FLS-R Gate Valve

FLS-R Type Slab Gate Valve


SSV “FLS-R” Type Frac Valve is a high-pressure isolation Gate Valve fitted to the top of the Frac Tree or Wellhead on a well that is about to be hydraulically fractured. The Frac Valve is capable of producing multi staged fracs in the toughest environments. An excellent ROI is achieved through original spare parts and SSV warranty. The Frac Valve can be ball screw operated or manually hydraulically operated.
 “FLS-R” type Frac Valve is strictly under API 6A Monogram, plus many higher SSV company specific standards. The product offerings are enabled by British capital, perfected and finished with both British quality and top brand Made-in-USA components and proprietary manufacturing processes. In particular, our Made-in-USA Ball Screws are specifically designed for this application, our valve trim hard facing process are completed in the state of art facility of industry’s most reputable USA based company. Our pre-energized  seal ring, stem packing and soft goods are all from leading American brands.  All in all a high performance valve giving an excellent ROI.

Features and Benefits

  • Bi-directional design provides flow direction versatility and increased service life.
  • Positive metal-to-metal sealing (gate-to-seat and seat-to-body).
  • Simple, reliable gate and seat design promotes ease of field service and minimal spare parts inventory.
  • Two spring-loaded, pressure energized, non-elastomericlip-seals between each seat and body assist in low pressure sealing. They also protect against intrusion of particle contaminants into the body cavity and seal areas.
  • Lower stem balances pressure thrust on upper stem to reduce operating torque, prevents body cavity pressure build-upduring operation, and provides position indication.
  • Spring-loaded, pressure energized, non-elastomeric stem seal covers full range of pressures, temperatures, and fluids.
  • Pressure-energized metal-to-metal bonnet seal.
  • Either stem can be backseated to allow stemseal replacement with valve under pressure.
  • Grease injection fittings located on the downstream side of the stem and the balancing stem backseat for safety.


4-1/16"      5-1/8"      7-1/16"      9"
10000psi      15000psi
-76 ℉ ~ 250 ℉
Flange      Studded Outlet
Ball Screw Operator ( BSO )
PSL3      PSL3G      PSL4
PR1      PR2