?密封性能良好，使工作環境中的空氣不能進入內部對于工作在高溫下的系統，密封性好的液壓閥可以承受很高的壓力，不會產生泄漏這意味著液壓閥可以承受更大的壓力(100MPa)工作溫度高(超過350)℃）液壓閥包括閥體和閥座、閥體和閥蓋、閥體連接器、密封件和連接環；閥體連接器為螺母或閥體緊固件；密封圈為聚四氟乙烯，機械強度高，耐熱、耐酸堿、耐腐蝕性好；耐高溫、耐低溫(-260℃);密封件不會老化或泄漏；耐高溫；低溫下延展性強，抗蠕變性強；密封面非常耐磨，抗沖擊強度和耐高溫性好。
閥體連接件由鋼或合金鋼制成；襯墊是良好的選擇；連接方式選擇通過螺栓連接；或在接頭中使用螺栓密封體來防止閥門在工作時泄漏液體或氣體等介質（如油和水）在環境中壓力為1-2kpa時是無泄漏的；耐腐蝕性好；可承受高溫和極端溫度；在低溫下仍然能正常工作；密封件具有良好的密封性能，使連接件之間不會發生泄漏，因此易于維護和維修。
主要特點：產品密封性好、耐低溫、使用壽命長等特點為國內外高壓設備提供了可靠產品和服務！1)產品：液壓調節器和控制閥門等產品;2)有各種結構、密封和閥配件;3)具有自動切換功能和自我保護功能;4)有連接件可確保閥門或換向器安裝固定平穩和連續地工作；具有自動檢測故障功能；可進行維護保養和更換新部件；具有故障報告卡及操作手冊；具有記錄設備數據接口功能；各種技術文件；并具有相關文件打印功能；在不同介質中有不同顏色說明等其他性質（如標記);具有標記；通過電子信號和控制系統信息查詢功能；具有自檢功能以及安裝調試功能；還具有故障診斷功能。
90-R-075-KP-1-NN-80-P-3-S1-D-03-GBA-17-17-20 90R075KP1NN80P3S1D03GBA171720 90-R-075-KP-1-NN-80-P-3-S1-D-03-GBA-23-23-24 90R075KP1NN80P3S1D03GBA232324 90-R-075-KP-1-NN-80-P-3-S1-D-03-GBA-29-29-24 90R075KP1NN80P3S1D03GBA292924 90R075-KP-1-NN-80-P-3-S1-D-03-GBA-29-29-24 90R075KP1NN80P3S1D03GBA292924 90-R-075-KP-1-NN-80-P-3-S1-D-03-GBA-32-32-24 90R075KP1NN80P3S1D03GBA323224 90-R-075-KP-1-NN-80-P-3-S1-D-03-GBA-35-35-24 90R075KP1NN80P3S1D03GBA353524 90-R-075-KP-1-NN-80-P-3-S1-D-03-GBA-38-38-24 90R075KP1NN80P3S1D03GBA383824 90-R-075-KP-1-NN-80-P-3-S1-E-03-GBA-38-38-24 90R075KP1NN80P3S1E03GBA383824 90-R-075-KP-1-NN-80-P-4-C6-C-03-GBA-38-38-24 90R075KP1NN80P4C6C03GBA383824 90-R-075-KP-1-NN-80-P-4-C6-C-03-GBA-38-38-24-F032 90R075KP1NN80P4C6C03GBA383824F032 90-R-075-KP-1-NN-80-P-4-S1-E-03-GBA-20-20-24 90R075KP1NN80P4S1E03GBA202024 90-R-075-KP-1-NN-80-P-4-S1-E-03-GBA-26-26-24 90R075KP1NN80P4S1E03GBA262624 90-R-075-KP-1-NN-80-P-4-T2-D-03-GBA-29-29-24 90R075KP1NN80P4T2D03GBA292924 90-R-075-KP-1-NN-80-R-3-S1-D-03-GBA-35-35-24 90R075KP1NN80R3S1D03GBA353524 90-R-075-KP-1-NN-80-R-3-S1-E-03-GBA-29-29-24 90R075KP1NN80R3S1E03GBA292924 90-R-075-KP-1-NN-80-R-3-T2-D-09-GBA-40-40-24 90R075KP1NN80R3T2D09GBA404024 90-R-075-KP-1-NN-80-R-4-S1-C-03-GBA-35-35-24 90R075KP1NN80R4S1C03GBA353524 90-R-075-KP-1-NN-80-R-4-S1-D-03-EBC-35-35-24 90R075KP1NN80R4S1D03EBC353524 90-R-075-KP-1-NN-80-S-3-C6-E-03-GBA-35-35-24 90R075KP1NN80S3C6E03GBA353524 90-R-075-KP-1-NN-80-S-3-C7-D-03-GBA-42-42-24 90R075KP1NN80S3C7D03GBA424224 90R075-KP-1-NN-80-S-3-S1-D-03-GBA-26-26-20 90R075KP1NN80S3S1D03GBA262620 90-R-075-KP-1-NN-80-S-3-S1-D-03-GBA-26-26-20 90R075KP1NN80S3S1D03GBA262620 90-R-075-KP-1-NN-80-S-3-S1-D-03-GBA-35-35-24 90R075KP1NN80S3S1D03GBA353524 90-R-075-KP-1-NN-80-S-3-S1-D-03-GBA-42-42-24 90R075KP1NN80S3S1D03GBA424224 90-R-075-KP-1-NN-80-S-3-S1-E-03-GBA-35-35-24 90R075KP1NN80S3S1E03GBA353524 90-R-075-KP-1-NN-80-S-4-C6-E-03-EBC-32-32-20 90R075KP1NN80S4C6E03EBC323220 90-R-075-KP-1-NN-80-S-4-S1-D-03-GBA-26-26-24 90R075KP1NN80S4S1D03GBA262624 90-R-075-KP-1-NN-80-S-4-S1-D-03-GBA-35-35-24 90R075KP1NN80S4S1D03GBA353524 90-R-075-KP-1-NN-80-S-4-S1-E-03-GBA-32-32-24 90R075KP1NN80S4S1E03GBA323224 90-R-075-KP-2-AB-80-R-3-S1-C-03-GBA-42-42-20 90R075KP2AB80R3S1C03GBA424220。
