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

Compact Isolation with Bi-Directional Security

This specialized knife gate valve is engineered for installations where vertical clearance is limited, but absolute shut-off reliability is non-negotiable. Featuring a Non-Rising Stem design, the valve’s overall height remains constant whether fully open or closed, making it ideal for confined spaces.

The Bi-Directional sealing capability ensures maximum safety by providing tight isolation against pressure from either side of the gate, while the Lug-style body simplifies maintenance by allowing for isolated pipeline servicing. It is the perfect choice for compact, critical manual isolation.

Key Features & Advantages

Feature Category	Technical Detail	Operational Benefit
Space Efficiency	Non-Rising Stem Design	Keeps the overall valve height constant, eliminating the need for overhead clearance and making installation in tight or subterranean spaces possible.
Sealing Security	Bi-Directional Sealing	Guarantees reliable, tight shut-off against pressure or backflow from either pipeline direction, essential for system safety and process flexibility.
Maintenance Ease	Lugged Connection Body	The body’s threaded bolt holes facilitate easy disassembly and servicing of the valve from the pipeline’s dead side without disturbing the active side.
Flow & Operation	Manual Handwheel & Round Port	Provides simple, direct manual control and ensures a full, unobstructed flow path when open, minimizing pressure drop and wear.
Reliability	Bonnetless Structure (Implied)	The core knife gate design prevents the accumulation of solids and particles in the valve’s operating area, ensuring consistent cycling.

Technical Specifications (Standard Model)

Parameter	Specification Range
Valve Type	Knife Gate Valve
Actuation Method	Manual Handwheel
Stem Design	Non-Rising Stem
Sealing Direction	Bi-Directional
Connection Type	Lug Type (Fully Tapped Holes)
Port / Flow	Round Port / Full Bore
Media Compatibility	General fluids, wastewater, low-abrasion slurries, and powders.
Body Material Options	Ductile Iron (GGG40/50), Stainless Steel (SS316), or Carbon Steel (WCB)
Gate Material	Stainless Steel (SS304 / SS316)
Seating Material	Resilient (e.g., EPDM, NBR) or Metal Seated

Target Industry Applications

This valve is indispensable in applications where space constraints are a primary factor:

Underground or Subterranean Installations: Ideal for pits, vaults, or buried pipelines where vertical height is extremely limited.
Compact Pumping Stations: Used for pump suction and discharge lines in cramped industrial facilities.
Food & Beverage/Chemical Processing: Isolation in areas with low ceilings, overhead ducting, or tight piping arrangements.

Note: Since the stem does not rise, a Position Indicator is usually built into the yoke or handwheel assembly to visually verify the gate’s internal status.