Hydraulic Knife Gate Valve

When your application demands maximum power and reliable operation under extreme conditions, a hydraulic knife gate valve delivers unmatched force and performance in heavy-duty applications. This powerful hydraulic knife gate valve is engineered for applications requiring exceptional torque output — whether you’re controlling large-diameter pipelines, high-pressure systems, or extreme service conditions where pneumatic and electric actuators cannot provide sufficient force. The high-force hydraulic actuator ensures reliable operation even under maximum differential pressures, while maintaining the superior cutting action of our proven knife gate design. With fail-safe hydraulic control and robust construction, it provides dependable high-power service in demanding industrial environments where maximum force and reliability are essential.

Ready to achieve maximum power control in your heavy-duty applications? Contact us today for a hydraulic solution engineered for your specific high-force requirements. Let TOT Valve power your operations with proven hydraulic strength.

The TOT Valve You Can Depend On – Hydraulic Power When Maximum Force Meets Reliability

When your process requires extreme actuating force, operates under high differential pressures, or demands reliable performance in remote locations, you need the superior power of our hydraulic knife gate valve. With high-pressure hydraulic systems, this knife gate valve provides maximum torque output, consistent operation under load, and exceptional reliability — all while maintaining the reliable cutting action that makes knife gates ideal for challenging media.

The hydraulic operation design provides maximum force capability and dependable performance throughout the valve’s service life, making it the preferred choice for heavy-duty applications and extreme service conditions.

Why Hydraulic Knife Gate Valve Works for You?

hydraulic knife gate valve features

High-force hydraulic actuator delivers maximum torque output up to 50,000 Nm
Consistent operation maintains full force capability regardless of differential pressure
Fail-safe operation with accumulator backup or spring return configurations
Remote operation enables control from distances up to 1000 meters
Variable speed control allows optimized cycle times from 10 seconds to 10 minutes
Corrosion-resistant construction with stainless steel hydraulic components
Knife-edge gate cuts through fibrous materials, settled solids, and viscous media efficiently
High-pressure capability operates reliably with hydraulic pressures up to 210 Bar
Temperature independence maintains consistent force in extreme temperature conditions
Explosion-proof designs available for hazardous area installations
Emergency manual backup provides operation capability during hydraulic system failure

Hydraulic Knife Gate Valve Main Technical Specifications & Performance

Maximum Power Output, High-Pressure Hydraulic Technology, Knife Gate Valve

Specification	Details
Design & Manufacturing Standard	MSS SP-81, AWWA C515, ISO 4413
Size Range	DN50 to DN2000 mm; NPS 2″-80″ (Customized to Your Request)
Pressure Ratings	PN6, PN10, PN16, PN25, ANSI 150-600Psi, 5K/10K, etc.
Working Pressure Classification	DN50–DN300: 25Bar; DN350–DN500: 16Bar; DN600–DN1200: 10Bar; DN1400–DN2000: 6Bar
Operating Speed	10 seconds to 10 minutes full stroke (programmable)
Hydraulic Pressure	70-210 Bar (1000-3000 PSI) operating pressure
Face-to-Face Standard	MSS SP-81, AWWA C515
Flange Connection Standards	GB/T9113–2010, EN1092–2002, ASME B16.5–2013, ASME B16.47–2011, AS2129–2000, AS4087–2004, JIS B2220–2004
Testing Standard	MSS SP-81, API 598, EN 12266-1, ISO 4413
Body Materials	WCB, CF8, CF3, CF8M, CF3M, 4A, 5A, 904L, Super Duplex
Temperature Range	-40°C to +150°C (standard), up to +200°C with high-temp fluids
Hydraulic Fluids	Mineral Oil, Synthetic Fluids, Fire-Resistant Fluids (HFC, HFD)
Control Standards	ISO 4413, NFPA, IEC 61508 (SIL)
Applications	Mining, Steel Mills, Power Generation, Large Pipelines, Offshore, Heavy Industry
Control Modes	On/Off, Proportional, Emergency Shut-off, Load Sensing

hydraulic knife gate valve components

Hydraulic Knife Gate Valve Main Components and Materials

Part Name	Material Options
	WCB	CF8	CF8M
Valve Body	WCB	CF8	CF8M
Gate	304SS	316SS	316L/Duplex
Seat	EPDM/Metal	EPDM/Metal	EPDM/Metal
Hydraulic Cylinder	Steel	316SS	316SS
Piston	Steel	316SS	316SS
Cylinder Rod	Chrome Plated	316SS	316L
Rod Seals	NBR/PU	FKM	FKM/PTFE
Cylinder Seals	NBR	FKM	FKM
Stem	2Cr13	316SS	316L
Stem Coupling	304SS	316SS	316L
Hydraulic Manifold	Steel	316SS	316SS
Control Valve	Steel	316SS	316SS
Accumulator	Steel	316SS	316SS
Pressure Sensors	316SS	316SS	316SS
Hydraulic Fittings	Steel	316SS	316SS
Manual Override	Steel	304SS	316SS

