Every tank. Fully configured for your application.
Houston PolyTank tanks are engineered and customized as complete application-ready systems, not just storage vessels. From secondary containment and thermal controls to instrumentation, internal components, and structural access, every option and accessory is specification‑matched to our extrusion‑wound PP and HDPE construction. Each is fabricated in accordance with DVS 2205, the most rigorous engineering standard in plastic tank manufacturing.
Whether your application demands regulatory compliance, precise process temperature control, or custom internal flow distribution, Houston PolyTank configures each tank to your exact operational and safety requirements.
Manways & Access Ports
Houston PolyTank manways and access ports are engineered to maintain full tank integrity while providing the safe, reliable access your operation requires for routine inspection, maintenance, and process management.
- Top manways, bolted or threaded, available in multiple diameters
- Side manways for ground‑level access and inspection
- Vents with stainless steel bug screens for safe pressure equalization
Bolted manway with reinforced handle
Side bottled manway davit arm
Bolted manway with red ring and molded handles
Bolted side manway with handles
Fittings and Nozzles
Every fitting and nozzle is custom-located and welded to specification engineered for chemical compatibility, precise process positioning, and long-term performance in PP and HDPE tank walls. This welded construction also supports field repair when needed, allowing fittings and nozzles to be serviced or replaced without sacrificing the integrity of the tank.
- Welded ANSI flanges (150‑lb) with PP‑dipped backing rings 3”- 30”
- HDPE and PP nozzles custom‑located for inlet, outlet, overflow, and process connections
- Threaded NPT or bolted fittings based on application and chemical compatibility
- 304SS, 316SS, Hastelloy C Hardware
Welded 150 lb ANSI flange with polypropylene encapsulated backing ring for secure process connections.
Instrumentation
Houston Polytank tanks can be equipped with a full range of instrumentation options engineered to give operators accurate, real-time visibility into tank levels, temperatures, and system integrity.
- Liquid level indicators and control gauges including external reverse float indicators that monitor tank levels without external sight glass product exposure, minimizing leak risk
- Temperature ports positioned for accurate thermal monitoring of stored fluids
- Sensor and outlet ports custom-located on top, side, or bottom for instrumentation, fill line indicators, and process connections
- Leak detection controls panel-mounted systems for monitoring interstitial space integrity, particularly in double-wall applications
Mixing, Reactor, and Process Integration
Houston PolyTank mixing, reactor, and process integration options are engineered to handle high-torque agitation loads, temperature-controlled processes, and complete drainage requirements, built directly into the tank structure, for reliable, long-term process performance.
- Mixer mounts engineered for torque and load, no external support to ground
- Custom mixer openings for large‑scale agitation systems
- Agitator support structures for vertical or side‑entry mixers
- Slope‑bottom tank designs and internal structural supports engineered for efficient mixing and complete drainage
- Mixer opening with integrated mixer mount for high‑torque mixing and process integration (no period)
- Immersion heater mounts for temperature‑controlled processes
66” mixer opening with integrated mixer mount for high‑torque mixing and process integration
Reactor tank with removable lid
Safety and Access Equipment
Every safety and access component is engineered to OSHA standards and integrated into the tank design, ensuring your team has secure, code-compliant access for inspection, maintenance, and daily operations.
- Ladders with walk-through and safety gate
- Handrails for elevated tank access
- Inspection rings for weight measuring of load cells
- Wind and seismic-rated tie-down systems with PE-stamped engineering calculations available
Integrated ladder and handrail system providing secure, OSHA‑aligned access for inspection and maintenance.
Secondary Containment
Houston Polytank secondary containment tanks are custom engineered as integral components of larger chemical storage systems, ensuring your facility meets EPA and local regulatory compliance standards while providing the highest level of spill protection available.
- Integrated containment basins for spill prevention
- External containment solutions for regulatory compliance
- Custom fabricated tank-within-a-tank options available for select applications — with or without an external containment area
Double-wall tank has two cylinders and two floors while sharing a common lid
Internal Components
Houston Polytank internal components are custom engineered and fabricated as part of the complete tank solution, ensuring structural integrity, precise flow distribution, and process performance are built in from day one, not added as an afterthought.
- Internal and external down pipe supports structurally integrated supports that stabilize fill and discharge piping along the full interior sidewall height
- Custom‑fabricated internal structural grid engineered for process‑specific load distribution and flow control.
- Aeration or mixing grids engineered for water treatment, chemical blending, and process applications requiring internal flow distribution
- Custom internal structures designed and fabricated to your exact process requirements, including baffles, weirs, and reinforced mounting platforms
Top and Bottom Configurations
The right top and bottom configuration eliminates process inefficiencies before they start. Houston PolyTank engineers every opening, drain point, and connection location to your exact flow requirements, ensuring your tank works with your process, not against it.
- Flat, cone, or recessed tops
- Top and sidewall fitting configurations custom-positioned for your application, from top-entry fill and vent connections to bottom outlet discharge, every opening is engineered to spec.
- Cone, sloped, or flat bottom configurations for drainage and mixing efficiency
- Top-entry fill, vent, and instrumentation connections
- Bottom outlet discharge and drain connections custom-positioned to spec
- Cone bottom designs available for complete drainage and solids management
Slope bottom tanks are designed with a sloped floor that channels contents toward a low point for complete drainage, supporting 100% cleanout, minimizing residue buildup, and reducing maintenance time in applications that demand:
- Full product evacuation
- Improved sanitation
- Reduced downtime
- Easier tank cleaning and inspection
Top and bottom fitting configurations are custom-positioned for your application, from top-entry fill and vent connections to bottom outlet discharge, every opening is engineered to spec.
Slope-bottom mixing tanks under fabrication, engineered for efficient agitation and complete drainage
Custom-fabricated internal structural grid engineered for process-specific load distribution and flow control