F标准型Fstandard style：一般螺栓式隔离体 Normal threaded connection type
F1：I型法兰隔离体 1-Shape Flange
F2：敞开式法兰隔离体 Open Flange
F4：角度可调式隔离体 Angle adjustable
F5：探入式隔离体 Exteded type
F6；F7：卫生型隔离体 Sanitary diaphragm seals
F8：焊接一体式 Welded one-piece type
F9：管道型 In-Line-Type Diaphragm Seals To Fit Standard Flanges
F10：在线型隔离体 In Line Diaphragm Seals
F11：夹心式隔离体 Cell-type
MS：MS型法兰 MS type flange
产品简介
隔膜式系列压力表（配接化学密封），是由一个不同类型的通用压力表与一个隔膜隔离体配接而成的。在通用型压力表与隔膜隔离体之间还可以配接具有特定要求的连接体。通过这种配接，使一般通用型的压力表，增加了对特殊腐蚀要求、温度高、粘度大或含有固态浮游物、易凝固介质压力的测量性能。
隔膜式压力表（配接化学密封）在石油化工、制碱、化纤、制药、钢铁、食品等行业测量流体介质压力时被广泛使用。
Brief
Series YTP diaphragm pressure gauge (chemical seals) is composed of a conventional pressure measuring instrument, a connector and a diaphragm seal. This combination enables a general purpose pressure gauge to measure media of strong corrosion, high temperature, high viscosity, containing suspended matter or crystallizing.
Diaphragm gauges are universally used in petrochemical, alkali, chemical fiber, pharmaceutical,metallurgical, and food industries.
结构原理
配接化学密封系列压力表的工作原理如图所示。
隔离膜片在被测介质压力P的作用下产生变形，压缩内部充填的工作液形成一个相当于P 的压力P’。经工作液的传导，使压力仪表中的弹性元件自由端产生相应的变形，并按与之相配接的类别压力仪表工作原理显示出被测的压力值。
Configuration Principle
This illustration shows the operating principle of the diaphragm pressure gauge.
The diaphragm is deflected by the pressure of medium P, and an equivalent pressure P’ is generated.With transmitting through working fluid, the pressure P’ deflect the elastic element of a pressure measuring instrument which thereafter shows the pressure value.
隔膜压力表密封液的液位差
配接化学密封系列压力表在安装时受压部份与通用型压力表处于不同位置
时，(尤其对于采用软管连接的隔膜表) 应考虑到由于液位差对压力的影响。如图
所示。
(密封工作液比重大体等于1的，落差1m，压力差约为0.01Mpa/cm 2。
Level Difference of diaphragm pressure gauge seals liquid
When a diaphragm pressure gauge is mounted with pressure gauge and diaphragm seal at different positions, the effect of level difference should be taken into consideration (especially for a diaphragm gauge with capillary). As the illustration shows, with a S.G. of the working fluid at approx. 1, and a level difference of 1m, the pressure difference is approx. 0.01MPa/cm2.
隔膜式压力表的温度影响
隔膜式压力表其温度的影响量与密封液膨胀系数隔膜刚度及受压部位的温度有关。
仪表在使用环境温度偏离20± 5℃时，受温度影响的示值最大变化率刚性不大于0.1％℃，柔性(远接式)不大于0.1+0．025L％／℃(L- 传压导管长度m)隔膜式压力表在制做时应注意根据不同的使用环境，选择相适应的密封工作液。
Temperature Influence of diaphragm pressure gauge
The temperature influence of a diaphragm pressure gauge is relative to expansion coefficient of theseals working fluid, rigidity of the diaphragm, and temperature
of pressed part.
When working temperature deviates from 20 ± 5℃, the indication varies within 0.1%/℃ for rigid system, and within 0.1+0.025L%/℃(L-length of capillary in m.)for flexible system(remote mounting).Diaphragm pressure gauges are filled with suitable working fluid according to different operating conditions.
隔膜式压力表的耐腐蚀性能
本公司制造的隔膜式压力表其耐腐蚀性能包括充分满足客户外部环境，及内部环境(介质腐蚀性)两个方面，根据外部环境的要求，可以选择本公司生产的不同类型的压力表及与之相适应的隔离器进行配接。对于不同腐蚀性的测量介质可通过选择与之相适应的防腐材料隔膜及防腐材料的隔离体部件来保证。
Corrosion-Proof Properties of diaphragm pressure gauge
Instruments Diaphragm Pressure Gauge satisfies customers’ requirements of both environmental conditions and flow conditions (corrosive media) based on its significant corrosion-proof properties. Choose various pressure gauges combined with appropriate separator according to environmental conditions. Choose material of diaphragm and housing compatible with corrosive media.
隔膜材料：
SUS316,SUS316L 蒙乃尔合金(Cu30Ni70) 哈氏合金(H276c)钽(Ta)氟塑料(F4)钛膜片等
隔离体材料：
1Cr18Ni9Ti SUS316 SUS316L 钛材 氟塑料(F4)，
在不锈钢外部喷涂或内衬氟塑料或适用其它材料
密封垫圈材料：
丁睛橡胶，氟橡胶，硅橡胶及氟塑料
Diaphragm Material:
SUS316, SUS316L, Monel (Cu30Ni70), Hastelloy(H276c), Tantalum (Ta), Fluoroplastic (F4)
Partition Material:
1Cr18Ni9Ti, SUS316, SUS316L, Fluoroplastic (F4),
Fluoroplastic Coated Stainless SteelSeals MateialNitrile Rubber, ton, Silicone Rubber, Fluoroplastic
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