Specification

Forged A105 Stainless Steel 304/316 CF8 WCB High Temperature Manual Cast Steel Gate Valve

I. Product Overview

As a key shut-off device in industrial pipeline systems, the custom forged A105 stainless steel 304/316 CF8 WCB high-temperature manual cast steel gate valve serves as a core fluid control component in petroleum, chemical, power, metallurgy, and other industries. Constructed from forged A105 carbon steel and 304/316 stainless steel, combined with cast steel forming processes, this valve achieves on-off control through manual operation. It is suitable for temperature ranges from -29°C to 425°C and pressure classes from PN0.6 to 2.5MPa, stably managing the flow of various media such as cement, oil products, seawater, and gases.

II. Core Features: Multi-dimensional Technical Advantages

Material Combination & Environmental Adaptability
The valve body employs WCB cast steel (complying with ASTM A216 standards) or 304/316 stainless steel (AISI 304/316), while A105 forged carbon steel components are heat-treated for enhanced strength and impact resistance. The stainless steel version resists corrosion from seawater and acid-base media, while the WCB cast steel type suits high-temperature, high-pressure industrial scenarios like steam pipelines and petroleum refining units.

Sealing System & Structural Design
The seal surface undergoes hardening treatment with 2Cr13 stainless steel, and the valve seat is inlaid with Stellite hard alloy. Through grinding processes, mirror-level fitting precision is achieved, meeting bubble-tight standards (API 598 testing requirements). The gate plate and stem feature a rigid connection with a back-seal structure, preventing medium leakage along the stem and ensuring operational safety.

Temperature & Pressure Resistance
With a medium temperature range covering -29°C (low-temperature liquefied gas scenarios) to 425°C (high-temperature steam or thermal oil systems), and a pressure range of PN0.6 to 2.5MPa, it adapts to medium and low-pressure industrial pipelines, satisfying most conventional working conditions.

Operational & Maintenance Convenience
The manual gear transmission design ensures uniform torque output, reducing switching torque by over 30%. Combined with an outside stem and yoke (OS&Y) structure, the valve’s opening/closing status can be visually judged by the stem extension. The bonnet and body are bolt-connected for easy disassembly, facilitating on-site maintenance and seal replacement.

III. Key Attributes: Technical Parameters & Standard Compliance