A parallel slide gate valve is a kind of valve. It is designed to transmit flow through a piping system. Unlike other injap pintu, this type is easy to install and requires little space along the pipe axis.
Injap ini digunakan dalam industri kimia, industri petroleum, dan industri gas asli. Biasanya, injap ini dipalsukan, tetapi ia juga boleh dibuang. Ia diperbuat daripada logam yang dikeraskan dan sesuai untuk kedua-dua aplikasi aliran bendalir on-and-off.
Injap ini mempunyai ketahanan yang tinggi dan sangat mudah dibersihkan. Walau bagaimanapun, ia perlu dibuka dan ditutup dengan berhati-hati. Oleh kerana sifat mekanisme pengedap, adalah penting untuk memastikan tempat duduk didudukkan dengan betul. Jika tempat duduk berubah bentuk, tekanan daripada bendalir boleh menyebabkan kebocoran.
Are Parallel Slide Gate Valves Easy to Operate?
Injap pintu gelongsor selari sangat mudah dikendalikan. Ia boleh dikendalikan oleh roda tangan, penggerak pneumatik, atau motor elektrik. Menggunakan roda tangan, pengendali menggunakan tork pada batang.
Akibatnya, ciri pengendalian injap adalah serupa dengan injap pintu yang lain. Ini kerana injap beroperasi dengan tenaga yang rendah, yang menjadikan proses pengepaman lebih cekap.
Terdapat banyak kelebihan menggunakan injap pintu gelongsor selari. Salah satu yang paling ketara ialah keupayaannya untuk menutup seluruh permukaan. Kelebihan lain ialah keupayaannya untuk dijadikan selamat daripada kebakaran.
Bagaimanakah Injap Gerbang Slaid Selari Berfungsi?
Injap pintu gelongsor selari digunakan untuk mengawal aliran cecair dalam sistem perpaipan. Ia menyediakan pengasingan sistem paip dan biasanya digunakan dalam industri kimia dan penjanaan kuasa. Injap boleh digerakkan oleh motor pneumatik atau elektrik. Reka bentuknya yang padat menjadikannya sesuai untuk digunakan dalam saluran paip.
Injap direka untuk mengekalkan pengedapnya di bawah kedua-dua keadaan tekanan tinggi dan rendah. Ia juga sesuai untuk perkhidmatan di bawah suhu yang sangat tinggi. Reka bentuk anti-statik juga disediakan. Gasket grafit fleksibel juga digunakan untuk reka bentuk selamat kebakaran.
Mata air pada injap mengekalkan tempat duduk hulu dan hilir dalam sentuhan gelongsor. Ini mengurangkan tork operasi. Apabila tekanan dilegakan, kerusi injap diset semula secara automatik. Dengan cara ini, pengedapan dicapai di seluruh permukaan.
Where Are Parallel Slide Gate Valves Used?
A parallel slide gate valve is a type of valve used to control fluid flow in a piping system. The valve is made of two discs that are connected through a stem.
It is mainly used for regulating fluid flow in oil and gas applications. These types of valves are easy to disassemble, clean, and repair.
A parallel slide gate valve can be driven by an electric motor or a handwheel.
Normally, the handwheel is placed above the stem and the valve can be operated manually, pneumatically, or electro-hydraulically.
Moreover, parallel slide gate valve applications include the following:
1. Power Generation
Parallel slide gate valves find extensive applications in power plants, particularly in steam and water systems.
They play a crucial role in regulating and isolating fluid flow within power generation processes, ensuring efficient and controlled operation.
2. Industri Minyak dan Gas
In the oil and gas sector, parallel slide gate valves are employed for various purposes, including flow control and isolation in pipelines.
Their robust design and reliable performance make them suitable for handling the challenging conditions often encountered in oil and gas operations.
3. Refining and Petrochemicals
In refining and petrochemical facilities, parallel slide gate valves are utilized for controlling the flow of different fluids in refining processes.
Their ability to handle high temperatures and pressures makes them well-suited for applications where precise control and tight shut-off are essential.
4. Water Treatment Plants
Parallel slide gate valves are integral components in water treatment plants.
They are employed for regulating the flow of water in different stages of the treatment process, ensuring effective treatment and distribution of clean water to various points in the system.
5. Chemical Processing
Chemical plants often use parallel slide gate valves for managing the flow of various chemicals and fluids in different stages of the production process.
The valves’ design allows for reliable and precise control, contributing to the efficiency and safety of chemical processing operations.
6. Sistem HVAC
Heating, ventilation, and air conditioning (HVAC) systems incorporate parallel slide gate valves for controlling the flow of air, water, or other fluids.
These valves help in maintaining optimal conditions within HVAC systems, contributing to energy efficiency and temperature control.
7. Marine and Shipbuilding
In marine and shipbuilding applications, parallel slide gate valves are utilized for controlling fluid flow in different systems onboard vessels.
Their durable construction and ability to withstand harsh marine environments make them suitable for marine engineering.
8. General Industrial Applications
Parallel slide gate valves find widespread use in various industrial settings where precise flow control, reliable shut-off, and durability are paramount.
Their versatility makes them valuable in diverse applications across different industries, contributing to efficient and safe fluid-handling processes.
Types of Slide Parallel Gate Valves
There are several kinds of parallel slide gate valves. These depend on torque force to wedge the disc into the valve body.
Moreover, common types of slide parallel gate valves include rising stem and non-rising stem variations.
The rising stem design features a stem that moves upward when the valve is opened, providing a visual indication of the valve’s status.
In contrast, non-rising stem valves have a stem that remains stationary while the gate moves.
Both types are available with various materials and configurations to suit different applications, offering reliable performance in industries such as power generation, oil and gas, water treatment, and more.
Are Slide Parallel Gate Valves Easy to Install?
Generally, parallel-slide gate valves are compact and easy to install. Their elongated stem prevents thermal deformation and ensures strong sealing.
With their wide flat seating, they minimize the effect of minor damages on the surface.
Parallel slide gate valves are often used for applications requiring high differential pressure.
However, they are not recommended for service under hazardous conditions.
Bawa Pulang Utama
Parallel slide gate valves are pivotal in industries like power generation, oil and gas, and water treatment.
They come in rising and non-rising stem variations, providing flexibility for diverse applications.
The rising stem offers visual indication, while the non-rising stem caters to space constraints.
Both types boast robust construction and versatility, making them reliable choices for controlling the flow of liquids in critical processes, ensuring operational efficiency and durability in demanding environments.
