Description

Through Conduit Gate Valve Manufacturer in India

Unitek Valves is a leading Through Conduit Gate Valve Manufacturer in India, offering robust isolation valves engineered for oil & gas transmission, petroleum, refinery and critical pipeline applications. Based in Mumbai, India, we manufacture, supply and export pipeline valves designed for reliable shut-off, unrestricted flow and dependable performance under demanding operating conditions.

A Through Conduit Gate Valve provides a continuous, unobstructed flow passage when fully open. The full-bore design minimizes flow resistance and pressure drop while allowing pipeline cleaning and inspection tools to pass through the valve. This makes the design particularly suitable for long-distance transmission pipelines and applications where pigging capability is required.

Our valves are available in various configurations, including slab gate and expanding gate designs, with flanged or butt-weld end connections. Manual, gearbox, pneumatic, hydraulic and electric actuation options can be provided depending on valve size, pressure class, operating conditions and project requirements.

API 6D Through Conduit Gate Valves

Unitek manufactures API 6D Through Conduit Gate Valves for pipeline isolation applications where full-opening flow characteristics and dependable shut-off are essential. Valves can be designed and manufactured in accordance with applicable standards such as API 6D, ASME B16.34, ASME B16.10 and API 598, depending on the specified design and project requirements.

The full bore gate valve configuration maintains a clear flow path in the fully open position, helping minimize turbulence and pressure loss across the valve. This feature also makes the valve suitable for piggable pipeline systems used for cleaning, inspection and maintenance operations.

Valves are available in multiple sizes and ASME pressure classes, with design, testing and documentation provided according to customer specifications and applicable project standards.

Slab Gate & Expanding Gate Designs

Depending on the service conditions and project specifications, through-conduit valves can be supplied in different gate configurations.

Slab Gate Valves use a single-piece parallel slab gate and are widely used for pipeline isolation where reliable operation and a full-opening bore are required.

Expanding Gate Valves use an expanding gate arrangement designed to achieve positive mechanical seating in the closed position. The appropriate configuration can be selected according to pressure, fluid characteristics, operating conditions and project specifications.

Both designs can be configured for demanding oil, gas and hydrocarbon pipeline applications.

Full Bore & Piggable Pipeline Design

One of the major advantages of this valve design is its full-port flow passage. When fully opened, the bore is designed to provide an unobstructed path through the valve.

This provides several operational benefits:

• Low flow resistance
• Reduced pressure drop
• Full-bore pipeline flow
• Pipeline pigging capability
• Reliable pipeline isolation
• Suitable operation for transmission lines
• Reduced turbulence across the valve

These characteristics make full bore gate valves particularly suitable for applications where maintaining pipeline efficiency is critical.

Materials of Construction

Unitek Valves offers various body and trim materials to suit different process fluids, operating temperatures and pipeline environments. Common material options include:

• ASTM A216 Gr. WCB Carbon Steel
• ASTM A352 Gr. LCB / LCC
• ASTM A351 Gr. CF8
• ASTM A351 Gr. CF8M
• Stainless Steel 304 / 316
• Duplex Stainless Steel
• Alloy Steel
• Other special materials as per project requirements

A WCB Through Conduit Gate Valve is commonly selected for carbon steel pipeline applications, while stainless steel, low-temperature carbon steel and duplex materials can be offered for specific process and environmental conditions.

Seat, stem, gate and sealing materials can also be selected according to the operating medium, pressure, temperature and customer specifications.

Pressure Classes & End Connections

Our pipeline gate valves can be supplied in various pressure ratings, including:

ASME Class 150, 300, 600, 900, 1500 and 2500, subject to valve size, design and project requirements.

Available end connections include Raised Face (RF) Flanged, Ring Type Joint (RTJ) Flanged and Butt Weld (BW) configurations.

For larger sizes or remote pipeline installations, valves can be supplied with gearbox, pneumatic, hydraulic or electric actuators to meet operational requirements.

Testing & Quality Control

Valves are inspected and tested according to applicable standards and approved project requirements. Testing may include shell pressure testing, seat leakage testing and functional testing, depending on the valve design and specified inspection plan.

Additional inspection and documentation requirements can also be accommodated according to customer specifications, applicable standards and project requirements.

Unitek Valves focuses on dimensional accuracy, material compliance, pressure integrity and reliable operation throughout the manufacturing and inspection process.

Through Conduit Gate Valves for Oil & Gas Pipelines

The full-bore and low-pressure-drop characteristics make these valves particularly suitable for demanding pipeline applications such as:

• Oil & Gas Transmission Pipelines
• Crude Oil Pipelines
• Natural Gas Pipelines
• Petroleum Product Pipelines
• Refineries
• Petrochemical Plants
• Gas Processing Facilities
• Pipeline Terminals
• Tank Farms
• Compressor & Pumping Stations
• Industrial Pipeline Systems

For applications requiring pipeline cleaning or inspection, the unobstructed bore enables the passage of compatible pipeline pigs when the valve is fully open.

Through Conduit Gate Valve Supplier & Exporter in India

As an established Through Conduit Gate Valve Supplier in India, Unitek Valves supplies valves according to customer specifications, applicable standards and operating requirements. From Mumbai, Maharashtra, we serve customers throughout India and support overseas projects as a Through Conduit Gate Valve Exporter from India.

Our capability includes different sizes, pressure classes, body materials, trim combinations, end connections and actuation arrangements for pipeline and industrial applications.

Customers can share their required valve size, pressure class, material of construction, end connection, pipeline medium, operating pressure, temperature, actuation and applicable standards for technical evaluation and quotation.

Unitek Valves provides engineered industrial valve solutions with a focus on quality, reliable isolation, testing and compliance with applicable project requirements.

Material :	Carbon Steel, Alloy Steel, Low Temperature carbon Steel, Stainless Steel, Duplex Stainless Steel, Super Duplex Stainless Steel, any other special material.
Trims :	Varieties of combinations
Operator :	Handwheel, Gear, Chain Wheel Pulley, Electrical Motor Actuator.
Note :	• Oval Flat Body Bonnet Joints for 150 lbs. • Male Female Body Bonnet Joints for ratings ≥300 lbs • RTJ Joints on request. • RTJ Body Bonnet • Joints for ratings ≥ 1500 lbs (standard)
Optional :	Electrical & Geared Drive, Bypass arrangement, Floor stand, Expandable Slab Design