Maaaring pagsamahin ang mga polymer pipe at fitting sa ilang paraan, depende sa partikular na uri ng polymer at mga kinakailangan sa aplikasyon. Ang ilang karaniwang paraan ng pagsali sa mga polymer pipe at fitting ay kinabibilangan ng:
Solvent cementing : Ang pamamaraang ito ay nagsasangkot ng paggamit ng solvent upang matunaw ang mga ibabaw ng mga tubo at mga kabit at pagkatapos ay pagsasama-samahin ang mga ito. Ang solvent na semento ay inilalapat sa magkasanib na lugar, at ang mga tubo at mga kabit ay pinindot nang magkasama hanggang sa magtakda ang semento. Ang pamamaraang ito ay karaniwang ginagamit para sa PVC at CPVC pipe at fitting.
Heat fusion : Ang pamamaraang ito ay nagsasangkot ng pag-init sa mga ibabaw ng mga tubo at mga kabit hanggang sa matunaw at magsama ang mga ito. Mayroong dalawang karaniwang uri ng heat fusion: butt fusion at socket fusion. Ang butt fusion ay kinabibilangan ng pag-init ng mga dulo ng mga tubo o mga kabit at pagkatapos ay pagdiin ang mga ito nang magkasama upang bumuo ng isang matatag, permanenteng bono. Ang pagsasanib ng socket ay kinabibilangan ng pag-init ng socket ng isang fitting at pagkatapos ay pagpasok ng tubo sa socket hanggang sa lumamig ang tinunaw na materyal at bumuo ng isang bono.
Mga mekanikal na koneksyon : Ang pamamaraang ito ay nagsasangkot ng paggamit ng mga mekanikal na kabit upang ikonekta ang mga polymer pipe at fitting. Ang mga kabit na ito ay karaniwang gumagamit ng mekanismo ng compression o clamp upang lumikha ng masikip na selyo sa pagitan ng mga tubo at mga kabit. Ang mga mekanikal na koneksyon ay kadalasang ginagamit sa mga aplikasyon kung saan ang mga tubo ay maaaring kailangang i-disassemble at muling buuin.
Electrofusion : Ang pamamaraang ito ay nagsasangkot ng paggamit ng isang electric current upang init ang mga ibabaw ng mga tubo at mga kabit hanggang sa matunaw at magsama ang mga ito. Ang electrofusion ay karaniwang ginagamit para sa high density polyethylene (HDPE) pipe at fitting.
Ang partikular na paraan na ginamit upang pagsali sa mga polymer pipe at fitting ay depende sa uri ng polymer, mga kinakailangan sa aplikasyon, at iba pang mga salik gaya ng laki ng tubo at rating ng presyon. Mahalagang sundin ang mga tagubilin at alituntunin ng tagagawa para sa pagsali sa mga polymer pipe at fitting upang matiyak ang ligtas at maaasahang koneksyon.
narito ang ilang karagdagang detalye tungkol sa mga pamamaraan para sa pagsali sa mga polymer pipe at fitting:
Solvent cementing : Ang paraang ito ay pinakakaraniwang ginagamit para sa PVC at CPVC pipe at fitting. Ang solvent na semento ay karaniwang pinaghalong solvent at resin na natutunaw ang mga ibabaw ng mga tubo at mga kabit at pinagsasama ang mga ito. Ang bono na nilikha ng solvent cementing ay napakalakas at matibay, ngunit maaari itong maapektuhan ng mga kemikal o mataas na temperatura.
Heat fusion : Ang heat fusion ay isang karaniwang paraan para sa pagsali sa mga high density polyethylene (HDPE) pipe at fitting, pati na rin sa ilang iba pang uri ng polymer pipe. Karaniwang ginagamit ang butt fusion para sa mas malalaking pipe, habang ang socket fusion ay ginagamit para sa mas maliliit na pipe at fitting. Ang parehong mga pamamaraan ay nagsasangkot ng pag-init sa mga ibabaw ng mga tubo at mga kabit hanggang sa matunaw ang mga ito at pagkatapos ay pagdiin ang mga ito nang magkasama upang bumuo ng isang malakas na bono. Ang heat fusion ay gumagawa ng napakalakas, permanenteng joint na lumalaban sa mga kemikal at kaagnasan.
