UK HQ Your time

US Equipment Standards

Complete compliance guide for ASME certification, EPA regulations, FDA requirements, and US-specific wastewater treatment equipment standards.

ASME Boiler & Pressure Vessel Code

American Society of Mechanical Engineers certification for pressure equipment

ASME U Stamp Certification

The ASME U Stamp is the certification mark for pressure vessels built to ASME Section VIII standards. It signifies that the vessel meets all requirements for design, materials, fabrication, inspection, and testing.

ASME Section VIII Div 1
  • Design by rule (DBR)
  • Traditional safety factors
  • Most common certification
  • Pressure up to 3,000 psi
ASME Section VIII Div 2
  • Design by analysis (DBA)
  • Higher allowable stresses
  • More rigorous analysis
  • Cost-optimised design

DAF Flotation Units

Dissolved Air Flotation
ASME U StampSection VIII Div 1NB Reg
  • ASME U Stamp certified
  • National Board registered
  • Design pressure: 75-150 psi
  • Third-party AI inspection
  • ASME data reports provided
View DAF Units

Pressure Vessels

Process & Storage Tanks
ASME U StampSection VIIIUM Stamp
  • U or UM stamp available
  • Div 1 or Div 2 design
  • Material certifications
  • RT/UT inspection
  • Hydrostatic testing
View Vessels

Lamella Clarifiers

Inclined Plate Settlers
AWS D1.1AISCASTM
  • AWS D1.1 structural welding
  • ASTM material grades
  • AISC steel construction
  • Hot-dip galvanizing
  • Seismic design available

EPA Regulations & NPDES Permits

Understanding US federal wastewater regulations and permitting requirements

RegulationTypeScopeKey Requirements
40 CFR Part 403DischargePretreatment standardsProhibited discharge standards, categorical standards
40 CFR Parts 405-471DischargeEffluent guidelinesIndustry-specific discharge limits (BPT, BAT, NSPS)
NPDES PermitsDischargePoint source dischargeTechnology-based and water quality-based limits
40 CFR Part 503SludgeBiosolids managementPathogen reduction, vector attraction reduction
CWA Section 311OilOil spill preventionSPCC plans, facility response plans

Categorical Industries

  • Meat & poultry processing (40 CFR 432)
  • Dairy products (40 CFR 405)
  • Food processing (40 CFR 408)
  • Oil & gas extraction
  • Metal finishing

Common Effluent Limits

  • BOD5: 30 mg/L (monthly avg)
  • TSS: 30 mg/L (monthly avg)
  • pH: 6.0 - 9.0
  • Oil & grease: 15 mg/L
  • Fecal coliform: 200/100mL

FDA 21 CFR Compliance

Food and Drug Administration regulations for food contact equipment

Dairy Equipment

3-A Sanitary Standards
FDA 21 CFR3-A SSIEHEDG
  • 3-A Sanitary Standards
  • FDA 21 CFR 170-199
  • Stainless steel 316L
  • Surface finish Ra < 32 μin
  • CIP compatible design
View Dairy Equipment

Food Processing

Sanitary Design Equipment
FDA 21 CFRNSF/ANSI 2USDA
  • FDA compliant materials
  • NSF/ANSI 2 food equipment
  • USDA accepted equipment
  • Sanitary design principles
  • FSMA compliance support

Need US Certification Support?

Our US engineering team provides full ASME certification support, EPA compliance guidance, and FDA food equipment design. We work with authorized inspectors and notified bodies to ensure full compliance.

Related Standards Services

Australia Standards

Australian and New Zealand wastewater standards. AS 1210, AS/NZS 4020, state EPA requirements and equipment certification.

View

Europe Standards

European Union wastewater directives and national discharge limits.

View

Global Standards Reference

Directory of international wastewater treatment regulations and equipment compliance standards Organised by country and region.

View

GCC Standards

Gulf Cooperation Council wastewater standards. UAE, Saudi Arabia, Qatar, Kuwait, Bahrain and Oman discharge limits and equipment-compliance requirements.

View

UK Standards

United Kingdom wastewater and water treatment standards. UKCA marking, PER 2016, WRAS approval and Environment Agency permits.

View

Canada Standards

Canadian wastewater discharge standards by province. Federal guidelines, provincial permits and equipment approvals for Canada.

View

Industries We Serve

Our expertise spans multiple industries with sector-specific water treatment solutions.