2.1
| Pressure relief-, Backpressure-, Pressure sequence-, Accumulator unloading valves
| | | | |
| 2.1-502 | Overview | | | | |
| 2.1-510 | Pressure relief cartridge pilot operated | BV.PM18 | M18 | x | x |
| 2.1-520 | Pressure relief cartridge direct operated | BS.PM18 | M18 | x | x |
| 2.1-530 | Pressure relief cartridge pilot operated | BV.PM22 | M22 | x | x |
| 2.1-532 | Safety valve pilot operated | BVTPM22 | M22 | x | x |
| 2.1-534 | Pressure relief cartridge pilot operated hydraulic vented | BV.PM22-Z9 | M22 | x | |
| 2.1-536 | Pressure relief cartridge pilot operated electric vented | BVEPM22 | M22 | x | x |
| 2.1-540 | Pressure relief cartridge direct operated | BA.PM22 | M22 | x | x |
| 2.1-542 | Pressure relief cartridge direct operated | BK.PM22 | M22 | x | x |
| 2.1-544 | Pressure relief cartridge direct operated | BX/BY.PM22 | M22 | x | x |
| 2.1-546 | Pressure sequence cartridge pilot operated | FV.PM22 | M22 | x | |
| 2.1-548 | Accumulator unloading cartridge pilot operated | US.PM22 | M22 | x | |
| 2.1-600 | Pressure relief flange and sandwich construction pilot/direct operated | B..S/FA03 | NG3-Mini | x | |
| 2.1-620 | Pressure relief flange and sandwich construction pilot/direct operated | B..S/FA04 | NG4-Mini | x | |
| 2.1-640 | Pressure relief flange and sandwich construction pilot/direct operated | B..S/FA06 | NG6 | x | x |
| 2.1-660 | Pressure relief flange and sandwich construction pilot/direct operated | B..S/FA10 | NG10 | x | |
| 2.1-700 | Backpressure valve sandwich construction pilot/direct operated | G..SA03 | NG3-Mini | x | |
| 2.1-720 | Backpressure valve sandwich construction pilot/direct operated | G..SA04 | NG4-Mini | x | |
| 2.1-740 | Backpressure valve sandwich construction pilot/direct operated | G..SA06 | NG6 | x | x |
| 2.1-760 | Backpressure valve sandwich construction pilot/direct operated | G..SA10 | NG10 | x | |
| 2.1-820 | Pressure sequence valve sandwich construction pilot operated | FV.SA04 | NG4-Mini | x | |
| 2.1-840 | Pressure sequence valve sandwich construction pilot operated | FV.SA06 | NG6 | x | |
| 2.1-860 | Pressure sequence valve sandwich construction pilot operated | FV.SA10 | NG10 | x | |
| 2.1-920 | Accumulator unloading valve sandwich construction with 1-point adjustment | US.SA04 | NG4-Mini | x | |
| 2.1-940 | Accumulator unloading valve sandwich construction with 1-point adjustment | US.SA06 | NG6 | x | |
| 2.1-950 | Accumulator unloading valve with 2 adjustable shifting points | ASPLV62 | NG6 | x | |
| 2.1-960 | Accumulator unloading valve sandwich construction with 1-point adjustment | US.SA10 | NG10 | x | |
| 2.1-970 | Accumulator unloading valve with 2 adjustable shifting points | ASPLV102 | NG10 | x | |
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