Technical cookies are strictly necessary for our website to work and you can navigate through it. These types of cookies are those that, for example, allow us to identify you, give you access to certain restricted parts of the page if necessary, or remember different options or services already selected by you, such as your privacy preferences. Therefore, they are activated by default, your authorization not being necessary in this regard. Through the configuration of your browser, you can block or alert the presence of this type of cookies, although such blocking will affect the proper functioning of the different functionalities of our website.
The analysis cookies allow us to study the navigation of the users of our website in general (for example, which sections of the page are the most visited, which services are used most and if they work correctly, etc.). From the statistical information on navigation on our website, we can improve both the operation of the page itself and the different services it offers. Therefore, these cookies do not have an advertising purpose, but only serve to make our website work better, adapting to our users in general. By activating them you will contribute to this continuous improvement. You can enable or disable these cookies by checking the corresponding box, being disabled by default.
Functionality cookies allow us to remember your preferences, to personalize certain characteristics and general options of our website, every time you access it (for example, the language in which the information is presented to you, the sections marked as favorites, your browser type, etc.) Therefore, this type of cookies does not have an advertising purpose, but by activating them you will improve the functionality of the website (for example, adapting to your type of browser) and the customization of it based on your preferences (for example, by presenting the information in the language that you have chosen in previous occasions), which will contribute to the ease, usability and comfort of our page during your navigation. You can enable or disable these cookies by checking the corresponding box, being disabled by default.
Advertising cookies allow us to manage the advertising spaces included in our website based on criteria such as the content shown or the frequency in which the ads are displayed. For example, if you have been shown the same ad several times on our website, and you have not shown a personal interest by clicking on it, it will not appear again. In summary, by activating this type of cookies, the advertising shown on our website will be more useful and diverse, and less repetitive. You can enable or disable these cookies by checking the corresponding box, being disabled by default.
Behavioral advertising cookies allow us to obtain information based on the observation of your browsing habits and behaviors on the web, in order to show you advertising content that best suits your personal tastes and interests. To understand it in a very simple way, we will give you a fictitious example: if your last searches on the web were related to suspense literature, we would show you advertising about suspense books. Therefore, activating this type of cookies, the advertising that we show you on our website will not be generic, but will be oriented to your searches, tastes and interests, therefore adjusting exclusively to you. You can enable or disable these cookies by checking the corresponding box, being disabled by default.
To understand it in a very simple way, we will give you a fictitious example: if your last searches on the web were related to suspense literature, we would show you advertising about suspense books. Therefore, activating this type of cookies, the advertising that we show you on our website will not be generic, but will be oriented to your searches, tastes and interests, therefore adjusting exclusively to you. You can enable or disable these cookies by checking the corresponding box, being disabled by default.
Welcome to the basic information about the cookies from the website of the entity: CEPEX S.A.,
A cookie is a small file of information that is stored on your computer, smartphone or tablet every time you visit our website. Some cookies are ours and others belong to external companies that provide services for our website.
Cookies can be of several types: technical cookies are necessary for our website to work, do not need your authorization and they are the only ones we have activated by default. The rest of cookies serve to improve our page, to personalize it based on your preferences, or to be able to show you advertising adjusted to your searches, tastes and personal interests. You can accept all these cookies by clicking the ACCEPT button or set them up or reject their use by clicking on the COOKIE SETTINGS section.
Agree and continue browsing
Check valves are self-contained, automatic valves, which are used to prevent the reversal of flow in a line. When open and under flow pressure, the checking mechanism will move freely in the media, offering very little resistance and minimal pressure drop. Asahi/America provides two basic types of check valves: swing check valves and ball check valves. A swing check valve utilizes a swinging disc, which requires only minimal back pressure to close the valve. This valve can also be modified, with a lever and weight or spring, to assist in seating faster to eliminate shock. The Asahi/America ball check valve employs a free moving ball, which unseats to permit flow in one direction, but seals against a seat to prevent backflow. Both types of valves may be installed vertically or horizontally.
Chemical processing, bleach plants, aquariums, mining, water treatment, landfills, swimming pools, power plants
True Union: 1/2" - 2"
PVC, CPVC, PP and PVDF
Seat & Seals:
EPDM, FKM, PTFE
Socket, Threaded, Flanged, Butt End
Tank inlets/outlets; preventing backflow into a pump; one-way mixing; water hammer mitigation; pressure balancing; process intakes. In the following industries: chemical processing, bleach plants, aquariums, mining, water treatment, landfills, swimming pools, power plants
3/4" – 8"
Hi-PVC, PP, PVDF
Seat & Seals:
Flanged Connection Only
Tank inlets/outlets, preventing backflow into a pump, one-way mixing, water hammer mitigation, pressure balancing, process intakes.
In the following industries: chemical processing, bleach plants, aquariums, mining, water treatment, landfills, swimming pools, power plants
3” - 12”
EPDM or FKM
Request a Quote
BIM and CAD Library
My Asahi Customer Portal
PVC Ball Check Valves
PVC check valves come in true union ball check, wafer check and swing check designs. All offer the benefits of PVC, including its durability and corrosion resistance. True union ball check valves have a metal or ruby ball that turns flow on and off when the pressure inside the valve reaches a certain point. The pressure pushes the ball into the "off" position. Because these valves can be quite small, they are used in microelectronics, but also may be used in chemical processing, water treatment and chemical cooling processes.
Swing check valves contain a disk on a hinge that swings into place to stop reverse flow. They, like the ball check valves, are designed to work without human intervention. They are larger in size than ball check valves, so they are commonly used in larger applications, like the flapper in a home toilet, which opens is automatically held in the "off" position unless someone flushes and opens it. They may also be used in fire safety systems and firefighting equipment.
Wafer check valves are used in situations where the valve needs to open and close quickly. These valves, which are also called dual plate check valves, have a pair of plates that come together to stop the flow quickly. The plates stop flow automatically when the pressure in the system reaches a certain point.
PVC Swing Check Valves
These valves come in a range of diameters from 2 1/2 inches to 8 inches to accommodate systems of many sizes. All are made form durable PVC to offer the benefits of this corrosion resistant, pressure resistant material. This means they can be used indoors and outdoors, in systems using everything from plain water to corrosive chemicals. PVC swing check valves are commonly seen in pumping systems where backflow would damage expensive components. These valves are equipped with EPDM seals and socket ends, which makes installation simple. Customized ends or sizes may be available by custom order.
Swing check valves contain a flap or disc inside the valve that is the same diameter as the interior diameter of the pipe. This flap or disc hangs down to block the flow of the liquid. When fluid flows through the valve in the forward direction, the pressure of the fluid lifts the flap out of the way, allowing the liquid to flow. The hinge pin at the top of the valve ensures that the flap closes when the flow stops, with the weight of the flap itself holding the valve closed. Any backward flow is immediately stopped. All of this happens automatically, so there is no work on the user's part required to make the valve function properly. This process does create turbulence in the fluid because the flap sits on top of the flowing liquid, which creates a larger pressure drop than other valve types.
Valve pvc check
.Types of Check Valves for Wastewater Applications
You will also be interested:
- Soulful sunday blessings
- Pine needle pillow
- Powerpoint design jobs
- Aqua shower curtain
- Machine shop pasadena
- Z490 taichi review
- Fort pierce motorcycle accident