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    mercoid顶部安装浮球液位开关301

    产品型号： 301
    品  牌： mercoid
    • ≧1 台
      ￥15200.00
    所 在 地： 陕西西安
    更新日期： 2025-04-29
    详细信息
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     品牌：mercoid  加工定制：否  型号：301  
     类型：浮球  测量范围：10  测量精度：2  
     工作温度：150 ℃ 材质：不锈钢  测量精度：2  

    可靠的301系列已被证明是一种坚固经济的选择，适用于侧面安装不实用的油罐顶部安装，或用于油底壳。这些装置有一个固定的死区，用于高或低报警或关机。这种控制可以安装在任何关闭或打开的罐或污水坑的顶部，使用3/4" NPT连接。法兰还有各种通径、压力等级和材料可供安装。浮球可以容纳液体0.5的比重和12英尺的深度。 电气开关动作，SPST, SPDT, DPDT，或DPST，可以订购，以满足大多数应用。可分两步操作，请咨询工厂。密封的快速动作或水银触点提供高或低电流或电压要求。外壳包括通用型的NEMA 1，耐风雨的NEMA 4，防爆的NEMA 7, 9。防爆、防汽的版本结合了耐候性、防汽性和防爆的NEMA 4、7、9结构在一个外壳内。301系列可用于压力容器

    Minimum Specific Gravity:Dependent on float size and rod length. See Dimensional Drawing.

    Temperature Limits:Ambient Temperature: 212°F (100°C); Process Temperature: up to 500°F (260°C). See model chart.

    Switch Type:Snap action or mercury. See Electrical Circuits and Ratings on model chart page.

    Electrical Rating:See Electrical Circuits and Ratings on Model Chart page.

    Wiring Connection:G, WT or E enclosure, terminal board. EV enclosure 18" (460 mm) leads.

    Enclosures:G: painted steel and aluminum; WT: painted steel, aluminum and neoprene; E: aluminum; EV: aluminum and neoprene.

    Wetted Parts:See Model Chart.

    Approximate Weight:301G, WT with 4-1/2" SS float, 8 ft. rod, 5" 125# cast iron flange: approximately 35 lb (16 kg) with E, EV enclosure: 39 lb (17.7 kg).

    Suggested Specification:Liquid level control shall be top mount, float operated with fixed deadband for alarm service, (insertion depth, float and flange type to be specified). Circuit shall be hermetically sealed (SPST) (SPDT) DPDT snap action (mercury) switch. Enclosure shall be general purpose (weatherproof) (explosion-proof) (explosion-proof - vapor proof).

    Model Chart

    EXAMPLE 301 G 4810 AS 15 1.0 2 STW 301-G-4810-AS-15-1.0-2-STW Top mount Float Type Level Control, NEMA 1 enclosure, single stage mercury switch, 3-1/2" x 6" 304SS float, 316SS stops, 304SS extension, 1.0 specific gravity, 4" 125# cast iron flange, with SS tag.
    SERIES 301               Top Mount Float Type Level Control
    ENCLOSURE   G             General Purpose, NEMA 1
      WT             Weather tight, NEMA 1, 2, 3, 4, 4X
      E             Explosion-proof, NEMA 7, 9, Class I Groups B, C, D, Class II Groups E, F, G, Div. I & II; CSA approved Groups C, D, E, F, G only
      EV             Explosion-proof/Vapor-proof, NEMA 7, 9, Class I Groups B, C, D, Class II Groups E, F, G, Div. I & II; CSA approved Groups C, D, E, F, G only
    CIRCUITS     48XX           Single Stage Mercury Switch, see chart A
        78XX           Single Stage, Snap Switch, see chart A
        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
    FLOAT/
    STOP/
    GUIDE ROD    		       00         No Float, No Guide Rod
          AS         3-1/2" x 6" 304SS Float, 316SS Stops, 304SS Extension
          BS         4-1/2" Copper Float, 316SS Stops, 304SS Extension
          CS         4-1/2" 304SS Float, 316SS Stops, 304SS Extension
          DS         7" 304SS Float, 316SS Stops, 304SS Extension
          ES         7" Copper Float, 316SS Stops, 304SS Extension
          A0         3-1/2" x 6" 304SS Float, 316SS Stops, No Extension
          B0         4-1/2" Copper Float, 316SS Stops, No Extension
          C0         4-1/2" 304SS Float, 316SS Stops, No Extension
          D0         7" 304SS Float, 316SS Stops, No Extension
          E0         7" Copper Float, 316SS Stops, No Extension
    OPERATING
    POINT    		         XX       ≥12 or ≤96. See Dimensional Drawing.
    SPECIFIC
    GRAVITY    		           1.0     1.0 Specific Gravity
              .9     0.9 Specific Gravity
              .82     0.82 Specific Gravity
              .75     0.75 Specific Gravity
              .62     0.62 Specific Gravity
              .50     0.50 Specific Gravity
    FLANGE             0   No Flange
                7   4" 150# RF Carbon Steel
                8   5" 150# RF Carbon Steel
                9   6" 150# RF Carbon Steel
                10   8" 150# RF Carbon Steel
                12   4" 300# RF Carbon Steel
                13   5" 300# RF Carbon Steel
                14   6" 300# RF Carbon Steel
                15   8" 300# RF Carbon Steel
                7S   4" 150# RF 316SS
                8S   5" 150# RF 316SS
                9S   6" 150# RF 316SS
                10S   8" 150# RF 316SS
                12S   4" 300# RF 316SS
                13S   5" 300# RF 316SS
                14S   6" 300# RF 316SS
                15S   8" 300# RF 316SS
    OPTIONS               HF Heat Fins
                  R Manual Reset - Single Stage
                  R1 Manual Reset - Lower Stage 2-Stage Control
                  STW SS Tag Wired
                  01 Breather Only (E-Housing only)
                  02 Drain Only (E-Housing only)
                  12 Breather and Drain (E-Housing only)
                  14210.40 Spec. 14210 for Sch 40
                  14210.80 Spec. 14210 for Sch 80
                  23720 Fungus Proofing

    *Not supplied if insertion depth is less that 15".

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