ARI-STEVI 470/422
| Application: | Industrial installations, processing technology, plant manufacturing, etc. |
|---|---|
| Medium: | Cooling water, cooling brine, warm water, hot water, steam, gas, etc. |
| Application: | Industrial installations, processing technology, plant manufacturing, etc. |
| Medium: | Refrigerant, cooling water, warm water, hot water, thermal oil, steam, gas, etc. |
| eClass-No.: | 37010203 |
Valve-TableReferenceDetailsCross-section drawingData sheetOperating instructionCADChemical resistance
Legende:
= Approvals
= Approvals
| Figure | PN | DN | Material | Connection | Form | Temperature/*body | Variation | |
|---|---|---|---|---|---|---|---|---|
|
|
12422 | PN 16 | DN200-DN250 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | without actuator |
|
|
12422 | PN 16 | DN200-DN250 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | ARI-PREMIO 12kN |
|
|
12422 | PN 16 | DN200-DN250 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | ARI-PREMIO 15kN |
|
|
12422 | PN 16 | DN200-DN250 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | AUMA SAR07.5 |
|
|
12422 | PN 16 | DN200-DN250 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | AUMA SAR10.1 |
|
|
12422 | PN 16 | DN200-DN250 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | AUMA SAR14.1 |
|
|
12422 | PN 16 | DN200-DN250 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | DP34 |
|
|
12422 | PN 16 | DN200-DN250 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | DP34T |
|
|
12422 | PN 16 | DN200-DN250 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | DP34Tri |
|
|
12462 | PN 16 | DN200-DN250 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | without actuator |
|
|
12462 | PN 16 | DN200-DN250 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | ARI-PREMIO 12kN |
|
|
12462 | PN 16 | DN200-DN250 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | ARI-PREMIO 15kN |
|
|
12462 | PN 16 | DN200-DN250 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | AUMA SAR07.5 |
|
|
12462 | PN 16 | DN200-DN250 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | AUMA SAR10.1 |
|
|
12462 | PN 16 | DN200-DN250 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | AUMA SAR14.1 |
|
|
12462 | PN 16 | DN200-DN250 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | DP34 |
|
|
12462 | PN 16 | DN200-DN250 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | DP34T |
|
|
12462 | PN 16 | DN200-DN250 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | DP34Tri |
|
|
12470 | PN 16 | DN 15-DN150 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | without actuator |
|
|
12470 | PN 16 | DN 15-DN100 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | ARI-PREMIO 2,2kN |
|
|
12470 | PN 16 | DN 25-DN150 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | ARI-PREMIO 5kN |
|
|
12470 | PN 16 | DN 40-DN150 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | ARI-PREMIO 12kN |
|
|
12470 | PN 16 | DN 65-DN150 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | ARI-PREMIO 15kN |
|
|
12470 | PN 16 | DN 40-DN100 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | AUMA SAR07.1 |
|
|
12470 | PN 16 | DN 50-DN150 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | AUMA SAR07.5 |
|
|
12470 | PN 16 | DN 80-DN150 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | AUMA SAR10.1 |
|
|
12470 | PN 16 | DN125-DN150 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | AUMA SAR14.1 |
|
|
12470 | PN 16 | DN 15-DN100 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | DP32 |
|
|
12470 | PN 16 | DN 15-DN100 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | DP33 |
|
|
12470 | PN 16 | DN 40-DN150 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | DP34 |
|
|
12470 | PN 16 | DN125-DN150 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | DP34T |
