What are Industrial Sanitary and Hydraulic Drainage Installations?
Industrial industrial sanitary installations are the set of pipes, connections, collection structures, manholes, grease traps, sumps, and pumping systems designed to safely collect, conduct, and discharge wastewater (black and gray), storm, and process water from a manufacturing plant.
Unlike residential installations, industrial systems must withstand severe mechanical loads (forklift and truck traffic), corrosive effluents, high temperatures, and extreme flow variations.
Key components of an industrial drainage network:
- Conveyance lines: High-Density Polyethylene (PAD/HDPE), high-strength PVC (SDR 35 / Schedule 40/80), and Stainless Steel (304 and 316L) pipes.
- Collection systems: Heavy-duty industrial floor drains, stainless steel slotted trench drains, concrete trenches with traffic-rated grates, and storm drain inlets.
- Inspection and diversion structures: Masonry or precast concrete manholes with novolac epoxy coatings, inspection chambers, and pressure-breaking boxes.
- Primary treatment systems: Grease and oil traps (interceptors), API (oil-water) separators, and grit chambers.
- Pumping systems: Wet/dry pumping sumps equipped with submersible grinder pumps and alternating control panels.
When is the rehabilitation or installation of a new network needed?
A maintenance or plant manager should consider SINE México's intervention upon detecting the following operational signs:
- Recurrent flooding in maneuvering yards or industrial bays: Inability of the storm drainage network to discharge typical rainfall in northeastern Mexico.
- Backflows or foul odors: Severe obstructions, negative slopes (counter-slopes) due to ground settlement, or lack of hydraulic seals (odor traps).
- Sinkholes or depressions in the concrete slab: Serious indication of collapsed pipes or open joints that are eroding the subsoil due to leakage.
- Increase in pollutant levels in external discharges: Leaks in the process network mixing with the storm or sanitary network, leading to fines from CONAGUA or the local operating agency.
- Expansion of production lines or industrial bays: Increase in hydraulic flow exceeding the existing network's design capacity.
- Non-conformities in food safety audits (HACCP/FDA): Presence of open non-sanitary drains, accumulation of stagnant water, or rusted floor drains in food processing areas.
Problems SINE México solves
- Plant shutdowns due to flooding: We correctly design and oversize storm drainage networks to prevent atypical storms from halting production.
- Environmental sanctions and fines: We prevent soil and groundwater contamination through 100% sealed drainage networks, complying with permissible discharge limits.
- Cross-contamination risks: In the pharmaceutical and food industries, we physically separate process lines from sanitary lines to eliminate biological risks.
- Structural damage to foundations: Timely repair of underground leaks prevents the washing away of fines that destabilizes industrial floors and building footings.
- Constant pumping failures: We design and install sumps with adequate storage capacity and pumping power, preventing overflows of hazardous effluents.
Types of Drainage Solutions and Systems
| Drainage Type | Recommended Material | Chemical Resistance | Thermal Resistance | Main Application |
|---|---|---|---|---|
| Sanitary Drainage (Services) | PVC SDR 35 / PAD | Medium | Up to 60°C | Offices, restrooms, dining halls, and plant changing rooms. |
| Storm Drainage | Corrugated PAD / Concrete | Low | Ambient temperature | Maneuvering yards, rooftops, internal roadways. |
| Chemical Process Drainage | Smooth PAD (Heat-fused) / PVDF | High (Acids/Alkalis) | Up to 82°C (PAD) / 120°C (PVDF) | Chemical plants, automotive (electroplating/painting). |
| Food Grade Sanitary Drainage | Stainless Steel 304 / 316L | Excellent | Up to 150°C (CIP) | Wet process areas, dairy, meat, beverages. |
Cutting-edge materials and technologies
At SINE México, we don't improvise; we select materials according to the chemical and mechanical compatibility of the project:
- High-Density Polyethylene (PAD/HDPE): We use smooth and corrugated piping systems from leading brands (such as ADS or Pipelife). Butt fusion joining ensures a monolithic, zero-leak joint, ideal for soils with settlements.
