We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Bronze union kit with two gaskets for half-inch sweat connection

Armstrong Pumps

Armstrong Pumps LF 1/2" Sweat Union Hardware Kit 150

SKU CH-H0QV-XAFEZ

Lead-free bronze union kit with two EPDM gaskets fits Armstrong Astro 220SSU and 225SSU circulating pumps for potable water systems

  • Main materialHAWA
  • Lead-free bronze for potable water systems
  • Includes two EPDM gaskets for reliable sealing
  • 1/2 inch sweat union fits ASTRO 220SSU and 225SSU pumps
  • Bronze union material resists corrosion
  • Hardware kit rated for 150 psi operation

Armstrong LF 1/2" Sweat Union Kit

This Armstrong Pumps hardware kit provides two lead-free bronze sweat unions sized for 1/2 inch copper piping. It is designed for installers connecting Armstrong ASTRO 220SSU or 225SSU in-line circulating pumps in potable water systems. The package includes two EPDM gaskets for a complete seal.

Upgrading from standard bronze unions

The lead-free bronze construction replaces older bronze fittings that do not meet current low-lead requirements for drinking water. The jump is worth it when local codes mandate lead-free materials or when servicing an ASTRO 220SSU or 225SSU pump with corroded or leaking sweat connections.

Sweat connection and pressure limits

Sweat joints require proper soldering technique and clean copper tube ends to hold pressure reliably. The EPDM gaskets handle typical hot water temperatures but are not rated for steam service. The kit is restricted to the listed Armstrong pump models and 1/2 inch nominal pipe size.

How it compares

Measured against everything we stock in Pumps, Sprayers & Pump Accessories, at today’s prices. Recalculated every night.

Price $43.99
Typical for this category: the median of 962 items is $38.99.

Specifications

Product
Brand nameARMSTRONG PUMPS INC.
Size & build
Main materialHAWA

Questions about this item

Will the 1/2 inch sweat union kit fit my Armstrong ASTRO 220SSU pump?

Yes, this kit is compatible with Armstrong ASTRO 220SSU and ASTRO 225SSU in-line circulating pumps for direct sweat connection.

What is the correct way to sweat these bronze unions without damaging the EPDM gaskets?

Remove the EPDM gaskets before applying heat to the bronze unions; reinstall gaskets only after the joints have cooled completely.

When should I replace the EPDM gaskets included in this hardware kit?

Replace the EPDM gaskets whenever the union is disassembled for service or if you notice weeping at the joint during system operation.

More in Pumps, Sprayers & Pump Accessories

Similar items