B型铸铁排水管件 - 45°单弯头，承插 45°单法兰弯头，指一端为承口，一端为插口，采用法兰连接，B型胶圈密封的铸铁管件。 B型铸铁管和管件是目前国内常见的连接方式，特别是在地下排水中有更好的性能和优势。从管道系统构成上，铸铁排水管材可以分为直管、管件、辅件三大直管是管道系统的主要构成间分；45°弯头是属于管件类产品，起管道联通、导向作用，品种繁多的管件是实现排水系统功能的保证(汇集，转向，透气，闭水闭气，消能缓压，检查清障等)；辅件（如法兰，胶圈）主要起连接、密封作用。外
B cast iron drainage pipe - 45 degree single bend, socket 45 degree single flange elbow, refers to the end for the mouth, one end of the socket, using flange connection, B type sealing ring of cast iron pipe fittings. B cast iron pipe and pipe fittings are the most common connection in China, especially in underground drainage. From the pipeline system, cast iron drainage pipe can be divided into straight pipe, pipe fittings, accessories three straight pipe system is mainly composed of branch; 45 degree elbow is belongs to pipe fittings products, pipe fittings, Unicom guide, variety is to realize the function of drainage system guarantee (collection, steering, air. Closed water gas, energy dissipation and relief, etc.); check the wrecker accessories (such as flange, gasket) main connection and sealing function. abroad
B型管件所用铸铁管是W型管，长可以在现场按需裁切，安装快捷，拆装方便，便于维修更换等优点。 鸿福管业 B型铸铁管件 - 检查口 简介：又称为B型铸铁排水管件- 检查口，分为立管检查口，横管检查口，英文名称（check pipe， check hole）带有可开启，拆卸检查盖的配件，装设在排水立管及较长横管段上，作检查和清通之用。包括管件本体、检查口、密封盖、锁紧盖、胶垫，管件本体侧面设有检查口，检查口上装有密封盖，并用胶垫密封，管件本体两端口处装有锁紧盖。检查口是B型铸铁管中经常用到的铸铁排水管件，是在安装施工中必用管件，应用广泛。
Cast iron pipe used in B type pipe fittings is W type pipe, which can be cut on site according to the requirements, quick installation, convenient disassembly and assembly, convenient maintenance and replacement. Brief introduction of industry of B type cast iron fittings - check mouth tube Hongfu: also known as the B type cast iron drainage fittings - inspection port, divided into vertical pipe mouth check, check the horizontal pipe mouth, English name (check pipe, check hole) with an open cover, remove the check parts, installed in the vertical drainage pipe and long horizontal pipe section, inspection and cleaning purposes. The utility model is characterized in that the utility model comprises a pipe fitting body, an inspection opening, a sealing cover, a lock cover and a rubber pad, wherein, the side of the pipe body is provided with an inspection opening, and a sealing cover is arranged on the inspection port, and is sealed with a rubber pad. Check the mouth is B cast iron pipe often used in cast iron drainage pipe fittings, is in the installation of construction will use pipe fittings, widely used.
Check the mouth is generally installed in the vertical pipe, the vertical pipe and horizontal branch pipe for connecting blockage when cleaning, cyclone strengthen single riser drainage, high-rise buildings in the vertical pipe of every layer should be installed a check port spacing is not greater than 10m. But at the top of the bottom and is provided with a sanitary appliances more than two layers of top building must set up checkpoints, flat roofed building available instead of checking the vent mouth. In addition, the vertical pipe, such as the installation of B word tube, should be located in the upper part of the B pipe.