Manual Handwheel Round Port Lug Rising Stem Uni-Directional Knife Gate Valve

Reliable Uni-Directional Isolation with Optimized Maintenance

This Knife Gate Valve is the dependable standard for on/off isolation in pipelines where flow direction is consistent and predictable. Engineered for reliability, the Uni-Directional sealing system ensures a tight, guaranteed shut-off against pressure from the designated upstream side.

The valve features a Manual Handwheel for direct control, a Lug-style body for easy in-line maintenance, and a Rising Stem for clear visual feedback. It is the cost-effective and robust solution for general industrial and process fluid isolation needs.

Key Features & Operational Advantages

Feature Category	Technical Detail	Operational Benefit
Sealing Reliability	Uni-Directional Sealing	Guarantees effective, tight isolation against the full-rated pressure when the flow comes from the designated inlet side.
Maintenance Ease	Lugged Connection Body	Features threaded bolt holes, allowing for the isolated removal of the valve from the pipeline by loosening and removing fasteners from one side only.
Operation	Manual Handwheel	Provides simple, direct, and reliable actuation for easy control and low-maintenance operation.
Safety Indication	Rising Stem	The vertical movement of the stem offers immediate, clear visual confirmation of the valve’s open or closed status, enhancing safety and monitoring.
Flow Efficiency	Round Port Geometry	Ensures a full, unobstructed flow path when open, minimizing turbulence, pressure loss, and wear in the pipeline.
Design	Bonnetless Structure (Typically)	Simplifies the valve top-works, ensuring particles and general debris do not accumulate above the gate, promoting smooth cycling.

Technical Specifications (Standard Model)

Parameter	Specification Range
Valve Type	Knife Gate Valve
Actuation Method	Manual Handwheel
Sealing Direction	Uni-Directional (Flow direction must be respected)
Connection Type	Lug Type (Fully Tapped Holes)
Stem Design	Rising Stem
Port / Flow	Round Port / Full Bore
Pressure Rating	PN10, PN16, or ANSI Class 150
Body Material Options	Ductile Iron (Standard), Carbon Steel, Stainless Steel (Varies by media)
Gate Material	Stainless Steel (SS304 / SS316)
Seating Material	Resilient (e.g., EPDM, NBR) or Metal Seated

Target Industry Applications

This valve is the workhorse for manual isolation in standard industrial services where flow is known and maintenance access is valued:

Wastewater Treatment: Isolation of non-critical secondary lines, drainage, and effluent systems.
Pulp & Paper: Isolation of less concentrated stock lines and process water.
Chemical Processing: Handling non-corrosive, non-hazardous general utility fluids.
Mining & Minerals: Isolation of process water and low-concentration slurry lines.

Recommendation: For sizes larger than DN300 (12″), consider upgrading the actuation to a Bevel Gear Operator to significantly reduce manual effort required to cycle the valve.