Double-seat valves

VARIVENT® Mixproof shut-off valves, piggable

A special feature of this valve is that the pig can be conveyed through the cylindrical design of the housing. Pigging technology enables valuable products to be recovered at the end of the process step, thereby minimizing product residues in the pipe.

Technical data

VARIVENT® LPlease refer to the catalog for more information.
Technical Data of the Standard Version
Type L_H,
Piggable Upside Down
Type L_S,
Piggable Upright
Material in contact with the product1.4404 / AISI 316 L
Material not in contact with the product1.4301 / AISI 304
Seal material in contact with the productEPDM, FKM, HNBR
Ambient temperature0 to 45 °C
Air supply pressure6 bar (87 psi)
Product pressure5 bar (73 psi)
Surface in contact with the productRa ≤ 0.8 μm
External housing surfaceMatte blasted
Control and feedback systemConnection 0 (without control top)
Actuator typePneumatic actuator air / spring
Connection fittingsWelding end
IdentificationAdhesive ID tag
Valve seat versionWelded seat ring
Certificates3-A, CE

DN 40 - DN 100

OD 1,5" - OD 4"

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