|
|
12471 | PN 16 | DN 15-DN150 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | without actuator |
|
|
12471 | PN 16 | DN 15-DN100 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | ARI-PREMIO 2,2kN |
|
|
12471 | PN 16 | DN 25-DN150 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | ARI-PREMIO 5kN |
|
|
12471 | PN 16 | DN 40-DN150 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | ARI-PREMIO 12kN |
|
|
12471 | PN 16 | DN 65-DN150 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | ARI-PREMIO 15kN |
|
|
12471 | PN 16 | DN 40-DN100 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | AUMA SAR07.1 |
|
|
12471 | PN 16 | DN 50-DN150 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | AUMA SAR07.5 |
|
|
12471 | PN 16 | DN 80-DN150 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | AUMA SAR10.1 |
|
|
12471 | PN 16 | DN125-DN150 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | AUMA SAR14.1 |
|
|
12471 | PN 16 | DN 15-DN100 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | DP32 |
|
|
12471 | PN 16 | DN 15-DN100 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | DP33 |
|
|
12471 | PN 16 | DN 40-DN150 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | DP34 |
|
|
12471 | PN 16 | DN125-DN150 | EN-GJL-250, EN-JL1040 | flanged | Straight through | -10 °C to 300 °C | DP34T |
|
|
22422 | PN 16 | DN200-DN250 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | without actuator |
|
|
22422 | PN 16 | DN200-DN250 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | ARI-PREMIO 12kN |
|
|
22422 | PN 16 | DN200-DN250 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | ARI-PREMIO 15kN |
|
|
22422 | PN 16 | DN200-DN250 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | AUMA SAR07.5 |
|
|
22422 | PN 16 | DN200-DN250 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | AUMA SAR10.1 |
|
|
22422 | PN 16 | DN200-DN250 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | AUMA SAR14.1 |
|
|
22422 | PN 16 | DN200-DN250 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | DP34 |
|
|
22422 | PN 16 | DN200-DN250 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | DP34T |
|
|
22422 | PN 16 | DN200-DN250 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | DP34Tri |
|
|
22462 | PN 16 | DN200-DN250 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | without actuator |
|
|
22462 | PN 16 | DN200-DN250 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | ARI-PREMIO 12kN |
|
|
22462 | PN 16 | DN200-DN250 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | ARI-PREMIO 15kN |
|
|
22462 | PN 16 | DN200-DN250 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | AUMA SAR07.5 |
|
|
22462 | PN 16 | DN200-DN250 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | AUMA SAR10.1 |
|
|
22462 | PN 16 | DN200-DN250 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | AUMA SAR14.1 |
|
|
22462 | PN 16 | DN200-DN250 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | DP34 |
|
|
22462 | PN 16 | DN200-DN250 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | DP34T |
|
|
22462 | PN 16 | DN200-DN250 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | DP34Tri |
|
|
23470 | PN 25 | DN 15-DN150 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | without actuator |
|
|
23470 | PN 25 | DN 15-DN100 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | ARI-PREMIO 2,2kN |
|
|
23470 | PN 25 | DN 25-DN150 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | ARI-PREMIO 5kN |
|
|
23470 | PN 25 | DN 40-DN150 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | ARI-PREMIO 12kN |
|
|
23470 | PN 25 | DN 65-DN150 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | ARI-PREMIO 15kN |
|
|
23470 | PN 25 | DN 40-DN100 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | AUMA SAR07.1 |
