Simple yet rugged and reliable through-conduit valve

The WKM™ Saf-T-Seal™ slab gate valve uses two floating seats to provide a complete seal with the gate. Each seat has a metal face and a peripheral seal. The fullbore design creates the same pressure drop as an equivalent length of pipe and allows passage of all types of scrapers (pigs).

The valves are designed for a wide range of applications, including

• mainline and manifold valves
• tank and station valves
• storage wells
• brine-flood or waterflood valves
• safety valves or emergency shutdown (ESD) valves
• CCUS, renewable fuels, and ammonia service.

Reliable performance and long life

The Saf-T-Seal valve's through-conduit design provides the following advantages:

• protection of seat faces
• smooth, continuous conduit for flow
• block-and-bleed capability
• capability for inline, field repairs
• certified fire safe to API Spec 6FA and ISO 10497
• fugitive emissions certified per ISO 15848-1.

• The stem seal is a single fugitive emissions– and fire-tested SLS™ spring-loaded lip seal, which reduces maintenance requirements and eliminates the need for plastic packing.
• Spring-loaded seats relieve internal body pressure.
• Stem back seat per API Spec 6D prevents stem ejection.
• Metal-to-metal seal between the stem and bonnet in the upward position isolates the stem seal from line pressure.
• Seat and stem injection of lubricant or emergency sealant reduce operating torques, help increase valve life, and provide emergency sealing capability.
• Installation orientation is flexible.