How to deal with the problem of metering pump application process

When running the dosing system should pay attention to what important matters? When running the dosing system, pay attention to the following matters: A. Dosing pressure B. Stroke frequency C. Suction height D. Altitude E. Corrosiveness of chemicals When measuring Is there any way to increase the pump's dosing accuracy when the pump outlet is at atmospheric pressure? Installing the valve spring on the dosing pump discharge valve improves repeat metering accuracy but the most effective way to do this is to install a backpressure valve at the end of the line. How to adjust the back pressure valve? 1. Never exceed the maximum working pressure metering pump. 2. When the dosing pump has pressure on the suction side, the pressure on the discharge side of the pump must be at least 1 bar higher than the pressure on the suction side. How to choose the right pulse damper volume? By multiplying the metering capacity (ml) per stroke of the metering pump (ml) by 26, the minimum volume (ml) of the pulsation dampener required to reduce the 90% pulsation can be obtained. How to set the pressure of the safety valve? The pressure of the safety valve can be adjusted within the range of the rated working pressure of the metering pump, and it is not allowed to exceed the maximum working pressure of the metering pump. The safety valve is designed to prevent over-pressurization of the metering pump. For example, if the maximum working pressure of the metering pump is 3 bar, the relief valve pressure should be set at 3 bar, or lower to ensure proper operation of the metering pump. Overpressure is one of the major causes of dosing pump damage. How to calculate the aspiration height if the fluid being delivered is not water? Divide the nominal aspiration height of the metering pump by the specific gravity of the metering liquid. Under what conditions is self-priming aspiration possible? Self-priming aspiration can be applied if: 1. The metered liquid is easily volatilized; 2. The metered liquid has a high specific gravity; 3. When a higher stroke frequency is required; 4. Metering pump when working in high altitude areas; 5. In the field when the application requires a larger tank, and rely on the self-priming pump is not feasible. Could you give me some advice on pump head selection? What are some common problems with chemical pump head / seal corrosion and should I avoid? The usual problem when it comes to metering pump heads is the presence of acid, chlorine, fluoride and hydrogen peroxide. Due to the different drug concentration and operating temperature, it is difficult to determine the specific pump head material. When measuring fluoride, we recommend using a Viton® sealed PVC pump head. For most chlorination applications, it is best to use an EPDM sealed NP (plexiglass) pump head. For the hydrogen peroxide mixture can only be measured PTFE PTFE sealed PTFE pump head or stainless steel pump head. The measurement of concentrated hydrochloric acid is usually Viton® sealed plexiglass pump head. Concentrated sulfuric acid can be selected PTFE sealed PTFE pump head. The manufacturer of the chemical gives advice or consult the ProMinent® Chemical Preservation Chart to determine the compatibility of the chemical with the contact material. When measuring the liquid in the pump head, what factors must be considered? The main factors to be considered are the viscosity, specific gravity, vapor pressure and temperature of the liquid.

Door Accessories

Door accessories include Automatic Door Kits , High Speed Door Motor And Control Box, High Speed Door Accessories, Other Door Accessories. We can sell any parts of these accessories.

Automatic door kits: Our automatic door kits include 1 motor+gear reducer, 1 belt,7 meter, 1 idle pulley, Microprocessor, 4 sets of carriage blue wheels, 2 sets of floor guides,2pcs remote control, 2 sets belt clamp mounting brackets, 1 power supply harness and cable connectors, 2 locator, Aluminum track whose length is 2.08 meter, 3 meter, or 4 meter. We are a manufacturer of automatic door openers that are designed to provide people convenience. Automatic Door Systems` drive to provide that level of service is but one of the reasons why automatic doors are becoming more and more popular. Our Automatic Sliding Door systems are modern, space-saving and elegant. Automatic sliding doors have many basic functions some of which include: automatic mode with full opening width and/or reduced opening width, and exit only for traffic control. The opening of automatic doors can also be adjustable to make the opening width smaller or larger. Important safety functions such as safety sensors prevent the door from shutting if persons or objects are in the detection zone. If the door leaves are inhibited when closing, they are immediately re-opened or if the door leaves are hindered when opening, they are immediately stopped by a safety automatic reversing mechanism.

High Speed Door motor and control box: Our company have German SEW Motor, Japan Mitsubishi Controller. Our own brand Hofic servo motor and controller. Chinese famous brand SEJ motor and Holip controller. German SEW Motor and Japan Mitsubishi Controller: It is easy to find the ideal energy-efficient motor for your application at SEW. Our rolling gate servo control system is suitable for high speed and high usage soft and hard rolling gate. The whole system is in a small and light package, it has high torque and high operating speed, lower noise, high reliability, smooth and soft operating curves, it`s suitable for high speed and usage environment. SEJ motor and Holip controller: Three-phase asynchronous motor with magnetic brake has broad uses, It is suitable for various mechanical main drive and auxiliary drive, and it is also used for various required rapid stopping and correct positioning.

high speed door accessories: Driving system: High speed door Servo System motor and control, motor SNMA / SEJ +reducer+flang+encoder+control box. Other accessories: Middle aluminium bar, bottom aluminium bar, aluminium vertical track, stainless steel vertical track, brushes,round nylon strip, PVC roll, rolling steel tube complete, drum be;;s for rolling tube, side end covers, stainless steel cover, steel tubes, air bag sensor system, safety light beam, Microwave sensor 24 Gigahertz,PVC welding machine, smoke and fire sensors, PVC transparent window, magnetic loop, photocell, remote control, manual push button, sound warning alarm Led lamp traffic light.

Other door accessories: Sectional door accessories: motor 220V-380V, control box, spring break device, cable break device , aluminum alloy rope pulley, enhanced shaft bracket, air bag system, duplex enhanced guide wheel bracket.

For accessories detail information, please kindly check our detail classify.

Door Accessories,Automatic Door Kits,High Speed Door Accessories,Sliding Door Operator

Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.hfautodoors.com