This positions the relief valve below the first check valve, enabling the zone to drain through the relief valve outlet.
在这种位置，安全阀位于第一止回阀下面，使得这个区能够通过安全阀出口排放。
Clean, adjust relief valve -, check for worn and dirty valve.
清洁，调节安全阀，检查是否有磨损和肮脏的阀门。
Check valve and relief valve on the output of the gear pump tube had better install a check valve.
止回阀与安全阀在齿轮泵的输出管路上最好安装一个止回阀。
Requirements: the pressure differential relief valve must operate to maintain the "zone" between the two check valves at least 2 PSI less than the supply pressure.
要求：压差安全阀必须具有将两个止回阀之间的“区域”压力维持在比供应压力低至少2 PSI的功能。
If the input pressure has reached requirements, should check air filter relief-pressure valve regulation is correct, table press show you could meet the cutting requirements.
如输入气压已达要求，应检查空气过滤减压阀的调节是否正确，表压显示能否满足切割要求。
A pressure differential relief valve is located in a zone between the check valves.
压差安全阀位于止回阀之间的区内。
And through practice, it was identified that this system could check the quality and diagnose the flaw of transformer pressure relief valve, thus reduce hidden perils of power system.
实践证明，该系统可验证变压器压力释放阀的质量，能及时诊断出有缺陷的压力释放阀，减少了电网的事故隐患。
Seats and seat discs shall be replaceable in both check valves and the relief valve without the use of special tools.
两个止 回阀和安全阀的阀座和阀座阀瓣应该是可更换的，更换过程不需要特殊工具。
Seats and seat discs shall be replaceable in both check valves and the relief valve without the use of special tools.
两个止 回阀和安全阀的阀座和阀座阀瓣应该是可更换的，更换过程不需要特殊工具。
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