| Fine-Tek EFX By-Pass Level Transmitter (Chamber / Indicator Body) |
| ● GENERAL DESCRIPTION |
| Type | By-Pass Level Indicator / Transmitter |
| Operating Principle | