Samwoo Butterfly Valve

 

Samwoo Butterfly Valve is a premium industrial valve line from Samwoo Valve Co., Ltd – South Korea, distinguished by its compact design, flexible operation, and ability to withstand high pressure and temperature. The product is widely applied in water supply and drainage systems, wastewater treatment, fire protection, HVAC, power plants, chemical industries, and food processing.

The Samwoo brand was officially established in 1997 in Gimhae City, Gyeongnam Province, South Korea, and quickly rose to become one of Asia’s leading industrial valve manufacturers. With a strong commitment to quality, advanced technology, and a strict control system in compliance with international standards such as ANSI, JIS, DIN, and API, Samwoo has affirmed its position in major markets such as Germany, Singapore, Canada, and especially Vietnam, where the company invested in an assembly plant in 2018.

Key highlights of Samwoo Butterfly Valves include:

• Absolute tightness, ensuring effective leak prevention;
• Diverse materials such as cast iron, stainless steel, bronze-aluminium, and PTFE – suitable for all operating environments;
• Flexible operation options: lever, gear operator, electric actuator, and pneumatic actuator;
• Competitive pricing makes them suitable for both civil projects and heavy industrial applications.

With outstanding advantages in technology, durability, and high adaptability, Samwoo Butterfly Valves have become a top choice for many contractors, engineers, and investors in projects across Vietnam.

Samwoo Butterfly Valve Series

Samwoo offers a wide range of specialized butterfly valves designed to meet diverse applications and operating environments. Among them, the two main product lines stand out: the CL Series (concentric butterfly valves) and the HP Series (high-performance butterfly valves). Each series is engineered with distinct materials, structures, and technical standards to optimize performance, durability, and operational efficiency.

CL Series – Center Lined Butterfly Valve

Samwoo Centre Lined Butterfly Valve

This is Samwoo’s most popular valve line, featuring a simple design, lightweight structure, and cost-effective solution. Designed with the characteristic slim and flat butterfly valve profile, the body comes in dark grey or matte black, while the disc is polished silver, neatly positioned inside the valve body.

Key Features:

• Size range: DN40 – DN1200 (1.5” – 48”)
• Pressure ratings: PN10, PN16, 150LB, 10K
• Body materials: Ductile iron, cast iron, stainless steel, or bronze-aluminium
• Seat materials: EPDM, NBR, PTFE (Teflon)
• Suitable for: Clean water, wastewater, compressed air, fire protection systems, and HVAC applications

Typical Applications: Water supply and drainage systems, wastewater treatment plants, fire protection systems, gas pipelines, and low-pressure steam lines.

HP Series – High Performance Butterfly Valve

This valve series is designed for more demanding environments requiring high pressure and temperature resistance. It features a flanged connection design. The valve body is robustly cast with large flanges at both ends. Each flange is pre-drilled with multiple bolt holes, allowing the valve to be mounted directly onto pipe flanges using bolts and nuts. The body comes in charcoal grey or matte black with an epoxy protective coating, while the disc is flat, circular, polished stainless steel, neatly housed within the valve body.

Key Features:

• Size range: DN50 – DN1200 (2” – 48”)
• Pressure ratings: PN10 – PN40, ANSI 150/300LB
• Body and disc materials: Stainless steel, cast iron, carbon steel, bronze-aluminium
• Seat materials: PTFE, graphite, carbon
• Design: Lug or flanged type with high tightness

Typical Applications: Chemical industry, oil & gas, power plants, steam systems, and systems handling corrosive or high-temperature media.

Operating Methods

All Samwoo valve series support multiple operating options, meeting requirements from simple manual control to fully automated systems:

• Lever handle: Compact and lightweight, suitable for small valves (DN40–DN150)
• Gear-operated handwheel: Equipped with a gearbox for easier operation, suitable for valves DN100 and above
• Electric actuator: Connects to a central control panel for full system automation
• Pneumatic actuator: Provides fast open/close operation, ideal for systems with existing compressed air

With the CL and HP series designed according to international standards such as BS5155, ISO5752, API 609, MSS SP67, Samwoo Butterfly Valves can be flexibly integrated into any industrial or civil piping system.

Detailed Technical Specifications

Samwoo Butterfly Valves are manufactured according to international standards, offering a wide range of sizes, diverse materials, and flexible pressure ratings, fully meeting technical requirements across industries from basic to advanced applications. The table below summarises the key technical specifications for each product series:

CL Series – Center Lined Butterfly Valve

Specification	Technical Data
Nominal Diameter	DN40 – DN1200 (1.5″ – 48″)
Working Pressure	PN10, PN16, ANSI 150LB, JIS 10K
Working Temperature	-10°C to +120°C (depending on seat material)
Body Material	Grey iron, ductile iron, stainless steel, bronze-aluminium
Disc Material	Epoxy-coated iron, stainless steel 304/316, bronze-aluminium
Seat Material	EPDM, NBR, PTFE, Neoprene
Stem Material	Stainless steel 304, 316, SS410
Connection Type	Wafer, Lug
Design Standards	BS5155, ISO5752, MSS SP67, API 609
Operating Method	Lever handle, gear handwheel, pneumatic, electric

