Unions

Sure Seal O-Ring Unions

HART Industrial Unions is a manufacturer of precision high pressure flat faced O-ring unions. We now can offer our customers with the option of having the union nut slightly modified to easily add wire tags, custom identifications and warnings. This addition to our product offering will help our customers simplify their assembly process, clearly mark unions for quality or maintenance inspections,...

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Orifice Unions regulate process flow.

Orifice Unions regulate process flow.

SMA Orifice Unions are available for pipe sizes from Â-¼ to 2 in. and offer 316L stainless steel orifice plates with drilled holes from 1/64 to 1 in. Various orifice plates are offered for regulation of specific pressure drop and low pressure blanking applications. Suitable for 3,000 and 6,000 psi systems, they provide 45Â-

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Water Unions feature widely spaced ball bearings.

Water Unions feature widely spaced ball bearings.

6000 Series Water Unions feature cartridge seal that allows on-machine replacement with no need to remove hose connections or use special tools. Repair can be conducted by removing 6 hex bolts and end cap, removing cartridge seal and rotor seal face, and replacing. Unions have balanced mechanical seal with carbon against tungsten carbide seal faces for reduced friction and wear. Widely spaced...

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