The DT4 is designed specifically for tank outlets, using mix-proof double-seat technology to ensure hygienic discharge and prevent cross-contamination during product or CIP transitions.
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DT4 Series: Tank Outlet
The DT4 tank outlet mix proof valve is used for the reliable separation between the tank and servicing pipeline. The DT4 tank outlet is an extension to the D4 Series mix proof family which helps fulfil today’s customer demands for production flexibility, increased productivity, rapid return on investment (ROI) and improved product quality in the food and drink, dairy, personal care and brewing process industries.
Tank Outlet Double Seat Mixproof Valves
Key Features & Benefits:
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High value, Low life cycle costs:
- “All-In” standard features such as seat lift actuator and cross-port housing provide exceptional value
- Reduced inventory costs with same seal kit used on multiple size ranges: DN40-DN65 (1.5”-3.0”) and DN80-DN100 (4.0”)
- Low air consumption and air supply requirements
- Leak drain with clamp connection for CIP fluid collection
- Long housing ports ease manifold building
- Integrated shaft seal flush reduces need for external piping
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Reliable performance:
- Tank side holding pressure greater than 5 bar (73 PSI)
- Long stroke for gentle product handling (ex: particulates) and low flow resistance
- Balanced design helps to prevent hydraulic blocking and enables flexible flow direction without slamming
- Heavy-duty bolted flange connection between tank/housing/insert provides secure, controlled assembly/disassembly of valve insert
- No compressed air needed for removal and servicing
- Range of control units and bus communication for automated operation
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Cleanability:
- Designed to the latest global hygienic standards
- Cavity spray cleaning as standard
- Radial seal design provides minimal switching leakage
- Extensive cleaning of product contact seals
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Theory of Operation: Mixproof Valves
Double seat mix proof valves are used to safely process two different fluids efficiently (typically product and CIP) through the valve simultaneously. The DT4 mix proof design has two independently operating seats that separate the tank and pipeline when the valve is in the fail-safe closed position. The atmospheric vent cavity between the seats creates a path to exit through the leakage chamber should the seals fail, as well as a drain for CIP solution during seat cleaning. External CIP spray flush connections are included to provide enhanced cleaning of the leakage vent cavity as well as the lower shaft, while the valve is closed or open during production.
DT4 Tank Outlet Overview
This video explains how the double-seat technology ensures safe product separation, reliable CIP performance, and efficient operation in sanitary processing systems.
Frequently Asked Questions
Yes. The DT4 is fully CIP-capable and allows for automated cleaning of internal components without valve disassembly, improving sanitation and reducing downtime.
With its optimized geometry and high drainability, the DT4 minimizes hold-up volume, enabling efficient product recovery while maintaining strict hygienic standards.
