Wastewater Treatment Equipment Specification Sheet: What EPC Contractors Must Include

May 2, 2026

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Wastewater Treatment Equipment Specification Sheet: What EPC Contractors Must Include


Yixing Enviro Equipment


Water and Wastewater Treatment

A well-structured equipment specification sheet is the difference between winning and losing an EPC project bid. Incomplete or vague specifications lead to change orders, cost overruns, and schedule delays. This article provides a comprehensive template that covers everything international EPC contractors need.

Why Specifications Matter

In a survey of 200+ EPC projects, the top three causes of cost overruns were:

  1. 34% – Incomplete or ambiguous equipment specifications
  2. 28% – Material grade and quality discrepancies
  3. 22% – Performance guarantee gaps

Complete Specification Template

1. General Information

  • Project name and reference number
  • Equipment tag number (P&ID reference)
  • Equipment type and model designation
  • Quantity required
  • Intended service and duty cycle

2. Design Conditions

Parameter Required Information
Flow Rate Design / Max / Min (m3/h or L/s)
Influent Quality BOD, COD, TSS, pH, Temperature
Effluent Requirements Regulatory limits (mg/L)
Ambient Conditions Temperature, humidity, altitude, seismic zone
Power Supply Voltage, frequency, phase
Area Classification Safe / Zone 1 / Zone 2

3. Material Specifications

Component Material Standard Grade
Wetted Parts ASTM A240 / EN 10088 SUS304 / SUS316L
Fasteners ASTM A193 B8M (316 SS)
Seals/Gaskets EPDM / FKM Per chemical compatibility
Paint/Coating ISO 12944 C3/C4 Epoxy + Polyurethane

4. Performance Guarantees

  • Minimum removal efficiency at design flow
  • Maximum power consumption per unit treated
  • Maximum noise level at 1 meter
  • Minimum equipment availability (99%+)
  • Mean time between failures (MTBF)

5. Quality and Testing Requirements

  • Welding qualification: ISO 3834 / ASME Section IX
  • Non-destructive testing (NDT) requirements
  • Factory acceptance test (FAT) protocol and witness points
  • Hydrostatic test pressure (1.5x design pressure)
  • Performance test after installation

6. Documentation Requirements

  • General arrangement drawings (GA)
  • P&ID and wiring diagrams
  • Material certificates (EN 10204 3.1)
  • Operation and maintenance manuals
  • Spare parts list with recommended stock

Common Pitfalls for International Projects

  1. Material grade ambiguity: “Stainless steel” without specifying 304 vs 316L (30% price difference, critical for corrosion resistance)
  2. Missing FAT requirements: Not specifying witnessed factory testing leads to field failures
  3. Inadequate coating specs: Coastal/marine environments require C5-M corrosion protection per ISO 12944
  4. Control system gaps: Not specifying PLC brand/protocol creates integration nightmares

Feiran EP Documentation Standard

Every Feiran EP equipment shipment includes complete documentation package: GA drawings, material certificates (EN 10204 3.1), FAT reports, O&M manuals, and recommended spare parts lists. All to German DIN standards.

Request specification templates: sales@yixingenviroequipment.com | WeChat: 008613771308660

Wastewater Treatment Equipment Specification Sheet: What EPC Contractors Must Include