& does relevant recommendations: 【 reducing rubber joint, can be flexible rubber joint, direct buried corrugated compensator 】 is gongyi city full state pipeline equipment co., LTD. The main business of our company has been made as a special equipment manufacturing license and ISO quality management system certification of qualified companies, the company management concept: the factory in order to "customer needs is our goal" principle, wholeheartedly for the customers with excellent products, reasonable prices, fast delivery cycle, professional technical support and perfect after-sales service. In the future, full state is full of confidence and hope, was determined in a more high quality brand and good service, sincere cooperation with customers at home and abroad, to do the northern area of the thermal compensation smoke duct equipment industry's first brand.


Section B of waterproof casing
Type B rigid waterproofing casing are applicable for pipe wall don't inherit the pipeline vibration and expansion deformation of structure (building) structures, for area with seismic requirements, such as using rigid waterproof casing, should be in the wall or on the building's exterior wall pipe, flexible connection thereto B steel waterproof casing is suitable for the ductile iron pipes.
1, rigid waterproof casing, suitable for cast iron pipe, can also be applied to nonmetallic pipe, but should be used according to the wall thickness of pipe fixed on size.
2, wing ring and steel casing processing is completed, both in its outer wall paint primer again (primer ZhangDan or cold priming oil).
The materials listed in the table 3, the casing size weight of steel sleeve, sleeve length L value calculated at 200 mm) and the weight of the wing ring. Steel casing and wing ring made of A3 material, T42 electrode welding.
4, casing wall in the wall, in case of the concrete wall should be switched to the concrete wall, its range of pouring concrete, Ⅱ type casing should be colorful ring (D4) large 200 mm in diameter, and must be poured casing a fixed in the wall. Packing should be closely compacted casing.
5, waterproof casing in the concrete wall thick, should not be less than 200 mm, otherwise one or both sides should make wall thickening, thickening of the diameter of the part, the minimum should be colorful ring (D4) large 200 mm in diameter.
More than six, rigid waterproofing casing oil hemp, asbestos cement filling, after filling tightly packed.

B steel waterproof casing of the technical parameters