1. The casting quality of cast iron parts is not high, and there are defects such as sand holes, loose structures and slag inclusions on the valve body and the valve cover body.
3. Poor soldering, there are defects such as slag inclusion, unweld, stress cracking;
4. The cast iron valve is damaged after being hit by heavy objects.
Maintenance method:
1. Improve casting quality and conduct strength test in strict accordance with regulations before installation;
2. For valves with temperature below 0° and below 0°, heat or heat should be used. Valves that are stopped should be excluded from water. 3. Welds of valve body and bonnet composed of welding should be in accordance with relevant welding procedures. Carry out, and test and strength test after welding;
4. It is forbidden to push and put heavy objects on the valve. It is not allowed to hit the cast iron and non-metal valves with the hammer. The installation of the large diameter valve should have the bracket.
Door Lock Set
* SFIC Cylinder Door Lock
* ANSI Grade 2 standard
* Heavy Duty type & Commercial application
* Entrance function
* Compatible with 6-pin / 7-pin Small Format Interchangeable Core
* IC core is also suitable for lockset and lever set replacement
* Usable to Mortise Cylinder, Cylindrical Lock, Euro Profile Cylinder, Oval Cylinder, Padllock, Cam Lock...
* Brass material
* Cylinder with interchangeable & re-keyable cylinder core
* With 1 control key and 2 operating keys
* A specialized "control" key for insertion and extraction of the core
* 1,000,000 key combinations of 6-pin cylinder
* 10,000,000 key combinations of 7-pin cylinder
* No screwdriver and tool needed
* Different surface finished available (US03, US04, US10B, US15, US26, US26D)
SFIC deadbolt lock,deadbolt lock,deadbolt door lock
ANDJA TRADING PET. LTD. , https://www.lock-cylinder.com