Any, even the highest quality inflatable boat can eventually face the problem of pressure loss. Bark And they often look for a reliable way to solve this problem, and the key element here is the air valve, and it's the safety of the water, the pumping speed and the durability of the entire swimming aid that depends on its proper installation.
In this article, we will discuss in detail how to choose PVC boat valve BarkWe'll talk about the intricacies of installation, common replacement errors and leak restoration methods that will prolong the life of your vessel, and why universal solutions may not be suitable for your particular model. Understanding the design of this small but critical unit will help you avoid costly repairs in specialized workshops.
Many users underestimate the importance of proper care of the valves of inflatable tubes. pump-valve It's the main mechanical stressor of pumping and descent, and if you notice that the boat is getting slower to keep in shape or requires water pumping, the first thing you need to do is check the integrity and landing of the valve mechanism.
Types of valve systems for Bark boats
Company Bark Over the years, she has used various technologies to connect the valve to the PVC fabric. Understanding what system is installed on your boat is necessary for the correct selection of the remix. The most common option is an adhesive valve, which is fixed in the cylinder opening with special glue and rolling, such models require accuracy during installation, since reuse of the old hole is often impossible without loss of leakage.
There are also threaded models where the valve is screwed into a reciprocating part soldered into the fabric, which is considered more repairable in the field, because it allows you to quickly replace the mechanism itself without the complicated adhesive work. rubber-valve in such systems should be perfectly selected for threading, otherwise there will be an effect of "eating" air through the turns.
- 🔩 Adhesive valves: Require the use of special glue for PVC and careful surface preparation, ensure maximum tightness with proper installation.
- ⚙️ The thread joints: They are characterized by rapid replacement, but require control of the tightening forces in order to avoid deformation of the tissue.
- 🌬️ Reverse valve systems: They allow pumping on water without losing air volume, which is critical for safety.
We need to focus on the fabrication material. boat-valve It is made of durable plastic or brass with anti-corrosion coatings, cheap analogues can crack in the cold or deform under pressure, which will lead to an emergency, always check the marking and country of origin when buying spare parts.
Diagnosis of malfunctions and causes of air etching
Before you start replacing, you need to pinpoint the source of the problem. Bark They're wrongly wrong about the valve itself, and the problem is that there's a microcrack in the tissue around it or there's a contamination of the sealing rings, and the primary diagnostics is by spraying the sprayed water on the pumped balloon, and the bubbles will point to the exact location of the leak.
⚠️ Warning: Never use an open fire or heater in the vicinity of a pumped boat to check leakproofness, as this may cause seams to depressurize or ignite.
If bubbles appear directly from the center of the mechanism, then the problem is the squirrel Often it's a grain of sand or small debris that gets under a rubber seal, and in such cases, it's enough to disassemble the valve, wash it with fresh water and reassemble it, and if the air is poisoning around the perimeter of the connection to the fabric, more serious repairs will be required using adhesive compound.
It is important to distinguish between the natural pressure drop due to temperature changes and the actual leakage. When the air inside the cylinders cools (for example, when descending from a hot shore into cold water), the pressure naturally drops. However, if the boat requires a pump every 15-20 minutes of active rowing, this is a clear sign of malfunction. pump-valve or a breach of the integrity of the seam.
Instructions for replacing the valve yourself
Replacing the valve system is a process that requires patience and temperature control. To work, you will need a special glue for PVC (often two-part), a degreaser, a roller for rolling and possibly a dryer for heating. Before work begins, the boat must be completely deflated, cleaned and dried. The old valve is carefully cut off with a sharp knife, trying not to damage the fabric of the cylinder.
The process of installing the new element is as follows: first, the surface around the hole and the surface itself. PVC-valve They're thoroughly degreased. The first layer of glue is then applied to both glued surfaces and kept until it dries out (usually 10-15 minutes), and then a second layer is applied, and after a few minutes, when the glue stops sticking to the fingers, the connection is made.
☑️ Checklist for preparation for valve replacement
The critical step is rolling, and you have to roll the connection from the center to the edges carefully to squeeze out all the air bubbles. The optimal temperature for bonding PVC is from +15 ° C to +25 ° C.At lower temperatures, the polymerization of the glue may not occur, and at high temperatures, the glue will dry too quickly, without providing adhesion.
