Socket-Weld Flanges has a female socket in which pipe is fitted. Fillet welding is done from outside on the pipe. The socket welding flange is similar to a slip-on flange except it has a bore and a counterbore dimension. Weld Flanges,Socket Weld Flanges,ANSI Socket Weld Flanges,Steel Socket Weld Flanges Shandong Zhongnuo Heavy Industry Co.,Ltd. , https://www.znforged.com
Independent controller with independent controller as the main body This type of stand-alone controller integrates the card reader with the access control circuit and implements various function settings through the keys on the controller surface, such as adding a card, deleting a card, etc. . As long as the registered card, a credit card can enter the door open signal at any time. This access controller cannot be networked, does not require background software drivers, and can only be controlled by a single door.
This kind of stand-alone simple access control system is only suitable for simple office access control, no other strict security control logic (such as: time, combination, etc.), does not provide open log, can not monitor the access of personnel and an examination.
Attendance/access control system based on the attendance machine input unlock signal This type of time attendance/access control machine is based on the original mature attendance machine and is realized by adding one (or more) unlock signal interface. This kind of time attendance/access control generally has a liquid crystal display, a keypad, and an external (or multiple) card reader to meet the need to install the attendance/access control in the room. In addition, this time attendance access control supports RS485 networking, back-end support for simple time and attendance software, and simple access control management software (integrated with attendance software).
The professional access control system with professional access controller and independent card reader as the main body is the main body of this access control system. It is divided into three parts: professional access controller, independent standard card reader and professional power supply chassis. The access controller is installed in the power supply enclosure to form a whole. The power supply chassis provides power supply for the entire system, including: regulated/transformed and standby power functions. The power supply chassis is generally installed in a hidden, safe place in the room. Unlike attendance attendance machines, this access control system is a professional access security control system. All hardware and software design functions are fully targeted for access security control. With a complete set of access control and attendance software, taking credit card records as attendance data, you can also implement online patrol function. This product takes Aopu's “access control attendance professional version†as typical representative, as a safe access control system, product selection It is of vital importance, otherwise it will be useless and will not achieve the functional requirements of security control. To choose a smart card access control product, you should first select a networked professional access control system.
The counterbore is slightly larger than the O.D. of the matching pipe, allowing the pipe to be inserted into the flange similar to a slip-on flange.
The diamter of the smaller bore is the same as the I.D. of the matchine pipe A restriction is built into the bottom of the bore which sets as a shoulder for the pipe to rest on.
At present, the access control products provided on the market generally include the following types: