Double-seat Valves
Mixproof Shut-off Valves VARIVENT® L, piggable
A special feature of this valve is that one of the valve housings may be pushed out using a pig. This technique allows for the recovery of high quality products at the end of a process step and thus to minimize product residues inside the pipe.
A special feature of this valve is that one of the valve housings may be pushed out using a pig. This technique allows for the recovery of high quality products at the end of a process step and thus to minimize product residues inside the pipe.
VARIVENT® L
Please refer to the catalog for more information.
| Type L_H,
Piggable Upside Down | Type L_S,
Piggable Upright | |
| 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) | |
| Product pressure | 5 bar (73 psi) | |
| Surface in contact with the product | 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 | Welded seat ring | |
| Certificates | 3-A, CE | |
DN 40 - DN 100
OD 1,5" - OD 4"
VARIVENT® mixproof valves type C and K are used as an efficient alternative for mixproof separation of incompatible products at pipeline junctions within CIP systems or gas blocks.
VARIVENT® double-seat valves are used for mixproof shut-off of incompatible products at the pipe junctions.
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