Once the new mechanism is installed, the glue must be allowed to fully polymerize, which usually takes 12 to 24 hours depending on the type of chemical composition used, and only after that time can the boat be pumped and leakproofed, and the rush at that point can negate all the work.
Comparative table of valve compatibility
When choosing a spare part, it is important to consider not only the brand of the boat, but also the year of release, as well as the specific series. Bark Other types of fittings may have been supplied over the years, and the following is a table that helps you navigate the main types of connections found on the market.
Bark Compatibility| Valve type | Base diameter | Materials | Features | |
|---|---|---|---|---|
| Bravo (standard) | 58 mm mm | Series BT, B (old) | Plastic/Brass | The most common type, easy to find a replacement |
| Leafield D7 | 63 mm | Series Bark-320, 350 | Plastic. | High capacity |
| Halkey-Roberts | Other. | Rarely, specials. | Metal/Plastic | High reliability, complex installation |
| Bark Original | Specific | New models. | Reinforced plastic | Perfect geometry for the manufacturer's cutouts |
The use of a valve that is not suitable in diameter or type of thread is unacceptable. Even if the detail appears similar visually, microscopic differences in the profile of the thread or the height of the burtic will lead to the fact that the carving is not suitable for the purpose of the valve. sealability Always check the items or take the old valve with you to the store for comparison.
Can I use a car sealant?
The use of automotive sealants for PVC valve installation in boats is strongly discouraged, they do not have the necessary elasticity after drying and may contain solvents that destroy the structure of PVC fabric. Use only specialized two-component polyurethane adhesives designed for inflatable structures.
Care and prevention for extension of service life
And boat-valve It was a long time and was not a problem, you have to follow simple rules of operation. After each release, especially if the boat was used in salt water or in silted bottom conditions, the valves should be washed with fresh water. Salt crystals and abrasive particles can damage the sealing gums or jam the mechanism of the spool.
The boat should be stored in a slightly deflated state, but not completely deflated. This prevents the internal walls of the cylinders from sticking together and preserves the elasticity of the materials. Before long-term storage (for the winter), it is recommended to lubricate the movable parts of the valve with silicone grease, which is not aggressive to rubber and plastic.
- 🧼 Regular washing: Use a soft sponge and neutral detergents, avoiding aggressive chemicals.
- ☀️ Ultraviolet protection: When you are on the shore for a long time, cover the boat with an awning, as UV rays destroy the plastic valves.
- 🔧 Seasonal audit: Once a year, conduct a full pressure check of all cylinders at home.
If you notice that the valve cap is difficult to twist or, on the contrary, it is too easy to scroll, it is a signal that maintenance is necessary. Perhaps the thread has become dirty or worn out, and in time, the measures taken will avoid a situation where the boat will start poisoning the air at the most inopportune time.
When assembling a boat after winter storage, first open all the valves and let the boat lie flat for several hours, allowing the PVC material to "remember" the shape and remove the folds, reducing the load on the seams and valve joints during pumping.
Frequent Questions and Answers (FAQ)
Can I use a valve from another boat on the Bark?
Theoretically, it is possible if the landing diameter, the type of thread and the height of the burtic match. However, manufacturers often use unique profiles. Installation of a non-native valve requires perfect fit and may not provide the declared tightness. Bark.
Why does the valve poison the air after pumping?
The main reasons are: contamination of the valve saddle with sand or dirt, wear of the rubber spool pad, or leakage at the point of sticking the valve to the cylinder. In the first case, cleaning will help, in the second - replacing the spool, in the third - gluing the valve.
How to properly store the boat so that the valves do not dry out?
The boat should be kept in a dry, cool place, protected from direct sunlight, optimally kept straightened or slightly deflated, rubber valve seals should not be in a state of constant strong compression or, conversely, stretching.
Which glue is best for installing a valve?
The best results are shown by two-component polyurethane adhesives specially developed for PVC materials (for example, Texacol, Kleyberg or specialized adhesives from boat manufacturers) that provide an elastic and water-resistant seam that withstands temperature changes and mechanical stress.
Timely diagnosis and use of original components is a guarantee that your boat Bark will last for many years without loss of performance and safety.