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TACO 110-556 Bronze Union, 1/2 in Sweat, EPDM Gasket - Unions
TACOUnions

TACO 110-556 Bronze Union, 1/2 in Sweat, EPDM Gasket

The TACO Union: 1/2 in is a bronze union with a 1/2 in sweat connection, designed for use with the TACO 006-BC7-IFC circulator model. It includes an EPDM gasket and is identified by manufacturer part number 110-556.

SKU 3G-OTH-81449

Also listed as: 110556 · 110 556

Brand
TACO
Item
110-556 Bronze Union, 1/2 in Sweat, EPDM Gasket
Part Number
110-556
Category
Unions
Available to Order
Also known as:110-556TACO
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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

TACO
Manufacturer Part Number
110-556
Type
110-556, Compatible with Part No. 33HM88/4JB21, Union
Sweat
1/2 in
Includes
Gasket
Body Material
Bronze
Gasket Material
EPDM
Compatible with Manufacturer Model Number
006-BC7-IFC

Technical Documents

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TACO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The TACO Union: 1/2 in is a bronze union with a 1/2 in sweat connection, designed for use with the TACO 006-BC7-IFC circulator model. It includes an EPDM gasket and is identified by manufacturer part number 110-556.

Frequently Asked Questions

What is the TACO 110-556 union used for?

The TACO 110-556 union is used to connect and disconnect piping in hydronic heating systems, specifically for joining a 1/2 in sweat line to a TACO 006-BC7-IFC circulator pump. Its bronze body and EPDM gasket provide a reliable, leak-resistant seal in residential and commercial HVAC applications.

What are the specifications of the TACO 110-556 union?

The TACO 110-556 union has a 1/2 in sweat connection, a bronze body, and an EPDM gasket. It is compatible with the TACO 006-BC7-IFC circulator model and part numbers 003-BC4-PNP and 006-BC7-IFC. The union includes a gasket and is identified by manufacturer part number 110-556.

Where to buy the TACO 110-556 union worldwide?

You can source the TACO 110-556 union through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine TACO components for hydronic systems.

How to install the TACO 110-556 union?

To install the TACO 110-556 union, ensure the 1/2 in sweat ends are clean and fluxed. Solder the union onto the copper pipe, then tighten the union nut by hand plus a quarter turn with a wrench. Use the included EPDM gasket for sealing. Always follow local plumbing codes and the TACO 006-BC7-IFC manual.

Used in

Common applications for TACO
Hydronic heating systems — Taco 49-150T-2 inline air separator removes entrained air to maintain loop efficiency.
Domestic hot water recirculation — Taco HLS-1 under-sink pump reduces wait time at fixtures in residential buildings.
Chilled water cooling loops — Taco SFL-150S isolation flange allows equipment service without system drain.
Circulator pump maintenance — Taco 110-009RP motor coupler restores torque transfer in Series 110 pumps.
Water/glycol systems — Taco 49-200T-2 air separator handles 2 in NPT connections at 150 psi and 240°F.
Commercial hydronic balancing — Taco air separators and isolation flanges support efficient fluid control and serviceability.
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TACO Products

3G Electric supplies TACO unions. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
Union NPT/Dudgeon 1/4-1/8
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Union NPT/Dudgeon 1/4-1/8
1/2" double dudgeon union
DSZH
1/2" double dudgeon union
Double dudgeon union 1/4"
DSZH
Double dudgeon union 1/4"
Dudgeon/NPT union 3/8-3/8
DSZH
Dudgeon/NPT union 3/8-3/8
Dudgeon/NPT union 1/2-3/8
DSZH
Dudgeon/NPT union 1/2-3/8

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