Custom HDPE Manifolds

An HDPE manifold is a distribution/collection component made from PE100 material and joined by butt fusion or electrofusion, which distributes the incoming flow to the branches. It is resistant to impact and corrosion; Novus Energy manufactures it to project specifications in header sizes Ø63–Ø400 for cold water, pump and industrial lines.

• Header size: Ø63 mm – Ø400 mm
• Header length and branches: project-specific
• Operating temperature: 40 °C (PE100, continuous operation)
• Pressure class: PN 10 – PN 16 (SDR 11 / SDR 17)
• Outlet connection: butt fusion, electrofusion, flanged (PE flange adapter + steel flange) or threaded adapter
• Price: project-specific (quoted to your dimensions)

Design your own manifold → Choose the dimensions, download your A4 technical drawing and get a quote via WhatsApp.

What does an HDPE manifold do?

A manifold header made from PE100 material and joined by butt fusion and electrofusion. It is resistant to impact and corrosion; it is used in cold water lines, pump suction–discharge lines and industrial installations. The job of the manifold is to receive the flow from the boiler/pump line at a reduced velocity and distribute it evenly to the branches. The larger the header diameter, the lower the velocity, and the lower the pressure loss, noise and imbalance between the branches.

For flanged connections, the PE flange adapter is supplied together with a galvanized/stainless steel blind flange.

Key features

• Resistant to impact and underground conditions
• Monolithic joints by butt fusion/electrofusion
• Long service life in pump suction–discharge and cold water lines
• Transition to metal pipework with PE flange adapter + steel flange

HDPE manifold size and capacity table

The values below are calculated assuming a water velocity of 1.0–1.5 m/s and ΔT = 20 K. If the ΔT of the heating circuit is different, the capacity changes in direct proportion; the final selection is made according to the system design calculation.

How to select the manifold diameter

Selection is made in three steps:

1. Find the total flow rate. For heating: Q (m³/h) = P (kW) / (1.163 × ΔT).
2. Limit the velocity. Aim for 1.0–1.5 m/s in the header: Q = A × v × 3600.
3. Check the cross-section ratio. The header cross-section should be at least 1.5 times the total cross-section of the branches.

Example: a Ø160 mm header is suitable for a flow rate of 48.5 – 72.7 m³/h and, at ΔT = 20 K, a thermal output of 1.13 – 1.69 MW. If you would rather not calculate by hand, the configurator runs the same check automatically with every change and suggests the next size up if needed.

Branches, connections and accessories

Branch sizes: 32 · 40 · 50 · 63 · 75 · 90 · 110 · 125 mm. Outlet connections are made as butt fusion, electrofusion, flanged (PE flange adapter + steel flange) or threaded adapter; branches of different sizes and types can be combined on the same header. Branch positions are defined by center dimensions measured from the left or right end of the header; if valves, unions or meters are to be fitted, the center-to-center spacing is set to the width of the fitting plus an installation allowance.

Parts added on request: ball/butterfly valves, pressure gauges and thermometer pockets, drain valve, air vent connection, strainer, meter connection union, UPN/galvanized support legs, wall bracket, insulation and labeling.

Manufacturing, testing and delivery

The header and branches are machined to the dimensioned drawing and joined by fusion welding; a leak test is carried out after manufacturing. Delivery time depends on the size, the number of branches and the quantity; lead time and price are given with the quotation, per project.

Where are HDPE manifolds used?

boiler rooms · water meter banks · heating–cooling lines · solar thermal installations · housing developments · industrial installations

Other manifold types

The same project may call for a different material: PP-R manifolds · Stainless steel manifolds · Galvanized manifolds · Black steel manifolds. For a comparison and selection criteria, see the manifold selection guide.

Find the manifold type you need

• Cold water manifold — PE100 header, resistant to impact and corrosion
• Pump suction–discharge manifold — in booster sets and pumping stations
• Industrial water manifold — process water and cooling tower lines
• Underground distribution manifold — leak-tight lines with butt fusion and electrofusion

Frequently asked questions

Last updated: September 20, 2026 · Prepared by: Novus Energy technical team — manifold manufacturing and metering systems. For size and capacity verification: WhatsApp or +90 216 642 42 66.