How to choose the right eyewash

Eyewash: When a toxic or harmful substance (such as chemical liquid, etc.) is sprayed on a worker’s body, face, eyes, or a fire is caused by a fire, the worker’s clothing is used as an effective safety protective equipment to minimize the harm . but. Eyewash products are only used in emergency situations to temporarily slow the further damage of harmful substances to the body. Further treatment and treatment need to follow the doctor’s instructions.
Eyewashes have been widely used in most factories, laboratories and hospitals in developed industrial countries abroad (USA, UK, etc.) as early as the 1980s. Its purpose is to reduce the harm to the body caused by toxic and harmful substances at work. It is widely used in petroleum, chemical industry, semiconductor industry, pharmaceutical manufacturing and places where hazardous materials are exposed.
How to choose eyewash products correctly?
First, the decision is based on the toxic and hazardous chemicals at the work site.
When there are chloride, fluoride, sulfuric acid or oxalic acid with a concentration of more than 50% at the use site, you can only choose stainless steel eyewash with plastic ABS or high performance stainless steel eyewash with special treatment. Because the eyewash made of stainless steel 304 material can resist the corrosion of acids, alkalis, salts and oils, but it cannot resist the corrosion of chloride, fluoride, sulfuric acid or oxalic acid with a concentration of more than 50%. In the working environment where the above substances exist, the eyewash produced by using stainless steel 304 material will be damaged to a large extent in less than six months. The concepts of ABS dip and ABS spray are different. ABS dip molding uses ABS powder dip molding instead of ABS liquid dip molding.
1. Features of ABS powder impregnation: ABS powder has strong adhesion, thickness of 250-300 microns, and strong corrosion resistance.
2. Features of ABS liquid dip plastic: ABS powder has poor adhesion, thickness of 250-300 microns, and strong corrosion resistance.
Second: It is decided according to the local winter temperature. Except in South China, except in South China, the weather below 0 ℃ will occur in the winter, then there will be water in the eyewash, which will affect the normal use of the eyewash. To solve the problem of water accumulation in the eyewash, you must use an antifreeze eyewash, electric eyewash or electric heated eyewash.
1. The antifreeze type eye wash device can drain the water in the eye wash device after using the eye wash device or when the eye wash device is in a standby state. Antifreeze eye washers have automatic drain type and manual drain type. Generally, automatic drain type is used.
For East China, Central China and Southwest China, the underground frozen soil layer is generally 20-30 cm in winter. The water inlet pipe can be made of thermal insulation material to prevent water from freezing in the water inlet pipe. You can use the above-ground automatic emptying anti-freeze eye wash. The eyewash device can automatically drain the accumulated water in the eyewash device to prevent freezing. For the Northeast, North China, and Northwest China, the underground frozen soil layer is generally 50-190 cm in winter. The use of above-ground antifreeze eyewash is obviously unable to solve the problem of water ingress and antifreeze, and an underground antifreeze eyewash must be used.
The eyewash device places the antifreeze valve below the frozen soil layer, and uses a switch on the ground to control the water inlet and drainage of the eyewash device. The eyewash device can automatically empty the entire eyewash device and the water in the water inlet pipe below the ground to prevent Freeze.
2. In areas that can prevent frost and increase water temperature, you should use electric eyewash or electric eyewash
The electric heating eyewash device is heated by the electric heating belt, so that the water in the eyewash device will not be frozen, and the temperature of the eyewash water can be increased to a limited extent, but the water temperature of the spray cannot be raised at all. (Note: The flow rate of eye wash is 12-18 liters / minute; the spray is 120-180 liters / minute)
The electric eyewash device is heated by an electric heating system, so that the water in the eyewash device will not freeze, and the temperature of the eyewash and spray water can be increased.
Third, third. Determine based on the availability of water in the workplace
For those who do not have a fixed water source in the workplace, or need to frequently change the workplace, a portable eyewash can be used. This type of eyewash can be moved to the position required at the work site, but this type of small portable eyewash only has an eyewash function and no spray function, and the water flow of the eyewash is much smaller than that of a fixed eyewash device. For work sites with a fixed water source, fixed eyewash devices are used to directly connect the tap water on site, and the water flow is large. There are many types of fixed eyewash, which can be selected according to the needs of the factory.

Hybrid eyewash: with spray system and eyewash system installed directly on the floor
Vertical eyewash: no spray system, eyewash system installed directly on the floor
Wall-mounted eyewash: no spray system, eyewash system installed directly on the wall
Desktop eyewash: no spray system, eyewash system installed directly on the work surface
Sprayer: There is a sprinkler system and no eyewash system is installed directly on the ground
Shower head: There is a sprinkler system and no eyewash system is directly installed on the wall or ceiling
When the body and eyes of the site operator come into contact with toxic and harmful substances or have other corrosive chemicals, these equipments can be used for emergency flushing or showering of the eyes and body, mainly to prevent further harm to the human body caused by chemical substances.