ASTM A395 Swing Check Valve, NACE MR0175, 1 IN, NPT

Key Specifications / Features

The Ductile Iron ASTM A395 Swing Check Valve, designed for oilfield applications, features a full port design with a 4-inch (DN100) size and a 2000 PSI pressure rating. It meets NACE MR0175 requirements, ensuring resistance to sulfide stress cracking in harsh environments. With NPT threaded connections, this valve ensures reliable performance in high-pressure oilfield systems.

This top-entry swing check valve is offered in ductile iron, carbon steel, and aluminum bronze, covering sizes from 1 inch to 4 inch. Equipped with standard stainless steel discs, it delivers exceptional durability and reliable performance. The check valve design has been optimized to simplify bonnet removal, making maintenance more convenient. Additionally, its patented Hinge-Works feature significantly extends the valve's service life.

Designed for versatility, this valve is ideal for various industrial applications, including hydraulics, pneumatics, pumps, and plumbing. It is particularly effective in oil and gas production lines, where preventing backflow is critical. The swing check design emphasizes simplicity, with easy maintenance facilitated by top-entry access to the internal components. This check valve's primary function is to ensure smooth operation by preventing backflow in pipelines, promoting efficiency and reliability.

Technical Specification

» Size Range: NPS 1–4 Inch (DN25–DN100)
   2 Inch, 3 Inch, 4 Inch: Equipped with a plug on the cap
   1 Inch: Without a plug on the cap
» Pressure Rating: 300–2000 PSI WP
» Body Material: ASTM A395 Ductile Iron
» Disc Material: Stainless Steel SS 304
» Temperature Range: -20°C to 80°C
» Seat and Seal: Viton
» Port: Full Open
» NACE MR-0175: Corrosion resistance for sour gas environments
» Threaded Ends: ANSI B1.20.1 (NPT)
» Inspection and Testing: According to API 598

Main Parts and Materials

Main Dimensions (mm)