Advanced Hydraulic Technology

High-Pressure Systems: Operating pressures up to 210 Bar provide maximum force capability

Load Sensing Control: Automatically adjusts hydraulic pressure to match valve load requirements

Accumulator Systems: Energy storage provides rapid response and emergency operation capability

Proportional Control: Variable flow control enables precise speed and position control

Pressure Compensation: Maintains consistent operation regardless of supply pressure variations

Fire-Resistant Fluids: Compatible with various hydraulic fluids including fire-resistant types

TOT Valve Tailored for Your High-Force Applications – Maximum Power Solutions

You can customize this hydraulic knife gate valve for your exact power requirements:

Actuator Configurations:

Single Acting: Spring return with hydraulic opening for fail-safe close operation
Double Acting: Maximum force in both directions for high differential pressure
Telescopic: Compact design for space-limited installations
Rotary Vane: Alternative design for specific mounting requirements

Hydraulic Systems:

Centralized HPU: Multiple valves operated from single hydraulic power unit
Local Power Pack: Dedicated hydraulic system for individual valve control
Accumulator Systems: Energy storage for rapid operation and emergency backup
Manual Pump Backup: Hand pump operation for emergency situations

Control Options:

Manual Control: Hand-operated directional control valves
Solenoid Control: Electric pilot valves for remote operation
Proportional Control: Electronic control for precise positioning
Servo Control: High-precision feedback control systems

hydraulic knife gate valve performance

Hydraulic Force & Performance Data

Valve Size	Cylinder Bore	Operating Force	Cycle Time	Hydraulic Flow	Power Required
DN50-100	63-80mm	20-50 kN	10-30 sec	10-20 L/min	5-10 kW
DN125-200	100-125mm	50-120 kN	15-45 sec	20-40 L/min	10-20 kW
DN250-400	160-200mm	120-300 kN	30-90 sec	40-80 L/min	20-40 kW
DN450-600	250-320mm	300-600 kN	60-180 sec	80-150 L/min	40-75 kW
DN700-1000	400-500mm	600-1200 kN	120-360 sec	150-300 L/min	75-150 kW
DN1200-2000	630-800mm	1200-3000 kN	180-600 sec	300-600 L/min	150-300 kW

Hydraulic System Design & Components

Power Unit Selection: Customized HPU design based on valve requirements and duty cycle

Filtration Systems: High-efficiency filtration maintains hydraulic fluid cleanliness

Temperature Control: Cooling systems prevent overheating during continuous operation

Pressure Regulation: Precision pressure control for consistent valve operation

Safety Systems: Relief valves, burst discs, and emergency shutdown capabilities

Monitoring Systems: Pressure, temperature, and flow monitoring with alarm capability

Performance Advantages & Testing

Maximum Force Output: Unmatched actuating force for large valves and high differential pressures

Consistent Performance: Hydraulic power maintains force regardless of valve position

Remote Operation: Safe operation from control rooms in hazardous environments

Emergency Capability: Rapid closure for emergency isolation applications

Heavy-Duty Service: Designed for continuous operation in demanding applications

Extreme Environment: Reliable operation in temperatures from -40°C to +150°C

Quality Assurance & Certification

Every TOT hydraulic knife gate valve undergoes rigorous testing:

Hydrostatic pressure testing at 1.5x working pressure
Hydraulic performance testing including force, speed, and positioning verification
Endurance testing for cylinder and seal durability
System integration testing with complete hydraulic power unit
Environmental testing for extreme temperature and pressure conditions
Safety system testing including emergency shutdown and fail-safe operation

Installation & System Integration

Complete System Supply: Valve, actuator, and hydraulic power unit as integrated package

Flexible Installation: Multiple mounting orientations and remote hydraulic connections

System Design Support: Complete hydraulic system engineering and optimization

Commissioning Services: Expert startup, testing, and operator training

Documentation Package: Comprehensive system manuals, P&IDs, and maintenance procedures

Global Support: Worldwide service network for system maintenance and support

Safety & Environmental Features

Fail-Safe Design: Multiple fail-safe options including spring return and accumulator backup

Environmental Protection: Biodegradable hydraulic fluids available for sensitive environments

Leak Detection: Monitoring systems detect and alarm hydraulic fluid leaks

Fire Safety: Fire-resistant hydraulic fluids for high-risk applications

Pressure Safety: Comprehensive safety systems prevent overpressure conditions

Emergency Systems: Manual backup operation and rapid emergency shutdown capability

Cost Benefits & Lifecycle Value

Maximum Power Efficiency: Highest force-to-cost ratio for large valve applications

Extended Service Life: Robust hydraulic components designed for 20+ year service

Energy Efficiency: On-demand operation reduces energy consumption compared to continuous systems

Reduced Infrastructure: No electrical power required at valve location

Proven Technology: Mature hydraulic technology with established maintenance practices

Total Cost Optimization: Lowest lifecycle cost for high-force applications

Contact TOT Valve today for technical consultation and competitive quotation on your hydraulic knife gate valve requirements for maximum power applications.