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HDPE compression fittings are is mechanical fittings that are used to connect HDPE pipes to a fixture or valve. They are widely used in plumbing and piping systems, joining two pipes together. Compression fittings consist of three parts: the compression nut, the compression ring and the compression seat. A compression fitting works by sliding the pipe into the fitting, and then tightening the nut. The compression ring then compresses between the nut and receiving fitting, ensuring a water-tight connection

A HDPE compression reducer fitting is used to join two lengths of different-size metric HDPE pipe.

With a size range from 25/20 mm to 110/90 mm, PP compression reducer fittings are suitable for water and other similar fluids, with pressures up to 16 bar. Poly pipe Reducer compression fittings are made from high quality PP-B material that is resistant to etching by numerous chemical substances, and to UV rays, and are suitable for outdoor use.

More brief details as below:

Product Specifications

HDPE/PP compression reducer fittings can be manufactured sizing from 25×20mm to 110×90mm. The size 20-63mm with a pressure of PN16, and 75-110mm pressurized in PN10.

Benefits Of PP Compression fittings

By comparison of the other fittings, poly pipe compression fittings provide outstanding physical and performance benefits:

By comparison of the other HDPE fittings, HDPE electrofusion fittings repute more benefits:

* Fast assemble & disassemble, Simple installation：No welding, No special tools required, easily assembling & disassembling, those makes PP compression fittings more & more popularly used, especially for irrigation systems.

* lower installation costs & labor costs: HDPE compression fittings is a fittings use a mechanical connection method, fast to install & less install workers will be required.

* Perfect watertight: The unique design & NBR “O” rings ensure Poly compression fittings a perfect watertight for long time use.

Installation procedure For HDPE Compression Fittings

HDPE Pipe Compression fittings provide a a easy & simple installation for HDPE pipe without welding. It allows joining of pipe in a few easy steps. Simply cut, chamfer and clean the pipe, loosen the compression nut on the fitting, insert the pipe into the fitting until it bottoms out, and mechanically tighten the nut. When properly completed, your new connection is immediately ready for pressure.

1. Pipe ends must be cut square and burr-free before using with the fittings. Chamfer

may be provided on the pipe end to facilitate ease of pipe insertion.

2. No need to open fitting & take apart components separately. Just loosen the QJN

(Quick Joint Nut) by three to four turns.

3. Insert the pipe into the fitting up to the stopper.

4. Hand Tighten the QJN for fittings up to 32 mm.

5. Use Wrench to tighten the QJN after hand tightening for fittings 40 mm and above.

6. After Firm Hand Tightening, Tighten the QJN with wrench only for a quarter turn.

Manufacturing Facilities

SUNPLAST is a ISO9001 certificated manufacturing factory. As a premier manufacturer of HDPE compression fittings, the factory owns mature technology, advanced production machine, professional workers & completed QC system. All compression fittings are manufactured strictly in compliance with national standards and international standards.

Till now, there is over 30 sets of injection machines in SUNPLAST workshop, available to manufacture HDPE fittings till 800mm, and annual production capacity reaches 6,000 tons.

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 adhere to the business tenet of 'survive by honesty and progress by innovation' to adapt to the changing market, and conquer consumers with high-quality HDPE Compression Pipe Fittings and Reducers. Based on our business, we are developing in multiple ways, taking quality management as the root and customer satisfaction as the purpose, and meeting the ever-changing customer needs through quick response. We always believe that corporate responsibility is not only in satisfying customers now, but also in social welfare activities.

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