Table of Contents

1. Scope of Application
2. Basic System Data
3. Jiqing β-PPH Full Certification List
4. β-PPH Pipe Performance Indicators
5. Pressure, Temperature & Service Life of β-PPH
6. β-PPH Nominal Diameter Reference Chart
7. β-PPH Connection Technologies & Technical Parameters
8. β-PPH Quality Control & Traceability
9. Application Guidance
10. Appendix

This technical manual is compiled by Jiangsu Jiqing Pipe Group Co., Ltd. based on years of production management experience, raw material inspection standards and third-party test data. It unifies the selection criteria, construction specifications, quality inspection requirements and delivery standards for β-PPH pipes.

This manual applies to all β-PPH pipes, fittings and matched pipeline systems manufactured by Jiqing Group. It can be directly used for engineering design reference, bidding documents, on-site construction guidance, client acceptance and technical consultation.

1. Scope of Application

1.1 Applicable Media

• Inorganic acids: Hydrochloric acid, sulfuric acid, nitric acid, hydrofluoric acid.

• Alkalis: Sodium hydroxide, potassium hydroxide solutions.

• Salts: All kinds of salt solutions.

• Organic solvents: Partial alcohols and ketones (subject to actual working condition confirmation).

• High-purity water: Ultra-pure water delivery for electronics, new energy and semiconductor industries.

• Industrial wastewater: Waste liquid pipelines for chemical, metallurgical and electroplating industries.

1.2 Full Range of β-PPH System Products

Jiqing supplies complete β-PPH series products produced with identical batches of virgin β-PPH resin to guarantee consistent material performance across the whole pipeline system:

• β-PPH Pipes: PN2.5–PN16 pressure rating, DN15–DN1200 nominal diameter, one-piece extrusion molding.

• Injection-molded β-PPH fittings: Straight joints, elbows, flanges, tees, reducers, pipe caps and more.

• β-PPH Valves: Ball valves, butterfly valves, check valves, foot valves, globe valves, liquid level gauges.

• Custom β-PPH components & chemical storage tanks: Waste gas treatment equipment, pickling tanks, scrubbing towers.

1.3 Design Service Life Statement

The service life of Jiqing β-PPH pipes complies with standard QB/T5099.1-2017.

1.Long-term raw material performance

Tested by National Center for Chemical Building Materials Testing, Jiqing β-PPH resin achieves an oxidation induction time of 40.1 min at 210°C, melting peaks at 152°C & 170°C, and heat deflection temperature up to 108°C, delivering outstanding thermal stability and long-term anti-aging performance.

2.Industry standard basis

According to the β-PPH predicted strength reference curve specified in QB/T 5099.2-2017, the β-PPH pipeline system can reach the stated long service life under proper design, installation and operation.

3.Third-party product verification

Sampling tests by Jiangsu Provincial Product Quality Supervision & Inspection Institute confirm Jiqing β-PPH pipes pass the 95°C / 165h / 5.0MPa hydrostatic strength test, verifying reliable long-term load-bearing capacity under high temperatures.

2. Basic System Data

2.1 β-PPH Raw Material Specifications

2.1.1 Material Definition

Jiqing adopts isotactic polypropylene modified with beta crystal structure. Compared with standard α-PPH, it features superior impact resistance, thermal creep resistance and dimensional stability.

2.1.2 MRS Value

Calculated per ISO 9080 and QB/T 5099.1-2017 long-term hydrostatic strength standards, the Minimum Required Strength (MRS) of β-PPH reaches 10.0MPa for a 50-year service life at 20°C.

2.1.3 Raw Material Source & Regulation

Jiqing only purchases virgin β-PPH resin from well-known domestic petrochemical manufacturers, with strict batch inspection for all incoming materials.

We fully comply with QB/T 5099.1-2017 and QB/T 5099.2-2017: No recycled or blended materials are permitted in production. All Jiqing β-PPH products are made of 100% virgin homopolymer polypropylene to secure system durability and medium safety.

2.2 β-PPH Raw Material Characteristic Table

表格

2.3 Jiangsu Jiqing Group β-PPH Raw Material Testing Standards

表格

3. Jiqing β-PPH Full Certification List

Jiqing Group holds the following authoritative certificates to guarantee reliable product quality:

1.Work Safety Standardization Certification

Certificate No.: Su ZAQ-III-202112066

Issuer: Zhenjiang Work Safety Association, Supervised by Zhenjiang Emergency Management Bureau

Grade: Level 3 Standardized Work Safety Enterprise (Light Industry)

2.Special Equipment Manufacturing License

Certificate No.: TS2732L44-2028

Issuer: Jiangsu Provincial Administration for Market Regulation

Approved Scope: Pressure pipeline component manufacturing

3.Special Equipment Type Test Certificate (Pressure Pipeline Components)

Certificate No.: TSX 71000620240391

Issuer: National Center for Chemical Building Materials Testing (SINOPEC Beijing Research Institute of Chemical Industry)

