API 6A DBB Pipeline Ball Valves

DBB Pipeline Ball Valves

We produce a range of Trunnion Ball and Floating Double Block and Bleed Valves. We offer true double isolation with two independent ball valves contained in one valve body, guaranteeing absolute shut-off and maximizing the safe operation of any processing facility.

Specifications

Design Standards: ASME B16.34, API 6D, ASME VIII, ASME B16.5
Firesafe Standards: API 607, API6FA, ISO 10497
Optional Features: Seat and Stem Injection Points; Ball Cavity Drain and Vent Ports; Double Piston Effect (DPE) Seats:; PTFE Lip Seals
Pressure Rating: ASME Class 150 to 2500, API 6A up to 10,000 API
Soft Seats:: Devlon, PEEK, PTFE & Metal Seats:: Tungsten Carbide and Chrome Carbide
Temperature Range: -50 deg c to 200 deg C, high temperature option up to 315 deg C available

Product Overview

Modular Double Block and Bleed valves from Oliver Twinsafe are designed to offer one valve solution, available in most sizes to fit in the same space as a single ball valve or with the shortest possible face-to-face dimension. This compact design saves weight and space and reduces costly installation charges, whilst providing true double isolation for maximum safety and reduced process problems due to valve leakage.

The key benefits of the Oliver Twinsafe Valves are:

Space-saving – ability to replace single isolate valves with a true double block and bleed valve, but within the same overall length, ensuring that expensive pipework modifications are kept to an absolute minimum.
Weight-saving – compared to a conventional Double Block and Bleed hook up of two separate ball valves with a central spool piece and vent valve, weight savings can be over 50%.
Increased Safety – compared to a conventional Double Block and Bleed arrangement using separate valves, the number of potential leak points is greatly reduced.
Cost-saving – fewer items to purchase and expedite means overall cost savings, plus lower installation and maintenance costs.

Reliable Isolation and Safety

Double Block and Bleed Valves offer true isolation, ensuring maximum safety by preventing leakage between isolated sections.

Compact and Efficient Design

These valves provide a space-saving solution, integrating two independent ball valves into one compact body for easy installation.

Built for Harsh Environments

Engineered for high-pressure applications, our DBB valves are designed to perform reliably under extreme conditions, reducing maintenance needs.