Certifications & Testing
Quality Assurance Documentation for Malleable Iron & Grooved Pipe Fittings
Certification Information
CE Certification
European Conformity mark indicating compliance with EU health, safety, and environmental protection standards
Applicable Standards: Pressure Equipment Directive (PED) 2014/68/EU
UL Certification
Underwriters Laboratories certification for safety standards compliance in North America
Applicable Standards: UL 213 for fire protection systems
ISO Certification
Quality management system certification demonstrating consistent quality processes
Scope: Design, manufacture, and distribution of pipe fittings
Malleable Iron Pipe Fittings Test Results
Pressure Testing Results
| Test Item | Test Standard | Test Conditions | Test Results | Standard Requirements |
|---|---|---|---|---|
| Hydrostatic Strength Test | EN 10242 | 25 bar, room temperature | No leakage | No leakage |
| Burst Test | ASTM F1476 | Increasing until failure | 68 bar | ≥ 50 bar |
| Air Tightness Test | EN 10242 | 6 bar, air | No leakage | No leakage |
Material Performance Test Results
| Test Item | Test Standard | Test Results | Standard Requirements |
|---|---|---|---|
| Tensile Strength | EN 1562 | 360 MPa | ≥ 350 MPa |
| Elongation | EN 1562 | 12% | ≥ 10% |
| Hardness | ISO 6506 | 150 HB | 130-180 HB |
| Impact Resistance | ISO 148-1 | 14 J | ≥ 12 J |
Coating Performance Test Results
| Test Item | Test Standard | Test Results | Standard Requirements |
|---|---|---|---|
| Coating Thickness (Hot-dip Galvanized) | ISO 1461 | 70 μm | ≥ 45 μm |
| Salt Spray Test | ISO 9227 | 720 hours | ≥ 500 hours |
| Adhesion Test | ISO 2409 | Class 0 | ≤ Class 1 |
Grooved Pipe Fittings Test Results
Pressure Testing Results
| Test Item | Test Standard | Test Conditions | Test Results | Standard Requirements |
|---|---|---|---|---|
| Hydrostatic Strength Test | AWWA C606 | 37.5 bar, room temperature | No leakage | No leakage |
| Burst Test | ASTM F1476 | Increasing until failure | 95 bar | ≥ 75 bar |
| Vacuum Test | ASTM F1476 | -0.85 bar, 24 hours | No leakage | No leakage |
Material Performance Test Results
| Test Item | Test Standard | Test Results | Standard Requirements |
|---|---|---|---|
| Tensile Strength | ASTM A536 | 470 MPa | ≥ 448 MPa (65,000 psi) |
| Yield Strength | ASTM A536 | 325 MPa | ≥ 310 MPa (45,000 psi) |
| Elongation | ASTM A536 | 14% | ≥ 12% |
| Impact Resistance | ASTM E23 | 18 J | ≥ 15 J |
Coating Performance Test Results
| Test Item | Test Standard | Test Results | Standard Requirements |
|---|---|---|---|
| Coating Thickness (Epoxy) | ASTM D7091 | 65 µm | 35-75 µm |
| Salt Spray Test | ASTM B117 | 1000 hours | ≥ 750 hours |
| Adhesion Test | ASTM D3359 | 5A | ≥ 4A |
How Threaded Malleable Iron Tees Shape Branches, Drain Legs, and Future Outlets on Water, Heating, and Gas-Related Lines
See how threaded malleable iron tees shape branch outlets, drain legs, finish choice, and BSP or NPT thread logic on water, heating, and gas-related lines.
Black or Galvanized Threaded Malleable Iron Fittings? Reading Finish Choice on Water, Heating, and Gas-Related Lines
Compare black and galvanized threaded malleable iron fittings by service scene, moisture exposure, thread logic, and line appearance on water, heating, and gas-related runs.
Rigid or Flexible Grooved Couplings? Matching Pipe Movement in Fire Protection and HVAC Runs
See how rigid and flexible grooved couplings answer pipe movement, alignment, gasket context, and cautious fire protection or HVAC service needs.
English 
Russian 
German 
Italian 
Arabic 
Spanish 
French 
Japanese 
Korean 
Uzbek 
Indonesian 
Portuguese 
Persian 
Turkish