There are clear industry standards regarding the selection of cast iron, cast steel, and stainless steel valves based on temperature and media.

As a professional manufacturer, WEITEN Valve offers a wide range of products—including butterfly, ball, gate, check, and globe valves—in cast iron, cast steel, and stainless steel. We match products to specific operating conditions and offer full corporate qualifications, reliable delivery schedules, customization options, and technical support for engineering projects.

1. Cast iron valves have moderate toughness and limited high-temperature resistance; they are typically suitable for ambient-temperature fresh water and municipal sewage, with an operating temperature range of -29°C to 200°C.

2. Cast steel valves offer superior pressure and high-temperature resistance, making them ideal for steam and high-temperature oil pipelines, with an operating temperature range of -29°C to 425°C.

3. Stainless steel valves (grades 304 and 316) feature excellent corrosion resistance, making them suitable for corrosive media such as chemicals, seawater, and weak acids or alkalis, with an operating temperature range of -196°C to 600°C.

Buyers often select valves based solely on price, overlooking media corrosiveness and temperature limits, which can easily lead to long-term issues like rusting and leakage.

When selecting valve materials, one should not focus only on cost; it is crucial to verify three key factors: media corrosiveness, pipeline operating temperature, and system pressure rating. Cast iron can be used for low-temperature fresh water applications to reduce costs; cast steel is preferred for high-temperature steam pipelines; and stainless steel is recommended for chemical and coastal projects.

WEITEN Valve’s supply solutions for various valve materials:

1. Warranty: Standard warranty on core valve body components; preferential pricing on spare parts for wear-and-tear items.

2. Material Range: Production capabilities cover butterfly, ball, gate, check, and globe valves in cast iron, WCB cast steel, and 304/316 stainless steel.

3. Certifications: Holds TSA Class A1 certification; export certifications include CE, ISO9001 quality system certification, WRAS, etc.

4. Delivery: Rapid shipment for standard stock valves; lead times for custom materials are negotiated separately.

For more information on valves, please visit the WEITEN Valve official website at www.weitengroup.com.