Rotary Unions offer 3 or 6 flow passages.

Press Release Summary:

Available with flow passage options ranging from ¾-1 ½ in., HVH Series features heavy-duty alloy steel construction with corrosion-resistant Nitride surface treatment and protected ball bearing design suitable for harsh/outdoor environments. Units have max pressure rating of 5,000 psi and are available with electrical slip ring options for power or data transfer.

Original Press Release:

DSTI Introduces High Flow Volume Rotary Unions

MINNEAPOLIS, Minn. - DSTI announced the introduction of an entirely new line of rotary unions (HVH series) developed to serve the needs of customers that require high flow volume with larger flow passages.

Initial stock designs are available with 3 or 6 flow passages, with passages options ranging from 3/4" to 1 1/2" diameter. Custom versions are also available as special orders.

HVH Features:

o Protected ball bearing design suitable for harsh/outdoor environments

o Heavy duty alloy steel construction

o Corrosion resistant Nitride surface treatment standard

o 5000 psi max pressure rating

o Available with electrical slip ring options for power or date transfer

About DSTI --

Dynamic Sealing Technologies, Inc. (DSTI) specializes in the design, manufacture and integration of rotary unions and rotating joints worldwide. DSTI's rotary unions are used to distribute a variety of fluids from a stationary inlet to rotating equipment. The company offers a full line of standard products for a wide variety of applications, as well as complete, specialized rotary union design and manufacturing services.

For more information, please call 763.786.3758 or email, or visit

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