Pneumatic Round Port Lug Uni-Directional Knife Gate Valve

Automated, High-Speed Isolation for Consistent Flow

This knife gate valve is designed for industrial applications that require rapid, automated on/off cycling where the flow direction is always consistent and known. Equipped with a high-thrust Pneumatic Cylinder Actuator, this valve is built for fast action and remote control integration.

Its core features—Uni-Directional sealing and the easily serviceable Lug-style body—make it a reliable, high-efficiency workhorse for automating fluid and slurry lines. The design prioritizes speed, secure isolation against forward pressure, and reduced maintenance downtime.

Key Features & Automation Advantages

Feature Category	Technical Detail	Core Operational Benefit
Automation	Pneumatic Cylinder Actuator	Provides rapid, reliable, high-speed cycling, ideal for frequent operation, batch sequencing, and fast-response shut-off sequences.
Maintenance Ease	Lugged Connection Body	Features individually threaded bolt holes, allowing maintenance personnel to remove the valve from the pipeline by disassembling the flanges from one side only, greatly reducing downtime.
Sealing Security	Uni-Directional Sealing	Guarantees effective, bubble-tight isolation against the full-rated pressure when the media flows from the designated inlet side.
Flow Efficiency	Round Port Geometry	Ensures a full, unobstructed flow path when open, minimizing pressure loss and maximizing throughput for general fluids and light slurries.
System Integration	Rising Stem Design (Typical)	The stem movement provides clear visual indication and facilitates easy mounting of limit switches for feedback to the Plant Control System (PCS).
Reliability	Bonnetless Structure (Implied)	The simplified top design prevents the accumulation of solids and debris above the gate, ensuring smooth and consistent operation in automated cycles.

Technical Specifications (Standard Pneumatic Model)

Parameter	Specification Range
Actuation Method	Pneumatic Cylinder (Double-Acting or Single-Acting)
Sealing Direction	Uni-Directional (Flow direction must be respected)
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
Gate Material	Stainless Steel (SS304 / SS316)
Seating Material	Resilient (e.g., EPDM, NBR) for bubble-tight sealing.

Target Industry Applications

This valve is essential in high-cycle processes where quick, automated, and single-direction isolation is necessary:

Batch Sequencing & Dosing: Automated control of ingredient or fluid flow in manufacturing and chemical batch systems.
Wastewater Treatment: Automated isolation of secondary and tertiary process lines, clarifier drains, and filtrate systems.
Pulp & Paper: Automated control of less concentrated stock lines, process water, and utility flows.
General Industrial: Any automated utility or process line requiring reliable, fast on/off control.

Integration Ready: We supply a full range of pneumatic accessories, including Solenoid Valves, Limit Switch Boxes, and Filter Regulators, ensuring straightforward integration into your existing DCS or PLC control system.