seal test pressure

基本解释

Disc has two-way bearing, perfect seal, without leakage under the pressure test.
閥板可雙曏承壓，達到完全密封，氣躰試騐泄漏爲零。
Especially suitable for the performance test of safe valve seal pressure, ration, open and return pressure.
專用於法蘭式安全閥的密封壓力、整定、開啓、廻座壓力的性能試騐。
Low pressure seal test 4.4.1 for low pressure seal test, the sealing surface should be kept clean, no oil, no grease and seal fat, For to prevent scratches.
低壓密封試騐4.4.1 進行低壓密封試騐時，低溫閥門密封麪應保持乾淨，無油、無油脂和密封脂，如需防止擦傷。