Valves Mixproof Double Seat D4 Series SPX FLOW

Name: Valves Mixproof Double Seat D4 Series SPX FLOW
Brand: SPX FLOW
SKU: 8697108118-2396
Availability: InStock

Valves & Piping

SPX FLOW

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Description

Double seat mixproof valve for hygienic applications. Function: Prevent product mixing. Housing combinations: Shut-off types. Port connections: Buttweld (W). Port sizes: DN40–DN150 and tube T15–T60; mixed sizes available. Actuator: Non seat lift (NSL) or seat lift (SL). Control units: CU4, CU4Plus, IECEx CU (ATEX Zone 1), CU4 certified IECEx/ATEX/CCC Zone 2, CU4Plus certified. Solenoid options: 11 (1 solenoid, not with SL), 33 (3 solenoids), 0 (no solenoid). Communication: direct connect 24V DC, AS-i, IO-link. Actuator connectors: 6 mm air fittings, electrical: cable gland, 12-pin M12, 4-pin M12, 5-pin M12, 8-pin M12. Environmental: ATEX Zone 1, Zone 2. Seat type: TR – elastomeric profile seal. Seal materials: EPDM, FPM, HNBR. Surface finish: 11 – 0.8 μm (32 μ-in) Ra ID. Options: A0 none, A3 hazardous, A1S 3.1 cert, C1 shaft flush. Certifications: 3-A authorized.

Possible Applications

The D4 series mixproof valve is engineered for critical process lines in the dairy, beverage, and pharmaceutical industries where cross-contamination between incompatible fluids must be strictly prevented. By utilizing a double seat design with a leakage chamber, the valve allows for the simultaneous processing of different products or cleaning media through adjacent lines without the risk of intermixing. It is commonly integrated into automated clean-in-place systems and manifold distribution panels where high-speed switching and hygienic integrity are required. The availability of seat lift actuators makes this valve particularly effective for cleaning the seal faces during production cycles, ensuring that sterility is maintained throughout complex piping networks without requiring manual disassembly.

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