Co to jest zasuwa nożowa?

Zasuwa nożowa zawdzięcza swoją nazwę charakterystycznej, ostrej tarczy, której wygląd przypomina nóż. Element ten służy do przecinania płynnych, gęstych substancji, które płyną przez daną rurę czy instalację. Jest on na tyle silny, aby poradzić sobie również z ciałami stałymi – dzięki temu nawet niezwykle ciężkie do przetoczenia materiały mogą sprawnie poruszać się w obrębie instalacji. Tarcza, rozcinając twarde obiekty, umożliwia bezpieczne zamykanie zaworu, co przekłada się na zapewnienie wydajnej i bezproblemowej pracy całego układu. Brak takiego komponentu w odpowiednim miejscu mógłby powodować blokowanie czynnika roboczego, a także pojawienie się nieszczelności w układzie.

Jakie jest zastosowanie zasuwy nożowej z napędem elektrycznym?

Zasuwa nożowa z napędem elektrycznym umożliwia szybką, pewną pracę ze stabilnymi, precyzyjnie dopasowanymi parametrami. To rozwiązanie, które sprawdzi się w wielu branżach i instalacjach różnego rodzaju. Niektóre sektory wymagają jednak specyficznych rozwiązań – dla przykładu przemysł spożywczy często stawia na zasuwy nożowe pneumatyczne. Tego typu produkty są stosowane w zakładach mięsnych, punktach przetwórstwa warzyw i owoców, cukierniach czy browarach. Korzysta się z nich jednak również w cementowniach, hutach, zakładach przetwarzania metalu, biogazowniach, a także w przemyśle chemicznym, papierniczym i górnictwie. Szerokie zastosowanie zasuw automatycznych zapewnia komfortowe użytkowanie wielu istotnych obiektów, na przykład maszyn do mycia i płukania owoców.

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Knife Gate Valve

Knife gate valves, also known as blade gate valves, are primarily used in installations where solid particles or dense substances may be present. This applies to various types of bulk products, sewage, oils, viscous liquids, emulsions, and suspensions. The knife gate valve allows for cutting through these materials, ensuring the efficient operation of the entire system.

The stainless steel knife gate valves for sewage

GTM Knife Gate Valve

Knife Gate Valve

The knife gate valve owes its name to a distinctive sharp disc that resembles a knife. This element is used for cutting through liquid, dense substances flowing through a particular pipe or installation. It is robust enough to handle solid particles as well—thus, even materials that are exceptionally challenging to flow through can move efficiently within the installation. By slicing through hard objects, the disc enables the valve to close safely, ensuring the efficient and trouble-free operation of the entire system. The absence of such a component in the right place could lead to the blockage of the working fluid and the emergence of leaks in the system.

Application of a pneumatic knife gate valve

Components such as knife gate valves are utilized in systems handling sewage, oils, emulsions, viscous liquids, suspensions, and installations dealing with bulk products. Pneumatically operated knife gate valves facilitate the efficient operation of demanding systems. It’s worth emphasizing that the product operates fully automated—all valves within a given installation can cooperate and ensure smooth substance flows.

Electrically driven knife gate valves enable swift and reliable operation with stable, precisely adjusted parameters. This solution proves beneficial across various industries and installations. However, specific sectors require tailored solutions; for instance, the food industry often favors pneumatic knife gate valves. Such products find use in meat processing plants, vegetable and fruit processing points, bakeries, and breweries. Nevertheless, they are also employed in cement factories, steel mills, metal processing facilities, biogas plants, as well as in chemical, paper, and mining industries. The broad application of automatic valves ensures comfortable operation of numerous vital facilities, such as fruit washing and rinsing machines.

Knife gate valves – manufacturer

Within our range, you can find solutions offered by trusted suppliers such as Orbinox, Jafar, Zubi, Sferaco, and CMO, as well as products manufactured by GTM Process Valves. In designing our own knife gate valves, we prioritize the highest level of quality and durability. We exclusively utilize the finest materials, such as gray cast iron GG25, spheroidal cast iron GGG40, as well as steel CF8M (stainless) and GP240GH (carbon). For the blades, we rely on stainless steel which is resistant to corrosion, while for seals, we use materials including EPDM rubber, Teflon, and silicone. Available knife gate valves perform exceptionally well as Wafer or LUG flange connections operating within pressures ranging from 6 to 25 bars. Size is also crucial—we offer products ranging from DN 50 (2 inches) to even DN 1000 (40 inches) so that every customer can find the suitable solution.

Types of knife gate valves

Wide-ranging products of this kind are available within GTM Process Valves’ assortment. The knife gate valve for sewage treatment plants and processing facilities works impeccably. It effectively breaks down any solid, hard objects, allowing the medium to flow freely to the designated point. Once at the site, the sewage is broken down into smaller components, making it easier to subject to further processes. Another product of this type is the knife gate valve for bulk materials, ensuring smooth operation of installations conveying materials such as sand, gravel, or stones. The blades are robust enough to destroy even the toughest elements, enabling their passage to other parts of the system. The driven knife gate valve excels in the industry, providing swift and reliable operation without compromising the system.

It’s also worth mentioning products like the flanged knife gate valve and the between flanges knife gate valve. Both these solutions are used in installations conveying stormwater, sewage, and various pollutants. The blades enclosed within these valves cut obstructive elements, ensuring smooth operation of the system. The underground-installed knife gate valve serves special purposes—underground, a stainless steel knife gate valve resistant to moisture proves highly effective.