Pneumatic Round Port Lug Bi-Directional Knife Gate Valve

Automated, High-Cycle Isolation for Critical Flow Lines

This advanced knife gate valve is the ultimate solution for automated, high-frequency isolation where absolute process reliability is essential. Equipped with a robust Pneumatic Cylinder Actuator, it delivers the necessary speed and force for instant on/off control within automated systems.

The valve’s design ensures maximum operational security: its Bi-Directional sealing capability guarantees tight shut-off against pressure from either direction, while the Lug-style body simplifies in-line maintenance by allowing one side of the pipeline to remain fastened during service. This valve is engineered for efficiency and uncompromising safety.

Key Features & Automation Advantages

Feature Category	Technical Detail	Core Operational Benefit
Automation	Pneumatic Cylinder Actuator	Provides fast, high-speed cycling and high thrust, making it ideal for frequent on/off duties and emergency shut-off sequences.
Sealing Security	Bi-Directional Sealing	Guarantees zero-leakage isolation against the full-rated pressure, regardless of flow direction, crucial for complex piping and pump isolation.
Maintenance Ease	Lugged Connection Body	Features threaded bolt holes, allowing for the removal of the valve from the pipeline by disassembling the flanges from one side only. Significantly reduces downtime.
Flow Efficiency	Round Port Geometry	Ensures a full-bore, unobstructed flow path when open, minimizing friction and maximizing throughput in both liquid and slurry service.
System Integration	ISO Mounting for Accessories	The actuator yoke and cylinder are designed to accept standardized accessories like limit switches and solenoid valves for seamless DCS/PCS integration.
Space & Reliability	Bonnetless Design (Typically)	Prevents solids, fibers, and particles from accumulating above the gate, ensuring the valve cycles reliably without jamming, particularly in slurry service.

Technical Specifications (Standard Pneumatic Model)

Parameter	Specification Range
Actuation Method	Pneumatic Cylinder (Standard Double-Acting)
Sealing Direction	Bi-Directional
Connection Type	Lug Type (Fully Tapped Holes)
Port / Flow	Round Port / Full Bore
Stem Design	Rising Stem (Standard) or Non-Rising Stem (Optional)
Pressure Rating	PN10, PN16, or ANSI Class 150
Body Material Options	Ductile Iron (Standard), Carbon Steel, Stainless Steel (Varies by corrosion)
Gate Material	Stainless Steel (SS304 / SS316)
Seating Material	Resilient (e.g., EPDM) or Metal Seated (for high temp)

Target Industry Applications

This valve is indispensable in automated, high-reliability processes across various industries:

Wastewater Treatment: Automated control of sludge dewatering lines, filter press feed, and primary sewage isolation.
Chemical Processing: Automated batch reactor control, critical chemical isolation, and rapid shut-off processes.
Food & Beverage: Automated flow switching in process lines requiring reliable, contamination-free isolation.
General Manufacturing: Any automated system requiring fast, frequent, and leak-proof isolation of fluids, non-abrasive slurries, or powders.

Integration Ready: This model comes prepared for complete automation integration. We offer a full suite of Solenoid Valves, Positioners, and Limit Switch Boxes to meet your exact control system requirements.