Manways and Access Ports
- Top manways, bolted or threaded, available in multiple diameters
- Side manways for ground‑level access and inspection
- Inspection rings: secure, sealed access for routine maintenance
- Vents with stainless steel bug screens for safe pressure equalization
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.
Fittings and Nozzles
- Welded ANSI flanges (150‑lb) with metal, stainless steel, or PP‑dipped backing rings
- HDPE and PP nozzles custom‑located for inlet, outlet, overflow, and process connections
- Threaded or welded fittings based on application and chemical compatibility
Every fitting and nozzle is custom-located and welded to specification and engineered for chemical compatibility, precise process positioning, and long-term performance in HDPE and PP tank walls.
Instrumentation
Liquid level indicators and control gauges including external reverse float indicators that monitor tank levels without external sight glass product exposure, minimizing leak risk
Sight glasses for direct visual liquid level confirmation where required by process design
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
SCADA-compatible instrumentation available for automated monitoring and alarm integration
Houston Polytank tanks are equipped with a full range of instrumentation options engineered to give operators accurate, real-time visibility into tank levels, temperatures, and system integrity.
Mixing and Process Integration
Mixer mounts engineered for torque and load
66” 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
66” mixer opening with integrated mixer mount for high‑torque mixing and process integration.
Immersion heater mounts for temperature‑controlled processes
Houston PolyTank mixing 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.
Safety and Access Equipment
Ladders with walk-through and safety gate
Handrails for elevated tank access
Integrated ladder and handrail system providing secure, OSHA‑aligned access for inspection and maintenance.
Inspection rings for safe, sealed access to internal tank components during routine maintenance
OSHA‑compliant platforms (as required)
PE‑stamped seismic tie‑downs for code‑compliant installations
Wind and seismic-rated tie-down systems with PE-stamped engineering calculations available
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.
Secondary Containment
Integrated containment basins for spill prevention
External containment solutions for regulatory compliance
Custom fabricated Double-wall tank-within-a-tank options available for select applications — with or without an external containment area"
Double-wall construction with a removable bolted lid delivers built-in secondary containment and easy inspection access, engineered for demanding industrial applications.
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.
Thermal and Environmental Controls
Insulation systems for temperature‑sensitive indoor and outdoor storage
Immersion heaters compatible with HDPE and PP tank materials; safely maintaining fluid temperature without compromising tank integrity
External heat tracing for temperature‑controlled processes
Material selection matched to your temperature requirements:
HDPE up to 120°F
PP up to 180°F
Houston Polytank thermal and environmental control options are engineered to maintain precise storage temperatures, protecting temperature-sensitive chemicals, preventing freeze damage, and ensuring consistent process performance in any climate.
Internal Components
Internal 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.
Internal piping and distribution headers — custom-routed for precise chemical fill, discharge, or distribution within the tank
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
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.
Top and Bottom Configurations
Flat, cone, or recessed tops
Top and bottom 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
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.
Every accessory is engineered to integrate seamlessly with Houston PolyTank’s extrusion‑wound HDPE and PP tanks, ensuring performance, safety, and long‑term reliability in demanding industrial environments.
