TDR Forza Flow® HDPE pressure pipe is a leading solution for water service, agricultural systems, landscape irrigation, and potable water distribution. Manufactured from PE4710 high-density polyethylene (HDPE), it combines lightweight handling, exceptional chemical resistance, and long-term durability — making it the ideal choice for demanding infrastructure and water conveyance applications. It is available in two dimensional systems: the Forza Flow CTS Series and the Forza Flow IPS Series.
What Is TDR Forza Flow® HDPE Pressure Pipe?
TDR Forza Flow® is an HDPE pressure pipe made from PE4710 bimodal resin — a high-performance high-density polyethylene (HDPE) that balances pressure capacity, flexibility, and long-term stress resistance. Every size is NSF 61 certified for use in potable water systems.
Built to withstand vibration, UV exposure, surface loads, and pressure surges, Forza Flow performs reliably in seismic and exterior installations. It is offered in two series so it drops cleanly into whichever fitting and tooling standard your project already uses:
- Forza Flow CTS Series — Copper Tube Size, with an outside diameter that matches copper tubing. Built per ASTM D2737 and AWWA C901. Sizes 3/4″ through 2″.
- Forza Flow IPS Series — Iron Pipe Size, with an outside diameter based on iron pipe dimensions. Built per ASTM D3035 and AWWA C901. Sizes 3/4″ through 3″.
Why Choose TDR Forza Flow®?
✓ PE4710 Performance
Bimodal high-density resin with a 1,600 psi hydrostatic design basis, NSF 61 certified for potable water — strength and safety in a single material.
✓ Built for the Elements
Resists UV, impact, and chemical attack while absorbing vibration, surface loads, and pressure surges — dependable in seismic and above-grade service.
✓ Leak-Free Joints
Butt fusion, electrofusion, or mechanical compression joining creates a monolithic, fitting-free system that minimizes internal diameter restriction.
✓ Lightweight & Flexible
Supplied in coils up to 500 ft (IPS), cutting joints, speeding installation, and lowering handling and transport costs in the field.
TDR Forza Flow in Action
Technical Specifications
All pressure classes are stated for water at 73 °F (23 °C). Pressure ratings decrease above 80 °F (27 °C); the pipe performs up to 140 °F (60 °C) in pressure service, with intermittent exposure up to 180 °F (82 °C) for gravity-flow or short-term applications. Material grade: PE4710 HDPE, NSF 61 certified.
| Nominal | OD | RD 7.3 — 315 psi (2.17 MPa) | RD 9 — 250 psi (1.72 MPa) | RD 11 — 200 psi (1.38 MPa) |
|---|---|---|---|---|
| 3/4″ | 0.875″ (22.23 mm) | 0.120″ (3.05 mm) | 0.097″ (2.46 mm) | 0.080″ (2.03 mm) |
| 1″ | 1.125″ (28.58 mm) | 0.154″ (3.91 mm) | 0.125″ (3.18 mm) | 0.102″ (2.59 mm) |
| 1 1/4″ | 1.375″ (34.93 mm) | 0.188″ (4.78 mm) | 0.153″ (3.89 mm) | 0.125″ (3.18 mm) |
| 1 1/2″ | 1.625″ (41.23 mm) | 0.233″ (5.92 mm) | 0.181″ (4.60 mm) | 0.148″ (3.76 mm) |
| 2″ | 2.125″ (53.98 mm) | 0.291″ (7.39 mm) | 0.236″ (5.99 mm) | 0.193″ (4.90 mm) |
| Nominal | OD | RD 7 — 333 psi (2.30 MPa) | RD 9 — 250 psi (1.72 MPa) | RD 11 — 200 psi (1.38 MPa) |
|---|---|---|---|---|
| 3/4″ | 1.050″ (26.70 mm) | 0.150″ (3.81 mm) | 0.117″ (2.97 mm) | 0.095″ (2.41 mm) |
| 1″ | 1.315″ (33.40 mm) | 0.188″ (4.78 mm) | 0.146″ (3.71 mm) | 0.120″ (3.05 mm) |
| 1 1/4″ | 1.660″ (42.20 mm) | 0.237″ (6.02 mm) | 0.184″ (4.67 mm) | 0.151″ (3.84 mm) |
| 1 1/2″ | 1.900″ (48.30 mm) | 0.271″ (6.88 mm) | 0.211″ (5.36 mm) | 0.173″ (4.39 mm) |
| 2″ | 2.375″ (60.30 mm) | 0.339″ (8.61 mm) | 0.264″ (6.71 mm) | 0.216″ (5.49 mm) |
| 3″ | 3.500″ (88.90 mm) | 0.500″ (12.70 mm) | 0.389″ (9.88 mm) | 0.318″ (8.08 mm) |
IPS supplied in 100, 200, 300, and 500 ft coils.
