特征Features :
BP430 A系列包覆垫片是一种良好的静密封材料,它是由石棉板,橡胶等具有弹性的材料与聚四氟乙烯包覆薄片组成的具有弹性的密封弹片。聚四氟乙烯具有突出的耐化学腐蚀性能及使用温度范围(-180~+250℃)广的特点。除高温熔碱金属与元素氟外它不受任何化学药品侵蚀。它的摩擦系数很低,具有优良的耐气候性能,是最好的不粘材料。
PTFE envelope gasket is a kind of static seals. It is composed of elastic materials such as compressed asbetos sheet,rubber,ceramics,etc,and PTFE envelope cover
PTFE has superior properties against chemical (not affected by all chemicals except molten alkalimetal and fluorine at elevated temperature)and temperatre (from-182~+250℃)The coeffficient of static and dynamic. friction of PTFE are very low.PTFE is the best of the “non-stick”maerial.lt has excellent Weatering and aging charactetistics.
规格Specifications:
外径
内径
厚度
17/8”(48mm)
1/2”(12.7mm)
2-1/4”(57mm)
3/4”(19mm)
0.04”(1.02mm)
2-5/8”(67mm)
1”(25.4mm)
1/15”(1.02mm)
3-3/8”(86mm)
1-1”(38mm)
3/16”(4.8mm)
4-1/8”(105mm)
2”(51mm)
1/4”(6.4mm)
5-3/8”(136.5mm)
3”(76mm)
6-7/8”(175mm)
4”(102mm)
8-3/4”(222mm)
6”(152mm)
11”(279mm)
8”(203mm)
用途:
聚四氟乙烯包覆垫片用作管道法兰及橡胶、塑料、陶瓷、石墨衬里的产业机械设备接合中处的密封材料。
Application:
PTFE envelope gasket is used to seal pipe flange and joint of industrial machinery apparatus wich is lined with rubber, plastic ceramics,graphite etc.
管法兰用聚四氟乙烯包覆垫片按制造方法分为如图所示三种型式。