PVC Pipe & Fittings
Industrial-Grade PP-R Piping Systems for Critical Infrastructure & Commercial Plumbing
We manufacture high-performance PP-R piping systems and fittings for potable water distribution, commercial plumbing, HVAC, and industrial applications.
With controlled raw material selection, advanced extrusion technology, precision injection molding, and strict quality inspection procedures, we provide reliable piping solutions for distributors, contractors, and engineering companies worldwide.
-
UPVC Water Supply PipeShanxi Kaisheng Plastic Co., Ltd. manufactures UPVC Water Supply Pipe for municipal water distribution, agricultural irrigation, industrial water transmission, and commercial building systems....read more
-
12 Inch Corrugated Drain Pipe12 Inch Corrugated Drain Pipe is an HDPE double-wall drainage pipe for commercial, municipal, agricultural and infrastructure projects, including stormwater conveyance, road culverts, agricultural...read more
-
40mm Plumbing Material PVC Pipe Fittings40mm Plumbing Material PVC Pipe Fittings are supplied for plumbing distributors and project suppliers serving water supply, agricultural irrigation, swimming pools, water treatment, and drainage...read more
-
PVC 316 Spiral Pipe Connection AccessoriesPVC 316 Spiral Pipe Connection Accessories are manufactured by Shanxi Kaisheng Plastic Co., Ltd. for connecting PVC spiral steel wire reinforced hoses in industrial fluid transfer, petrochemical,...read more
-
PVC Perforated Drain PipePVC Perforated Drain Pipe for wholesale and engineering projects, used in agricultural drainage, foundation drainage, landscaping, and civil works. Made from virgin PVC-U with perforated openings...read more
-
6 Inch Drainage Pipe FittingsShanxi Kaisheng Plastic Co., Ltd. supplies 6 Inch Drainage Pipe Fittings for commercial building drainage, municipal stormwater, wastewater, and agricultural drainage systems. The fittings are...read more
-
Equal Diameter TeeEqual Diameter Tee is a CPVC/PVC pipe fitting used to connect three pipes of the same nominal diameter and create a 90° branch. It supports water supply, drainage, and utility piping systems where...read more
-
PVC Culvert PipePVC Culvert Pipe is a PVC-U double-wall corrugated drainage pipe for road drainage, municipal stormwater systems, agricultural drainage, and underground culvert projects.read more
-
PVC Pipe Fittings Nbr5648PVC Pipe Fittings Nbr5648 are PVC-U fittings for cold-water supply systems, supplied to distributors, plumbing contractors, and building material wholesalers. Referenced to ABNT NBR 5648, they are...read more
-
PVC Pipe Fittings Nbr5688PVC Pipe Fittings Nbr5688 are PVC-U connection fittings for building drainage, soil and waste discharge, rainwater, and gravity-flow piping systems. Designed for use with compatible PVC pipes,...read more
-
PVC Standard Water Supply FittingsPVC Standard Water Supply Fittings are used for pressurized water supply, municipal water distribution, agricultural irrigation and related piping systems. The range includes 90° elbows, 45°...read more
-
PVC Standard Drainage FittingsPVC Standard Drainage Fittings are used in building drainage, soil and waste, wastewater discharge and rainwater systems. The fittings are made from PVC-U by injection molding and cover...read more
Complete PP-R Piping System Solutions
|
Product Series |
Material Structure |
Pressure Class |
Size Range |
Applications |
|
Standard PP-R Cold Water Pipe |
100% Virgin Type 3 PP-R |
PN10 / SDR11 |
DN20-DN160mm |
Cold water supply, potable water distribution |
|
Standard PP-R Hot Water Pipe |
Heavy-wall Type 3 PP-R |
PN20 / SDR6 |
DN20-DN160mm |
Hot water circulation, heating systems |
|
FR-PPR Composite Pipe |
Glass fiber reinforced PP-R multilayer structure |
PN16-PN20 |
DN20-DN110mm |
High-rise buildings, HVAC risers |
|
Alu-PPR Stabilized Pipe |
Aluminum oxygen barrier layer |
PN20 |
DN20-DN63mm |
Outdoor plumbing, HVAC cooling systems |
|
Antibacterial PP-R Pipe |
Functional antimicrobial inner layer |
PN20 |
DN20-DN63mm |
Hospitals, clean water systems |
Why Choose Our PP-R Piping Systems
Complete System Supply
We provide pipes, fittings, valves, and customized components from one manufacturing source, reducing supplier coordination costs.