HP Series – High Performance Butterfly Valve

Specification	Technical Data
Nominal Diameter	DN50 – DN1200 (2″ – 48″)
Working Pressure	PN10 – PN40, ANSI 150LB – 300LB
Working Temperature	-20°C to +250°C (depending on seat material)
Body Material	Ductile iron, cast steel, stainless steel, bronze-aluminium
Disc Material	Stainless steel 316, stainless steel, carbon steel
Seat Material	PTFE, graphite, carbon
Stem Material	Stainless steel 304, 316, SS410
Connection Type	Lug, Flanged
Design Standards	API 609, ISO 5752, BS5155
Operating Method	Gear handwheel, electric actuator, pneumatic actuator

Key Advantages of Samwoo Butterfly Valves

Samwoo Butterfly Valves are highly regarded not only for their superior manufacturing quality but also for their flexible operation, long service life, and adaptability across diverse industrial environments. Key advantages that make these valves widely trusted in Vietnam and worldwide include:

• International Standards Compliance: Manufactured according to BS5155, ISO5752, API 609, ANSI, JIS, DIN, ensuring seamless integration with global piping systems, saving installation time, and facilitating maintenance.
• Excellent Leak Resistance: Provides reliable sealing even under high-pressure or temperature environments, thanks to EPDM, NBR, PTFE, and graphite seats.
• Versatile Material Options: Available in cast iron, stainless steel 304/316, bronze-aluminium, offering effective operation in clean water, wastewater, compressed air, chemicals, hot oil, and saturated steam applications.
• Flexible Actuation: Supports lever handle, gear handwheel, electric actuator, or pneumatic actuator for various operational needs.
• User-Friendly Design: Wafer or lug-type design allows easy installation, inspection, and replacement during operation.
• Cost-Effective Investment: Affordable initial cost with high operational efficiency and long-term value.

It can be confidently stated that Samwoo Butterfly Valves are the optimal solution for systems requiring high tightness, exceptional durability, flexible operation, and cost-effective investment.

Practical Applications

With a flexible design, diverse material options, and excellent pressure and temperature resistance, Samwoo Butterfly Valves are widely used across various industrial and civil sectors, including:

• Water supply and drainage systems
• Fire protection systems (FSS)
• Power plants, thermal and steam systems
• Chemical industry and wastewater treatment
• Food and pharmaceutical industry
• HVAC systems, building services, and M&E applications

Samwoo butterfly valve price list for reference (2025)

Samwoo butterfly valve prices may vary depending on size, material, connection type, and operating method. Below is a reference price list for popular product lines, applicable to CL Series (concentric) and HP Series (high performance):

Samwoo CL Series Butterfly Valve – Lever Type

Nominal Diameter (DN)	Unit Price (VND/set)
DN50	680,000 – 750,000
DN65	780,000 – 850,000
DN80	890,000 – 970,000
DN100	1,050,000 – 1,150,000
DN125	1,200,000 – 1,300,000
DN150	1,350,000 – 1,500,000

Samwoo CL Series Butterfly Valve – Gear Handwheel Type

Nominal Diameter (DN)	Unit Price (VND/set)
DN200	1,850,000 – 2,000,000
DN250	2,400,000 – 2,600,000
DN300	2,900,000 – 3,200,000
DN350	4,000,000 – 4,500,000
DN400	5,200,000 – 5,600,000

Samwoo CL Series Butterfly Valve – Pneumatic Actuator

Nominal Diameter (DN)	Reference Price (VND/set)
DN80	4,500,000 – 5,200,000
DN100	5,000,000 – 5,800,000
DN150	6,500,000 – 7,800,000
DN200	7,900,000 – 9,200,000

Samwoo HP Series Butterfly Valve – High Performance

Nominal Diameter (DN)	Unit Price (VND/set)
DN100	3,200,000 – 3,600,000
DN150	4,500,000 – 5,000,000
DN200	5,800,000 – 6,500,000
DN300	8,800,000 – 10,000,000

Tips for Choosing the Right Samwoo Butterfly Valve

To select the appropriate Samwoo butterfly valve that meets technical requirements and optimizes investment costs, it is important to understand the factors that affect valve performance and service life. The following are insights compiled by Bao Tin Steel through years of experience in supplying and consulting on industrial valves:

Clearly Identify the Operating Environment

• Clean water, wastewater, or standard compressed air → Use CL Series butterfly valves with EPDM or NBR seats.
• Hot steam, hot oil, or high-pressure gas → Opt for HP Series valves with PTFE or graphite seats.
• Corrosive chemicals, mild acids/bases → Require Teflon (PTFE) seats and stainless steel 304/316 body and disc.

 Choose the Correct Connection Type

• Wafer type: Common, compact, installed between two flanges – cost-effective.
• Lug type: Equipped with bolt holes, suitable for systems where one side of the pipe needs to be removed.
• Flanged type: Robust, ideal for high-pressure systems or frequent operation.

Consider the Operating Method

• Lever handle: Suitable only for DN50 – DN150, allows quick manual operation but limited torque.
• Gear handwheel: Equipped with a gearbox, ideal for DN200 and above or high-pressure environments.
• Electric or pneumatic actuator: Perfect for automated systems such as SCADA, BMS, or high-rise building applications.

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Tiger Steel is a subsidiary of Bao Tin Steel.