At higher temperature, the sealing performance is not as good as elastic gate valve or double gate valve;

楔式單閘板電動閘閥

Wedge type single ram electric gate valve

①結構較彈性閘閥簡單；

① The structure is simpler than elastic gate valve;

②在較高溫度下，密封性能不如彈性閘板閥或雙閘板閥好；

② At higher temperature, the sealing performance is not as good as elastic gate valve or double gate valve;

③適用于易結焦的高溫介質(zhì)。

③ It is suitable for high temperature medium easy to coke.

彈性閘板電動閘閥

Elastic ram electric gate valve

它是楔式單閘板的特殊形式。與楔式閘閥比較，在高溫時，密封性能好，且閘板在受熱后不易被卡??；適用于蒸氣、高溫油品及油氣等介質(zhì)，并適用于開關頻繁的部位。不宜用于易結焦的介質(zhì)。

It is a special form of wedge single ram. Compared with wedge gate valve, it has good sealing performance at high temperature, and the gate is not easy to be stuck after heating; It is suitable for steam, high-temperature oil products, oil and gas and other media, and is suitable for places with frequent switching. It is not suitable for medium easy to coke.

雙閘板式電動閘閥

Double gate plate electric gate valve

①密封性能較楔式閘閥好，如密封面的斜角度和閥座配合不十分準確時，仍具有較好的密封性；

① The sealing performance is better than that of wedge gate valve. If the inclined angle of sealing surface and valve seat are not matched accurately, it still has good sealing performance;

②閘板密封面磨損后，將球面頂心底部的金屬墊換為較厚的即可使用，一般不必堆焊和研磨密封面，這點單閘板、彈性閘板難以做到。

② After the sealing surface of the ram is worn, the metal pad at the top and bottom of the spherical core can be replaced with a thicker one. Generally, it is not necessary to weld and grind the sealing surface, which is difficult for single ram and elastic ram.

③零件較其它形式的閘閥多；

③ More parts than other forms of gate valves;

④除適用于蒸氣、油品等介質(zhì)外，還適用于開關頻繁的部位及對密封面磨損較大的介質(zhì)，不宜用于易結焦的介質(zhì)。

④ In addition to steam, oil and other media, it is also suitable for frequent switching parts and media with large wear on the sealing surface. It is not suitable for media prone to coking.

平行式電動閘閥

Parallel electric gate valve

①密封性較其它形式的閘閥差；

① The tightness is worse than other forms of gate valves;

②適用于溫度及壓力較低的介質(zhì)；

② Suitable for medium with low temperature and pressure;

③除在兩塊閘板上裝有固定板的閘板不易脫落外，凡用鉛絲固定兩塊閘板的閘板易于脫落，使用不可靠。

③ Except that the ram equipped with fixed plates on the two rams is not easy to fall off, the Ram fixed with lead wire is easy to fall off and unreliable to use.

④閘板及閥座的密封面的加工及檢修比其它形式的閘閥簡單。

④ The processing and maintenance of the sealing surface of the gate and valve seat are simpler than other forms of gate valves.