Divert Valves VARIVENT® W, W_R, W_V & X, X_V

VARIVENT® single-seat divert valves are used for simple divert functions in hygienic applications. The valves are characterized by their ease of operation and flexibility. The individual variants are designed for different flow directions.

Function

In single-seat shuttle valves, there is only one seal for each switching position in the valve disc separating the particular pipelines from one another. This means liquid can pass from one pipeline to the other in the eventuality of a seal defect. For this reason, single-seat shut-off valves are not suitable for separating incompatible fluids.

Special Features

  • Certified, hygienic configuration
  • Metallic stop
  • Flexibility because of the modular principle
  • Proven seal geometry

VARIVENT® series

The structure of the VARIVENT® modular system means that different valve configurations (closing direction of the valve disc) and numerous options are available. Please refer to the options section in the catalog for information about these.

Sizes
Single-seat divert valves Long-stroke divert valves
DN 25 – DN 150 DN 65 – DN 100
OD 1″ – OD 6″ OD 2 ½” – OD 4″
IPS 2″ – IPS 6″
Valve Selection Scheme: Divert Valves
Feature Type
Product-merging Modular System Single-seat Valve, Type W
Product-merging With optimized Maintenance,

radial Sealing

Single-seat Valve, Type W_R
Product-merging Long-stroke Valve for Viscous Products or Products with

large Particles

Single-seat Long-stroke Valve,

Type W_V

Product Distribution Modular System Single-seat Valve, Type X
Product Distribution Long-stroke Valve for Viscous Products or Products with

large Particles

Single-seat Long-stroke Valve,

Type X_V

Recommended Flow Direction

To avoid water hammers when closing one path while the product is flowing, single-seat divert valves should be switched against the flow direction of the product if possible.

The single-seat divert valve type W is used for merging products from two pipelines, whereas valve type X has been designed for product distribution. The valves are characterized by their ease of operation.

Application Examples

In practice, these valves are frequently used in CIP supply and return lines. One typical application is also found at the end of a valve block in which the valves are fitted as divert valves between the process line and the drainage (e.g. during pushing out).

VARIVENT® long-stroke valves are used for manufacturing products with relatively large particles or for viscous products, such as strawberry yoghurt.

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Types W, W_R, W_V & X, X_V

Please refer to the catalog for information.

Technical Data of the Standard Version
Type W Type W_R radial Type W_V (Longstroke) Type X Type X_V
Recommended flow direction Product-merging Product-dividing
Material in contact with the product 1.4404 / AISI 316 L
Material not in contact with the product 1.4301 / AISI 304
Seal material in contact with the product EPDM, FKM, HNBR
Ambient temperature 0 to 45 °C
Air supply pressure 6 bar (87 psi) 6 bar (87 psi) 6.4 bar (93 psi) 6 bar (87 psi) OD 2 ½”– OD 3″ 4.8 bar (70 psi) OD 4″ 6.3 bar (91 psi)
Product pressure 5 bar (73 psi) 5 bar (73 psi) DN 65 – DN 80

OD 2 ½” – OD 3″

10 bar (145 psi) DN 100 OD 4″ 5.2 bar (75 psi)

5 bar (73 psi) OD 2 ½”– OD 3″ 5 bar (73 psi) OD 4″ 5.2 bar (75 psi)
Surface in contact with the product DN, OD

Ra ≤ 0.8 μm

IPS

Ra ≤ 1.2 µm

Ra ≤ 0.8 µm Ra ≤ 0.8 µm DN, OD

Ra ≤ 0.8 μm

IPS

Ra ≤ 1.2 µm

Ra ≤ 0.8 µm
External housing surface Matte blasted
Control and feedback system Connection 0 (without control top)
Actuator type Pneumatic actuator air / spring
Connection fittings Welding end
Identification Adhesive ID tag
Valve seat version Clamped seat ring or fixed vertical port Welded seat ring Clamped seat ring or fixed vertical port Clamped seat ring
Certificates A3, CE

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