What Is a Flange Valve?

Flange gate valves are flanged gate valves. This connection method is the most common. The flange gate valve is stable and reliable when used in pipelines, so flange gate valves are often used on high-pressure pipelines.

Flanged gate valve

The flange gate valve is connected as

English name; the flap of the flape gate valve is a shutter,

high pressure

Light weight: the body is made of high-grade nodular cast iron (nodular cast iron), which is more traditional

1,

1. Check the valve cavity, sealing surface and other parts before installation. No dirt or sand particles are allowed to attach.

Test pressure (MPa)

Nominal pressure (MPa)

Pressure Class

JIS (MPa): 1.6, 2.5, 4.0, 6.4, 10.0, 150, 300, 400, 600, 900, 10K, 20K

Strength test: 2.4, 3.8, 6.0, 9.6, 15.0, 3.1, 7.8, 10.2, 15.3, 23.1, 3.1, 7.8

Seal test: 1.8, 2.8, 4.0, 7.0, 11.0, 2.1, 5.6, 7.5, 11.2, 16.8, 2.1, 5.6,

Airtight test: 0.5 0.7

Working temperature: PTFE150 PPL300 Carbon fiber350

Applicable medium: C: water, oil, steam P: nitric acid (temperature 200 ° C) R: acetic acid (temperature 200 ° C)

Design Parameters:

Design and manufacture: GB / T12237-2007

Flange connection: JB / T79-94, GB9113-2000

Structure length: GB12221-2005

Nominal diameter: DN15 ~ DN150mm

Nominal pressure: PN1.6, 2.5, 4.0MP.