
UL/FM Ductile Iron Grooved Rigid/Flexible Couplings/HDPE Couplings
Description
Technical Parameters
We pay attention to customer needs, manufacture quality uPVC Flange Adaptor, uPVC Flange Adaptor With Rubber Ring, HDPE pipe elbow and provide the best service. We believe that talent gain or loss is the key to success or failure. With a professional and reliable image, over the years we have established a strong customer network, and become many enterprises recognized suppliers and long-term partners.
HDPE Compression Fittings, PP compression fittings, HDPE compression coupler, PP compression coupler, hdpe mechanical coupling,hdpe straight coupler, hdpe compression coupling,hdpe push fit coupler,coupling hdpe pipe, PP compression coupling
HDPE compression fittings are the perfect choice for water supply applications! SUNPLAST HDPE compression fittings are specifically designed to enable the easy and safe connection of PE pipes to convey water for different applications, including drinking water supply, irrigation and mining. The fittings can be installed without special tools. Even with large diameters, installation is effortless, as the pipes do not touch the internal components during the insertion process. SUNPLAST HDPE Pipe Compression Fittings are suitable for PN16 bar throughout the complete range, which includes couplings, reductions, T-pieces, elbows, threaded connections and end caps in dimensions from dn20 mm to d 110 mm.
HDPE compression coupler fittings, also called HDPE mechanical coupler, is used to join two straight HDPE pipe in a mechanical connection method. The fittings can be supplied in a diameter of 20mm to 110mm, with normal working pressure PN16.

PP compression couplers are consisted of 5 palstic accessories:
Mark | Part Name | Material | Color |
A | Cap | High quality polypropylene black co-polymer (PP-B) | Blue |
B | Clinching Ring | POM resin | White |
C | Blocking Bush | High quality polypropylene black co-polymer (PP-B) | Black |
D | "O" Ring Gasket | NBR rubber | Black |
E | Body | High quality polypropylene black co-polymer (PP-B) | Black |
More brief details as below:
Product | HDPE compression coupler, PP compression coupler, HDPE mechanical coupling, HDPE straight coupler, HDPE compression coupling,HDPE push fit coupler, coupling hdpe pipe |
Specification | 20mm~110mm |
Pressure ratings | Working Pressure at 20℃: 20~63mm in PN16; 75~110mm in PN10 |
Material | High quality polypropylene black co-polymer (PP-B) |
Color | Black body / Blue Cap |
Manufacturing Standard | Dimensions and characteristics: ISO 3501/3503/3458/3459. To be installed on HDPE pipes: ISO 11922; DIN 8072/8074; Threads (BSP): ISO 7; DIN 2999. |
Samples available | Yes, samples are available, but charged. |
Packing method | Cartons |
MOQ | Negotiable |
Customized Logo available (OEM Service) | For small quantity of order, customer logo can be marked on the fittings by laser marking or sticker. For big quantity of order, customer logo can be embossed on the fittings. |
Production lead time | Mass stock available for regular sizes About 10 days for a 20ft container, 20 days for a 40ft container |
Warranty time | 1 years for normal use |
Payment term | T/T, L/C, DP, Western Union, or negotiable |
FOB loading port | Ningbo/Shanghai China |
Place of origin | Ningbo, China |
Product Specifications
HDPE/PP compression coupler fittings can be manufactured sizing from 20mm to 110mm. The size 20-63mm with a pressure of PN16, and 75-110mm pressurized in PN10.


Size (mm) | Pressure Rating (bar) | Weight (gram/PCS) | Packing (PCS/CTN) |
20 | PN16 | 72 | 240 |
25 | PN16 | 108 | 170 |
32 | PN16 | 158 | 112 |
40 | PN16 | 295 | 60 |
50 | PN16 | 487 | 32 |
63 | PN16 | 839 | 18 |
75 | PN10 | 1017 | 12 |
90 | PN10 | 1398 | 8 |
110 | PN10 | 2499 | 4 |
Our Product Range
As a integrated & experienced manufacturer & provider in China, SUNPLAST carries an extensive range of HDPE compression fittings in a diameter sizing from 20mm to 110mm, and all customers can find the best solution of fittings for their pipeline systems in SUNPLAST
Our poly pipe compression fittings include:
→ HDPE Compression Coupler/Coupling,HDPE Compression Reducer Fittings, HDPE Compression Female/Male Adaptor Fittings
→ HDPE Compression 90 Degree Elbow,HDPE Compression Female/Male Elbow Fittings
→ HDPE Compression Equal Tee, HDPE Compression Reducing Tee, HDPE Compression Female/Male Tee Fittings
→ HDPE Compression Flange Adaptor
→ HDPE Compression End Cap

Benefits Of HDPE Compression Fittings
There are multiple benefits to using HDPE compression fittings in your piping systems. Some of the main advantages include:
Easy to assemble and disassemble without the need for special tools
Low maintenance over time, which makes the piping system last longer
No soldering required, which is especially beneficial for areas where no soldering is allowed
Light-weight in comparison to other materials, which assists in making the assembly quick and more effective
Leak-free jointing is ensured via heat-infused joints to ensure strong connections
Leak-free connections, provided they are installed correctly
Corrosion resistant due to being HDPE. They won’t rust or disintegrate, even after continuous exposure to water or liquids
Can handle water surges due to excellent water hammer capabilities
Applicants of HDPE Compression fittings
The range of poly pipe compression fittings are for use with high density polyethylene pipes dedicated to fluid reticulation. They can be used in irrigation, drinking water systems, valves and high pressure lines for water, gas and other fluids, and many items suitable for a very wide range of plant engineering installation requirements.
• Watering: Residential, municipal, sport fields, golf courses.
• Irrigation: Agriculture, horticulture, vineyards.
• Industry: Compressed air.

Contact Us
If you have any requirements on PP compression fittings, or any question on our fittings, please contact us freely. SUNPLAST has well trained staff who are available to address your needs and provide technical support to all sectors when needed.

We uphold the tradition of independent innovation and the pursuit of excellence, and continue to conduct technological research and development in the field of UL/FM Ductile Iron Grooved Rigid/Flexible Couplings/HDPE Couplings for key user applications. The company focuses on the improvement of the comprehensive management level of the enterprise against the management improvement activities, and has achieved significant results. It is the core feature of our corporate culture to stick to the integrity, and we actively construct the integrity system inside and outside the enterprise.
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