Knife Gate Valves

At Cleanflow, we supply premium Knife Gate Valves from RIV, designed for industries that demand precision, durability, and easy maintenance. Whether handling slurry, viscous fluids, or dry bulk materials, RIV Knife Gate Valves deliver reliable performance in challenging environments. Built for quick operation and long service life, these valves are trusted in mining, wastewater, pulp and paper, and chemical applications.

Brand History

RIV has a long-standing history of excellence in valve manufacturing. Originating in Europe, RIV has developed a reputation for engineering high-quality industrial valves, focusing on innovative designs, durability, and user-friendly operation. With decades of experience serving the industrial sector, RIV continues to set the standard for precision, reliability, and safety in valve technology.

Why Choose RIV Knife Gate Valves?

Quick Opening Design: RIV’s quick-opening lever and piston models ensure fast and efficient flow control, minimizing downtime and increasing productivity.
Durable Brass Construction: Manufactured with high-grade brass, RIV valves offer excellent corrosion resistance and long service life even in harsh conditions.
Heat Jacket Options: Select models feature an integrated heat jacket to maintain material flow and prevent clogging or freezing in cold environments.
Compact and Versatile: Ideal for tight spaces and demanding installations, RIV Knife Gate Valves are designed for easy integration into existing piping systems.
Reliable Sealing: Precision-machined components provide tight shutoff capabilities, even in suspended solids or high-viscosity fluids applications.

Best-Selling RIV Knife Gate Valves

RIV Valves

RIV Valves features advanced valve technology for industrial fluid control systems. RIV Valves specializes in solutions for water management, oil and gas, chemical processing, and mining, and it is known for innovation, reliability, and precision engineering. The valves are designed to handle extreme conditions and ensure optimal performance in critical applications.

RIV Quick Opening Lever Knife Gate Valve with 4-Bolt Flange & Female NPT

RIV Quick Opening Lever Knife Gate Valve is designed for liquid waste management, particularly in septic vacuum trucks and bulk waste tanks. It features an all-bronze construction, a lever-action mechanism, a 4-bolt flange on one side, and female NPT threads on the other. This valve is manufactured in Italy.

RIV Brass Quick Opening Lever Knife Gate Valve with Heat Jacket

RIV Brass Quick Opening Lever Knife Gate Valve with Heat Jacket is designed for fast and reliable fluid control, particularly in bulk waste tanks. It features a cast bronze body, a quick-opening lever, female NPT threads on both sides and a heat jacket to prevent freezing by circulating vehicle coolant.

RIV Quick Opening Piston Gate Valve | 4-Bolt Flange X Female NPT

RIV Quick Opening Piston Gate Valve is designed to manage liquid waste in septic vacuum trucks. It features all-bronze construction, a detachable bolt cap for inspections, a 4-bolt flange on one side, and female NPT threads on the other. It is available in 4" and 6" sizes and made in Italy.

Primary Purposes of Knife Gate Valves

Fluid Shut-off and Isolation
The primary function of a knife gate valve is to completely shut off or isolate the flow of fluids within a pipeline. When closed, the gate or blade embeds into the seat, effectively preventing fluid passage, vital for maintenance, safety, or process control
Handling of Thick, Viscous, and Slurry Media
Designed with a sharpened blade, these valves can cut through heavy, viscous, and slurry media, making them ideal for applications involving abrasive, corrosive, or high-solids content fluids. They are particularly effective in systems where solids tend to clog or damage other valve types.
Control of Solids and Sludge
Knife gate valves are used extensively in wastewater treatment, sewage systems, mining, and pulp and paper industries to control the flow of semi-solid or sludge-like materials. Their design allows them to manage high-density solids without clogging or leakage.
Suitable for Harsh and Corrosive Environments
Many knife gate valves are manufactured with corrosion-resistant materials such as stainless steel, enabling their use in chemically aggressive environments like chemical plants, acid handling, and wastewater treatment, where corrosion is a significant concern.
High Flow Capacity with Low-Pressure Drop
When fully open, these valves provide a full-bore flow path, ensuring minimal pressure loss and high flow rates, which is essential in applications demanding efficient fluid transfer.

Knife Gate Valves FAQs

1. What is a knife gate valve used for?
Knife gate valves are designed to cut through thick fluids, slurries, or dry materials, offering a clean and precise shutoff even in challenging conditions.

2. What makes RIV knife gate valves stand out?
RIV valves are known for their quick-opening designs, durable brass construction, and optional heat jackets, providing dependable performance across various industries.

3. What is the benefit of a heat jacket on a knife gate valve?
A heat jacket helps maintain product temperature, preventing thick fluids from solidifying and ensuring smooth valve operation, especially in cold or critical processes.

4. Are RIV knife gate valves easy to install?
Yes. Featuring standardized flange connections and FNPT threaded ports, RIV valves are designed for easy integration into new and existing systems.

5. Which industries use knife gate valves the most?
Knife gate valves are widely used in mining, wastewater treatment, pulp and paper, chemical processing, and food manufacturing — anywhere flow control of slurries, powders, or viscous fluids is required.

Explore our full range of RIV Knife Gate Valves today and upgrade your system with proven performance, fast operation, and long-lasting durability.

Knife Gate Valves

Knife Gate Valves

Why Choose RIV Knife Gate Valves?

Best-Selling RIV Knife Gate Valves

RIV Valves

RIV Quick Opening Lever Knife Gate Valve with 4-Bolt Flange & Female NPT

RIV Brass Quick Opening Lever Knife Gate Valve with Heat Jacket

RIV Quick Opening Piston Gate Valve | 4-Bolt Flange X Female NPT

Primary Purposes of Knife Gate Valves

Knife Gate Valves FAQs

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