Double block and bleed ball valve manufacturers in India

Speciality Valve is a well-known Double Block and Bleed Ball Valve manufacturers in India that offers premium-quality valves for rigorous applications in petrochemical, oil & gas, and process industries. Our valves are particularly designed to provide safe isolation, enhanced safety, and zero leakage even in severe pressure conditions.

Why Required?

Double block and bleed ball valves are required in situations where there is an absolute shutoff required to shut off critical equipment. They help in maintenance, prevent product contamination, and facilitate safe pressure or fluid drainage from the line while saving space and connection points.

Key Components of Double Block and Bleed Ball Valve:

Two independent ball valves: Offer double isolation

Bleed valve: Removes captured fluid or pressure

Body: Typically forged or cast steel

Seats and seals: Provide tight shutoff

Actuator or handle: Manual, pneumatic, or electric operation

Working of Double Block and Bleed Ball Valve:

The DBB ball valve features two seating surfaces and a bleed port between them. When the two isolation valves are closed and the bleed valve is open, any fluid or pressure trapped between the valves can be vented safely. This configuration offers double isolation in reality, reducing leakage downstream.

Advantages of Double Block and Bleed Ball Valve:

Compact design replaces complex multi-valve systems

Increases safety and reliability

Enables inline maintenance and calibration

Reduces possible paths of leaks

Saves installation space and time

Functions of Double Block and Bleed Ball Valve:

Provides isolation and venting

Allows release of pressure in critical systems

Prevents product contamination or product mixing

Assists safe maintenance practice

Types of Double Block and Bleed Ball Valve:

Floating DBB ball valve

Trunnion-mounted DBB ball valve

Manual or actuated DBB valves

Industries:

Oil & gas

Refining

Petrochemical

Power generation

Offshore platforms

Chemical processing

Being one of the top Double block and bleed ball valve manufacturers in India, Speciality Valve complies with global standards such as API 6D, ASME, and ISO. Our valves are subject to strict testing of performance, strength, and safety to fulfil stringent industrial demands.