JIS Resilient Seated Gate Valve

Overview of JIS Flanged Cast Iron Gate Valves

JIS flanged cast iron gate valves are valves that comply with Japanese Industrial Standards (JIS), with the main body material being cast iron (such as gray cast iron), and they are connected to pipelines through flanges. Their core function is to cut off or connect the medium in the pipeline, and they are suitable for water media, especially widely used in water supply and drainage systems. Pressure rating: JIS 10K (general)

Main features:

- Low fluid resistance: Straight-through flow channel design, the medium flow direction remains unchanged, and pressure loss is low.

- Bidirectional flow: The medium can pass through from any direction, offering high installation flexibility. 

Easy to open and close: dark rod structure or bright rod design. 

Pressure resistance range: The standard pressure rating is JIS 10K (approximately 1.37 MPa), suitable for medium and low-pressure scenarios. 

Detailed Explanation of Flange Materials

The flange material of the Japanese standard cast iron gate valve must match the valve body. The cast iron flange material type: gray cast iron. Applicable scenarios: Conventional industrial systems (water), working temperature ≤ 50℃. o

 Valve Structure and Materials

- Body/Cover: Cast iron .

- Stem: Brass (standard) or stainless steel (for high corrosion resistance requirements).

- Seals: The disc is made of EPDM and the seat is made of cast iron, which is wear-resistant and has good sealing performance.

- Packing: Flexible graphite or PTFE to ensure zero leakage at the stem.