BUTTERFLY VALVES

Lug Body Style (Centric)

Sizes:                              1’’ (DN25) to 24’’ (DN550)

Lever Operator:           Hand Lever / Gearbox.

Actuator:                       ISO 5211 Pneumatic / Electric

Working Pressure:      PN10/16, ASME CL 150 available

Body Material:              Ductile Iron / Stainless Steel

Disc:                               Stainless Steel

Shaft:                              Stainless Steel

Lining Sealing:              EPDM

Standards

Design:                           BS EN 593 /

Face to Face:                 EN558-1

Flange:                            BS EN1092, ANSI/ASME B16.5

Mounting Pad:              ISO 5211

Hydrostatic test pressure for seat: PN x 1.1, for shell: PN x 1.5 according to EN 12266-1.

Certificate:                  3.1 on request.

Valves according to:    API-609 are available

Lug Body Style has protruding legs that provide bolt holes matching those in the pipe flange.

This style has metal inserts installed in the valve’s bolt holes. The valve is installed between

two flanges using a separate set of bolts for each flange. The advantage of the lug body style is

it allows for dead-end service or removal of downstream piping.

Concentric Double Flanged Type 

Sizes:                                                  DN50 to DN300

Valve Actuator:                                Hand Lever Standard (Gearbox with Hand wheel By Request)

Working Pressure:                          10/16 Bar

Disc Strength:                                  15/24 Bar

Seat Test Pressure:                         11/17.6 Bar

Body Material:                                 Ductile Iron

Coating:                                             Fusion Bonded Epoxy

Lining Sealing:                                 EPDM

Standards 

Design:                                               BS EN 593

Face to Face:                                     EN558-1

Flange:                                               BS EN 1092 10/16, ANSI B16.1

Mounting Pad:                                 ISO 5211

Hydrostatic Test Pressure:            PN x 1.1, for shell: PN x 1.5 according to EN 12266-1.

Certificate:                                   3.1 on request.

Valves according to:                            API-609 are available

Concentric Flanged Type has the center of rotation moved back from the centerline of

the valve disc. The design relies on a frictional interference seal between the seal and seat which

are designed conically and on center.

Suitable for dual flow operation, hydrodynamic flow, reduced turbulence, to minimize pressure drop across the valve

Butterfly Valve Double Eccentric Type

Designed to ensure a secure shut-off and accurate flow regulation. The phrase “double eccentric” pertains to the two displacements of the valve’s disc and shaft. The initial displacement involves the deviation of the stem shaft from the center of the sealing surface, while the second displacement refers to the lateral positioning of the valve stem’s axis relative to the valve body.

Sizes:                                                  DN 100 to DN 3000

Valve Actuator:                                Hand Lever Standard (Gearbox with Hand wheel By Request)

Working Pressure:                          10Bar /16 Bar

Body Material:                                 Ductile Iron

Coating:                                             Fusion Bonded Epoxy

Series:                                                Series 13 / Series 14

Standards 

Design:                                               BS EN 593

Face to Face:                                     EN558-1

Flange:                                               BS EN 1092-2

Hydrostatic Test Pressure:            PN x 1.1, for shell: PN x 1.5 according to EN 12266-1.

Certificate:                                   3.1 on request.

The double eccentric design facilitates the rapid disengagement of the disc from the seat when opened, thereby decreasing excessive compression and friction between the two components. This configuration effectively reduces operating torque and wear, thereby prolonging the valve’s lifespan. The valve functions by rotating the shaft, which in turn moves the disc to either open or close, thereby regulating the flow of the fluid medium.

Ideal for applications that require precise shut-off, exceptional durability, and minimal maintenance. It can be utilized in both low and high-temperature environments, contingent upon the material used for the sealing seat.

Applications

Water Supply and Distribution: Often used in water supply systems, particularly in underground installations.

Wastewater Treatment: Effective in controlling the flow of wastewater in treatment plants.

Chemical Processing and Power Generation: Used in systems that require precise flow control and shut-off.

