Laminar Pte Ltd Singapore

Laminar Pte Ltd

Valves

Wafer Butterfly Valves

Group 1 1
Group 1 1

Description

Due to its high performance and versatility, a wafer-type butterfly valve is among the most popular choices for many applications. Wafer butterfly valves are designed to provide a tight seal between two pipe flanges and offer a variety of applications in both residential and commercial settings.

With its ductile iron or stainless steel construction, you can be sure that your wafer butterfly valve will last for years.

The design of the wafer butterfly valve offers smooth operation when used with various piping systems. The disc within the valve can move freely up and down, creating a perfect seal every time it’s used.

They allow efficient flow control and reduce the possibility of issues such as cavitation, turbulence, or pressure drop. The wafer-type butterfly valve can also provide a quick shut-off in case of an emergency.

If you’re looking for a reliable and durable solution for your piping system, Laminar’s wafer butterfly valve is an excellent choice. Our wafer-type butterfly valves are designed to shutoff duty of the flow of liquids and gases in utilities and industrial applications. These valves are lightweight, compact, and easy to install, making them popular in various industries, including water treatment, HVAC, and food processing.

Laminar’s wafer-type butterfly valves are available in various materials, such as stainless steel, carbon steel, and ductile iron, to suit different applications and requirements. They also have different sealing options, such as EPDM, Viton, and PTFE, to ensure maximum reliability and performance in harsh environments.

With Laminar’s expertise in supplying and servicing high-quality valves and actuators, customers can trust that they are getting the best solutions for their industrial needs.

Specifications

PN

10, 16

DN

40-300

Medium

Water | Seawater | Gas

Application

Water | Wastewater Treatment | Seawater | Industrial applications | Gas main and service lines | Pumping stations | Gas storage tanks

Specifications

  • Sealing system/standard: Resilient seated in accordance with EN 13774 (DIN 3352 – 4A)
  • Face-to-face length: acc. to EN 558, basic series 20 (DIN 3202 / K1)
  • Four holes for flanges acc. to EN 1092-2
  • Centric disk, mounted in three maintenance-free bearing bushes
  • Body material can be Ductile Iron, Cast Iron, WCB, 304SS
  • Disc material can be 304 & 316 St.Steel, PPS, Alu Bronze, Ductile Iron with DAC coating
  • For bolting between pipe flanges
  • Replaceable rubber sleeve with integrated seal for functionally reliable use for flared flanges, welding flanges, PE flanges as well as loose flanges with V-collar
  • Vacuum tight up to 0,2 bar absolute
  • Tight in both flow directions
  • For gas applications according to DVGW Guideline G 260

FAQ's

A wafer-type butterfly valve is designed for efficient flow control and features a disk that can move up or down to create a tight seal between two pipe flanges. The wafer-type butterfly valve design allows for smooth operation with various piping systems and precise regulation of liquids and gases.

The wafer-style butterfly valve consists of a disc mounted inside the valve body, which is connected to an actuator arm. When the actuator arm receives input from another source, such as a motor, it moves the disc within the body either up or down, depending on whether you need to open or close the flow. This movement creates a secure seal between the flanges, thus controlling the flow of liquids and gases.

 
 

Flanged butterfly valves offer several advantages in terms of performance and installation. Firstly, their design allows for greater flexibility when specifying the size of the connector; this means that the valve can be easily adjusted to fit with any existing piping system.

Additionally, because these valves require bolts as part of their installation, they provide added security by creating a stronger connection than wafer-type valves.

Suppose you have a system exposed to extreme temperatures or pressure levels. In that case, a flanged butterfly valve is the best choice, as the bolts help to ensure excellent stability.

On the other hand, wafer-type butterfly valves are ideal for systems where space is limited or when a quick and easy installation process is required. Unlike their flanged counterparts, these valves can be installed directly between two pipe connections without additional hardware. It makes them an excellent option when time and cost are the primary consideration.

In conclusion, it depends on your specific application which type of valve best suits you; however, both flange and wafer valves provide reliable performance and are available in various materials to suit any industrial need.

 
 

A wafer-type butterfly valve flange connection is an invaluable addition to any industrial system, providing reliable performance and easy installation.

The key advantage of this type of connection is that it requires no additional hardware; instead, the valve is installed directly between two pipe connections. It makes it ideal for situations where space is limited or when quick and easy installation is required.

 

A wafer-type butterfly valve flange connection is an invaluable addition to any industrial system, providing reliable performance and easy installation.

The key advantage of this type of connection is that it requires no additional hardware; instead, the valve is installed directly between two pipe connections. It makes it ideal for situations where space is limited or when quick and easy installation is required.

 

How To Install The Wafer Butterfly Valve In The Pipeline?

The correct installation of the wafer-type butterfly valve is crucial for ensuring proper sealing and preventing leaks, as well as ensuring safety in working conditions. The user needs to have a clear understanding of the installation process.

To properly install a wafer-type butterfly valve, follow these steps:

1. Alignment and Preparation:

  • Align the holes in the valve body with those of the flange, using gaskets to assist (using the suitable gasket material is vital to ensure a secure seal between the valve and pipeline flanges).
  • Insert bolts through the flange and valve body, then secure them with nuts and washers.
  • Ensure proper alignment of sealing surfaces on both sides of the valve.

2. Bolt Attachment and Flange Welding:

  • Insert bolts and nuts into the flange holes, lightly tightening to level the flange surface.
  • Attach the flange to the pipeline using spot welding or mechanical flange adaptors.

3. Valve Placement:

  • After the welding port cools down, proceed with valve installation.
  • Ensure adequate space in the flange to avoid valve damage and ensure proper valve plate opening.

4. Secure Fastening:

  • Adjust the valve position and securely fasten the four pairs of bolts. Avoid over-tightening.

5. Functional Check:

  • Open the valve to ensure free movement of the valve plate.
  • Partially open the valve plate.

6. Balanced Tightening:

  • Tighten all nuts in a balanced manner, following a cross pattern.

7. Final Check:

  • Ensure the valve opens and closes smoothly without obstructions.
  • Verify that the valve plate does not contact the pipeline.

A successful installation will guarantee optimal performance from your wafer butterfly valve for years. By following these simple steps, you can be confident that the pipeline system’s smooth operation is well-protected.

 
More Products
Other Products
Scroll to Top