ANSI Class 300 Flanged Swing Check Valve | SS304 / SS316 Stainless Steel | DN40-DN600 | Dual Plate Check Valve

Product Overview

The ANSI Class 300 Flanged Swing Check Valve is a high-performance, automatic backflow prevention device designed for reliable one-way flow control in water, май, газ, жана өнөр жай түтүк системалары. Featuring a stainless steel (SS304 / SS316) body and a swing-type disc mechanism, this valve allows forward flow to open the disc and automatically closes when flow reverses or stops, preventing backflow and protecting pumps, compressors, and other equipment from damage. The flanged ends conform to ANSI Class 300, JIS, and PN standards, ensuring compatibility with international piping systems. Available in sizes from DN40 to DN600 (1.5″ to 24″) with multiple material options — including WCB carbon steel, дат баспаган болот (SS304/SS316), and alloy steel — this valve is suitable for a wide range of industrial applications. With ISO, EAC, WRAS, and CE certifications, it meets global quality and safety standards. The valve is available with manual, worm gear, pneumatic, hydraulic, or electric actuation options.

ANSI Class 300 Flanged Swing Check Valve

Technical Specifications

ANSI Class 300 Flanged Swing Check Valve

Key Features

• Premium Stainless Steel Construction
• Swing Check / Dual Plate Design
• Multiple Pressure Ratings – ANSI / JIS / PN
• Flanged Connection – ANSI B16.5 / JIS / IN
• Wide Material Selection
• Multiple Actuation Options
• OEM / ODM / OBM Customization Support

Тиркемелер

• Суу менен камсыздоо системалары
• Fire Protection Systems
• Май & Gas Pipelines
• HVAC системалары
• Химиялык & Petrochemical Processing

ANSI Class 300 Flanged Swing Check Valve

FAQ

Q1: What is the difference between a swing check valve and a dual-plate check valve?

А: Swing check valves feature a single-disc hinged design; they are suitable for medium-to-large bore sizes, offering high flow capacity and low pressure drop, though their closing speed is relatively slow. Dual-plate check valves utilize two spring-assisted discs, resulting in faster response times, shorter installation lengths, and lighter weight; they are ideal for larger sizes and space-constrained applications.

Q2: Which pressure standards does this valve meet?

А: This valve is available in various pressure ratings, including ANSI Class 150–900, JIS 10–20K, and PN 1.0–32.0 MPa. The standard model is ANSI Class 300. Please specify your required pressure rating when placing an order.

Q3: Can the valve body be upgraded to SS316L or alloy steel?

А: Ооба. We offer material upgrade options such as SS316L, duplex stainless steel, and alloy steel, suitable for highly corrosive media, high-temperature/high-pressure environments, or special operating conditions. Please specify your requirements when placing an order.

Q4: What is the difference between EPDM and PTFE sealing materials?

А: EPDM (Ethylene Propylene Diene Monomer) is suitable for water and mild chemicals, with a temperature range of -20°C to +120°C and excellent sealing performance. PTFE (Polytetrafluoroethylene) offers superior chemical resistance and a wider temperature range (up to +230°C), making it suitable for corrosive media and high-temperature applications.

Q5: Can third-party inspection reports be provided?

А: Ооба. We can provide material testing reports, pressure test reports, and non-destructive testing (NDT) reports issued by third-party inspection agencies. Please specify this requirement when requesting a quote.

ANSI Class 300 Flanged Swing Check Valve

Таңгактоо жана жөнөтүү

Packing depends on the product type and quantity. Options include bundle packing, wooden crates, or boxes with proper protection for flange faces. Shipment can be arranged by sea, темир жол, аба, or as per customer’s request.

Компаниянын профили

LUOYANG DATANG ENERGY TECH CO., LTD is a professional industrial valve supplier, dedicated to providing reliable flow control solutions for fire protection, HVAC, суу менен дарылоо, and industrial piping systems worldwide. All products are manufactured to international standards with UL/FM, CE, жана ISO 9001 certifications. With over 10 years of experience, a modern facility of 80,000 m², жана 200+ professional employees, we serve customers in 10+ countries with quality products, competitive pricing, and reliable delivery.

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ANSI Class 300 Flanged Swing Check Valve