Bypass Level Indicator
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Catalog excerpts

Bypass Level Indicator - 1

Bypass Level Indicators every move CONTROL PRODUCTS

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Bypass Level Indicator - 2

Mini Bypass Level Indicator 11 Bypass Level Indicators 14

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Bypass Level Indicator - 3

Introduction Principle of Operation The Barksdale Bypass Level Indication System combines the convenience of a sight glass and the strength of a Stainless Steel tube, with the only difference; there is no glass to break or seals to leak. Colourless clean, or even dirt contaminated liquids are indicated by a row of red / white coloured rotating flags and can be seen from great distances. The bypass tube is connected by side / side, or top and bottom connections with the tank. A magnetic float inside the bypass tube rides on the same level as in the tank and operates the coloured flags, the...

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Bypass Level Indicator - 4

Introduction Indication Flags The rotary flags are large in size and brilliant in colour. These square section rotary flags are magnetically interlocked, designed to main-tain their relative position even when subject to significant vibration. They rotate from white to red when the magnet quipped float rises with the liquid level in the bypass tube and clearly indicate the level which can be seen from over thirty meters away. In one meter indication there are 80 flags, corresponding to an accuracy of 1,25% for one meter, or 0,6% for two meter indication length. Aluminum flags are painted...

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Bypass Level Indicator - 5

Float The float equipped with special magnets can freely rotate in the bypass tube and move up and down. The stainless steel versions in 1.4571 VA can be used up to 150 °C, the titanium versions up to 320 °C. The type VA50/15 and TT50/15 floats provide the opportunity of adjusting the weight of the float precisely to the density (g) of the medium and in this way adjusting the indication exactly to the filling level or interfacial level. For pressures above 40 bar the float (TT50/20) is equipped with a pressure compensation facility so that the pressure in the float is always equal to the...

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Bypass Level Indicator - 6

Introduction Protective tubing (Option "PO") For outdoor applications and applications involving dirt and dust formation we recommend to order a protective tubing for the indication rail. This transparent shrink tubing from polyolefine features also good resistance to oil, vapours and gases in the chemical industry and reduces freezing of the surface and ice build-up. Cleaning with water or steam is easy; no solvents are required. Temperature range: -55 °C...+115 °C. Limit switches Two different versions of limit switches are available: GK03, optional in Ex ia GKHT1 (high-temperature...

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Bypass Level Indicator - 7

Introduction Transmitter All bypass level indicators are available with a transmitter either as a potentiometer or a two-wire transmitter with 4...20 mA output. A float with integrated magnet system moves reliably up and down with the fluid. A board equipped with resistors and reed switches is located in the tube of the transmitter. The resistors are connected to form a measuring chain. The reed switches magnetically activated by the float measure a variable d.c. voltage on the measuring chain dependent on the filling level. XM and XMi are designed as simple voltage dividers...

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Bypass Level Indicator - 8

Measuring ranges LM max. 3000 mm in one piece, max. LM in split sections on request LM max. 6000 mm in one piece, max. LM in split sections on request LM max. 6000 mm in one piece, max. LM in split sections on request Indication rail Makrolon (polycarbonate) clear, with white/red indication flags Makrolon (polycarbonate) clear, with white/red indication flags Makrolon (polycarbonate) clear, with white/red indication flags Process connetion (without adaptor) BNA-S21: top and bottom G½'' BNA-S22: side connections BNA-S31: top and bottom G½'' BNA-S32: side connections BNA-S35: top and bottom...

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Bypass Level Indicator - 9

Measuring ranges LM max. 6000 mm in one piece, max. LM in split sections on request LM max. 6000 mm in one piece, max. LM in split sections on request LM max. 6000 mm in one piece, max. LM in split sections on request Indication rail Makrolon (polycarbonate) clear, with white/red indication flags Makrolon (polycarbonate) clear, with white/red indication flags Makrolon (polycarbonate) clear, with white/red indication flags Process connetion (without adaptor) BNA-S41: top and bottom G½'' BNA-S42: side connections BNA-S45: top and bottom G½'' BNA-S46: side connections Service flange: top and...

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Bypass Level Indicator - 10

Measuring ranges LM depends on the buoyancy of the float which in turn depends on the density of the medium (g), max. LM on request Indication rail Makrolon (polycarbonate) clear, with white/red indication flags Process connetion (without adaptor) Bypass tube TT50/300 with ABS tube, min. density: 0.6 g/cm³ Max.permissible pressure float, connections

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Bypass Level Indicator - 11

Mini Bypass Level Indicator BNA-S21/22 The Mini Bypass Level Indicator is the "light" version in the family available with lengths up to 3000 mm, medium This "light version" is easy to handle, ideal to replace sight glasses and low in cost due to the many OEM applications. Measuring ranges max. LM in split sections on request Tanks in which due to their construction internal measurement is impossible, e.g. ship building, sewage Technical Data Process connection Process connection Vent plug Drain plug Subject to technical changes.

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Bypass Level Indicator - 12

Mini Bypass Level Indicator Order Code Type: PN 16, G½ female connections top and bottom, Makrolon indication rail PN 16, side connections, Makrolon indication rail Side connections: R ½" Side process connection Side process connection Side process connection Flange according to DIN 2633 (flange face form C) Flange according to DIN 2527 (flange face form C) Flange according to DIN 2527 (identical in construction to DN 20), however tube OD remains 21.3 mm Flange according to ANSI B 16,5 150 lbs Flange according to ANSI B 16,5 150 lbs Flange according to ANSI B 16,5 150 lbs, however tube OD...

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Bypass Level Indicator - 14

Bypass Level Indicators The Bypass Level Indicator is available with lengths up to 5700 mm, in one piece, medium temperature up to 150 °C max. and pressures up to 16 bar max. Applications Tanks in which due to their construction internal measurement is impossible, e.g. ship building, sewage works. Technical Data Bypass tube: Float: Standard: Stainless steel 1.4571 (SS 316 Ti) PN 16, Ø = 60.3 x 2 mm VA 50/10 in 1.4571, min. density: 0.62 g/cm³ max. temperature: 150 °C media dependent Option: VA 50/15 in 1.4571, with M4 plug min. density: 0.63 g/cm³ max. temperature: 150 °C media dependent TT...

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