Through-conduit gate valves Type S33.6

Vexve Oy

Designed for full closing of working media flow
Compliant with API 6D standards
Includes accessories like drain, vent, and bypass valves
Very low flow resistance coefficient
TOP ENTRY design - possibility of refurbishment without removal from the piping system
Stem cover with position indicator

Through-conduit gate valves Type S33.6 are isolating valves designed for full closing of the working media flow. They are suitable for temperatures up to 200°C and are full-bore piggable valves with a flow resistance coefficient equal to that of the piping, making them ideal for long-distance pipeline systems. These valves are designed in compliance with API 6D and offer features such as 100% tightness, piggability, and a TOP ENTRY design for refurbishment without removal from the piping system. They support various working media including water, non-corrosive liquids, petroleum and petroleum products, and gas, and are available in a wide range of sizes and classes (NPS 4-48, Class 150-600). The valves are available in welded and flat designs, with flanged and welded ends, and are equipped with manual bevel gear, electric actuator, or pneumatic actuator options. They also feature a special seat design that ensures 100% tightness and allows for automatic pressure relief, along with self-sealing PTFE lip seals or O-rings for the stem.

Use Cases

Typically used in hydrogen and related industrial applications.

Capabilities

Enables full-bore flow with resistance equivalent to pipeline
Operates across Class 150–600 pressure ratings
Supports pipeline sizes NPS 4–48
Provides double block and bleed (DBB) functionality via seat design
Allows automatic pressure relief from valve body cavity to pipeline
Compatible with multiple actuation methods (manual, electric, pneumatic)

Vexve Oy

Vexve is the leading European provider of valve solutions for the energy infrastructure and selected energy-intensive industries. The company is known for the superior product quality, expertise of its personnel, and reliability as a partner. Vexve aims to be the leading provider of mission-critical valve solutions in the transition to a low-carbon future.

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