Flexible OEM Capability
From private labeling to customized fittings, we support distributors and brand owners with flexible manufacturing solutions.
Export-Oriented Service
Professional packaging, documentation support, and international shipment preparation help simplify global procurement.
Integrated Socket Fusion Fittings & Mechanical Adapters
Homogeneous Fittings
Couplings, 45°/90° elbows, equal/reducing tees, caps, and end plugs (DN 20mm – 160mm).
Dezincification-Resistant (DZR) Metal Transitions
Female/male threaded elbows, tees, and union adapters incorporating CW617N / DZR brass inserts with multi-ribbed anchoring profiles.
Valves & Control Components
Integrated PP-R stop valves, ball valves, and concealed globe valves designed for direct heat-fusion jointing.

Engineering Applications
Residential & Commercial Plumbing Systems
Suitable for:
- Drinking water distribution
- Hot and cold water supply
- Residential buildings
- Hotels
- Commercial facilities
HVAC and Heating Systems
Fiber reinforced PP-R pipes help improve dimensional stability in:
- High-rise buildings
- Heating networks
- Cooling water circulation systems
Industrial Fluid Transportation
PP-R materials provide good resistance against many chemical substances, making them suitable for selected industrial applications involving:
- Acid solutions
- Alkaline fluids
- Industrial water systems

100% Pure Virgin Resin Commitment
We do not use recycled regrind, off-spec materials, or fillers. Every production run utilizes virgin Polypropylene Random Copolymer:
- Borealis RA130E (Austria)
- Hyosung R200P (South Korea)
- Machinery & Production Parameters
Extrusion Lines: KraussMaffei high-speed extrusion units equipped with gravimetric dosing systems and automated ultrasonic wall-thickness monitors.
Injection Molding Units: High-precision ENGEL molding machines utilizing multi-cavity hot-runner tooling to produce void-free, stress-free pipe fittings.
Concentricity Control: Automated laser monitoring maintains pipe ovality and wall symmetry within ±0.02mm across all pressure classes.
Quality Control & Testing Procedures
Dimensional Accuracy Inspection
Pipe diameter, wall thickness, and concentricity are monitored during extrusion to maintain stable product dimensions.
Thermal Performance Testing
Material thermal stability is evaluated through laboratory testing to ensure processing quality and long-term performance.
Pressure and Connection Testing
PP-R fittings with brass inserts undergo pressure testing and mechanical verification to ensure reliable connections during installation.
Technical Comparison: Industrial PP-R vs. Standard Market Alternatives
|
Performance Metric |
Premium Industrial PP-R System |
Low-Grade / Recycled PP-R Alternatives |
Impact on Piping Infrastructure |
|
Raw Material Source |
100% Virgin Korean/European Resin |
Unverified Blend / Post-Industrial Regrind |
Prevents stress cracking and thermal pipe burst |
|
Threaded Insert Metal |
CW617N / DZR Brass (Heavy Wall) |
Standard Recycled Brass (High Zinc Content) |
Eliminates dezincification corrosion and thread shearing |
|
Inner Surface Roughness |
K=0.007mm |
k≥0.05mm |
Minimizes pump head loss; prevents bio-film buildup |
|
Low-Temp Impact Limit |
0 ℃Verified Impact Resistance |
Prone to cracking below 10℃ |
Prevents transit and installation damage in cold regions |
|
Expected Operational Life |
50+ Years at continuous design load |
<10 Years under thermal stress |
Ensures long-term operational integrity |
OEM PP-R Pipe Manufacturing Services
Custom Product Development
Our engineering team supports customized PP-R solutions based on customer requirements, including:
- Special dimensions
- Customized colors
- Branding requirements
- New fitting designs
Private Label Production
We provide OEM services for distributors and wholesalers:
- Custom laser marking
- Customer logo printing
- Customized packaging
- Retail-ready product solutions
Packaging, Export Logistics & Container Optimization
Pipe Packing
UV-stabilized heavy-weave polybags wrapped around pipe bundles, reinforced with end-cap protectors to maintain cleanliness and structural integrity.
Fitting Packing
Double-walled 5-ply heavy corrugated cartons lined with moisture-barrier PE bags, palletized on heat-treated ISPM-15 compliant wooden or plastic pallets.
