MILWAUKEE VALVE 1804 - 400 Silent Check Valve, Globe Style, Cast Iron, 4 Inch Valve Size

Milwaukee Valve 1804 - 400 silent globe style check valve prevents the reverse flow of fluids automatically in wastewater treatment, reservoir & sump disposal pipelines.

Working Mechanism:

• When the flow of water starts in the attached pipeline, it forces the valve disc to open for free flow across the area equal to the pipe size.
• When water flow stops in the system, the valve spring closes the valve disc before any reverse flow occurs.

Features:

• Milwaukee Valve 1804 - 400 silent globe style check valve has a flange connection to connect to 4-inch pipelines.
• It has a cast iron body for structural strength and stainless steel seat & disc to prevent corrosion.
• This 1800 Series silent globe check valve can withstand temperatures up to 200 degrees F and pressures up to 200 psi.

Standards and Approvals:

• ANSI B16.1
• ASTM A-126
• MSS SP-125
• NSF 372

Frequently Asked Questions:

Q. How is this Milwaukee Valve 1804 - 400 silent globe style check valve connected to pipelines?

A. This silent globe check valve mates to flat-faced steel flanges before installing inline in a system. It can be installed in both horizontal & vertical orientation with flow direction according to the flow arrow in the system.

Q. How is this Milwaukee Valve 1804 - 400 silent globe style check valve installed?

A.

• Clean the piping system thoroughly before valve installation.
• Remove valve end caps & any packaging from the valve and inspect the valve ports & seating surfaces.
• Provide support to the valve to prevent unwanted stresses. The valve should be in a location with an adequate straight pipe from equipment to prevent vibrations.
• Use full face gaskets & centre them to prevent internal valve leakage.
• Bolt the flange inline as per applicable recommendations using full face gaskets.
• Verify the tightness & proper installation of the valve.

Q. What are the steps for inspection of this silent globe check valve?

A.

• Close the discharge isolation valve and then bleed the system pressure fully using the discharge side flange's loosening to prevent damage to internal parts.
• The valve should be checked for wear & tear after removal from the line.
• Do not remove the inlet side piping to inspect the valve's seating for preventing damage.