PPH Concentric Reducer Graphic

PPH Concentric Reducer

The PPH Concentric Reducer is a high-performance thermoplastic fitting designed to connect two pipes of different diameters along the same centerline. Manufactured from Polypropylene Homopolymer (PPH), this reducer offers a smooth and gradual transition for fluids in pressure piping systems, reducing turbulence and maintaining optimal flow characteristics.

Ideal for chemical, water treatment, and industrial process lines in the UAE, the PPH Concentric Reducer provides excellent resistance to corrosion, aggressive media, and high operating temperatures, ensuring long-term durability and leak-proof performance.

PPH Concentric Reducer

Key Features Of PPH Concentric Reducer

  • Centerline Alignment: Maintains axial alignment while transitioning between different pipe diameters.
  • Excellent Chemical Resistance: Suitable for handling corrosive fluids like acids, bases, and industrial chemicals.
  • High Temperature Capability: Performs reliably in systems up to 100°C.
  • Fusion Weldable: Designed for butt-welding with PPH pipes and fittings for strong, seamless joints.
  • Corrosion-Proof: Resistant to rust, scale, and external environmental effects.
  • Low Flow Resistance: Smooth internal surface minimizes pressure drop and flow disruption.
  • UV-Resistant Option: Available with UV stabilization for outdoor installations in UAE conditions.
  • Durable and Lightweight: Easy to handle, install, and maintain.
PP Concentric Reducer Image

Technical Details of PPH Concentric Reducer

Specification Details
Product Type PPH Concentric Reducer
Material Polypropylene Homopolymer (PPH)
Connection Type Butt Weld
Standard Sizes DN25 x DN20 to DN315 x DN250 (or customized)
Pressure Rating PN10 / PN16 (size and application dependent)
Operating Temperature 0°C to +100°C (short-term up to 110°C)
Color Light Grey (Standard)
Density at 23°C ~0.91 g/cm³
Tensile Strength ≥25 MPa
Chemical Resistance Excellent – resistant to acids, alkalis, solvents, and salts
UV Resistance Available (for outdoor installation)
Standards Compliance DIN 8077/8078, ISO 161
Common Applications Chemical processing, water treatment, desalination plants, industrial fluid handling, and marine piping systems
in the UAE
Technical Measurement of PPH Concentric Reducer
PPH Reducer Couplers Drawings
Nominal Size d1 d2 l1 d3 d4 l2 D1 D2 L
25×20 24.1 23.8 18.2 19.3 19 16.2 33.6 28 34.9
32×20 31 30.7 20.2 19.3 19 16.2 42.4 28 37.5
32×25 31 30.7 20.2 24.1 23.8 18.2 42.4 33.6 38.6
40×20 39 38.6 22.2 19.3 19 16.2 52.6 28 40.5
40×25 39 38.6 22.2 24.1 23.8 18.2 52.6 33.6 42
40×32 39 38.6 22.2 31 30.7 20.2 52.6 42.4 51.4
50×20 49 48.6 25.2 19.3 19 16.2 66 28 43
50×25 49 48.6 25.2 24.1 23.8 18.2 66 33.6 48
50×32 49 48.6 25.2 31 30.7 20.2 66 42.4 51
50×40 49 48.6 25.2 39 38.6 22.2 66 52.6 59.2
63×20 61.9 61.4 28.6 19.3 19 16.2 84.4 28 48.3
63×25 61.9 61.4 28.6 24.1 23.8 18.2 84.4 33.6 51
63×32 61.9 61.4 28.6 31 30.7 20.2 84.4 42.4 53.2
63×40 61.9 61.4 28.6 39 38.6 22.2 84.4 52.6 56
63×50 61.9 61.4 28.6 49 48.6 25.2 84.4 66 69.7
75×32 73.6 72.3 31.5 31 30.7 20.2 95.8 42.4 65.8
75×40 73.6 72.3 31.5 39 38.6 22.2 95.8 52.6 68.5
75×50 73.6 72.3 31.5 49 48.6 25.2 95.8 66 72
75×63 73.6 72.3 31.5 61.9 61.4 28.6 95.8 84.4 78.4
90×32 88.3 86.9 36.2 31 30.7 20.2 113.7 42.4 78
90×50 88.3 86.9 36.2 49 48.6 25.2 113.7 66 81.5
90×63 88.3 86.9 36.2 61.9 61.4 28.6 113.7 84.4 86.4
90×75 88.3 86.9 36.2 73.6 72.3 31.5 113.7 95.8 89.9
110×50 107.9 106.4 42 49 48.6 25.2 138.4 66 90
110×63 107.9 106.4 42 61.9 61.4 28.6 138.4 84.4 95.6
110×75 107.9 106.4 42 73.6 72.3 31.5 138.4 95.8 100.1
110×90 107.9 106.4 42 88.3 86.9 36.2 138.4 113.7 104.1
  • d1 – Inner Diameter of Larger Socket
  • d2 – Inner Diameter of Smaller Socket
  • l1 – Insertion Length of Larger Socket
  • d3 – Inner Diameter of Second Side (Larger End)
  • d4 – Inner Diameter of Second Side (Smaller End)
  • l2 – Insertion Length of Smaller Socket
  • D1 – Outer Diameter of Larger Side
  • D2 – Outer Diameter of Smaller Side
  • L – Total Length of the Fitting

PPH Concentric Reducer

Technical Specifications of PPH Concentric Reducer

Custom Product Manufacturing Available

If you are searching for customized product designs that meet your requirements, don’t worry. Petron Thermoplast also offers custom product manufacturing services to meet the unique needs of various industries. Work with our expert engineers to create custom designs suited for your application.

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