WALWORTH® Slab Gate valves are manufactured and tested in accordance API-6D. This type of valve is very useful in transportation pipelines for gas, crude oil, and oil products. The Slab Gate valves are thru-conduit and piggable.  The slab gate when opened interior has been designed to minimize pressure drop and catch foreign materials into the disc cavity and also avoid the turbulence of the fluid throughout the valve.

WALWORTH® Slab Gate valve uses the resultant force from line pressure to help to have a Mechanical and tight sealing in downstream side when high differential pressure occurs. Low pressure sealing is achieved by internal springs assisting in pushing the seat ring against the gate to obtain the seal.

WALWORTH® offers this product line in the following base materials:

• Carbon Steel such as WCB.
• Carbon Steel for NACE Applications like WCB with 0.25 % C maximum and 22 HRc maximum hardness.
• Low carbon steel for low temperature service like LCB.
• Stainless Steel like CF8M.

Design Features

• Design in accordance API-6D.
• Full thru-conduit port to permit pass scrapers, pigs and wipers.
• Top entry for maintenance inline.
• Double block and bleed.
• Bi-directional.
• Secondary seal seat grease injectors.
• Hand-wheel, Impact Hand-wheel, Chain-wheel, Gear operation, Electric, Pneumatic or Hydraulic Actuation as per Customer requirements.
• Flanged or Butt Weld ends.
• Flanges in accordance ASME/ANSI B16.5 up to 24” nominal diameter.
• Flanges in accordance ASME/ANSI B16.47 from 26” nominal diameter and up.
• Meets Fire Test in accordance API-6FA.
• Test in accordance API-6D.

Product Range