Bray TriLok valves used in large-scale water infrastructure project

Contents

Triple offset butterfly valves at critical points
The TriLok series was the solution
477 valve packages for seven phases

In a large-scale water infrastructure project in the south-central United States, Bray TriLok triple offset butterfly valves were selected for critical isolation and flow control points. A total of 477 valve and gear operator packages were supplied across the project’s seven phases.

Carried out by a US-based water and sewer infrastructure construction company, the project involves extending existing lake water transmission lines, in use for more than 50 years, by over 160 kilometres. The new transmission lines are intended to supply water to more than one million people and support the region’s long-term population growth.

Triple offset butterfly valves at critical points

In transmission lines controlling large volumes of water, butterfly valves are widely used because of their compact design, low weight and quarter-turn operating principle.

The project design team included triple offset butterfly valves in the technical specification with the aim of long service life and low maintenance at critical isolation and flow control points.

The project also required the valves to have a special flat-face connection design and to be fitted with manual gear operators with a 2-inch (51 mm) square nut for use in buried applications.

The TriLok series was the solution

Following technical work with the general contractor, Bray offered TriLok Series triple offset butterfly valves with manual gear operators in line with the project requirements.

According to information provided by Bray, the triple offset geometry of the TriLok Series helps reduce wear on the seat and sealing surfaces as the valve opens and closes.

The metal-to-metal, torque-seated sealing system is designed for bidirectional shut-off, while the field-replaceable seat and seal system aims to reduce maintenance times and repair needs.

477 valve packages for seven phases

After a technical evaluation and approval process carried out in the early stages of the project, Bray was selected as the approved supplier of triple offset butterfly valves for all seven phases of the project.

A total of 477 valve and gear operator packages were supplied for the water transmission project. As a result, TriLok Series valves were incorporated into the project at critical points where isolation and flow control take place in the large-diameter water infrastructure.