304 stainless steel double piece wall sleeve embedded pipe for wall penetration

NegotiableUpdate on 02/01

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Overview

304 stainless steel double piece wall through sleeve embedded pipe: This product is suitable for stainless steel pipeline systems in industrial fields such as dairy, food, beer, beverage, pharmaceutical, cosmetics, etc; Various pipe fitting connection series products include standard series such as DIN.ISO.3A.SMS.BS.IDF.DS.BPE. Among them, sanitary grade fittings: 45 degrees/90 degrees/180 degrees are used for pipeline connections. Bend series: tee/four-way series; The same (partial) heart size series is a freely connected pipeline system for your production line size. There are four commonly used connection methods for various series of pipe fittings: welding, quick installation, thread and flange.

Product Details

304 stainless steel double piece wall sleeve embedded pipe for wall penetrationIntroduction

Through wall conduit, also known as through wall conduit, waterproof conduit, wall embedded conduit, waterproof conduit is divided into rigid waterproof conduit and flexible waterproof conduit. The two are mainly used in different places. Flexible waterproof sleeves are mainly used in places with high requirements such as civil air defense walls and water pools, while rigid waterproof sleeves are generally used in underground areas where pipelines need to pass through.

Flexible through wall waterproof conduit is a hardware fitting suitable for structures where pipelines pass through walls and are subject to vibration or have tight waterproof requirements. Generally, manufacturing enterprises manufacture it based on the S312 and 02S404 standard drawings developed and designed by the Institute of Building Science. The wall where the flexible waterproof conduit passes through the wall should be replaced with a concrete wall if it is not concrete, and the conduit must be solidified inside the wall at once; Flexible through wall waterproof conduit is widely used in construction, chemical, steel, tap water, sewage treatment and other units.

Rigid wall penetrating waterproof conduit is a steel pipe with an outer wing ring (a circular ring made of steel plate is fitted on the steel pipe), installed inside the wall (mostly concrete walls), used for general pipeline penetration through the wall, which is beneficial for wall waterproofing. Flexible wall penetrating waterproof conduit, in addition to the outer wing ring, also has a stopper ring and flange inner wire inside, which are sold in sets or can be processed by oneself. It is used for pipelines with shock absorption needs, such as pipes connected to water pumps that pass through the wall.

Both flexible through wall waterproof sleeves and rigid through wall waterproof sleeves are hardware accessories used for pipelines to pass through building walls that are subject to vibration or have strict waterproof requirements. They are commonly used in construction, chemical, steel, tap water, sewage treatment and other units.

When pipelines pass through shear wall foundations, beams, and special-shaped columns constructed of concrete, they should be installed together with the civil engineering. The reason is that the secondary pouring between the casing and the concrete is difficult to handle after reserving the holes; Some cannot be handled, such as installing rigid through wall sleeves on concrete shear walls of basement foundations.

304 stainless steel double piece wall sleeve embedded pipe for wall penetrationstructure

The sleeve is assembled from ceramic parts, mounting flanges, and conductors. The busbar wall bushing does not have conductive parts, and the porcelain bushing and flange are fixed with cement adhesive except for 35kV plateau type and some products that use mechanical clamping; Copper conductors are fixed with centering washers and nuts, while copper and aluminum conductors are fixed with centering washers and open pins. The opening size of the cover plates at both ends of the busbar wall bushing shall be determined according to the selected busbar specification and type. The surface of the attachment is coated with gray enamel paint.

In order to improve the initial corona discharge of the 20 and 35kV bushings, pressure equalization measures are adopted in the structure. The porcelain wall near the flange and the umbrella (edge) on both sides are appropriately enlarged and thickened. Before firing the porcelain, a layer of semiconductor glaze is uniformly applied to the inner cavity of the porcelain sleeve and the flange, as well as the first umbrella (edge) near the flange. After firing, the semiconductor glaze is firmly bonded to the porcelain wall, and the porcelain wall is short circuited through the contact piece, greatly improving the electric field distribution, preventing discharge in the inner cavity of the bushing, and increasing the sliding flashover discharge voltage.

The conductive part of the sleeve is made of aluminum conductor, which saves a lot of copper material and reduces costs. The conductive area connected to the busbar increases, overcoming the disadvantage of high temperature caused by the small contact area of copper conductors.

The installation of casing flanges can be done in two ways: forward and reverse. Except for 6 and 10kV copper conductor pipes, which are installed in the forward direction, all others are installed in the reverse direction.