Product: Industrial beta-crystal homopolymer polypropylene (β-PPH) pipe

Compliance Standard: TSG D7202-2023

4.Special Equipment Type Test Report for β-PPH Pipes

Report No.: 2024(G)J11178

Testing Institute: National Center for Chemical Building Materials Testing

Product Spec: dn110 grey β-PPH industrial pipe

5.Drinking Water Sanitation Safety Test Report for β-PPH Pipes

Sample No.: (Huan Shui)20260063

Testing Institute: Jiangsu Provincial Center for Disease Control and Prevention

Testing Standard: GB/T5750-2023

Evaluation Standard: Hygienic Safety Evaluation Specifications for Drinking Water Distribution Equipment (2001)

Test Conclusion: All 19 test indicators including chroma, turbidity, heavy metals and organic solvents fully meet drinking water pipeline requirements, all items qualified.

6.ISO 9001 Quality Management System Certification

Registration No.: 00524Q01505R0M

Standard: GB/T19001-2016 / ISO9001:2015

Scope: Production of PP, PPH, FRPP and other non-metallic plastic pipes & fittings

Certification marks: IAF, CNAS

7.ISO 14001 Environmental Management System Certification

Registration No.: 00524E00659R0M

Standard: GB/T24001-2016 / ISO14001:2015

Scope: Manufacturing of plastic pipes and fittings

Certification marks: IAF, CNAS

8.ISO 45001 Occupational Health & Safety Management System Certification

Registration No.: 00524S00299R0M

Standard: GB/T45001-2020 / ISO 45001:2018

Scope: Production of non-metallic pipeline products

Certification marks: IAF, CNAS

Important Statement

All certificates and test reports above are exclusive qualifications of Jiangsu Jiqing Pipe Group Co., Ltd., only proving our own production permission and quality control capacity. We make no representation regarding qualifications of other manufacturers. Clients shall independently verify supplier credentials during material selection.

4. β-PPH Pipe Performance Indicators

Third-party testing by Jiangsu Provincial Product Quality Supervision Institute proves Jiqing β-PPH pipes fully exceed all performance requirements specified in QB/T 5099.1-2017.

表格

5. Pressure, Temperature & Service Life of β-PPH

5.1 Hydrostatic Strength Test Principle

The long-term strength of β-PPH pipes declines as operating temperature rises. By applying graded hydrostatic stress at different temperatures and recording time-to-failure data, we can predict the service life under specific temperature and pressure conditions.

5.2 Hydrostatic Strength Test Overview

Jiqing completed multiple burst and pressure holding limit tests on DN100, 1.0MPa, 10mm wall thickness β-PPH pipes with professional hydrostatic testing equipment. Key measured data are summarized below.

表格（测试表格）

5.3 Data Interpretation & Engineering Guidance

(1)Significant temperature impact on pressure resistance: The burst pressure of β-PPH drops from 5.3MPa at room temperature to 2.2MPa under high temperature, which validates the temperature-pressure reduction curve in QB/T 5099.2-2017. For systems operating above 60°C, engineers must apply corresponding reduction factors during design and pipe selection.

表格（折减系数）

(2) Reliable long-term hydrostatic performance: At 95°C, Jiqing β-PPH pipes withstand 1.1MPa (higher than rated 1.0MPa) with zero leakage for 20 continuous hours, proving stable performance under normal operating fluctuations.

6. β-PPH Nominal Diameter Reference Chart

Jiqing β-PPH pipes strictly comply with QB/T 5099.1-2017. The standard SDR (Standard Dimension Ratio) and nominal pressure corresponding to each outer diameter are listed in the attached table.

表格（PPH管件公称表）

Note: Nominal pressure PN is rated for water media at 20°C. Working pressure must be reduced with higher temperature or corrosive media.

7. β-PPH Connection Technologies & Technical Parameters

Three reliable connection methods are available for Jiqing β-PPH pipeline systems, selected according to pipe diameter, construction conditions and design standards:

7.1 Socket Welding (Extrusion Welding Rod)

• Applicable Size: DN100 and above large-bore pipes

• Tools: Hot air welder + dedicated β-PPH welding rod

• Working Principle: Heat the socket and spigot surfaces, melt matching β-PPH welding rod to fill the joint for fusion integration

• Advantages: Flexible for field installation, low precision requirement for pipe end machining; weld rod matches pipe material to guarantee equal joint strength; ideal for renovation and complex routing pipelines

• Operation Tips: Remove oil and oxidation layers before welding; maintain stable hot air temperature; cool fully before inspection for air holes or cracks

7.2 Hot Melt Welding

• Applicable Size: DN100 and below small-bore pipes

• Constant Welding Temperature: 270°C

• Working Principle: Simultaneously heat pipe spigot and fitting socket with a dedicated fusion machine, insert uniformly under pressure and cool to form an integrated joint

• Advantages: Fast, simple mass construction; high joint strength without extra filler materials

• Operation Tips: Keep pipes aligned horizontally during welding; avoid rotation during insertion; allow natural full cooling before commissioning.