Mechanical connections : Mechanical fittings are commonly used for joining polymer pipes and fittings in plumbing and irrigation systems. They can be made of various materials, including plastic, brass, and stainless steel. Mechanical connections are easy to install and can be disassembled if necessary, but they may not be as strong as other methods of joining polymer pipes and fittings.
Electrofusion : This method is used for joining HDPE pipes and fittings. It involves using an electric current to heat a special fitting that contains a heating wire. The heat generated by the wire melts the surfaces of the pipes and fittings, which then fuse together to form a strong, leak proof joint. Electrofusion produces a very strong, permanent bond and is often used in applications where a high level of reliability is required.
When selecting a method for joining polymer pipes and fittings, it is important to consider factors such as the size and pressure rating of the pipes, the type of polymer being used, and the application requirements. It is also important to follow the manufacturer's instructions carefully to ensure a safe and reliable connection.
Here are some additional details about the different types of polymer pipes commonly used and how they are joined together :
Polyvinyl chloride (PVC) pipes : PVC pipes are commonly used for plumbing and irrigation systems. They are joined together using solvent cementing. The solvent cement used for PVC pipes is typically a mixture of PVC resin and a solvent that softens and melts the surfaces of the pipes and fittings, allowing them to bond together.
Chlorinated polyvinyl chloride (CPVC) pipes : CPVC pipes are similar to PVC pipes but are more heat resistant and can be used in higher temperature applications. They are also joined together using solvent cementing, but the solvent used for CPVC pipes is different from the solvent used for PVC pipes.
Polyethylene (PE) pipes : PE pipes are commonly used for gas and water supply lines. They can be joined together using heat fusion methods, such as butt fusion or socket fusion. These methods involve heating the surfaces of the pipes and fittings to the melting point and then pressing them together to form a strong, permanent bond.
High density polyethylene (HDPE) pipes : HDPE pipes are a type of PE pipe that is known for its high strength and durability. They are commonly used for gas and water supply lines, as well as for drainage systems. HDPE pipes are joined together using heat fusion methods, such as butt fusion or electrofusion. These methods create a strong, permanent bond that is resistant to corrosion and chemicals.
Polypropylene (PP) pipes : PP pipes are commonly used for chemical and industrial applications. They are joined together using heat fusion methods or mechanical connections, depending on the specific application requirements.
The method used for joining polymer pipes and fittings will depend on the type of polymer being used, the application requirements, and other factors such as the pipe size and pressure rating. It is important to select the right method for joining polymer pipes and fittings to ensure a safe and reliable connection.
Here are some additional details about the different types of fittings commonly used for joining polymer pipes :
Couplings : Couplings are used to join two pipes of the same size and material together. They can be either solvent welded or mechanically connected, depending on the specific application requirements.
Elbows : Elbows are used to change the direction of a pipeline. They are available in various angles, such as 45 degrees or 90 degrees. Elbows can be either solvent welded or mechanically connected, depending on the specific application requirements.
Tees : Tees are used to join three pipes together at a T shaped intersection. They can be either solvent welded or mechanically connected, depending on the specific application requirements.
Flanges : Flanges are used to connect pipes or fittings to other equipment, such as pumps or valves. They are commonly used in industrial applications and are typically bolted together to create a strong, leak proof connection.
Valves : Valves are used to control the flow of fluids or gases in a pipeline. They can be made of various materials, including plastic and metal, and can be either manual or automatic.
The specific type of fitting used for joining polymer pipes will depend on the application requirements, the type of polymer being used, and other factors such as the pipe size and pressure rating. It is important to select the right type of fitting and to follow the manufacturer's instructions carefully to ensure a safe and reliable connection.
