力士乐泵体上装有安全阀，当排出压力超过规定压力时，输送液体可以自动顶开安全阀，使高压液体返回吸入管。
常规型号：
R901230023 PGZ4-1X/020RR07VB3力士乐齿轮泵
R901230022 PGZ4-1X/020RT07VB2力士乐齿轮泵
R901230021 PGZ4-1X/020RT07VU2力士乐齿轮泵
R901230024 PGZ4-1X/032RA07VE4
R901388516 PGZ4-1X/032RA07VE4-C3.1
R901370661 PGZ4-1X/032RA07VU2-A485
R901230026 PGZ4-1X/032RT07VB2
R901230025 PGZ4-1X/032RT07VU2
R901230028 PGZ4-1X/040RA07VE4
R901252670 PGZ4-1X/040RA07VU2-A485
R901230031 PGZ4-1X/040RR07VB3
R901230030 PGZ4-1X/040RT07VB2力士乐齿轮泵
R901230022 PGZ4-1X/020RT07VB2力士乐齿轮泵
R901230021 PGZ4-1X/020RT07VU2
R901230024 PGZ4-1X/032RA07VE4
R901388516 PGZ4-1X/032RA07VE4-C3.1
R901370661 PGZ4-1X/032RA07VU2-A485
R901230026 PGZ4-1X/032RT07VB2
R901230025 PGZ4-1X/032RT07VU2
R901230028 PGZ4-1X/040RA07VE4
R901252670 PGZ4-1X/040RA07VU2-A485
R901230031 PGZ4-1X/040RR07VB3
R901230030 PGZ4-1X/040RT07VB2
R901230029 PGZ4-1X/040RT07VU2
R901230032 PGZ4-1X/050RA07VE4
R901424383 PGZ4-1X/050RA07VE4-C3.1