CTS vs. IPS: Choosing the Right Series
Both series are the same material and the same pressure system — what changes is the outside diameter (OD) standard the pipe is built to. That single difference decides which fittings and fusion tooling will mate with it.
| Aspect | Forza Flow CTS Series | Forza Flow IPS Series |
|---|---|---|
| OD basis | Matches copper tubing OD | Matches iron pipe (NPS) OD |
| Size range | 3/4″ – 2″ | 3/4″ – 3″ |
| Standards | ASTM D2737 · AWWA C901 | ASTM D3035 · AWWA C901 |
| Pressure classes | 200 / 250 / 315 psi (RD 11 / 9 / 7.3) | 200 / 250 / 333 psi (RD 11 / 9 / 7) |
| Fittings | Copper-compatible compression + fusion | IPS fusion + mechanical |
| Typical use | Service lines & connections | Distribution & higher-flow mains |
⚠ Specify the sizing system — every time
A given nominal size does not share the same outside diameter across CTS and IPS. A 1″ CTS pipe (1.125″ OD) and a 1″ IPS pipe (1.315″ OD) are not interchangeable. Always match the sizing system across the pipe, the fittings, and the fusion tooling. Mismatching CTS and IPS is the single most common specification error in the field.
Engineer’s note: pressure follows the RD, not the sizing system
Pressure class depends on the pipe’s dimension ratio (RD) and resin — not on CTS vs IPS. That is why an RD 9 is rated 250 psi and an RD 11 is rated 200 psi in both series. Select the series for fitting compatibility; select the RD for the pressure you need.
Primary Applications for TDR Forza Flow®
Municipal & Potable Water
Residential and commercial drinking-water services and municipal service connections for water distribution, NSF 61 certified end to end. Corrosion immunity protects water quality across diverse water chemistries.
Agriculture & Ranch
Farm and ranch water supply, livestock lines, and long field runs where flexible coils cut installation time — a natural fit alongside our agricultural irrigation pipes.
Irrigation & Landscape
Pressurized irrigation and landscape drainage water conveyance that must survive UV exposure and surface loads in above-grade service.
Well & Pump Systems
Well and pump service where surge resistance and leak-free fused joints protect long-term reliability.
Why HDPE Outperforms Traditional Materials
Forza Flow HDPE vs. Traditional Service Materials
- vs. Copper Tube: No pitting or corrosion, lower material cost, fused leak-free joints, and flexibility that resists freeze damage.
- vs. PVC: Superior impact and surge resistance, better performance in cold climates, and monolithic fused joints instead of glued or gasketed connections.
- vs. Galvanized Steel: No rust, no scale build-up, far lighter handling, and no threaded joints to corrode or leak.
Installation and Joining
Forza Flow® can be joined by butt fusion, electrofusion couplings, or mechanical compression fittings, depending on site conditions. A broad range of CTS or IPS couplings — elbows, tees, reducers, couplings, and adapters — enables direction changes, branching, and diameter transitions while preserving system integrity and hydraulic performance. Butt fusion in particular minimizes internal diameter restriction and produces a chemical- and fitting-free connection.
Engineered to Industry Standards
- Material: PE4710 bimodal HDPE resin, meeting ASTM D3350 for pressure applications.
- Forza Flow CTS Series: ASTM D2737 · AWWA C901.
- Forza Flow IPS Series: ASTM D3035 · AWWA C901.
- NSF/ANSI 61: Certified for contact with potable water.
Ready to Specify TDR Forza Flow®?
Download the complete specification sheet to review sizing, pressure classes, and standards — or talk to our technical team about the right series for your project.
Download CTS Spec Sheet Download IPS Spec Sheet