|
|
23470 | PN 25 | DN 50-DN150 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | AUMA SAR07.5 |
|
|
23470 | PN 25 | DN 80-DN150 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | AUMA SAR10.1 |
|
|
23470 | PN 25 | DN125-DN150 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | AUMA SAR14.1 |
|
|
23470 | PN 25 | DN 15-DN100 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | DP32 |
|
|
23470 | PN 25 | DN 15-DN100 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | DP33 |
|
|
23470 | PN 25 | DN 40-DN150 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | DP34 |
|
|
23470 | PN 25 | DN125-DN150 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | DP34T |
|
|
23471 | PN 25 | DN 15-DN150 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | without actuator |
|
|
23471 | PN 25 | DN 15-DN100 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | ARI-PREMIO 2,2kN |
|
|
23471 | PN 25 | DN 25-DN150 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | ARI-PREMIO 5kN |
|
|
23471 | PN 25 | DN 40-DN150 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | ARI-PREMIO 12kN |
|
|
23471 | PN 25 | DN 65-DN150 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | ARI-PREMIO 15kN |
|
|
23471 | PN 25 | DN 40-DN100 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | AUMA SAR07.1 |
|
|
23471 | PN 25 | DN 50-DN150 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | AUMA SAR07.5 |
|
|
23471 | PN 25 | DN 80-DN150 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | AUMA SAR10.1 |
|
|
23471 | PN 25 | DN125-DN150 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | AUMA SAR14.1 |
|
|
23471 | PN 25 | DN 15-DN100 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | DP32 |
|
|
23471 | PN 25 | DN 15-DN100 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | DP33 |
|
|
23471 | PN 25 | DN 40-DN150 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | DP34 |
|
|
23471 | PN 25 | DN125-DN150 | EN-GJS-400-18U-LT, EN-JS1049 | flanged | Straight through | -10 °C to 350 °C | DP34T |
|
|
35422 | PN 40 | DN200-DN250 | GP240GH+N, 1.0619+N | flanged | Straight through | -10 °C to 450 °C | without actuator |
|
|
35422 | PN 40 | DN200-DN250 | GP240GH+N, 1.0619+N | flanged | Straight through | -10 °C to 450 °C | ARI-PREMIO 12kN |
|
|
35422 | PN 40 | DN200-DN250 | GP240GH+N, 1.0619+N | flanged | Straight through | -10 °C to 450 °C | ARI-PREMIO 15kN |
|
|
35422 | PN 40 | DN200-DN250 | GP240GH+N, 1.0619+N | flanged | Straight through | -10 °C to 450 °C | AUMA SAR07.5 |
|
|
35422 | PN 40 | DN200-DN250 | GP240GH+N, 1.0619+N | flanged | Straight through | -10 °C to 450 °C | AUMA SAR10.1 |
|
|
35422 | PN 40 | DN200-DN250 | GP240GH+N, 1.0619+N | flanged | Straight through | -10 °C to 450 °C | AUMA SAR14.1 |
|
|
35422 | PN 40 | DN200-DN250 | GP240GH+N, 1.0619+N | flanged | Straight through | -10 °C to 450 °C | DP34 |
|
|
35422 | PN 40 | DN200-DN250 | GP240GH+N, 1.0619+N | flanged | Straight through | -10 °C to 450 °C | DP34T |
|
|
35422 | PN 40 | DN200-DN250 | GP240GH+N, 1.0619+N | flanged | Straight through | -10 °C to 450 °C | DP34Tri |
|
|
35462 | PN 40 | DN200-DN250 | GP240GH+N, 1.0619+N | flanged | Straight through | -60 °C to 450 °C | without actuator |
|
|
35462 | PN 40 | DN200-DN250 | GP240GH+N, 1.0619+N | flanged | Straight through | -60 °C to 450 °C | ARI-PREMIO 12kN |
|
|
35462 | PN 40 | DN200-DN250 | GP240GH+N, 1.0619+N | flanged | Straight through | -60 °C to 450 °C | ARI-PREMIO 15kN |
|
|
35462 | PN 40 | DN200-DN250 | GP240GH+N, 1.0619+N | flanged | Straight through | -60 °C to 450 °C | AUMA SAR07.5 |
|
|
35462 | PN 40 | DN200-DN250 | GP240GH+N, 1.0619+N | flanged | Straight through | -60 °C to 450 °C | AUMA SAR10.1 |
|
|
35462 | PN 40 | DN200-DN250 | GP240GH+N, 1.0619+N | flanged | Straight through | -60 °C to 450 °C | AUMA SAR14.1 |
