Butterfly Valve
Our Butterfly Valves feature lightweight, space-saving designs that enable rapid operation and dependable sealing performance.
They are ideal for industries requiring agile operation, easy installation, and cost-effective maintenance across diverse commercial and industrial systems.
Double Offset/Eccentric Butterfly Valve
Double Offset/Eccentric; Soft / Metal / Fire Safe Seated
Application
Chemical, Petro-Chemical, Power, Pulp & Paper Mills, Oil Refineries, Ship Building, Gas Piping
Production Range
Standard & Specification
API 598, ASME B16.5, JIS B2210 (10K, 16K, 20K)
End Connection
Wafer, Lug, Double Flange
Operating Mode
Manual (Lever Handle, Worm Gear), Automatic (Electric Motor, Pneumatic Double Acting/Spring Return)
| Main Materials
Body
CS (A216-WCB), 316 SS (A351-CF8M)
Disc
316 SS (A351-CF8M)
Stem
17/4PH (AS64-630)
Seat
PTFE, RTFE, 316 SS, Inconel, PTFE + 316 SS
Shaft Bearing
316 SS + RTFE Impregnated,
316 SS + Graphite Impregnated
Packing Seal
PTFE, Graphite
| Seat Types Overview
Soft Seat
Tight sealing for low to medium pressure. Bubble Tight (Class VI)
Metal Seat
High durability for extreme temperatures and pressures. Line contact sealing (Class V)
Dual function for normal and fire scenarios. Bubble Tight (Class VI) shifts to Metal Seat (Class V)
Double Offset/Eccentric
Application
Chemical, Oil & Gas, Power Generation, Petro-Chemical, Water Treatment, Ship Building
Production Range
Standard & Specification
API 609, MSS SP-67 & SP-68, GB/T 12238
Testing: API 598, GB/T 13927 & 26480, JB/T 9092
End Connection
Wafer, Lug, Flange
Operating Mode
Manual, Pneumatic, Electric Actuator, Hydraulic Actuator
Materials
CS, SS, AS, Aluminum Bronze
Triple Offset/Eccentric Butterfly Valve
Cryogenic/Low Temperature
Production Range
Standard & Specification
API 609, BS 6364, ASME B16.34, JB/T 12623, GB/T 24925
Testing: API 598, GB/T 26480, BS 6364, MESC SPE 77/200, MSS SP-134, JB/T 12622
End Connection
Wafer, Lug, Butt Welded
Operating Mode
Manual, Pneumatic, Electric Actuator, Hydraulic Actuator
Materials
LCB, LCC, CF8, CF8M
High Temperature And High Pressure
Production Range
Standard & Specification
API 609, EN 593, GB/T 12238, JB/T 8082
Testing: API 598, GB/T 13927, EN 12266-1
End Connection
Flange, Wafer, Lug, Butt Welded
Operating Mode
Manual, Pneumatic, Electric Actuator, Hydraulic Actuator
Materials
SS, Chrome-Molybdenum Steel, Anti-Corrosion Alloy, High-Temperature Alloy
Metal to Metal Bi-direction
Production Range
NPS 2" – 48" (DN 50 – 1200), Class 150 – 2500 / -196°C to 850°C
Standard & Specification
API 609, ANSI B16.34 & B16.5, EN 593, JB/T 8527, GB/T 9113.1, ISO 5752
Testing: API 598, GB/T 13927 & 26480, JB/T 9092
End Connection
Wafer, Lug, Flange, Butt Welded
Operating Mode
Manual, Pneumatic, Electric Actuator, Hydraulic Actuator
Materials
CS, SS, AS, Duplex Steel, Inconel
| Main Materials
Body
CS (A216-WCB), 316 SS (A351-CF8M)
Disc
316 SS (A351-CF8M)
Stem
17/4PH (AS64-630)
Seat
PTFE, RTFE, 316 SS, Inconel, PTFE + 316 SS
Shaft Bearing
316 SS + RTFE Impregnated,
316 SS + Graphite Impregnated
Packing Seal
PTFE, Graphite
| Key Features
Zero Leakage & Reusable Designed Sealing
Control Ratio: Up to 100:1
Bi-directional flow control with unrestricted installation
Suitable for high pressure & temperature environments
Durable Stellite coating for wear and corrosion resistance
Metal to Metal
Production Range
NPS 2" – 160" (DN 50 – 4000), Class 150 – 300 (PN 2.5 - PN 50) / -29°C to 425°C
Standard & Specification
API 609, EN 593, JB/T 8082, GB/T 12238
Testing: API 598, GB/T 13927 & 26480, EN 12266-1
End Connection
Wafer, Lug, Flange, Butt Welded
Operating Mode
Manual, Pneumatic, Electric Actuator, Hydraulic Actuator
Wafer Butterfly Valve
API | ASME
Applicable Medium
Water, Steam, Oil, Gas, and Other Corrosive or Caustic Media
Production Range
Standard & Specification
End Connection
Wafer, Lug, Flange
Operating Mode
Manual, Pneumatic, Electric Actuator, Hydraulic Actuator
| Main Materials
Body / Disc
WCB, SS304, SS316, CF8M
Stem
SS316, 2Cr13, 1Cr18Ni9Ti
Sealing Ring
SS316, Fluorine Plastic
Packing
PTFE, Graphite
| Key Features
Compact wafer design for easy installation
