| Cast Stainless Steel Gate Valves-ANSI Class 150/300, |
| Investment casting body and cap |
| Outside Screw and Yoke,Bolted Bonnet Flexible Wedge,Fully Guided |
| Integral Seats,Rising Stem and Non-Rising Handwheel |
| Available with Gear operator |
| Size:1/2 to 12 inches |
| Materials:CF3M,CF8M,CF8,WCB |
Cast Stainless Steel Gate Valves – ANSI Class 150 / 300
The Cast Stainless Steel Gate Valves ANSI Class 150 / 300 are designed for reliable shut-off control in industrial pipeline systems. These valves are manufactured with a precision investment casting body and bonnet, ensuring excellent mechanical strength, corrosion resistance, and long service life in demanding environments.
The valve features an Outside Screw and Yoke (OS&Y) structure with a bolted bonnet, allowing easy inspection and maintenance. The flexible wedge design with full guiding ensures tight sealing and stable operation during opening and closing.
Equipped with integral seats, a rising stem, and a non-rising handwheel, the valve provides clear visual indication of the valve position and smooth operation. For larger sizes or higher torque applications, the valve can also be supplied with an optional gear operator.
Manufactured to meet international industrial standards, these gate valves are widely used in oil and gas pipelines, petrochemical plants, power generation facilities, water treatment systems, and industrial fluid control applications.
Supplied by SHAANXI GOLD-STONE I/E CO., LTD., the valves provide reliable performance for global industrial pipeline systems.
Key Features
Investment Casting Construction
The investment casting body and bonnet provide high structural strength, corrosion resistance, and dimensional accuracy.
Outside Screw and Yoke (OS&Y) Design
The OS&Y structure allows easy inspection of the stem position and improves operational safety.
Flexible Wedge Disc
The flexible wedge design ensures reliable sealing performance and compensates for thermal expansion or pipeline stress.
Integral Seat Design
The valve includes integral seats, ensuring durability and stable sealing performance.
Rising Stem Operation
The rising stem design provides clear indication of valve position during operation.
Optional Gear Operator
For larger valves or high torque requirements, an optional gear operator is available for easier operation.
Technical Specifications
Valve Type: Cast Stainless Steel Gate Valve
Pressure Class: ANSI Class 150 / Class 300
Size Range: 1/2″ – 12″
Body Construction
Investment Casting Body and Cap
Bonnet Type
Bolted Bonnet
Stem Type
Rising Stem
Operation
Handwheel (Optional Gear Operator)
Available Materials
The valve can be manufactured using different materials depending on application requirements:
CF8 (Stainless Steel 304) – Suitable for general industrial applications
CF8M (Stainless Steel 316) – Excellent corrosion resistance for chemical environments
CF3M (Low Carbon SS316) – Enhanced corrosion resistance and improved weldability
WCB Carbon Steel – High strength material for industrial pipeline systems
Typical Application Industries
Oil and Gas Pipelines
Used for reliable shut-off and isolation in upstream and downstream pipeline systems.
Petrochemical Plants
Suitable for high-pressure and corrosive media control.
Power Generation Facilities
Installed in steam, water, and industrial process pipelines.
Water Treatment Systems
Used in water supply and wastewater treatment pipelines.
Industrial Manufacturing Systems
Provides reliable fluid control in industrial processing pipelines.
Frequently Asked Questions (FAQ)
What is the function of a gate valve?
A gate valve is designed to provide full open or full close flow control in pipelines, minimizing pressure drop when fully open.
What does OS&Y mean in gate valves?
OS&Y (Outside Screw and Yoke) means the valve stem moves outside the valve body, providing a clear indication of the valve position.
What is a flexible wedge gate valve?
A flexible wedge gate valve uses a flexible disc that improves sealing performance and compensates for thermal expansion.
What industries commonly use stainless steel gate valves?
They are widely used in oil and gas, petrochemical plants, power generation, water treatment, and industrial pipeline systems.
What materials are available for these gate valves?
Common materials include CF8, CF8M, CF3M stainless steel and WCB carbon steel depending on application requirements.
Supplier
SHAANXI GOLD-STONE I/E CO., LTD. supplies industrial valves and pipeline components to international markets. Our products are widely used in energy, petrochemical, water treatment, and industrial fluid systems, providing reliable quality and long service life.