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中文简体What is PVC Spray Hose?
PVC Spray Hose is a high-pressure delivery hose made of polyvinyl chloride (PVC) as the base material, woven reinforced fiber or winding structure, designed for spraying liquids (such as pesticides, fertilizers, detergents, etc.).
Features:
High pressure resistance: The pressure resistance of the hose is greatly improved by embedding polyester fiber or nylon braided layer, which is suitable for high-pressure environments such as spray pumps. The general pressure resistance is between 20 and 60 Bar.
Excellent chemical resistance: PVC material itself has good corrosion resistance to a variety of agricultural and industrial chemicals, especially suitable for spraying pesticides and detergents.
Soft and light: Compared with rubber hoses, PVC hoses are lighter, easier to carry and operate, and are especially suitable for large-area operations.
Various specifications and colors: Supports customized colors, wall thickness, joint forms and printed logos on demand to enhance product recognition and corporate brand image.
How to choose a PVC spray hose?
Buying a suitable PVC spray hose is not only related to work efficiency, but also affects safety. The following are five key factors to consider when purchasing:
1. Working pressure and bursting pressure
PVC spray hoses are divided into 20Bar, 40Bar, 60Bar or even higher according to the design pressure level, and the bursting pressure is usually 3 times the working pressure.
If used for agricultural sprayers (such as backpacks and electric types), 20~40Bar is sufficient; if connected to high-pressure water guns and cleaning equipment, 60Bar or above should be selected.
Tips: Avoid overpressure use to prevent hose bulging and bursting.
2. Inner diameter and wall thickness
Common inner diameters are 6mm, 8mm, 10mm, and 12mm, and matching the spray equipment connector is very important.
The thicker the wall, the stronger the pressure resistance, but the softness is slightly worse.
Suggestion: 10mm or more can be selected for industrial use, and 8mm is generally more common for agricultural use.
3. Hose material and chemical resistance
PVC materials can be divided into ordinary PVC and modified PVC (such as adding solvent resistance), the latter is more suitable for spraying highly corrosive liquids.
If spraying pesticides, herbicides, detergents, etc., the corrosion resistance level of the hose should be confirmed (such as RoHS, REACH certification).
4. Adapt to the ambient temperature
The standard PVC Spray Hose is suitable for -10°C~+60°C.
It is recommended to choose a hose with an anti-UV outer layer in a high temperature environment to prevent softening, fading or bursting.
Note for winter operations in the north: PVC is easy to harden and become brittle at low temperatures, and a special cold-resistant hose should be used.
5. Length and accessories
The commonly available lengths on the market are 50 meters and 100 meters, which can also be customized according to needs.
It can be equipped with quick-connect connectors, threaded connectors, spray guns and other accessories to improve work efficiency.
Note: The longer the length, the greater the pressure loss. It is recommended to equip it with a booster device or a thicker hose.
Correct use of PVC spray hose
Correct use can not only maximize the effectiveness of the equipment, but also avoid safety hazards. The following are standard usage steps:
1. Inspection before first use
Check whether there are cracks, punctures or manufacturing defects inside and outside the hose.
Confirm that the sealing ring at the joint is intact and there is no leakage during installation.
2. Connecting equipment
Firmly connect the hose to the spray pump or spray gun interface. If necessary, use a stainless steel clamp or quick connector to ensure that there is no looseness.
Do not twist or pull it forcefully to prevent the joint from cracking due to excessive stress.
3. Operation precautions
Avoid tying or excessive bending of the hose during operation. The minimum bending radius should be indicated in the manual.
Avoid contact with sharp objects or high-temperature objects when dragging the hose.
Wear protective glasses and gloves during high-pressure spraying operations to prevent liquid splashing.
4. Handling after use
Clean the inner wall of the hose in time after use, especially when spraying pesticides or corrosive liquids.
Drain the residual liquid in the hose to avoid precipitation blockage or chemical reaction.
Daily maintenance recommendations for PVC Spray Hose
Proper maintenance can significantly extend the life of the hose. The following are specific recommendations:
1. Check the hose status regularly
Check the hose surface once a month for abnormalities such as swelling, discoloration, cracking, and bubbling.
If bulging or cracking is found, it should be replaced immediately to prevent explosion and injury.
2. Avoid direct sunlight and heavy rain erosion
Ultraviolet rays will accelerate the aging of PVC. It is recommended to store it in a ventilated and light-proof place after use.
It is recommended to purchase storage reels and sunshades to increase the life of the product.
3. Correct storage
Do not fold it hard or bend the hose repeatedly in the same place to avoid fatigue and fracture of the inner wall.
When reeling, follow the natural bending direction to avoid reverse twisting.
4. Clean the inner wall of the hose regularly
If pesticides, insecticides, oils or other chemicals have been transported, rinse thoroughly after each use.
Using weak alkaline cleaning agents is more helpful in decomposing residues.
Frequently Asked Questions (FAQ)
Q1: Can PVC spray hoses be used to transport hot water or steam?
A: Not recommended. Standard PVC materials will soften and deform above 60°C. If hot water is required, it is recommended to use EPDM or high-temperature silicone hose materials.
Q2: Can PVC hoses be connected to gasoline or diesel pumps?
A: Ordinary PVC hoses are not suitable for oil transmission, as oil will deteriorate PVC. Special oil-resistant hoses such as PU or NBR should be used.
Q3: Can PVC hoses be buried underground?
A: It is recommended to avoid long-term burial. PVC is not resistant to continuous pressure and humid environments and may age and harden. If it needs to be buried underground, a special thickened pressure-resistant hose should be used.