|
|
35462 | PN 40 | DN200-DN250 | GP240GH+N, 1.0619+N | flanged | Straight through | -60 °C to 450 °C | DP34 |
|
|
35462 | PN 40 | DN200-DN250 | GP240GH+N, 1.0619+N | flanged | Straight through | -60 °C to 450 °C | DP34T |
|
|
35462 | PN 40 | DN200-DN250 | GP240GH+N, 1.0619+N | flanged | Straight through | -10 °C to 450 °C | DP34Tri |
|
|
35470 | PN 40 | DN 15-DN150 | GP240GH+N, 1.0619+N | flanged | Straight through | -10 °C to 450 °C | without actuator |
|
|
35470 | PN 40 | DN 15-DN100 | GP240GH+N, 1.0619+N | flanged | Straight through | -10 °C to 450 °C | ARI-PREMIO 2,2kN |
|
|
35470 | PN 40 | DN 25-DN150 | GP240GH+N, 1.0619+N | flanged | Straight through | -10 °C to 450 °C | ARI-PREMIO 5kN |
|
|
35470 | PN 40 | DN 40-DN150 | GP240GH+N, 1.0619+N | flanged | Straight through | -10 °C to 450 °C | ARI-PREMIO 12kN |
|
|
35470 | PN 40 | DN 65-DN150 | GP240GH+N, 1.0619+N | flanged | Straight through | -10 °C to 450 °C | ARI-PREMIO 15kN |
|
|
35470 | PN 40 | DN 40-DN100 | GP240GH+N, 1.0619+N | flanged | Straight through | -10 °C to 450 °C | AUMA SAR07.1 |
|
|
35470 | PN 40 | DN 50-DN150 | GP240GH+N, 1.0619+N | flanged | Straight through | -10 °C to 450 °C | AUMA SAR07.5 |
|
|
35470 | PN 40 | DN 80-DN150 | GP240GH+N, 1.0619+N | flanged | Straight through | -10 °C to 450 °C | AUMA SAR10.1 |
|
|
35470 | PN 40 | DN125-DN150 | GP240GH+N, 1.0619+N | flanged | Straight through | -10 °C to 450 °C | AUMA SAR14.1 |
|
|
35470 | PN 40 | DN 15-DN100 | GP240GH+N, 1.0619+N | flanged | Straight through | -10 °C to 450 °C | DP32 |
|
|
35470 | PN 40 | DN 15-DN100 | GP240GH+N, 1.0619+N | flanged | Straight through | -10 °C to 450 °C | DP33 |
|
|
35470 | PN 40 | DN 40-DN150 | GP240GH+N, 1.0619+N | flanged | Straight through | -10 °C to 450 °C | DP34 |
|
|
35470 | PN 40 | DN125-DN150 | GP240GH+N, 1.0619+N | flanged | Straight through | -10 °C to 450 °C | DP34T |
|
|
35471 | PN 40 | DN 15-DN150 | GP240GH+N, 1.0619+N | flanged | Straight through | -60 °C to 450 °C | without actuator |
|
|
35471 | PN 40 | DN 15-DN100 | GP240GH+N, 1.0619+N | flanged | Straight through | -60 °C to 450 °C | ARI-PREMIO 2,2kN |
|
|
35471 | PN 40 | DN 25-DN150 | GP240GH+N, 1.0619+N | flanged | Straight through | -60 °C to 450 °C | ARI-PREMIO 5kN |
|
|
35471 | PN 40 | DN 40-DN150 | GP240GH+N, 1.0619+N | flanged | Straight through | -60 °C to 450 °C | ARI-PREMIO 12kN |
|
|
35471 | PN 40 | DN 65-DN150 | GP240GH+N, 1.0619+N | flanged | Straight through | -60 °C to 450 °C | ARI-PREMIO 15kN |
|
|
35471 | PN 40 | DN 40-DN100 | GP240GH+N, 1.0619+N | flanged | Straight through | -60 °C to 450 °C | AUMA SAR07.1 |
|
|
35471 | PN 40 | DN 50-DN150 | GP240GH+N, 1.0619+N | flanged | Straight through | -60 °C to 450 °C | AUMA SAR07.5 |
|
|
35471 | PN 40 | DN 80-DN150 | GP240GH+N, 1.0619+N | flanged | Straight through | -60 °C to 450 °C | AUMA SAR10.1 |
|
|
35471 | PN 40 | DN125-DN150 | GP240GH+N, 1.0619+N | flanged | Straight through | -60 °C to 450 °C | AUMA SAR14.1 |
|
|
35471 | PN 40 | DN 15-DN100 | GP240GH+N, 1.0619+N | flanged | Straight through | -60 °C to 450 °C | DP32 |
|
|
35471 | PN 40 | DN 15-DN100 | GP240GH+N, 1.0619+N | flanged | Straight through | -60 °C to 450 °C | DP33 |
|
|
35471 | PN 40 | DN 40-DN150 | GP240GH+N, 1.0619+N | flanged | Straight through | -60 °C to 450 °C | DP34 |
|
|
35471 | PN 40 | DN125-DN150 | GP240GH+N, 1.0619+N | flanged | Straight through | -60 °C to 450 °C | DP34T |
Heat exchanger for the heating system of a paper mill in Denmark (with electric control valves and FABA)
Flexibility: internal parts - stem, plug rn(here: perforated plug), seatring - can be rnreplaced independently of each other in situ. |
Safe even under exacting conditions rne.g. blow-proof stem and rnshaft guided plug |