PK Valve Gate Valve B164 4" Class 900 WCB

The PK Valve B164 is a robust cast steel gate valve designed for high-pressure applications in industries such as oil and gas, petrochemical, and power generation. This 4-inch Class 900 valve features a carbon steel body (A216 WCB) with hard-faced trim for enhanced durability and resistance to wear in demanding environments. It complies with API 600 and ASME B16.34 standards, ensuring reliable performance in isolating flow with minimal leakage. Key benefits include its bolted bonnet design for easy maintenance, flexible wedge for tight sealing under varying pressures, and compatibility with a wide range of fluids including hydrocarbons and steam. Compared to similar valves from competitors like Velan or Kitz, the PK B164 offers cost-effective reliability with proven Korean manufacturing quality. Drawbacks may include higher weight compared to lower-class valves and the need for periodic actuation to prevent seizing in inactive lines. Applications include pipeline isolation, refinery processes, and high-temperature systems up to 300°F. Serial or specific manufacturing year not visible; condition assessment based on photos indicates it may require cleaning or refurbishment for optimal use.