Oil and Gas: Suitable for controlling the flow of various fluids and gases.

HVAC Systems: Used in heating, ventilation, and air conditioning systems for flow regulation

Butterfly Valve Triple Eccentric Type

A triple eccentric butterfly valve, also known as a triple offset butterfly valve, is an advanced type of butterfly valve designed for high-performance applications. Here’s a breakdown of its function.

Sizes:                                                  DN 50 to DN 2400

Valve Actuator:                                Hand Lever Standard (Gearbox with Hand wheel By Request)

Working Pressure:                          16 Bar

Body Material:                                 Ductile Iron

Coating:                                             Fusion Bonded Epoxy

Series:                                                Series 13

Standards 

Design:                                               BS EN 593

Face to Face:                                     EN558-1

Flange:                                               BS EN 1092-1

Hydrostatic Test Pressure:            PN x 1.1, for shell: PN x 1.5 according to EN 12266-1.

Certificate:                                   3.1 on request.

Key Function

First Offset: The shaft is positioned behind the centerline of the sealing surface to provide a continuous seat and seal.

Second Offset: The shaft is located slightly off the centerline of the bore, which reduces friction during operation.

Third Offset: The cone axis is inclined from the pipe centerline, ensuring that the seal only contacts the seat at the final point of closure, minimizing wear and providing a bi-directional bubble-tight seal2.

This design allows the disc to quickly detach from the seat upon opening, reducing unnecessary compression and friction between the disc and the seat. The metal-to-metal sealing mechanism provides excellent durability and resistance to high temperatures and pressures

Ideal for applications where zero leakage, high durability, and low maintenance are crucial. They are suitable for both low and high-temperature applications, depending on the material of the sealing seat.

Applications

Water Supply and Distribution: Often used in water supply systems, particularly in underground installations.

Chemical Processing and Power Generation: Used in systems that require precise flow control and shut-off.

Oil and Gas: Suitable for controlling the flow of various fluids and gases.

HVAC Systems: Used in heating, ventilation, and air conditioning systems for flow regulation

Butterfly Valve Emergency Double Eccentric

Designed for critical applications where reliability, durability, and precise control are essential, especially in emergency situations, used in water intakes, outflow/discharge applications, and turbine protection.

Sizes:                                                  DN 300 to DN 2000

Working Pressure:                          16 Bar

Body Material:                                 Ductile Iron

Coating:                                             Fusion Bonded Epoxy

Series:                                                Series 14

Standards 

Design:                                               BS EN 593

Face to Face:                                     EN558-1

Flange:                                               BS EN 1092-2

Hydrostatic Test Pressure:            PN x 1.1, for shell: PN x 1.5 according to EN 12266-1.

Certificate:                                   3.1 on request.

Key Features:

1. Double Eccentric Design:
   • The valve has two offsets (eccentricities) in its design:
     • The first offset is the shaft being positioned behind the valve disc’s centerline.
     • The second offset is the shaft being slightly offset from the sealing surface.
   • This design reduces friction and wear during operation, ensuring a longer lifespan and smoother performance.
2. Emergency Use:
   • These valves are often used in systems where quick shut-off or isolation is required in emergencies, such as in fire protection systems, oil and gas pipelines, or water treatment plants.
3. Bidirectional Sealing:
   • The double eccentric design allows for effective sealing in both flow directions, making it suitable for applications where flow direction may change.
4. High-Performance Materials:
   • Constructed from robust materials like stainless steel, carbon steel, or other alloys, these valves can withstand high pressures, temperatures, and corrosive environments.
5. Low Torque Operation:
   • The double eccentric design reduces the torque required to operate the valve, making it easier to open and close, even in high-pressure systems.
6. Tight Shut-Off:
   • The valve provides a bubble-tight seal, ensuring zero leakage, which is critical in emergency situations.

Applications:

• Oil and Gas Industry: For pipeline isolation and emergency shut-off.
• Water Treatment Plants: To control and isolate water flow.
• Fire Protection Systems: For quick shut-off in case of fire emergencies.
• Power Plants: In cooling water systems and other critical processes.
• Chemical and Petrochemical Industries: For handling corrosive and high-pressure fluids.

