The DN50 female thread adapter HDPE is a straightforward, ready-to-use fitting with a unit weight of 0.335 kg. It features a nominal size of 50mm, an outer diameter of 66mm, a wall thickness of 9mm, a length/height of 102mm, a socket depth of 60mm, and a fusion zone width of 27mm. Manufactured from high-quality material and verified through meticulous manual measurement, this product guarantees accurate dimensions and strict adherence to production specifications. Its design incorporates a special internal thread, enabling a secure connection that effectively integrates the fitting with the pipeline. Suitable for almost all flowing fluid media, it ensures a robust and stable link within the entire pipeline system, leading to widespread use in applications such as water supply and drainage, heating systems, and domestic hot water facilities.

Technical Parameters

Parameter Category	Specific Value
Product Name	Female Thread Adapter
Specification (DN)	50
Unit Weight (kg)	0.335
Inner Diameter (mm)	50
Outer Diameter (mm)	66
Wall Thickness (mm)	9
Height (mm)	102
Socket Depth (mm)	60
Fusion Zone Width (mm)	27

Quality Description

The quality of a high-grade female thread adapter HDPE depends on two key components: the "plastic body" and the "metal insert." The main body of the fitting is predominantly made of plastic, specifically high-quality polyethylene (PE80/PE100). This dedicated, high-grade PE material is fully compatible with our pipes of the same grade. Its superior manufacturing quality ensures that when welded to a pipe, molecular interdiffusion and fusion occur seamlessly at the interface. The "internal threaded insert" is typically made of brass or stainless steel, offering excellent corrosion resistance and mechanical strength. In truly high-quality products, advanced injection molding techniques and precise processes are employed to create an inseparable, secure bond between the plastic and the metal insert, resulting in a seamless, rigid connection. This ensures long-term reliability under water pressure and applied torque without any hidden risks. Inferior fittings often use recycled materials or poorly manufactured inserts, leading to potential safety hazards, unreliability, and instability.

FAQ

Q: After electrofusion welding the plastic end of a threaded adapter to the pipe, the threaded end (metal/plastic) is slanted, preventing proper connection with other threaded components?

A: (1) Use a square during welding to ensure the threaded end maintains a 90-degree angle to the pipe.
(2) Securely fix both the adapter and the pipe during the welding process to prevent movement.
(3) If misalignment occurs: minor slanting can sometimes be compensated for by adjusting the angle of the mating fitting; severe misalignment requires cutting and re-welding.

Q: Leakage occurs at the junction between the metal internal/external threads and the plastic body, especially worsening when water pressure increases?

A: Inspect the quality of the injection molding bond between the metal insert and plastic for defects like bubbles or gaps (high-quality products should have none). During installation, wrap the threads with PTFE tape or apply sealant, and ensure the metal insert itself is not loose. If leakage is severe, replace the adapter with one manufactured using "overmolding" or "mechanical locking" techniques.

Application Scope

Application Field	Specific Scenario	Key Performance Requirement	Premium vs. Standard Fitting
Energy Transport	Medium-pressure gas networks, LPG inlet pipes, oilfield water injection pipelines	High sealing, pressure resistance, corrosion resistance	Premium: Resists corrosion from gas, LPG, and oilfield brine, ensuring safety. Standard: Prone to corrosion, leading to leaks and safety incidents.
Special Environments	Desalination plants, ports & docks, underground mining	Resistance to salt spray, humidity, abrasion	Premium: Special materials/processes ensure stable performance and long life in harsh conditions. Standard: Rapidly degrades, becomes brittle, and fails prematurely in salty/damp environments.
Food Industry	Process lines in juice plants, dairies, bakeries	Complies with food safety standards, non-toxic, easy to clean	Premium: Uses food-grade materials with smooth inner walls that resist bacterial growth. Standard: May use non-food-grade recycled materials, posing contamination risks.
Chemical Corrosion Resistance	Chemical pipelines, laboratory waste fluid transport	Excellent resistance to acids, alkalis, and other chemicals	Premium: Materially stable, withstands chemical attack, preventing leaks and pollution. Standard: Poor chemical resistance, easily damaged, leading to safety failures.
Agricultural Irrigation	Farm water-saving irrigation, greenhouse drip systems	Weather resistance, UV resistance, resistance to soil chemicals	Premium: Withstands long-term outdoor exposure without significant degradation, ensuring years of reliable operation. Standard: Brittles and cracks under UV exposure and fertilizer chemicals.