Hammer Union Seals & Repair Kits

About this collection

Hammer union seal kits for oilfield flowline, pressure pumping and well service applications. Available for FIG 1502, FIG 602 / 1502, FIG 602 / 1002 / 1502 and FIG 206 hammer union connections.

Material options include Buna-N / NBR, HSN / HNBR and FKM compounds, with brass or stainless steel anti-extrusion ring options available for selected sizes.

Standard sizes include 1", 1-1/2", 2", 3", 4" and 7". Bulk orders, custom materials and private-label packaging can be quoted upon request.

Read the Hammer Union Seal Identification Guide before confirming the connection, size and repair requirement.

Need confirmation before ordering? Request a Quote with the equipment reference, required quantity and application details.

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Hammer union seals and repair kits for oilfield flowline equipment

8 products

How to Select a Hammer Union Seal

High-pressure wing unions commonly use a replaceable lip-type seal ring in the female sub. Correct identification is essential because nominal size alone is not enough to confirm compatibility.

Selection checklist

  • Confirm nominal union size and figure number, including FIG 602, 1002, 1502, 1505 or other specified design.
  • Match the seal profile and anti-extrusion-ring construction to the female sub.
  • Choose NBR, HNBR, FKM or another verified compound for the actual fluid, gas and temperature.
  • Check standard-service or sour-service requirements and the equipment manufacturer’s maintenance instructions.

Typical applications

Used in flowline and well-service connections for pressure pumping, fracturing, cementing, acidizing, testing and related temporary piping systems when the matching union design calls for this seal style.

The seal or repair kit does not determine the pressure rating of the complete assembly. Confirm the equipment model, figure, connection, working pressure, temperature and service fluid before ordering or installation.

Frequently asked questions

Can seals for FIG 602, 1002 and 1502 be selected by size alone?

No. Figure, nominal size, seal profile and union geometry must all match. Similar outside dimensions do not prove interchangeability.

When should a stainless steel anti-extrusion ring be considered?

It is commonly considered where the specified design and service environment require greater corrosion resistance. The equipment specification and actual media must govern the final choice.

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