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Mercoid 液位開關(guān) 1241/1243/1244
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產(chǎn)品介紹
Mercoid 液位開關(guān) 1241/1243/1244
不銹鋼浮封閉在一個法蘭碳鋼室是耐用,特色領(lǐng)域證明1241系列。外部側(cè)裝系列包括1"的過程連接作為標準或1"法蘭作為選項。壓力和溫度限制在1440 psi 100°F (38°C)和1275 psi 475°F (246°C)。所有模型的比重是0.60。所示的模型可以與各種電氣下令安排包括SPST、領(lǐng)域或DPDT電路密封快動作或汞接觸。開關(guān)可以下令打開水平上升或下降。單刀雙擲電獨立電路可用以及低電流或高直流電流的應(yīng)用程序。提供全系列的附件包括通用NEMA-1;雨衣NEMA-4X;(防爆)和(防爆-氣密)組B, C, D, E, F, G, NEMA-7-9。
Minimum Specific Gravity:0.60.
Switch Type:Snap action or mercury switch. See charts A and B.Electrical Ratings:
See charts A and B.Wiring Connections:
> G, WT or E enclosure, terminal block;EV enclosure, 18" (460 mm) leads.
Process Connections:1" NPT standard (flanges optional); See model chart.
Enclosure Rating:See model chart.
Enclosure:> G, painted steel and aluminum;
WT, painted steel, aluminum and neoprene;
E, aluminum;EV, aluminum and neoprene.
Wetted Parts:C1 construction. Chamber: carbon steel. Trim: 303SS, 304SS, and 430SS (316SS and 430SS optional).
Weight:1241, 34 lb (15 kg); 1243, 44 lb (20 kg); 1244, 51 lb (23 kg).
Suggested Specifications
Liquid level control shall be 1241 (1243) (1244) Series with flanged carbon steel chamber. Process connections shall be 1" NPT (socket weld hub) (flanged). Unit shall be suitable for operation at 1440 psi (99 bar) at 100°F (38°C); 1275 psi (87.9 bar) at 475°F (246°C) with a minimum specific gravity of 0.60. Switch mechanism shall be gravity return and shall be activated by a stainless steel float. Circuit shall be (hermetically sealed) snap action (mercury) switch, (SPST) (SPDT) (DPDT). Enclosure shall be general purpose (weatherproof) (explosion-proof) (explosionproof) (vapor-proof).
Model Chart
| EXAMPLE | 1241 | WT | 7810 | C1 | 75 | L12 | 1241-WT-7810-10-C1-60 Liquid Level Control, flanged carbon steel chamber, weatherproof enclosure, SPDT snap action switch, fixed deadband, automatic reset. Operating pressure 1440 psig @ 100°F, side/bottom 1" NPT process connections, minimum s.g. 0.60. |
| CONNECTION | 1241 | Side/bottom process connections. 1" NPT hubs. | |||||
| 1243 | 1" 600# flanges side/bottom process connection. | ||||||
| 1244 | 1" 600# flanges side/side process connection. | ||||||
| 1244T | 1244T Liquid Level Control | ||||||
| ENCLOSURES | G | General Purpose, NEMA 1 | |||||
| WT | Weatherproof, NEMA 3R, 4, 4X | ||||||
| E | Explosion-proof, NEMA 7, 9, Class I Groups B, C, D, Class II Groups E, F, G | ||||||
| EV | Explosion-proof/Vapor-proof, NEMA 7, 9, Class I Groups B, C, D, Class II Groups E, F, G | ||||||
| CIRCUITS (for electrical circuits see charts A & B below) | 48XX | Single Stage Mercury Switch, see chart A | |||||
| 48XX-XX | Two Stage, Mercury Switch, see chart A | ||||||
| 78XX | Single Stage, Snap Switch, see chart B | ||||||
| 78XX-XX | Two Stage, Snap Switch, see chart B | ||||||
| 78XXHM | Hermetically Sealed Snap Switch, see chart B | ||||||
| 98XX | Single Stage, High Capacity DC Snap Switch, use heat fins (HF) if process temperature exceeds 350°F (177°C), do not exceed 450°F (232°C), see chart B | ||||||
| 98XX-XX | Two Stage, High Capacity DC Snap Switch, use heat fins (HF) if process temperature exceeds 350°F (177°C), do not exceed 450°F (232°C), see chart B | ||||||
| 10XX | Single stage. High temperature snap switch. Continuous rating 800°F (425°C). See Chart B. 211-C1-60 type rated at 175 psi (12 bar). | ||||||
| 10XX-XX | Two stage. High temperature snap switch. Continuous rating 800°F (425°C). See Chart B. 211-C1-60 type rated at 175 psi (12 bar). | ||||||
| CHAMBER MATERIAL | C1 | Carbon Steel Body | |||||
| HFC1 | Heat Fins & Carbon Steel Body | ||||||
| C216 | 316SS Body | ||||||
| SPECIFIC GRAVITY | 1241 | 60 | 0.60 Specific Gravity (1241 only) | ||||
| 1243,1244 | 660 | 0.60 Specific Gravity & 600# Flange (1243, 1244 only) | |||||
| OPTIONS | R | Manual Reset, Single Stage | |||||
| R1 | Manual Reset, Lower Stage 2-Stage Control | ||||||
| R2 | Manual Reset, Upper Stage 2-Stage Control | ||||||
| R3 | Manual Reset, Both Stages 2-Stage Control | ||||||
| STW | SS Tag Wired | ||||||
| E | 01 | Breather Only (E-Housing only) | |||||
| E | 02 | Drain Only (E-Housing only) | |||||
| E | 12 | Breather & Drain (E-Housing only) | |||||
| 23720 | Fungus Proofing |
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