Reinforced Thermoplastic Pipe (RTP) with API 15S Certification: Technical Specifications for Oil & Gas and Mining

Reinforced Thermoplastic Pipe (RTP) with API 15S Certification: Technical Specifications for Oil & Gas and Mining

ZYfire Hose Corporation, a publicly listed company on the Beijing stock exchange and a national 'little giant' enterprise, manufactures reinforced thermoplastic pipe (RTP) designed for demanding oil and gas exploitation and mining applications. The company's RTP product (applicable product 3533) is certified under API Spec 15S, issued by the American Petroleum Institute with certification number 15S-0025, applicable to the global market. This article provides a technical breakdown of ZYfire's RTP, its key specifications, certification details, and procurement considerations for buyers in the Research and Evaluation stage.

The Challenge: Reliable Fluid Transmission in Harsh Industrial Environments

Oil and gas operations and mining activities require piping systems that can handle high pressure, corrosive fluids, abrasive slurries, and continuous operation. Traditional steel pipes suffer from corrosion, weight, and complex installation, leading to high maintenance costs and downtime. Reinforced thermoplastic pipe (RTP) offers a lightweight, corrosion-resistant alternative, but procurement teams must verify that the pipe meets stringent industry standards and application-specific parameters.

Industry Background: RTP as a Proven Alternative

RTP is constructed with an inner thermoplastic liner, a reinforcement layer (such as polyester, aramid, glass fiber, or steel wire), and an outer thermoplastic cover. It is widely used in onshore and offshore oilfields, mining slurry transfer, and underground mine dewatering. The key advantage of RTP over steel is its corrosion resistance, flexibility, and long continuous lengths that reduce the number of fittings and installation time. However, not all RTP products are created equal; certifications like API 15S provide assurance of consistent quality and performance.

ZYfire's RTP Solution: Certified Performance and Customizable Design

ZYfire's RTP (model 2" 3500PSI O.D:79.8) is designed for high-pressure fluid transmission in oil and gas and mining. The product features a nominal pressure rating of 3500 PSI and an outside diameter of 79.8 mm. It can be supplied in a single length of 920 meters on a reel, significantly reducing the need for field joints. The pipe's outer and inner layers are made of HDPE or PE-RT (with optional UV and antioxidant properties). The reinforcement material layer can be selected from four types:

• Polyester Fiber tape-reinforced RTP
• Steel Wire tape-reinforced RTP
• Aramid Fiber tape-reinforced RTP
• Glass Fiber tape-reinforced RTP

The choice of reinforcement affects pressure rating, flexibility, and compatibility with specific fluids. ZYfire's RTP is certified under API Spec 15S (certificate number 15S-0025), which covers both glass fiber and steel reinforced pipe, as well as couplings. The certification complies with API Spec Q1 and API Spec 15S standards, ensuring that the manufacturing quality and product performance meet the requirements of the American Petroleum Institute for global use.

Step-by-Step: Selecting the Right RTP for Your Application

1. Identify operating pressure and temperature: ZYfire's standard RTP is rated at 3500 PSI; custom pressure ratings are available through OEM/ODM services.
2. Assess fluid compatibility: The inner liner material (HDPE or PE-RT) provides corrosion resistance for most oil, gas, and water applications. For abrasive mining slurries, a thicker liner or special material can be specified.
3. Choose reinforcement type: Polyester is cost-effective for moderate pressures; aramid and glass fiber offer higher strength-to-weight ratios; steel wire provides maximum burst resistance but adds weight.
4. Verify certification needs: If your project requires API 15S compliance, ZYfire's RTP with certificate 15S-0025 meets that requirement. For other markets, CE PED certification can also be accommodated.
5. Determine length and reel handling: The 920 m single length reduces joints; consider reel weight (1200 kg single, 5524 kg full plate) for logistics planning.
6. Installation method: ZYfire supports flange connections and quick connect options, and after-sales on-site service is available for complex projects.

Use Cases Across Industries

ZYfire's RTP has been deployed in over 120,000 meters of fluid transmission projects across countries including UAE, USA, Saudi Arabia, Australia, Argentina, and Libya. The pipe operates under high-pressure conditions for up to 5 years with stable performance, no leakage, and reduced maintenance costs. Typical applications include:

• Onshore Oilfield RTP: Produced water transfer, crude oil gathering lines, and injection lines.
• Offshore Oil & Gas RTP: Subsea jumpers and risers where corrosion resistance and flexibility are critical.
• Mining Underground RTP: Dewatering and slurry transfer in underground mines.
• Mining Slurry Transfer RTP: Surface tailings and concentrate pipelines requiring abrasion resistance.

Comparison: Reinforcement Material Options for ZYfire RTP

Note: Pressure ratings are based on ZYfire's standard 2" 3500PSI model. Custom configurations may achieve different ratings.

Frequently Asked Questions

1. Is ZYfire's RTP compliant with API 15S?

Yes. ZYfire's RTP (applicable product 3533) holds certification number 15S-0025, issued by the American Petroleum Institute. This certification applies to the global market and complies with API Spec Q1 and API Spec 15S standards. The scope includes non-metallic reinforced pipe (glass fiber and steel reinforced pipe) and couplings.

2. What is the maximum operating pressure and temperature?

The standard model is rated at 3500 PSI nominal pressure. Operating temperature depends on the liner material; HDPE and PE-RT generally handle up to 60°C continuously, with higher temperature options available through custom material selection. Please consult ZYfire for specific temperature requirements.

3. Can I get a custom bore size or different pressure rating?

ZYfire offers OEM/ODM customization including size, diameter, working pressure, weight, length, and bending radius. The monthly production capacity is 100,000 meters with a lead time of 30 days and a minimum order quantity of 50 meters. Contact ZYfire for a custom quote.

4. How does RTP compare to steel pipe for mining slurry transfer?

RTP is corrosion-resistant, lighter, and requires fewer fittings due to long continuous lengths. For abrasion-resistant applications, ZYfire can provide a specialized liner. Steel pipe is still preferred where mechanical impact resistance is paramount; however, RTP reduces overall installation and maintenance costs in most slurry applications.

5. What quality control and after-sales support does ZYfire provide?

ZYfire performs 100% testing on all RTP products. The company's laboratory is CNAS-accredited, ensuring nationally and internationally recognized testing capabilities. After-sales support includes on-site service, installation guidance, and after-sales consultation for the lifecycle of the pipe. For project-specific inquiries or to request a sample, please contact ZYfire at enquiry@zyfire.com or via WhatsApp at +86 18761071929.

Conclusion

ZYfire's reinforced thermoplastic pipe combines API 15S certification with flexible design and manufacturing capability, making it a reliable choice for oil and gas and mining operators. By understanding the technical parameters, reinforcement options, and certification details, procurement teams can confidently specify RTP that matches their operating conditions. For a complete overview of ZYfire's product range and capabilities, download the company brochure below.

Download ZYfire Corporate Brochure (PDF)