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詳細(xì)介紹
201液位控制器為長期可靠的用于化工廠、煉油廠、其它工業(yè)場合中而設(shè)計(jì)，不銹鋼開關(guān)采用重力返回技術(shù)從而代替彈簧來延長使用壽命。標(biāo)準(zhǔn)配置是全天候防護(hù)，重載、焊接的浮子外室可在
技術(shù)指標(biāo)
介質(zhì)：可兼容性液體
材質(zhì)：外室：鑄鋼或可選擇316SS
浮子及內(nèi)部組件：303SS、304SS、316SS和430SS、可選擇316SS和430SS或全為316SS
溫度范圍：過程：750°F（399℃）。對水銀開關(guān)，過程溫度高于500°F（260℃）時(shí)，對快速開關(guān)，過程溫度高于400°F（204℃）和密封快速過程溫度高于350°F（176.7℃）應(yīng)配有散熱片。
壓力范圍：100°F（37.7℃）時(shí)600psig(41bar)、750°F（399℃）時(shí)500psig(34bar),可用更高級別。
防護(hù)指標(biāo)：NEMA 4X。可選通用型或防爆型。
可重復(fù)性：±1/4"（6.4mm）
開關(guān)類型：單刀雙擲快速開關(guān)、密封開關(guān)或水銀開關(guān)，可選擇雙刀雙擲或雙態(tài)
電氣指標(biāo)：快速開關(guān)：12A@120VAC, 5 A@240VAC，0.5A@125VDC；密封快速開關(guān)：5A@125VAC, 5 A@240VAC，5A@30VDC；水銀開關(guān)：12A@120VAC/DC, 2A@240VAC/DC，可選更高級別接觸點(diǎn)的水銀開關(guān)
電氣連接：旋緊接線端
導(dǎo)管連接：3/4"FNPT內(nèi)螺紋
工藝連接：1"FNPT內(nèi)螺紋和1"孔焊接；可選擇法蘭連接
安裝定位：垂直
設(shè)定點(diǎn)調(diào)節(jié)：±1"（25.4 mm）
重量：33 lb(14.97kg)
機(jī)構(gòu)認(rèn)證：UL 和CSA
比重：最小0.6
型號表
| 型號 | 開關(guān)類型 |
| 201-WT-7810-C1-60 | 快速 SPDT |
| 201-WT-7810HM-C1-60 | 全密封、快速 SPDT |
選型表 – 201系列
| EXAMPLE | 201 | WT | 7810 | 10 | HF | C1 | 60 |
| 201-WT-7810-60 Liquid Level Control, welded carbon steel chamber, weatherproof enclosure, SPDT snap switch, fixed deadband, automatic reset, side/bottom process connections, combination 1" NPT/socket weld hubs, minimum specific gravity 0.60, operating pressure 600 psig (51 bar) at100°F(38°C), 500 psi (34 bar) at750°F(400°C). |
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| ENCLOSURE |
| G |
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| General purpose, NEMA 1 | UL | CSA |
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| WT |
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| Weatherproof, NEMA 3R, 4, 4X. | UL |
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| E |
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| Explosion-proof, NEMA 7, 9, Class I Groups B, C, D, Class II Groups E, F, G (CSA approved Groups C, D, E, F, G only). | UL | CSA | |
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| EV |
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| Explosion-proof, vapor proof, NEMA 7, 9, Class I Groups B, C, D, Class II Groups E, F, G (CSA approved Groups C, D, E, F, G only). | UL | CSA | |
| CIRCUITS |
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| 48XX |
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| Single stage, mercury switch, see chart A. |
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| 48XX | XX |
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| Two stage, mercury switch, see chart A. |
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| 78XX |
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| Single stage, snap switch, see chart B. |
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| 78XX | XX |
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| Two stage, snap switch, see chart B. |
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| 78XXHM |
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| Hermetically sealed snap switch, see chart B. |
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| 98XX |
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| Single stage, high capacity DC snap switch, use heat fins (HF) if process temperature exceeds350°F(177°C), do not exceed450°F(232°C), see chart B. |
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| 98XX | XX |
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| Two stage, high capacity DC snap switch, use heat fins (HF) if process temperature exceeds350°F(177°C), do not exceed450°F(232°C), see chart B. |
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| 10XX |
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| Single stage, high temperature snap switch, continuous rating800°F(425°C), see chart B, 201-C1-60 type rated 500 psi (34 bar), 201-C1-75 type rated at 650 psi (45 bar). |
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| 10XX | XX |
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| Two stage, high temperature snap switch, continuous rating800°F(425°C), see chart B, 201-C1-60 type rated 500 psi (34 bar), 201-C-75 type rated at 650 psi (45 bar). |
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| WELDED CHAMBER CONSTRUCTION COMBINATION 1" NPT/SOCKET WELD HUBS |
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| Refer to chart C below for pressure/temperature ratings. |
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| C1 |
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| Carbon steel body. |
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| 201 |
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| C1 | 60 |
| Minimum specific gravity 0.60 side/bottom process connections, combination 1" NPT/socket weld hub. | UL | CSA | |
| 201 |
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| C1 | 75 |
| Minimum specific gravity 0.75 side/bottom process connections, combination 1" NPT/socket weld hub. | UL | CSA | |
| WELDED CHAMBER CONSTRUCTION WITH FLANGED PROCESS CONNECTIONS |
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| Refer to chart C below for pressure/temperature ratings. |
