Top 10 Pipe Fittings Manufacturers & Suppliers in Korea 2026

Introduction

South Korea is one of Asia’s leading industrial economies, with strong demand for reliable piping systems in semiconductor manufacturing, chemical processing, water treatment, shipbuilding, construction, and industrial facilities.

Pipe fittings are essential components for connecting, controlling, and maintaining piping systems. Depending on the application, different materials are selected, including PVC, CPVC, PP, PPH, PE, PVDF, PFA, stainless steel, and alloy materials.

Plastic pipe fittings are especially popular in industries requiring corrosion resistance and high chemical compatibility, while metal pipe fittings are widely used in high-pressure and mechanical applications.

This article introduces the Top 10 Pipe Fittings Manufacturers & Suppliers in Korea (2026), including plastic piping manufacturers and industrial fitting suppliers serving the Korean market.

Top 10 Pipe Fittings Manufacturers & Suppliers in Korea

1. Huasheng Pipeline

Huasheng Pipe is a professional manufacturer specializing in plastic piping systems, PVC pipe fittings, and industrial valves.

The company provides complete thermoplastic piping solutions including:

• PVC Pipe Fittings

• CPVC Pipe Fittings

• PPH Pipe Fittings

• PE Fittings

• PVDF Fittings

• PFA Fittings

• Plastic Valves

Huasheng products are widely used in:

• Semiconductor manufacturing

• Chemical processing

• Water treatment

• High-purity piping systems

With advanced manufacturing technology and strict quality control, Huasheng provides reliable plastic piping solutions for customers worldwide, including the Korean market.

2. KUPP Co., Ltd.

KUPP is a Korean plastic piping manufacturer specializing in fluid transfer systems.

The company provides:

• UPVC Pipe Systems

• CPVC Pipe Systems

• PP-H Pipe Systems

• HDPE Pipe Systems

• Pipe Fittings

• Valves

KUPP products are used in:

• Semiconductor facilities

• Chemical plants

• Water treatment

• Industrial plants

KUPP has produced plastic piping systems since 1978 and provides integrated solutions including design, manufacturing, and installation.

3. Asung Plastic Valve Co., Ltd.

Asung Plastic Valve is a Korean manufacturer specializing in plastic valves and piping products.

The company provides products made from:

• UPVC

• CPVC

• PP

• PVDF

• Clean PVC

Its products are widely applied in:

• Semiconductor industry

• Chemical industry

• Water treatment

Asung has developed plastic piping solutions since 1967 and is recognized as a Korean supplier of plastic valves and piping components.

4. PPI Pipe

PPI Pipe is one of Korea’s recognized PVC pipe manufacturers.

The company focuses on PVC piping systems and fitting solutions for infrastructure and industrial applications.

Main products include:

• PVC Pipes

• PVC Fittings

• Large Diameter PVC Systems

Applications:

• Water supply

• Infrastructure

• Industrial projects

PPI Pipe has been developing pipe and fitting technologies in Korea for decades.

5. TK Bend

TK Bend provides pipe bending and fitting solutions for industrial applications.

Its products are used in projects requiring customized pipe components.

Main Products：

• Pipe Bends

• Industrial Fittings

• Customized Components

Applications：

• Plant construction

• Industrial equipment

6. AkorBend

AkorBend is a Korean manufacturer specializing in industrial butt weld pipe fittings.

Unlike plastic PVC fitting manufacturers, AkorBend focuses mainly on metal pipe fittings used in demanding industrial applications such as chemical plants, oil refineries, and power facilities.

The company provides precision-engineered fittings designed according to international standards.

Main Products：

• Butt Weld Fittings

• Elbows

• Pipe Bends

• Customized Fittings

Applications：

AkorBend products are widely used in:

• Chemical industry

• Oil and gas

• Power plants

• Industrial piping systems

With advanced manufacturing capabilities and strict quality control, AkorBend supplies industrial piping components for global customers.

7. S-Lok

S-Lok is a South Korean manufacturer specializing in tube fittings, valve fittings, and instrumentation components.

The company provides precision connection solutions for industries requiring reliable fluid control and leak prevention.

Main Products：

• Tube Fittings

• Valve Fittings

• Instrumentation Components

Applications：

• Semiconductor equipment

• Chemical processing

• Industrial machinery

• Hydraulic systems

S-Lok focuses on precision manufacturing and provides fitting solutions for demanding industrial environments.

8. KST3 (KS Fitting & Flange Co., Ltd.)

KST3 is a Korean manufacturer specializing in industrial pipe fittings, flanges, and valves.

The company provides piping components designed for demanding industries such as chemical processing, power generation, and industrial plants.

Main Products：

• Pipe Fittings

• Flanges

• Valves

• Customized Piping Components

Applications

• Chemical plants

• Industrial facilities

• Energy projects

KST3 focuses on producing reliable piping components for large-scale industrial applications.

9. SMT Eng

SMT Eng is a Korean manufacturer providing industrial pipe fittings, flanges, and ball valves.

The company supplies customized piping components for industries requiring reliable connection and flow control solutions.

Main Products：

• Pipe Fittings

• Flanges

• Ball Valves

Applications：

• Petrochemical industry

• Energy projects

• Shipbuilding

• Industrial plants

SMT Eng focuses on customized engineering solutions and industrial piping products.

10. JWM Fittings

JWM Fittings is a Korean pipe fitting manufacturer supplying fittings, valves, and flange products for industrial applications.

The company provides connection solutions for industries including chemical processing, water treatment, and industrial manufacturing.

Main Products：

• Pipe Fittings

• Valves

• Flanges

Applications：

• Chemical processing

• Industrial piping

• Water treatment

JWM Fittings focuses on providing reliable piping components for industrial projects.

How to Choose a Reliable Pipe Fittings Manufacturer

Material Compatibility

Select materials according to:

• Chemical properties

• Temperature requirements

• Working environment

Pressure Rating

Consider:

• Working pressure

• Temperature range

• Connection method

Quality Standards

Reliable manufacturers usually provide products according to international standards such as:

• ASTM

• DIN

• JIS

• ISO

Customization Capability

Manufacturers with OEM capabilities can provide customized solutions for special industrial applications.

FAQ

What types of pipe fittings are commonly used in Korea?

Common pipe fittings include elbows, tees, couplings, reducers, unions, flanges, and customized fittings.

Which materials are used for plastic pipe fittings?

Common materials include PVC, CPVC, PP, PPH, PE, PVDF, and PFA.

Which industries use pipe fittings?

Pipe fittings are widely used in semiconductor, chemical, water treatment, construction, and industrial applications.

How do I choose a pipe fittings supplier?

Consider product quality, material compatibility, pressure rating, certifications, manufacturing capability, and technical support.

Conclusion

The Korean pipe fittings market includes both plastic piping manufacturers and industrial fitting suppliers serving various industries.

For customers searching for reliable plastic pipe fitting solutions, Huasheng Pipe provides a complete range of PVC, CPVC, PPH, PE, PVDF, and PFA piping systems.

With advanced manufacturing technology and experience in global industrial projects, Huasheng is a trusted partner for high-performance plastic piping solutions.