Your one-stop manufacturer for plastic pipe fittings.

Your Trusted Supplier for Plastic Pipe Fittings

NINGBO SALVADOR specializes in the supply of high-quality plastic valves, plastic piping, and plastic fittings. Located in China, our manufacturing facility adheres to international standards including ANSI, BS, DIN, ISO, and China’s GB, as well as customized specifications from our clients.

Our products have gained global reach, serving various industries such as water supply, drainage, irrigation, water treatment, chemicals, pharmaceuticals, and pipeline transportation.

Partner with us for reliable, industry-compliant plastic valve and piping solutions.



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Material Classification of Plastic Pipe Fittings

Plastic pipe fittings are offered in a diverse range of materials, each exhibiting distinct and specific attributes. Among the well-known materials are PVC, CPVC, HDPE, PP, PPH, and PVDF.

The choice of material plays a pivotal role and is often guided by several critical factors. The nature of the application itself holds significant sway, as different materials may excel in varying conditions. Furthermore, considerations like temperature resistance, both high and low, are crucial in determining the optimal material for a given scenario. Equally vital is assessing the compatibility of the chosen material with the chemicals and substances it will encounter in its intended environment.

Hence, the selection process for the appropriate plastic pipe fitting material involves a comprehensive analysis of these multifaceted elements, ensuring the utmost functionality, durability, and safety for the specific application at hand.

Common Plastic Pipe Fitting Standards

PVC PN10 Water Supply Fittings

Standard:DIN 8063

PVC Rubber Ring Joint Fittings

Standard:ISO 4435,DIN8063

PVC BS Thread Fittings


PP Compression Fittings

Standard:ISO 14236, ISO 15874

HDPE Fittings

Standard:ISO 4427,EN 12201,GB/T 13663

PPR Fittings

Standard:SO 15874,DIN 8077/8078,GB/T 18742.3-2017

PVC PN16 Fittings

Standard:GB/T 4219.1-2008

PVC SCH80 Fittings

Standard:ASTM D1785

CPVC ASTM2846 Fittings

Standard:ASTM 2846

CPVC SCH80 Fittings

Standard:ASTM F441/F441M

CPVC PN16 Fittings

Standard:EN ISO 15877
Upvc pipe fittings for domestic water supply

PVC SCH 40 Drainage Fittings

Standard:ASTM D1785 ,ASTM D2665

PVC Australian Standard Drainage Fittings

Standard:AS/NZS 1260:2017

PPH Fittings

Standard:QB/T 5099.1-2017,ISO 15874,DIN 8077/8078

PVDF Fittings

Standard:DIN 8085,GB/T 18742.2-2017 ,HG/T 21564-2006 ,DIN 16962, ISO 10931 ASTM D3222,CJ/T 272-2017

Max Temperatures and Uses of Pipe Fittings: Quick Guide

The maximum operating temperature and applications of pipe fittings vary depending on the material used. Here's a concise guide tailored for clients:

PVC (Polyvinyl Chloride) Fittings

  • Max Temperature: Up to 122°F (50°C)
  • Applications: Residential plumbed water supply, irrigation, sewer lines, swimming pools, low-pressure industrial processes

CPVC (Chlorinated Polyvinyl Chloride) Fittings

  • Max Temperature: Up to 181°F (83°C)
  • Applications: hot water supply, chemical treatment, sewage system

HDPE (High-Density Polyethylene) Fittings

  • Max Temperature: Up to 180°F (82°C)
  • Applications: Water and gas distribution, sewage systems

PP (Polypropylene) Compression Fittings

  • Max Temperature: Up to 212°F (100°C)
  • Applications: Irrigation System

PPR (Polypropylene) Fittings

  • Max Temperature: Up to 158°F (70°C)
  • Applications: residential hot and cold water, and heating systems

PPH (Polypropylene Homopolymer) Fittings

  • Max Temperature: Up to 194°F (90°C)
  • Applications: metallurgy, chemical industry, sewage treatment, electronic semiconductor, environmental medicine

PVDF (Polyvinylidene Fluoride) Fittings

  • Max Temperature: Up to 284°F (140°C)
  • Applications: sewage treatment, mineral slurry, chemical agent, high purity system
PVC Raw Material Granules

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Comprehensive Installation Guidelines for Diverse Plastic Pipe Fitting Materials

Understanding the complexities of material properties and temperature-pressure dynamics is unquestionably vital. However, these factors represent only a portion of the comprehensive equation that leads to success in plastic piping systems.

For optimal performance, an equal amount of attention must be devoted to the following aspects:

Meticulous Installation: Incorrect or careless installation can negate the benefits of even the best materials. Proper alignment, sealing, and securement are essential steps that require skilled technicians and adherence to manufacturer guidelines.

Rigorous Operational Guidelines: Following established best practices for operation and maintenance is crucial. This includes regular inspections for wear and tear, timely replacement of faulty components, and monitoring for pressure and flow rate consistency.

By ensuring both material quality and operational excellence, we can truly unlock the full potential of plastic piping systems.

Important Note for Installation: Pipe Outer Diameter Must Align with Fitting Inner Diameter

CPVC fittings drawing

Installation methods of pipe fittings made of different materials

Material Connection Method Sealing Method
PVC Special Glue or Thread Rubber ,Glue or Thread
CPVC Special Glue or Thread Glue or Thread
HDPE Socket, Hot Melt ,Electric Fusion Rubber,Thread
PP Socket or Thread Rubber+Thread
PPR Hot Melt
PPH Butt Welding
PVDF Butt Welding

Key Considerations for Pipe Fitting Installation

Material Compatibility: Ensure that the materials of the pipes and fittings are compatible and suitable for the intended application.

Temperature and Pressure Ratings: Make sure the fittings can withstand the operational temperature and pressure of the system.

Alignment: Proper alignment between pipes and fittings is crucial for preventing leaks and ensuring optimal flow.

Sealing: Use appropriate sealing methods, such as thread sealants or gaskets, to prevent leaks.

Torque Specifications: Follow manufacturer guidelines for tightening threaded fittings to the correct torque.

Support and Anchoring: Provide adequate support to prevent sagging, vibration, or movement that could stress the fittings.

Inspection: Conduct a thorough pre-installation and post-installation inspection to verify the integrity of the fittings and the overall system.

Safety Precautions: Always adhere to safety protocols, including the use of appropriate personal protective equipment (PPE).

Documentation: Keep a record of the installation process, including types of fittings used, torque settings, and any testing carried out.

Compliance: Ensure that the installation meets all applicable standards and regulations.

By paying attention to these key aspects, you can ensure a successful and reliable pipe fitting installation.

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The ULTIMATE Guide to plastic valves pipe fittings in China 2024

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