Double flanged butterfly valve

A major design advantage of Bray valve product lines is international compatibility. The most sought after design by desalination plants and utility installations, MVS represents the state of the art rubber lined double flanged butterfly valve , meeting all the user industry requirements. The double flanged body pattern ensures precise installation in pipeline, and can be used as an end to the line valve if. Short body flanged butterfly valves are the new “state of the art” butterfly valves available on the market, with a very compact design and various materials of constructions, they can be applied in several plants.

Suitable for mounting between flanges and can be used in many general applications such as in water distribution, water treatment, dams, power plants and in many other. The inside body is protected by a bonded rubber liner extending over the flanges.

You can see this in the image where one and two are written. This creates a cam action during operation that lifts the seat out of the seal. The high-performance double offset butterfly valve , used in slightly higher-pressure systems, is offset from the centre line of the disc seat and body seal (offset one), and the centre line of the bore (offset two). For double flanged valves specify either: (a) long pattern (see Table 2-B) or short pattern (see Table 2-C). Type of mating flange (slip-on, welding-neck, or other), mating flange specification, and flange bore or pipe inside diameter, as applicable.

A double flanged valve with vulcanised liner suited for haevy duty services such as shipbuilding and wastewater plants. Duvalco BA double flanged butterfly valves are of the concentric type with vulcanised rubber liner for minimum operating loads and reduced wear and tear on the various components, designed to meet EN 593. A single piece shaft design brings high strength and engineering with direct mount capabilities for actuation assemblies.

The “Dry Shaft” feature ensures fluid is again isolated from both the shaft and the body of the butterfly valve.

Lowest Prices - Industrial Valve s. Water Valve s - Low Prices, Buy Now. Conductive Iglidur bearing. Integral body locating holes to ensure perfect centering of the valve between flanges. The butterfly valve shall be designed expressly for waterworks applications and shall be of the double offset design. Zero and single offset butterfly valve designs are not acceptable.

Valves shall be of the size and class indicated in the Valve Schedule. Double eccentric butterfly valves find large application in underground water supply applications and compete with gate valves (especially in larger bore sizes) due to the fact that they are lighter, cheaper and minimize the excavation works. There are a few different types of butterfly valves , however, they fall into two basic types - Lug and Wafer valves.

Come with Lockable Lever and Notch Plate. Butterfly valves are classified as quarter-turn valves. Dimensions and images are taken from Flowserve Catalogue. Available with several Marine Class Type Approvals. The F0is the double flanged wafer pattern butterfly valve , suitable for a variety of applications with a wide range of liners available.

A Double - flanged butterfly valve , as the name implicates, has flanges welded to its body - one at the upstream end of the valve and the other at the downstream end of the valve. This type of butterfly valve , used to control, regulate and throttle flow, is the most resilient seated valve design which is usually used for dead-end service. All dimensions are in mm unless noted otherwise.

GENERAL INFORMATION Series Adouble flanged butterfly valve features a bonded liner extending over the flanges.

The double flange design is suitable for high pressure loading and for use in heavy industry, shipbuilding, severe vacuum applications and water treatment industry like potable water, water treatment and wastewater applications.