Expansion Compensator VARICOMP®

The innovative VARICOMP® Expansion Compensator is used for compensating expansions and tensions in pipe systems resulting from temperature differences. Due to its exceptional construction principle, it is additionally suitable for aseptic process applications. The decisive advantage of the VARICOMP® Expansion Compensator is the pocket-free design with drain characteristics – an indispensable feature for optimal cleaning in the CIP/SIP method.

Special Features

  • Suitable for hygienic and aseptic applications
  • EHEDG certified
  • Pocket-free design
  • CIP / SIP-able
  • Short, compact design
  • Compensation element available in EPDM and FKM
  • Compensation distance (tension / compression) limited by metallic stop
  • Max. compensation distance 8mm
  • Compensation element with integral vulcanized support rings for high pressure loads

Technical Features

  • Gap-free sealing
  • Pipe-flush, even passage
  • Flange used to fixate the compensation element
  • Snap ring for force application (seal)
  • Metallic stop (defined sealing pressure, no excessive strain on the compensation element)
  • Fixation of the compensation element at the outer ring
  • Defined compensation distance due to metallic stop (tension /compression) at the outer ring, no excessive strain on the compensation element
  • Additional sealing to the atmosphere provided by O-rings


VARICOMP® Expansion Compensators are used to compensate for thermal stress in pipe systems resulting from thermal expansion. They are especially suitable for valve matrices and fixed process pipe systems. They are ideally suited to hygienic and aseptic process operations. Applications include the dairy, beverage and food industries as well as the pharmaceutical, fine chemical, biotechnological and cosmetic industries. They can also be used as an alternative for Ω-elbows.

The Compensation Element

The compensation element is the main element of the compensator. It absorbs the stress and compensates it.

Technical Features of the Compensation Element

  • Compression molded compensation element made of elastomer (EPDM and FKM available)
  • Integral vulcanized support rings of stainless steel, used against pressure loads (overpressure and vacuum)
  • Integral vulcanized support ring of stainless steel used for fixating the compensation element
  • Smooth inside surface


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Expansion Compensator

Please refer to the catalog for more information.

Technical Data of the Standard Version
Material in contact with the product 1.4404
Material not in contact with the product 1.4301
Seal material in contact with the product EPDM (FDA), FKM (FDA)
Max. product pressure 16 bar (232 psi)

From DN80 / OD 3” 10 bar (145 psi)

Surface in contact with the product Ra ≤ 0,8 μm
Connection fittings VARIVENT® flange
Valve seat version Fixed vertical port
Certificates EHEDG, FDA


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