HDPE Transition Threading PE/Steel Transition Adapter for Fuel Gas

Key Features of HDPE Transition Threading PE/Steel Transition Adapter for Fuel Gas

• PE100 RC material certified for gas applications: meets ISO 4437 pressure and crack resistance requirements.
• Fusion connection on HDPE side, NPT or ISO threaded steel end.
• Full-seal design is validated by EN 1555 leak-proof testing.
• Chemical and UV resistance give a service life of 50 years or more.

Manufacturing Process of HDPE Transition Threading PE/Steel Transition Adapter for Fuel Gas

Each is produced by injection overmolding with the steel threaded insert precision-aligned during high-pressure PE100 RC melt injection.

Critical Process Parameters of HDPE Transition Threading PE/Steel Transition Adapter for Fuel Gas

• Melt temperature control: 230±5°C (ISO 1133)
• Insert preheating: 70–90°C to prevent thermal stress cracking
• Holding pressure ≥80 MPa to ensure molecular interpenetration
• Cooling gradient ≤15°C/min

Raw Material Characteristics of HDPE Transition Threading PE/Steel Transition Adapter for Fuel Gas

• Density ≥950 kg/m³ (ISO 1183)
• Slow crack growth resistance SCG ≥500h (ISO 13479)
• Melt flow rate MFR: 0.15–0.3 g/10min (190°C/5kg)
• Tensile yield strength ≥22 MPa (ASTM D638)

Typical Applications of HDPE Transition Threading PE/Steel Transition Adapter for Fuel Gas

• is used at material transition points in municipal gas network upgrades.
• serves piping systems in LPG storage and distribution facilities.
• is installed for branch connections in industrial gas transmission.
• is used at underground pipeline interfaces in CNG refueling stations.

Application Scenarios of HDPE Transition Threading PE/Steel Transition Adapter for Fuel Gas

• Steel-to-HDPE transitions at road and river crossings, and at gas pressure regulation stations — is the standard adapter for these connections.