7.3 Butt Weld Connection

• Applicable Size: Full product range DN15~DN1200

• Constant Welding Temperature: 220°C

• Working Principle: Heat the flat end faces of two pipes/fittings to melting state, press together under controlled pressure to form a seamless continuous pipeline

• Advantages: Excellent overall joint strength with no extra materials; perfect for long straight main pipelines

• Operation Tips: Keep pipe ends flat and clean; maintain welding pressure until complete natural cooling

8. β-PPH Quality Control & Traceability

8.1 Full Online Production Monitoring

Jiqing’s β-PPH production lines adopt end-to-end real-time monitoring systems for core quality control nodes:

• Extrusion process: Real-time tracking of melt temperature, extrusion pressure and traction speed to stabilize pipe dimensions

• Wall thickness scanning: Continuous thickness measurement to guarantee tolerance compliance

• Surface defect inspection: Real-time detection of bubbles, cracks and impurities

• Laser coding linkage: Batch information printed directly on pipes for full traceability

8.2 Laser Coding Marking on Pipe Surface

Every β-PPH pipe is laser marked before delivery. Take dn110×15.2 SDR7.4 PN1.6 pipe as an example:

• Production enterprise logo: Corresponding to Jiangsu Jiqing Pipe Materials Group Co., Ltd. To ensure traceability of product origin

• Product name: PPH pipe

• Nominal outer diameter × Nominal wall thickness: dn110*15.2, where dn is the nominal outer diameter (mm) and en is the nominal wall thickness (mm)

• SDR: Standard size ratio, SDR = dn / en, the smaller the value, the greater the wall thickness and the higher the pressure-bearing capacity

• PN: Nominal pressure (MPa), the design pressure level based on water medium at 20℃

• Execution standard: QB/T5099.1-2017, representing the national/industry standard number for pipe manufacturing and inspection

• Production date: 2025/11/19

Each batch code can be matched with production logs, raw material batch numbers and online inspection records. Clients may apply for factory test reports and raw material certificates by providing the pipe surface coding information, realizing full-chain traceability from resin to finished pipes.

8.3 Delivery Document Package

Three official documents are attached to every shipment:

(1)Product Quality Specification Sheet

Includes product name, specs, batch number, production date, full test data of the batch, sealed with Jiqing quality inspection stamp.

(2)β-PPH Product Certificate

Marks product name, specifications, quantity, execution standard HG/T20539-92, inspector signature and quality seal.

(3)Raw Material Test Report

Duplicate of third-party test report issued by National Center for Chemical Building Materials Testing (Report No.2024(G)10102).

9. Application Guidance

9.1 Applicable Industries

With outstanding chemical resistance, high temperature tolerance and impact toughness, β-PPH pipeline systems are widely used in:

• Chemical industry: Acid, alkali and salt medium transportation, process piping

• New energy industry: Lithium battery electrolyte delivery, PV chemical supply lines, energy storage cooling circulation systems

• Electronics industry: High-purity water delivery, wet process pipelines

• Pharmaceutical industry: Purified water systems, liquid medicine transfer pipelines

• Environmental protection industry: Wastewater treatment, scrubber piping

• Metallurgy industry: Pickling tank piping, electrolyte delivery

• Food industry: Food-grade liquid transportation (subject to drinking water sanitation approval scope)

• Paper & printing: Pulp delivery, chemical additive circulation, wastewater recovery

• Municipal water supply: Drinking water distribution (permitted within sanitation certificate scope)

9.2 Unsuitable Working Conditions Warning

β-PPH pipes are not recommended for the following scenarios without special evaluation and protective measures:

• Strong oxidizing media: Long-term exposure to hot concentrated nitric acid, concentrated sulfuric acid requires dedicated corrosion resistance testing

• Strong organic solvents: Aromatic hydrocarbons, chlorinated solvents and ketones (benzene, toluene, acetone, carbon tetrachloride) may cause swelling or dissolution

• Continuous over-temperature operation: Long-term service above 90°C drastically reduces pressure bearing capacity; higher temperature resistant materials are recommended

• Media with hard sharp particles: High-flow fluid containing abrasive particles may wear inner walls; reduce flow velocity or add abrasion-resistant lining

• Long-term outdoor exposure without UV protection: Unmodified β-PPH is not UV-stable; shading or cladding protection is mandatory for outdoor installation

10. Appendix

10.1 Full Specification PDF Download Guide

Complete electronic β-PPH technical manual (PDF) is available for download on Jiqing official website:

(1)Visit official site: www.jiqing-pipe.com

(2)Navigate to the Download Center page

(3)Select the target file for download

10.2 Glossary of Technical Terms

表格（符号表格）