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| 203 |
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| C1 | 160 |
| 1" 150# flanges side/bottom process connection. | UL | CSA | |
| 203 |
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| C1 | 175 |
| 1" 150# flanges side/bottom process connection. | UL | CSA | |
| 203 |
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| C1 | 360 |
| 1" 300# flanges side/bottom process connection. | UL | CSA | |
| 203 |
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| C1 | 375 |
| 1" 300# flanges side/bottom process connection. | UL | CSA | |
| 203 |
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| C1 | 660 |
| 1" 600# flanges side/bottom process connection. | UL | CSA | |
| 203 |
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| C1 | 675 |
| 1" 600# flanges side/bottom process connection. | UL | CSA | |
| 204 |
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| C1 | 160 |
| 1" 150# flanges side/side process connection. | UL | CSA | |
| 204 |
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| C1 | 175 |
| 1" 150# flanges side/side process connection. | UL | CSA | |
| 204 |
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| C1 | 360 |
| 1" 300# flanges side/side process connection. | UL | CSA | |
| 204 |
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| C1 | 375 |
| 1" 300# flanges side/side process connection. | UL | CSA | |
| 204 |
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| C1 | 660 |
| 1" 600# flanges side/side process connection. | UL | CSA | |
| 204 |
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| C1 | 675 |
| 1" 600# flanges side/side process connection. | UL | CSA | |
| OPTIONS |
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| HF |
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| High temperature fins, should be considered if ambient temperature exceeds500°F(260°C) for extended periods. |
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| 12 | Breather and drain for E type explosion-proof enclosure. Recommended for high humidity or outdoor service. |
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CHARTS A & B - ELECTRICAL CIRCUITS AND RATINGS
| SWITCH TYPE | SWITCH ACTION | ELECTRICAL RATINGS IN AMPS | ORDERING CODE |
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| AC | DC | SINGLE STAGE | TWO STAGE | ||||||||
| 120V | 240V | 440V | 125V | 250V | LOWER | UPPER | |||||
| CHART A | SP-ST open on level FALL | 10 | 5 | 3? | 10 | 5 | -4821 | -4821 | -21 | UL | CSA |
| SP-ST open on level RISE | 10 | 5 | 3? | 10 | 5 | -4820 | -4820 | -20 | UL | CSA | |
| SP-DT one switch | 4 | 2 | 1? | 4 | 2 | -4810 | -4810 | -10 | UL | CSA | |
| SP-DT two switches E.I.* | 10 | 5 | 3? | 10 | 5 | -4815 | -4815 | -15 | UL | CSA | |
| DP-ST two switches E.I.* open on level FALL | 10 | 5 | 3? | 10 | 5 | -4813 | -4813 | -13 | UL | CSA | |
| DP-ST two switches E.I.* open on level RISE | 10 | 5 | 3? | 10 | 5 | -4814 | -4814 | -14 | UL | CSA | |
| DP-DT two SP-DT switches | 4 | 2 | 1? | 4 | 2 | -4806 | -4806 | -06 | UL | CSA | |
| CHART B | SP-DT one switch | 12 | 5 | 3? | 0.5** | 0.25** | -7810 | -7810 | -10 | UL | CSA |
| DP-DT Two SP-DT switches | 12 | 5 | 3? | 0.5** | 0.25** | -7806 | -7806 | -06 | UL | CSA | |
| SP-DT one hermetically sealed switch*** | 5 | 5 |
| 5**
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| -7810HM | -7810HM | -10HM |
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| DP-DT two hermetically sealed SP-DT switches*** | 5 | 5 |
| 5**
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| -7806HM | -7806HM | -06HM |
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| DP-DT two SP-DT switches | 10 | 3 |
| 10? | 3? | -9806 | -9806 | -06 |
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| SP-DT one switch | 10 | 3 |
| 10? | 3? | -9810 | -9810 | -10 |
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| DP-DT two SP-DT switches | 2 | 2 |
| 0.4** | 0.25** | -1006 | -1006 | -06 |
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| SP-DT one switch | 2 | 2 |
| 0.4** | 0.25** | -1010 | -1010 | -10 |
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?Available on special order, change 1st digit in ordering code from 4 to 5 or 7 to 8, i.e., -4820 becomes -5820, -7810 becomes -8810, etc.
?10 amp inductive (polarized) at 125 VDC.
*Electrically Independent.
**Resistive.
***30VDC = 5 resistive.
CHART C
| SERIES | MOUNTING STYLE | MINIMUM SPECIFIC GRAVITY | PRESSURE RATING AT | FLANGE CLASS (psi) | ORDER CODE | |
| 38°C | 400°F | |||||
| 201 | 1" NPT | 0.6 | 600 psi | 500 psi | -- | C1-60 |
| 201 | 1" NPT | 0.75 | 1000 psi | 750 psi | -- | C1-75 |
| 203 | FLANGED | 0.6 | 275 psi | 100 psi | 150 | C1-160 |
| 203 | FLANGED | 0.75 | 275 psi | 100 psi | 150 | C1-175 |
| 203 | FLANGED | 0.6 | 600 psi | 425 psi | 300 | C1-360 |
| 203 | FLANGED | 0.75 | 720 psi | 425 psi | 300 | C1-375 |
| 203 | FLANGED | 0.6 | 600 psi | 500 psi | 600 | C1-660 |
| 203 | FLANGED | 0.75 | 100 psi | 750 psi | 600 | C1-675 |
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