM seats to suit diverse operating conditions.
5. Multi-Flow Port Configurations
   Sealing ports can be designed as V-shaped, triangular, or pentagonal to        meet varying flow regulation requirements.
Zero-Leakage Pneumatic Knife Gate Valve – ISO Certified & Long Lifespan
After Sales Service
Standard Warranty: 12 months 
Global Support: 24/7 technical assistance and spare parts supply.
Training: On-site or remote operation/maintenance training.
Company Profile
Zero-Leakage Pneumatic Knife Gate Valve – ISO Certified & Long Lifespan
Shandong Huawo Fluid Equipment Co., Ltd
Your Trusted Partner in Precision Fluid Control Solutions.  
Founded in 2008 in Jinan, China's iconic "Spring City," Shan Dong Huawo is a National High-Tech Enterprise dedicated to the integrated R&D, design, production, and sales of industrial fluid automation control systems. For over 15 years, we have pioneered advancements in fluid control technology, driven by our mission to deliver unmatched precision, stability, and reliability for global industries.
Zero-Leakage Pneumatic Knife Gate Valve – ISO Certified & Long Lifespan
Zero-Leakage Pneumatic Knife Gate Valve – ISO Certified & Long Lifespan
Why Choose Us?
Other Products
Industry Leader:
- Leading Chinese manufacturer of automated valves and electric actuators, trusted by clients in 30+ countries.  
- 30+ utility patents and provincial quality certifications ensure cutting-edge innovation.  
Certified Excellence: 
- Triple ISO Certifications: ISO 9001 (Quality), ISO 14001 (Environment), ISO 45001 (Safety).  
- TS Special Equipment License | SIL 3 Certification | ATEX Explosion-Proof Compliance.  
- Honors: National High-Tech Enterprise, AAA Credit Rating, "Specialized & Innovative" SME. 
End-to-End Manufacturing:  
-Full-cycle production from prototyping to mass manufacturing with 100+ advanced facilities, including CNC machining centers, ultrasonic testers, and torque analyzers.  
-Rigorous quality control: Raw material inspection → precision machining → 24-hour pressure testing → final certification.  
Core Products 
Valves  
- Smart Control Valves: Full Port Ball Valves, V-Port Ball Valve, Control Valves , Micro-Flow Valves, Knife Gate Valves,Butterfly Valves, Diaphragm Valves, and Mix-Proof Valves.  
- Heavy-Duty Solutions: Gate Valves | Globe Valves | Rotary Valves | Discharge Valves (Pressure: ≤10MPa, Temperature: -196°C to 650°C).  
Actuators  
-Explosion-Proof Electric Actuators: ATEX/IECEx certified for hazardous environments.  
-Standard Actuators: Torque range 50Nm–2000Nm, IP68 waterproof rating.  
- Customization: Modular designs for OEM/ODM projects. 
FAQ
Q: What types of valves do you manufacture?
A: We specialize in gate valves, globe valves, ball valves, butterfly valves, and check valves, available in various materials including stainless steel, carbon steel, and special alloys.
 
Q: Are your electric actuators compatible with different valve brands?
A: Yes, our actuators are designed to ISO standards and can be adapted to fit most major valve brands through customizable mounting kits.
 
Q: What certifications do your products have?
A: Our products are CE, ISO 9001 certified, and comply with API, ANSI, and other international standards. Specific certifications available upon request.
 
Q: Can you provide explosion-proof actuators for hazardous areas?
A: Absolutely, we offer ATEX and IECEx certified explosion-proof electric actuators suitable for Zone 1 and Zone 2 hazardous environments.
 
Q: What is your production lead time?
A: Standard products: 15-30 days after order confirmation. Custom solutions may require 30-45 days. Rush services available for urgent projects.
 
Q: Do you offer smart valve solutions with IoT capabilities?
A: Yes, we provide intelligent actuators with Modbus, Profibus, or wireless connectivity for remote monitoring and control.
 
Q: What warranty do you provide?
A: We offer 12-month warranty for valves and 12-month warranty for actuators, with extended warranty options available.
 
Q: Can you assist with valve and actuator selection for specific applications?
A: Our engineering team provides free technical consultation to help select the optimal valve-actuator combination for your system requirements.
 
Q: What after-sales services do you offer?
A: We provide installation guidance, maintenance training, spare parts supply, and emergency technical support via email/phone.
 
Q: How do you handle international shipments?
A: We arrange sea/air freight with proper export packaging (wooden crates for valves), handle all customs documentation, and provide door-to-door logistics solutions.
Zero-Leakage Pneumatic Knife Gate Valve – ISO Certified & Long Lifespan
Zero-Leakage Pneumatic Knife Gate Valve – ISO Certified & Long Lifespan
Zero-Leakage Pneumatic Knife Gate Valve – ISO Certified & Long Lifespan

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