Bi-directional flow capability with zero leakage
Suitable for high pressure & temperature environments
DIN
Applicable Medium
Water, oil, gas, steam, acid, alkali, and other corrosive media
Production Range
Standard & Specification
DIN 2595-2007, EN 1092-1:2001
Testing: EN 558-1:1995, 12266-1
End Connection
Wafer, Flange
Operating Mode
Manual, Pneumatic, Electric Actuator
| Main Materials
Body / Disc
CS, SS
Stem
SS, 2Cr13, 1Cr18Ni9Ti
Sealing Ring
Fluorine plastic, SS
Packing
Flexible graphite, Fluorine plastic
| Key Features
Zero leakage under specific test conditions
Good flow regulation and adjustable functionality
Suitable for pressure degrees below 6.4 MPa
GOST
Applicable Medium
Water, steam, oil, gas, acid, alkali, corrosive media
Production Range
Standard & Specification
End Connection
Wafer, Flange
Operating Mode
Manual, Lever Operator, Worm Gear, Pneumatic, Electric Actuator
| Main Materials
Body / Disc
Cast Iron, CS, SS, AS, Cr-Mo Steel
Stem
2Cr13, 1Cr13, SS, Cr-Mo Steel
Sealing Ring
SS, Multi-layered Metal & High-Temp Asbestos
Packing
Flexible graphite
| Key Features
Lightweight design for easy installation
Bi-directional flow capability with zero leakage
Suitable for high pressure & temperature applications
Lug Butterfly Valve
API | ASME
Applicable Medium
Water, Steam, Oil, Seawater
Production Range
Class 150–600 | -29°C to 425°C
Test Pressure: 2.93–15.0 MPa
Standard & Specification
End Connection
Lug
Operating Mode
Manual, Pneumatic, Electric Actuator, Hydraulic Actuator
| Main Materials
Body / Disc
WCB, SS304, SS316, CF8M
Stem
SS316, 2Cr13, 1Cr18Ni9Ti
Sealing Ring
SS316, Fluorine Plastic
Packing
Flexible Graphite, Fluorine Plastic
| Key Features
Compact wafer design for easy installation
Bi-directional flow capability with zero leakage
Suitable for high pressure & temperature environments
Flange Butterfly Valve
API | ASME
Applicable Medium
Water, Steam, Oil, Gas, and Other Caustic Media
Production Range
Standard & Specification
End Connection
Flange
Operating Mode
Manual, Pneumatic, Electric Actuator, Hydraulic Actuator
| Main Materials
Body / Disc
Cast Iron, SS, AS, Cr.Mo. Steel
Stem
2Cr13, 1Cr13 SS, Cr.Mo. Steel
Sealing Ring
Multi-layer SS with high-temp-resistant asbestos
Packing
Flexible Graphite
Bearing
Austenitic SS, 304 Nitrided Coating
| Key Features
Triple eccentric structure - zero leakage
For high pressure & temp. and corrosive environments
Metal-to-Metal Sealing: SS with stellite overlay
Bi-Directional Flow Capability
DIN
Applicable Medium
Water, oil, gas, steam, acid, alkali, and other corrosive media
Production Range
Standard & Specification
DIN 2595-2007, EN 1092-1:2001
Testing: EN 558-1:1995, EN12266-1
End Connection
Wafer, Flange
Operating Mode
Manual, Lever, Worm Gear, Pneumatic, Electric
| Main Materials
Body
Cast iron, SS/AS/Cr-Mo Steel
Disc
CS/SS/AS/Cr-Mo steel
Stem
2Cr13, 1Cr13 SS, Cr-Mo steel
Sealing Ring
Multi-layered SS with high-temp. resistant asbestos
Packing
Flexible graphite
Bearing
Austenitic SS, 304 nitrification treatment
| Key Features
Metal-seated structure with double or triple eccentric design, ensuring reliable sealing with minimal wear
High corrosion resistance, high-temp. tolerance, and wear-resistant materials.
GOST
Applicable Medium
Water, Steam, Oil, Gas, Acid, Alkali, Salt, and Other Corrosive or Caustic Media
Production Range
Standard & Specification
End Connection
Flange
Operating Mode
Manual, Worm Gear, Pneumatic, Electric Actuator
| Main Materials
Body / Disc
Cast Iron, AS / SS / Cr-Mo steel
Stem
2Cr13, 1Cr13, Cr-Mo Steel
Sealing Ring
SS with high-temp-resistant asbestos layers
Packing
Flexible graphite
| Key Features
Lightweight design for easy installation
Bi-directional flow capability with zero leakage
Suitable for high pressure & temp. applications
Extended Stem Butterfly Valve
Concentric Butterfly Valve
Production Range
NPS 2" – 96" (DN 50 – 2400), Class 150 (PN 6 - PN 20) / Up to 120°C
Standard & Specification
API 609, GB/T 12238
Testing: API 598, GB/T 13927 & 26480, JB/T 9092
End Connection
Wafer, Lug, Flange
Operating Mode
Manual, Pneumatic, Electric Actuator, Hydraulic Actuator
Material
CS, SS, AS, Special Materials