Are you paying attention to softened water treatment problems caused by control valves?

 In the use of the process because of improper use and other reasons tend to cause a variety of problems in water softening equipment, today we share the common problems in softened water treatment, caused by the control valve softened water treatment problems, here we look at the problem.

01 Drainage port continuous drainage

1, the valve body internal leakage
(1) Poor quality of incoming water, containing large particles of material will be the spool of the fixed sealing piece scratched resulting in water leakage.
(2) The rubber ring under the fixed sealing piece is damaged. Mainly caused by the installation or maintenance is not in place or the water contains impurities.
(3) Cracking of the moving piece leads to water leakage. Mainly caused by freezing or impurities.

2, the valve is in the backwash or wash position does not move
(1) Valve in the backwash or washing position when the power outage
(2) high water pressure, the valve (mainly with a manual handwheel valve) in the backwash or wash position with no movement.

(3) the control valve is in the replenishment position, the control valve will have a small part of the water for cleaning the jet nozzle directly from the discharge outlet.
4, the drainage pipeline is too long, water resistance, resulting in the piston can not act in place and honey water, it should be noted that the drainage port from the valve distance shall not exceed 5m, if the drainage port from the valve distance of more than 5m, can be used to unscrew the interface of the drainage port directly, the drainage port of the four-minute mouth sealing

02 valve station water
1. Manual valve (including manual filter valve and manual softening valve) handle is not turned into place.
2. Inlet water quality is poor, containing large particles of material will be spool of the fixed sealing piece scratched, resulting in water leakage (according to the different parts of the scratched, sometimes only the drainage port out of water, salt suction port does not run water).
3. Valve head positioning plate fixed column damage, resulting in inaccurate positioning and leakage
4. The backwash intensity of the filter valve is high, resulting in the rupture of the upper watercloth
5. The center tube is too long during installation, damaging the lower watercloth, and the quartz sand or activated carbon particles leaking from the lower watercloth will damage the fixed sealing piece.
6. The back-pressure rubber seal of the automatic softening valve is not good or the inlet pressure is too high resistance between the sealing surfaces increases, so that the end of the big gear in place after the spring back.
7. There is hot water backflow, so that the valve scalded.
8. Note that the pressure in the system should not be less than 0.2MPa.

03 Salt tank water overflow

1. Too much water replenishment
(1) The replenishment time is not set correctly. The time setting is too long, resulting in a large amount of make-up water.
(2) Feed water pressure is unstable, resulting in too much make-up water.
(3) The control valve controlled by electric ball valve, the electric ball valve is not closed tightly
(2) The water in the salt tank is not sucked up after the salt is sucked up
3、Replenishment of water to the salt tank during backwashing
When backwashing, the outlet and salt suction port are connected, and the water in the outlet pipe or storage tank will flow backward to the salt suction port during backwashing. In the installation of the control valve of the water softening equipment, Fangquan water purification recommended water storage tank and outlet pipe lower than the control valve, if higher than the control valve, you can use the following two methods to solve the problem of replenishment of water to the salt tank during backwashing.

04 Resin loss

1、Resin discharge
(1) The upper watercloth is damaged or detached, and the resin is discharged from the drain when backwashing, (2) the resin is discharged during positive washing or operation. The center tube is too long and the lower watercloth is easily damaged during installation, resulting in resin discharge.
(3) Drainage flow restriction is not good, backwashing intensity is high, resin is discharged from the drain after broken
(2) Softened water or regeneration discharge
2, softened water or regeneration wastewater is yellow, that is, the exchange agent produces solute phenomenon (1) the water temperature is too high or pH value is too high, beyond the stable range of the exchange agent, so that the exchange agent coking.
(2) After the loss of water, the exchange agent is suddenly swollen in contact with water, resulting in fragmentation.