315 PVC Pipe Vacuum Sizing Tank

315 PVC Pipe Vacuum Sizing Tank for Large-Diameter OD Stability and High-Gloss Finish

Engineered specifically for 315 mm PVC/uPVC production, this large-format vacuum sizing tank locks outer diameter and roundness immediately downstream of the die. With segmented high-capacity vacuum chambers, mirror-finish calibration sleeves, and a uniform laminar cooling system, it achieves tight tolerances and cosmetic-grade gloss at industrial line speeds—ideal for municipal water, drainage, conduit, and heavy-duty utility applications.

Product Features

Large-Diameter, PVC-Tuned Advantages

High-rigidity tank architecture: reinforced stainless-steel body and frame maintain alignment under the weight and buoyancy of 315 mm pipes, protecting OD consistency across long runs.
Segmented high-volume vacuum zones: independently regulated chambers deliver stable negative pressure along the full tank length, preventing ovalization on thick-wall sections.
Mirror-finish calibration sleeves: chrome-treated or ultra-polished stainless bores minimize friction and surface imprinting, preserving gloss on rigid PVC/uPVC.
Laminar cooling hydraulics: wide-span water curtains and balanced spray manifolds ensure low-turbulence heat extraction, reducing haze and water marks at large diameters.
PID vacuum control with buffering: digital setpoints and vacuum reservoirs dampen pressure oscillations during ramp-up, stop/start, and recipe transitions.
Clean-in-place maintenance: sloped base, quick-drain ports, inline filtration, and accessible service doors keep the circuit clean and reduce downtime.

Materials & Process Highlights

Material focus: rigid PVC/uPVC, CPVC; compatible with co-extrusion stripes and multilayer constructions at 315 mm OD.
Thermal profile for large OD: staged cooling and optional pre-cool sections mitigate internal stress and whitening on thick-wall products.
Surface fidelity: controlled flow kinematics and sleeve geometry reduce micro-scratches and melt imprint, supporting cosmetic-grade finishes on visible pipelines.

Application Areas

Building & Infrastructure

Municipal water supply lines, gravity drainage/sewer, stormwater pipes, electrical conduit/casing, and telecom ducts in civil works.

Furniture & Interior

Large decorative conduits and cable routing tubes for commercial interiors where clean OD and uniform gloss are required.

Automotive & Mobility

Oversized utility conduits and protective sleeves for EV/ICE plant utilities and test facilities needing stable dimensions.

Industrial & Utilities

Process fluid transport, utility sleeves, industrial ducting, and OEM specialty PVC pipes requiring tight OD control at 315 mm.

Technical Specifications

Capacity & Performance

Nominal OD: 315 mm PVC/uPVC (customization available for adjacent sizes and wall thicknesses).
Line speed range: typically 0.5–15 m/min depending on wall thickness, cooling layout, and tolerance targets.
Dimensional stability: supports industry-standard OD and roundness tolerances when paired with calibrated 315 mm sleeves and proper vacuum zoning.

Tank, Vacuum, and Cooling System

Effective tank length: 8–12 m modules for large-diameter stabilization; extendable configurations available.
Vacuum chambers: 3–5 zones with independent setpoints; high-capacity oil-sealed rotary vane or dry pumps, buffer tanks, silencers, and vacuum-level monitoring.
Water circuit: stainless circulation pump, wide-span laminar curtains, adjustable spray manifolds, inline filtration (≥100 μm), and plate/coil heat exchanger for temperature control.

Controls & Integration

PLC/HMI with multi-language UI, digital vacuum readouts, water temperature/flow monitoring, and alarm diagnostics.
Recipe library for wall thickness and material grades; line-speed following via analog/pulse signals to synchronize with extruder, haul-off, and cutter.
Safety: interlocked covers, E‑stop circuits, low-level/overflow protection, and guarded access doors for large-format maintenance.

Energy & Utilities

Electrical load: 5.5–12 kW (pump size, vacuum configuration, and cooling capacity dependent).
Water requirement: closed-loop or single-pass; typical 8–20 m³/h based on tank volume and throughput at 315 mm OD.
Vacuum levels: configurable setpoints optimized for large-diameter PVC stabilization without surface deformation.

User Recognition

Field Results

Municipal pipe producer increased throughput by 18% while maintaining OD CpK after adopting segmented high-volume vacuum zoning and laminar curtains on 315 mm lines.
Industrial utility pipe line reduced start-up scrap and improved roundness stability by using PID-managed vacuum and mirror-finish sleeves, cutting rework by 30%.

Customer Feedback

Operators praise predictable vacuum behavior and straightforward recipe swapping via HMI for different wall classes (PN ratings).
Maintenance teams highlight low corrosion, fast drain/clean cycles, and accessible filtration that reduce downtime on large-diameter operations.

Competitive Advantage

Purpose-built mechanics for 315 mm deliver superior surface quality and dimensional consistency at a compact, modular footprint.
Efficient vacuum and cooling systems lower total cost of ownership through reduced energy consumption and extended component life, strengthening ROI on high-demand civil projects.