Integral Blind Subs 

Integral Blind Subs

Precision Engineered for Critical Isolation Applications

Integral Blind Subs are expertly designed to provide reliable isolation in drilling, completion, and intervention operations. These critical components are engineered for seamless integration into the flowline, ensuring the safety and efficiency of oilfield operations. Our Integral Blind Subs are manufactured from premium materials to withstand the demanding conditions of the oil and gas industry.

Technical Specifications of Integral Blind Subs


High-strength steel alloys for maximum durability and resistance to high pressure and corrosive environments.


Available in a range of sizes to suit various piping specifications.

Pressure Ratings

Engineered to handle high-pressure environments, ensuring a secure seal and reliable performance.

Connection Types

Compatible with standard industry connection types for easy integration into existing systems.

Applications and Use Cases​

Integral Blind Subs are essential for

Pressure Testing

Ensuring the integrity of the flowline and equipment by providing a secure means for pressure testing.

Flowline Isolation

Offering a reliable solution for isolating sections of the flowline during maintenance or in the event of an emergency.

System Integration

Designed to integrate seamlessly with a variety of drilling and production equipment, enhancing overall system safety and efficiency.

Benefits and Features

Leak-Proof Seal

Provides a tight and secure seal to prevent leaks and ensure operational safety.

High Durability

Constructed to endure the rigors of the oilfield environment, including exposure to high pressures and corrosive fluids.

Easy Installation

Designed for quick and straightforward installation, minimizing downtime and operational disruptions.


Suitable for a wide range of applications across drilling, completion, and intervention operations.

Popular Questions


Yes, these assemblies must be customized to seamlessly integrate into the flowline.

Competitive pricing available upon request.

Stocked in common sizes, with custom options available to meet unique operational requirements.

Hammer Unions
Hose Nipple Unions
Hammer Seal Unions

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