Pumps, including gear pumps, Roots pumps, high viscosity pump, single screw pump, etc., is transmitted through the shaft power to the gear, pump internal sealing surface, smaller internal diarrhea, so the pump efficiency is higher, Up to 70%, at the same time can reach high-pressure transmission medium, and the medium with lower viscosity also has good adaptability. Next, introduce the classification and characteristics of positive displacement pumps. Volumetric pump volumetric pump classification and characteristics Volumetric pump is divided into two types of reciprocating and rotary type, rotary volumetric pump compared with reciprocating pumps, rotary pump without suction, drain valve, reciprocating pump will not be as , Due to the high viscosity of the valve on the normal work have an impact, the pump efficiency increases rapidly with decreasing viscosity. Moreover, when the viscosity of the transfer liquid is increased, the pump revolution number is smaller than that of the reciprocating pump. Therefore, it is more suitable to use the rotary solvent pump than the reciprocating positive displacement pump when the viscosity of the liquid with high viscosity or the viscosity of the liquid is changed greatly. Rotary volumetric pump points: gear pumps, rotary piston pumps, screw pumps, and vane pumps and several other categories. With a low number of revolutions, high efficiency, self-absorption ability, smooth operation, part of the pump can be preheated and other characteristics, widely used in conveying high viscosity media. Disadvantages: covers an area of ​​large, large-scale construction, bulky, heavy weight. Further Reading: Pumps Valves pipe fittings Exhibition 2016 Exhibition of Information Industry, Internet (Xiamen) Technology Co., Ltd. Author: Asian pumps Network Editor: Yao Xiaoxia (QQ / micro-channel :) (service hotline:)
PVDF is short for Polyvinylidene Fluoride, it is a kind of Fluoride plastic with excellent physical mechanical and chemical properties, PVDF chemical stability make it no reaction with other substances, in this case it have excellent corrossion resist property and can be used for strong acid. In this case PVDF Diaphragm Valve is most suitable for chemical industrial, semi conduct industria. The working temperature could up to 140 degree. Standard fit for ANSI, JIS, DIN, pressure rate PN10 bar. Manual operate and pneumatic actuator operation both avaliable.
Ningbo RMI Plastic Co.,Ltd offer PVDF Diaphragm Valve with specification:
Size range:DN15~DN250 (1/2 inch ~ 10 inch)
Body materials:PVDF
Diaphragm material:PTFE,EPDM,FPM,NBR,NR
Connection: Flange ANSI CL150, JIS10K, DIN PN10; Socket: DIN, ANSI, JIS
Design pressure:0.25~1.0Mpa (PN2~10 bar)
PVDF Diaphragm Valve
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Ningbo RMI Plastic Co., Ltd. , https://www.rmiplast.com