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MUELLER STEAM SPECIALTY Cast Iron Double-Door Wafer Check Valve, 2 1/2 in - Cast Iron Double-Door Wafer Check Valves
MUELLER STEAM SPECIALTYCast Iron Double-Door Wafer Check Valves

MUELLER STEAM SPECIALTY Cast Iron Double-Door Wafer Check Valve, 2 1/2 in

The MUELLER STEAM SPECIALTY Double Disc Check Valve is a cast iron double-door wafer check valve with an inline valve body and a 2 1/2 in pipe size (MPN 21/2 71AHB3H).

SKU 3G-OTH-431309

Also listed as: 21271AHB3H · 21 2 71AHB3H · 21-2-71AHB3H

Brand
MUELLER STEAM SPECIALTY
Item
Cast Iron Double-Door Wafer Check Valve, 2 1/2 in
Part Number
21/2 71AHB3H
Category
Cast Iron Double-Door Wafer Check Valves
Available to Order
Also known as:21/2 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
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.

Technical Specifications

MUELLER STEAM SPECIALTY
Manufacturer Part Number
21/2 71AHB3H
Type
Inline Valve Body
Pipe Size
2 1/2 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 an inline valve body and a 2 1/2 in pipe size (MPN 21/2 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 used in industrial steam, HVAC, and process applications where reliable flow control and minimal pressure drop are required.

What are the specifications of the MUELLER STEAM SPECIALTY Double Disc Check Valve?

This valve is a cast iron double-door wafer check valve with a 2 1/2 inch pipe size and an inline valve body. The manufacturer part number is 21/2 71AHB3H. It is designed for horizontal or vertical installation and handles steam and water service.

Where to buy MUELLER STEAM SPECIALTY Double Disc Check Valve worldwide?

3G Electric supplies this MUELLER STEAM SPECIALTY double disc check valve worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install a MUELLER STEAM SPECIALTY Double Disc Check Valve?

Install this valve between flanges with the flow arrow aligned to pipeline flow. Ensure gaskets are properly seated and bolts are torqued evenly. For vertical lines, confirm the disc hinge orientation allows free movement. Follow standard piping best practices for steam or water service.

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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