Slab Gate Valves

As a distributor of industrial valves with many years of experience, we offer a wide range of industrial gate valves used across numerous sectors, including oil & gas, chemical, pulp and paper, food processing, as well as water & wastewater and power generation installations.
The industrial gate valves we supply meet the highest technical requirements, ensuring reliable operation, long service life, and complete tightness even under high pressure and high-temperature operating conditions.

Gate valves available in the Flow Valves portfolio can be equipped with manual actuators (handwheel, gearbox), hydraulic actuators, or electric actuators – in standard versions or with various types of communication modules. Thanks to a wide range of materials and connection configurations (flanged, wafer, threaded, or welded), our industrial gate valves can be tailored to individual project requirements and the specific characteristics of the medium.

If you are interested in working with an experienced industrial valve supplier, please contact us and send your inquiries.

What Is a Gate Valve?

A gate valve is a shut-off valve designed to fully open or completely close the flow of a medium in a pipeline. Unlike control valves, gate valves are not intended for throttling flow – their design allows for a fully open flow passage, minimizing pressure loss within the system.

The operating mechanism is based on the vertical movement of a wedge, plate, or knife, which rises during opening and lowers to tightly shut off the flow when closing the valve.
Thanks to their simple, robust design and ability to operate under a wide range of pressure and temperature conditions, industrial gate valves are among the most commonly used shut-off valves.

Applications of Industrial Gate Valves

Our industrial gate valves are widely used in many industries, including:

chemical and petrochemical industry,
pulp and paper industry,
food and sugar industry,
wastewater treatment plants and water utilities,
steam, water, gas, and compressed air installations.

Due to the wide variety of available models, Flow Valves gate valves can be used in both low-pressure systems and high-pressure, high-temperature applications.

Why Choose Flow Valves?

Wide range of industrial gate valves in various types and materials,
Products supplied by proven, certified manufacturers,
Ability to customize actuators and accessories to customer requirements,
Professional technical consulting and fast order fulfillment,
High quality and reliability confirmed by experience.

Flow Valves – Your partner for reliable industrial gate valves

Slab Gate Valves – A Reliable Solution in Industrial Valve Technology

Slab gate valves are technologically advanced shut-off valves which, thanks to their design, provide a full bore, minimal pressure drop, and excellent tightness in both flow directions. Their defining feature is the full-bore, through-conduit design, which allows unobstructed flow of the medium and enables the use of pipeline pigs—cleaning or inspection devices introduced into the pipeline.

These valves are designed for operation under severe industrial conditions, including oil and gas transmission systems, water pipelines, and chemical processing installations.

Design and Operating Principle of a Slab Gate Valve

A slab gate valve consists of a single slab gate moving between two floating sealing seats. In the open position, the gate is fully lifted out of the flow path, creating a straight, unobstructed flow channel. This eliminates turbulence and ensures a very low pressure drop.
In the closed position, the gate lowers between the seats, providing tight shut-off in both flow directions.

Thanks to this design, slab gate valves offer:

bi-directional sealing,
low flow resistance,
high resistance to wear and corrosion,
stable operation under high pressure and high temperature conditions.

Key Technical Features

Full-Bore, Through-Conduit Design

The bore diameter matches the pipeline diameter, ensuring minimal pressure loss and allowing safe pigging operations without the risk of damaging valve components. This design increases system efficiency and reduces energy losses.

Tight, Bi-Directional Sealing

The use of a floating slab gate and two floating seats provides bubble-tight sealing in both flow directions. The downstream seat is pressure-energized by the medium, while the upstream seat is spring-loaded. This ensures full tightness regardless of flow direction or pressure fluctuations.

Low Pressure Drop

The smooth, straight flow channel eliminates turbulence, resulting in reduced energy consumption and lower hydraulic losses. This is a key advantage, particularly in long-distance pipeline systems.

Applications of Slab Gate Valves

Due to their reliability, tight shut-off, and resistance to harsh operating conditions, slab gate valves are widely used in various industrial sectors, including:

oil and gas pipelines – flow isolation and control in transmission lines,
water treatment and purification installations,
chemical and petrochemical plants,
high-pressure industrial systems,
wellhead systems and manifolds,
process media transport and storage installations.

Flow Valves Slab Gate Valves

Flow Valves Sp. z o.o. offers a wide range of slab gate valves designed for operation under diverse technological conditions. Our products meet the highest quality and safety standards, and thanks to precision engineering and robust materials, they ensure reliable performance over many years of service.

These solutions are developed for the most demanding industrial applications, where reliability, tightness, and operational safety are essential.