Container Optimization
Automated 3D cargo loading models maximize volume utilization in 20ft GP and 40 ft HQ containers, preventing load shifting and lowering freight costs per unit.
Documentation Support
Rapid issuance of Commercial Invoice, Packing List, Bill of Lading, Certificate of Origin (Form E, Form F, CO), SASO, and third-party inspection certifications (SGS, Intertek, TÜV).
Technical FAQ
Q: What specific raw material grades are used in your PP-R pipes, and can you provide MTRs?
A: We exclusively process Borealis RA130E (PP-R Type 3) and Hyosung R200P. Mill Test Reports (MTRs) and batch-specific Material Test Certificates (MTC) detailing Melt Flow Index (MFI) and density are provided with every shipment.
Q: How do your PP-R fittings prevent leaks at the brass-to-plastic transition points?
A: Our brass inserts are machined from CW617N / DZR dezincification-resistant brass with a deep, multi-grooved knurling profile. During injection molding, the molten PP-R completely encapsulates these anchoring ribs, creating a mechanical lock that withstands high installation torque and thermal expansion cycles without separating.
Q: What is the minimum order quantity (MOQ) for private-label OEM manufacturing?
A: For standard pipes in stock colors, the MOQ is 2,000 meters per size. Custom RAL color runs and continuous laser private-label branding require a minimum run of 10,000 meters for piping and 200 master cartons per individual fitting mold.
Q: Do you use recycled materials in PP-R pipes?
A: For pressure-rated PP-R pipes, we focus on using virgin PP-R raw materials to maintain consistent mechanical properties and long-term performance.
Q: How long is the expected service life of your PP-R piping systems?
A: When properly designed, installed, and operated within recommended conditions, PP-R piping systems are generally designed for long-term service, commonly around 50 years under standard application conditions.
Q: How do you prevent leakage problems in PP-R fittings?
A: Reliable PP-R connections depend on both fitting design and manufacturing precision. Our fittings are produced with controlled molding processes, and threaded transition fittings use reinforced brass insert structures designed to improve mechanical bonding between metal and PP-R materials.
Q: What is your production capacity for large PP-R pipe orders?
A: Our production capability supports both standard distribution orders and large-volume engineering projects.
With professional extrusion and injection molding equipment, we provide stable production for:
Bulk PP-R pipe orders
Complete pipe and fitting system supply
Distributor inventory programs
OEM private label projects
Production schedules are planned according to product specifications, order quantities, and customization requirements to ensure reliable delivery.
Q: Do you support distributors building their own PP-R brand?
A: Yes. We provide OEM and private label manufacturing services for distributors, wholesalers, and plumbing brands.
Our support includes:
Custom pipe marking with customer logos
Customized product colors
Private label packaging
Product specification customization
New fitting development
By working directly with a PP-R manufacturer, distributors can develop differentiated products while maintaining consistent quality and supply stability.
Q: How do you ensure stable supply for long-term cooperation?
A: We focus on production consistency, quality control, and supply chain reliability to support long-term partnerships.
Our approach includes:
Controlled raw material sourcing
Standardized production processes
Batch traceability
Regular quality inspections
Production planning based on customer demand
This helps distributors and project contractors maintain stable product availability for ongoing market development.
Q: Can you provide technical support for PP-R system installation?
A: Yes. We provide technical support related to product selection, system configuration, and installation requirements.
Support may include:
Product specification recommendations
Pipe and fitting matching guidance
Fusion connection recommendations
Application selection support
For large projects, our team can review technical requirements and recommend suitable PP-R system solutions.
Q: Do you supply complete PP-R piping systems or only pipes?
A: We supply complete PP-R piping system solutions, including pipes, fittings, valves, and customized components.
A complete system supply approach helps customers:
Ensure pipe and fitting compatibility
Reduce supplier coordination
Simplify procurement management
Improve installation efficiency
This makes us a suitable partner for distributors, contractors, and engineering projects requiring reliable PP-R solutions.
Shanxi Kaisheng Plastic Co., Ltd. is one of the most professional PVC pipe & fittings manufacturers and suppliers in China, featured by quality products and good price. Welcome to buy durable PVC pipe & fittings made in China here and get quotation from our factory. We also accept customized orders.
PVC 316 Spiral Pipe Connection Accessories, PVC Standard Drainage Fittings, 3 Pvc Expansion Coupling