64系列蒸汽热水锅炉液位开关(McDonne...
适用于家庭、商业、工业蒸汽锅炉
重型的
大锅炉压力：50psi（3.5kg/cm2）
双开关输出
64、64-A、64-B、64-M可选
UL、FM
产品型号: 64
适用于家庭、商业、工业蒸汽锅炉
重型的
大锅炉压力：50psi（3.5kg/cm2）
双开关输出
64、64-A、64-B、64-M可选
UL、FM
| 型 号 | 描 述 |
| 63 | Low water cut-off |
| 63-B | 63 w/ float block |
| 63-BM | 63 w/float block & manual reset |
| 63-M | 63 w/manual reset |
| 64 | Manual reset |
| 64-A | 64 w/quick hook-up fittings |
| 64-B | 64 w/float block |
| 64-M | 64 w/manual reset |
| 61 | Low water cut-off |
| 67 | Low water cut-off |
| 67-G | 67 for millivolt service |
| 67-LQHU | 67 without quick hook-up fittings |
| 67-M | 67 w/manual reset |
| 69 | Low water cut-off w/41⁄8" (105mm) insertion length |
| 69-MV-P | 69 w/millivolt switch |
| 169 | 69 w/31⁄8" (79mm) insertion length |
| 269 | 69 w/21⁄4" (57mm) insertion length |
| 369 | 69 w/13⁄4" (45mm) insertion length |
| 369-MV | 369 w/millivolt switch |
| 469 | 69 w/13⁄16" (30mm) insertion length |
| 569 | 469 w/13⁄16" (30mm) insertion length 4.0 (1.8) |
| w/1⁄4" NPT tapping | |
| 150S | Combination low water cut-off/pump controller |
| 150S-B | 150S w/float block |
| 150S-B-M | 150S-B w/manual reset |
| 150S-BMD | 150S w/float block and max. dif. |
| 150S-BM-MD | 150S-BMD w/manual reset |
| 150S-MD | 150S w/maximum differential |
| 150S-M | 150S w/manual reset |
| 150S-M-MD | 150S-M w/maximum differential |
| 158S | 150S w/2 SPDT switches |
| 159S | 150S w/2 SPST switches |
| 158S-M | 158S w/manual reset |
| 158S | 150S w/2 SPDT switches |
| 157S | 150S low water cut-off w/water column |
| 157S-MD | 157S w/maximum differential |
| 157S-A | 157S w/alternate tappings |
| 157S-A-M | 157S-A w/manual reset |
| 157S-M | 157S w/manual reset |
| 157S-M-MD | 157S-M w/maximum differential |
| 157S-R | 157S w/alternate tappings |
| 157S-R-M | 157S-R w/manual reset |
| 157S-RBP-MD | 157S w/2 integral conductance probes |
| 157S-RL | 157S w/alternate tappings |
| 157S-RL-M | 157S-RL w/manual reset |
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