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MUELLER STEAM SPECIALTY 6 in Cast Iron Double-Door Wafer Check Valve - Cast Iron Double-Door Wafer Check Valves
MUELLER STEAM SPECIALTYCast Iron Double-Door Wafer Check Valves

MUELLER STEAM SPECIALTY 6 in Cast Iron Double-Door Wafer Check Valve

The MUELLER STEAM SPECIALTY Double Disc Check Valve is a cast iron double-door wafer check valve with a 6 in pipe size and an inline valve body, Std type (MPN 6 71AHB3H).

SKU 3G-OTH-431321

Also listed as: 671AHB3H · 6-71AHB3H

Brand
MUELLER STEAM SPECIALTY
Item
6 in Cast Iron Double-Door Wafer Check Valve
Part Number
6 71AHB3H
Category
Cast Iron Double-Door Wafer Check Valves
Available to Order
Also known as:6 71AHB3HMUELLER STEAM SPECIALTY
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
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Technical Specifications

MUELLER STEAM SPECIALTY
Manufacturer Part Number
6 71AHB3H
Type
Inline Valve Body, Std
Pipe Size
6 in

Technical Documents

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MUELLER STEAM SPECIALTY Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The MUELLER STEAM SPECIALTY Double Disc Check Valve is a cast iron double-door wafer check valve with a 6 in pipe size and an inline valve body, Std type (MPN 6 71AHB3H).

Frequently Asked Questions

What is a MUELLER STEAM SPECIALTY Double Disc Check Valve used for?

This double disc check valve prevents backflow in piping systems handling steam, water, or other non-corrosive fluids. It is commonly installed in industrial steam, boiler feed, and process lines where reliable flow reversal protection is required.

What are the specifications of the MUELLER STEAM SPECIALTY 6 71AHB3H check valve?

This MUELLER STEAM SPECIALTY double disc check valve has a 6 in pipe size, inline cast iron body, and double-door wafer design. The manufacturer part number is 6 71AHB3H. It is a standard type valve suitable for moderate-pressure steam and fluid applications.

Where to buy MUELLER STEAM SPECIALTY check valves worldwide?

3G Electric supplies MUELLER STEAM SPECIALTY double disc check valves worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on the 6 71AHB3H model.

How to install a MUELLER STEAM SPECIALTY double disc check valve?

Install the valve between flanges with the flow arrow aligned to pipeline direction. Ensure gaskets are seated properly and bolts are torqued evenly to avoid body distortion. The double disc design allows compact inline placement without additional support.

Used in

Common applications for MUELLER STEAM SPECIALTY
Steam distribution systems — Carbon steel Y strainer (e.g., 2 1/2 in flanged, 304 SS screen) removes debris to protect steam traps and control valves.
Fuel oil handling — Stainless steel basket strainer (3/4 in NPT, 304 SS screen, fluoroelastomer gasket) filters fuel oil to safeguard burners and pumps.
Condensate return lines — Cast iron double-door wafer check valve (2 1/2 in to 8 in) prevents backflow and reduces water hammer in condensate piping.
Process water piping — Cast iron double-door wafer check valve (inline body, standard trim) maintains unidirectional flow in water systems.
General industrial fluid lines — Y strainers and basket strainers in carbon steel or stainless steel remove particulate matter from non-corrosive fluids.
Pump discharge protection — Double-door wafer check valve (cast iron, wafer style) installed between flanges to prevent reverse flow and protect pumps.
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MUELLER STEAM SPECIALTY Products

3G Electric supplies MUELLER STEAM SPECIALTY cast iron double-door wafer check valves. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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