WALWORTH® Expanding Gate valves are manufactured and tested in accordance with API-6D.

This type of valve is suitable for onshore and offshore applications where suspended and abrasive solids are present in the fluid or for oil and gas transportation and isolation service.

The double block and bleed design offers a proper seal in between both seats and the gate in both high and low pressure, for this reason line pressure is not needed to seal the valve. The principle of operation is based in two segmented members of a disc which at open or closed position is capable to seal in both directions.

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

a) Carbon Steel such as WCB, WCC.

b) Carbon Steel as per ASTM A216 grade WCB for NACE MR0-175 with 0.25%C maximum and 22HRc maximum hardness.

• Design in accordance with API-6D.
• Full thru-conduit port to permit pass scrapers, pigs and wipers.
• Top entry for maintenance inline.
• Double block and bleed at open or closed position.
• Bi-directional.
• Hand-wheel, Impact Hand-wheel, Chain-wheel, Gear operation, Electric, Pneumatic or Hydraulic Actuation as per Customer requirements.
• Hard faced option is available for severe service with Tungsten carbide or stellite applied by HVOF process.
• Test in accordance with API-6D.

Product Range