Butterfly Valve Double Offset API609 

A valve is to  control the flow of liquids and gases. The double offset design reduces friction and wear between the disc and the seat, enhancing the valve’s durability and performance.

Sizes:                                                  4″ to 48″

Working Pressure:                          Class 150LBS

Body Material:                                 A216 WCB

Standards 

Pressure & Temperature Standard:      ASME B16.34
Flange Diameter Standard:                       ASME B16.5, ASME B16.47, BS EN 1092
Face-to-face Standard:                                API 609,MSS SP-68, ISO 575 2, BS EN 55 8
Pressure Test Standard:                             API 598

Certificate:                                   3.1 on request.

Key Features

• Design: Double offset (also known as double eccentric) design, where the stem is offset from the centerline of the disc and the body.
• Material: Typically made from materials like stainless steel, carbon steel, or other alloys.
• Seal: Metal-to-metal or soft seat options, providing excellent sealing capabilities.
• Pressure Rating: Suitable for high-pressure applications.
• Operation: Can be operated manually, pneumatically, electrically, or hydraulically.

Choose a double offset butterfly valve when you need:

• High Durability: The double offset design reduces wear and extends the valve’s lifespan.
• Excellent Sealing: Provides reliable sealing, even in high-pressure and high-temperature applications.
• Versatility: Suitable for a wide range of applications and media.
• Ease of Operation: Can be easily automated for remote control and monitoring.

Applications

• Oil and Gas: Used in pipelines and processing plants for controlling the flow of hydrocarbons.
• Chemical Processing: Suitable for handling corrosive chemicals and solvents.
• Water Treatment: Used in water and wastewater treatment plants.
• Power Generation: Ideal for controlling steam and other fluids in power plants.
• HVAC Systems: Used in heating, ventilation, and air conditioning systems.

Butterfly Valve Triple Offset API609 

A valve is to control the flow of liquids and gases. The triple offset design minimizes contact between the disc and the seat, reducing wear and extending the valve’s lifespan. This design also ensures a bubble-tight seal, even in high-pressure and high-temperature applications.

Sizes:                                                 3″ to 48″

Working Pressure:                          Class 150LBS / Class 300LBS

Body Material:                                 A216 WCB / A351 CF8 / A351 CF8M

Standards 

Pressure & Temperature Standard:      ASME B16.34
Flange Diameter Standard:                       ASME B16.5, ASME B16.47, BS EN 1092
Face-to-face Standard:                                API 609,MSS SP-68, ISO 575 2, BS EN 55 8
Pressure Test Standard:                             API 598

Certificate:                                   3.1 on request.

Key Features

• Design: Triple offset (also known as triple eccentric) design, where the stem is offset from the centerline of the disc and the body, and the third offset is the geometry of the sealing surface.
• Material: Typically made from materials like stainless steel, carbon steel, or other alloys.
• Seal: Metal-to-metal seat, providing excellent sealing capabilities and zero leakage.
• Pressure Rating: Suitable for high-pressure applications, often ranging from ASME Class 150 to 1500.
• Operation: Can be operated manually, pneumatically, electrically, or hydraulically.

Choose a triple offset butterfly valve when you need:

• High Durability: The triple offset design reduces wear and extends the valve’s lifespan.
• Excellent Sealing: Provides reliable sealing, even in high-pressure and high-temperature applications.
• Versatility: Suitable for a wide range of applications and media.
• Ease of Operation: Can be easily automated for remote control and monitoring.

Applications

• Oil and Gas: Used in pipelines and processing plants for controlling the flow of hydrocarbons.
• Chemical Processing: Suitable for handling corrosive chemicals and solvents.
• Power Generation: Ideal for controlling steam and other fluids in power plants.
• Water Treatment: Used in water and wastewater treatment plants.
• Marine Industry: Used in shipbuilding and offshore platforms.