- Stainless Steel (Blücher / ACO Systems): Hygienically designed channels and floor drains without 90° corners to prevent bacterial proliferation (Listeria). Resistant to CIP (Clean-in-Place) cleaning processes with caustic soda and nitric acid.
- Novolac Epoxy Coatings for Manholes: We protect concrete manholes against attack from sewer gases ($H_2S$) and fatty acids using high-resistance barrier systems from brands like Sika or Sherwin-Williams.
Applicable Regulations and Standards
Our projects and installations strictly adhere to national and international regulations:
- NOM-001-CONAGUA-2011: Potable water systems, domestic connections, and sanitary sewerage - Watertightness - Specifications and test methods.
- NOM-001-SEMARNAT-2021: Maximum permissible limits for pollutants in wastewater discharges into national property receiving bodies.
- FDA / USDA / NSF: Hygienic design guidelines for drainage in food and pharmaceutical processing plants.
- ASME A112.6.3 Criteria: For industrial and heavy-duty floor drains.
Our work process (SINE)
- Diagnosis and Video Inspection: We evaluate the existing network with push cameras or tracked robots to locate collapses, roots, or incrustations without the need for excavation.
- Engineering and Hydraulic Design: We calculate diameters, slopes, and collection volumes using specialized software, ensuring self-cleaning flow velocities (between 0.6 and 3.0 m/s).
- Site Preparation and Excavation: We perform precision concrete cutting, heavy machinery or manual excavation, trench shoring for personnel safety (complying with NOM-031-STPS), and sand bedding installation.
- Installation and Thermofusion: Pipe laying with thermofusion-certified personnel. Installation of drains, manholes, and transition connections.
- Hermeticity Tests: We perform hydrostatic or pneumatic tests, documented in the presence of client supervision, to certify the absence of leaks.
- Backfill and Pavement Restoration: Layered compacted backfill with mechanical equipment (rammer/vibrator) and pouring of high-strength concrete pavement, reinforced with mesh or fiber, matching the existing finish.
- Technical Dossier Delivery: As-built plans, video inspection reports, material quality certificates, and warranty letters.
Common mistakes when hiring / installing (And how we avoid them)
- Use of commercial sanitary PVC in heavy traffic areas: Thin-walled pipes collapse under forklift traffic. At SINE, we calculate live loads (H-20) and specify heavy-duty PAD pipe or Schedule 40 PVC with the necessary concrete encasement.
- Insufficient or negative slopes: Cause sedimentation and constant blockages. We use high-precision laser levels throughout the laying process to ensure uniform minimum slopes of 1% to 2% depending on the diameter.
- Omitting grease traps in dining areas or processes: Causes fats to solidify in the general network, completely obstructing it. We design and install flow-dimensioned grease interceptors under ASME standards.
- Poorly sealed joints in masonry manholes: Water filters into the subsoil, creating caverns under the industrial floor. SINE builds reinforced concrete manholes cast on-site or prefabricated, internally sealed with cementitious or epoxy waterproofing mortars.
Factors that determine project cost
The cost of an industrial drainage installation or rehabilitation varies depending on:
- Excavation depth: Greater depth requires more earth movement, safety shoring, and dewatering pumping if the water table is high.
- Type of terrain and surface: Excavation in soft soil vs. demolition of 20 or 25 cm thick reinforced concrete slabs.
- Pipe material: Food-grade stainless steel has a significantly higher cost than PAD or industrial PVC.
- Interference with other lines: Crossings with gas lines, fire water, electrical power, or compressed air that require precise manual excavation.
- Execution schedules: Night work or on holidays to avoid stopping plant production.
Request a Quote and Technical Visit
Optimize your plant's hydraulic infrastructure with durable, high-engineering solutions. At SINE México we conduct free diagnostic technical visits in Torreón, Saltillo, Piedras Negras, and throughout the northeast of the country.
- WhatsApp: +52 871 228 3838
- Email: ventas@sinemantenimiento.com
- Head Office: Torreón, Coahuila.