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Mercoid 浮球液位開關(guān) 301系列

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產(chǎn)品簡介

可靠的301系列已被證明是一種堅(jiān)固經(jīng)濟(jì)的選擇，適用于側(cè)面安裝不實(shí)用的油罐頂部安裝，或用于油底殼

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可靠的301系列已被證明是一種堅(jiān)固經(jīng)濟(jì)的選擇，適用于側(cè)面安裝不實(shí)用的油罐頂部安裝，或用于油底殼。這些裝置有一個(gè)固定的死區(qū)，用于高或低報(bào)警或關(guān)機(jī)。這種控制可以安裝在任何關(guān)閉或打開的罐或污水坑的頂部，使用3/4" NPT連接。法蘭還有各種通徑、壓力等級和材料可供安裝。浮球可以容納液體0.5的比重和12英尺的深度。 電氣開關(guān)動(dòng)作，SPST, SPDT, DPDT，或DPST，可以訂購，以滿足大多數(shù)應(yīng)用?？煞謨刹讲僮?，請咨詢工廠。密封的快速動(dòng)作或水銀觸點(diǎn)提供高或低電流或電壓要求。外殼包括通用型的NEMA 1，耐風(fēng)雨的NEMA 4，防爆的NEMA 7, 9。防爆、防汽的版本結(jié)合了耐候性、防汽性和防爆的NEMA 4、7、9結(jié)構(gòu)在一個(gè)外殼內(nèi)。301系列可用于壓力容器

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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