闸门水封又称p型橡胶止水带，闸门水封是水电工程闸门的一个重要组成部分，是保证闸门密闭封水、正常运行的关键部件。闸门水封材料可以根据水头高低和孔口大小等具体条件进行选择，最常用的莫过于橡胶闸门水封。
Gate water seal is also called P rubber water stop belt. Gate water seal is an important component of hydropower project gate, and it is the key component to ensure gate seal water seal and normal operation. Gate sealing material can be chosen according to the specific conditions such as water head height and orifice size, and the most commonly used is the rubber gate water seal.
分类
classification
从水封材质分：橡胶水封是由天然橡胶（或合成橡胶）通过炼胶设备（开放式炼胶机或密炼机）分段塑炼后，混入专用防老剂、硫化促进剂、硫化助剂、补强剂、增塑剂等十多种原料后制得半成品混炼胶，再置于一定型腔的模具中，经硫化压机于高温、高压条件下而制得的符合水工钢闸门止水综合要求的止水元件,俗称普通水封。将低摩阻、高耐磨的增强聚四氟乙烯薄膜复合于水封止水工作面则称之为橡塑复合水封，工作面上的增强聚四氟乙烯薄膜为不间断不分段的整体，和工作面进行增强聚四氟乙烯涂层的水封称为无节型橡塑复合水封；目前国内唯一可以做到不管多长四氟带不断开、并且严格采用国标一个米厚度的四氟带的复合水封生产厂家是三门峡江河水电橡胶制品有限公司，将高强尼龙帆布置于水封橡胶中实现增强、低摩阻、成倍增加耐磨度的水封称为夹高强尼龙帆布水封；既加高强尼龙帆布又加聚四氟乙烯薄膜（或聚四氟乙烯涂层）的水封称为夹高强尼龙帆布橡塑复合水封；由聚氟乙烯和聚乙烯压出制得的水封称纯塑料水封；由金属材料制得的水封称金属水封。
P35闸门水封规范
P35闸门水封规范
The water seal material: rubber seal is made of natural rubber (or synthetic rubber) by mixing equipment (open rubber mixing machine or mixer) segment plastication, mixing special antioxidant, vulcanization accelerator, curing agent, reinforcing agent, plasticizer and other more than 10 kinds of raw materials to prepare semi-finished products mix, and then placed in a cavity of the mold, the vulcanizing press in high temperature and high pressure conditions and the sealing element with hydraulic steel gate water comprehensive requirements, commonly known as the common seal. The PTFE film composite seal sealing face in low friction and high wear resistance of the composite is called rubber seal, work on the surface of PTFE film for uninterrupted whole section, enhance the Teflon coated seal called section type rubber composite seal and working face; currently the only no matter how long can be done with PTFE constantly open, and strictly by national standard a m thickness of PTFE with composite seal manufacturers in Sanmenxia River Hydropower rubber products Co. Ltd., will enhance the high strength, low friction and wear resistance of the seal multiply called clip high-strength nylon canvas nylon canvas rubber seal is arranged in a water seal; with high strength nylon canvas with PTFE film (or Teflon coating) seal called high-strength nylon canvas rubber composite sealing clip; The water sealed by polyvinyl fluoride and polyethylene is called pure plastic water seal, and the water seal made of metal material is called metal water seal.
以型式分为常规水封、压紧型水封、液压伸缩水封。在闸门安装中闸门水封质量的好坏是整个闸门是否能够止水的关键问题，好多水电安装单位在对闸门、埋件等大件物品上采购非常严格，而恰恰在闸门水封的问题上不重视，造成几百万的工程完工后因为一点闸门水封而漏水不能交工甚至违约。
It can be divided into conventional water seal, compression type water seal and hydraulic telescopic water seal. In the installation of gate seal gate quality is the key problem of the whole gate to stop, a lot of hydropower installation units purchasing in the gates and buried pieces of bulky items are very strict, and not just pay attention to in the seal gate on the issue, causing millions of Engineering finished at the end of a seal gate and Water Leakage cannot hand over even default.
应用级规格参数
Application level specification parameter
I 类闸门水封：天然橡胶或天然橡胶为主的材料。SF6674适用于大型工程闸门；SF6474适用于中、小型工程
Class I gate seals: natural rubber or natural rubber based material. SF6674 is suitable for large engineering gates; SF6474 is suitable for medium and small works
II 类闸门水封：合成橡胶或合成橡胶为主的材料。它适用于水中含有少量酸、碱、油类或海水的工程闸门。
Class II gate seals: synthetic or synthetic rubber based material. The utility model is suitable for engineering gates with small amount of acid, alkali, oil or sea water in the water.
P35闸门水封规范