All About FLS Gate Valves


Discover how FLS gate valves work out in the field.

FLS gate valves are valves that incorporate a slab gate to block fluid flow when closed. These valves should be operated either fully open or fully closed.

This type of FLS valve is used in oilfield applications involving the control of oil and gas media such as hydrocarbons. They’re used for:

  • Cementing operations
  • Manifolds for well control
  • Fracturing operations
  • Production and frac wellhead trees

Compatibility is very important. The FLS gate valves provided by Heshka Oil are fully compatible with popular Cameron FLS gate valves, and the internals are fully interchangeable. Whatever valves are used they should be full bore through conduit in standard API flange configurations.

How an FLS Gate Valve Works

FLS gate valves come in manually operated, pneumatically operated and hydraulically operated configurations. This valve is designed for critical applications including sour service and fracturing operations.

The valve is bi-directional in nature and includes metal to metal sealing between the gate and seat interface. There are two spring-loaded, pressure energized, non-elastomeric seals between each seat and the valve body. These seals provide low pressure sealing assist as well as provide a barrier to keeping particulate matter from entering the valve body cavity.

Easily field serviceable, utilization of the stem to bonnet backseat feature allows for the replacement of the stem packing, bearings, bearing races and grease fittings all with pressure still in the valve ensuring production can continue.

FLS Gate Valve Sizes

FLS gate valves are commonly constructed in sizes ranging from 1-13/16” to 4 1/16”. The pressure ratings range from 2,000 to 20,000 PSI. We remind our customers that commonality of parts across some sizes and pressure ranges reduces inventory and gives greater flexibility during the maintenance and service of these valves.

Heshka Oil has FLS gate valves in stock at both our Conroe and Midland locations. We keep our warehouse stocked to meet the demands of our customers no matter what they need. Call us at 936-760-3453 or visit our website to order FLS gate valves directly from

Save Time and Money - Buy FLS Gate Valves Online!

Have questions about FLS gate valve replacement parts? The Heshka Oil blog has the latest product reviews and overviews on how parts work! 

Posted On:

26th Feb 2022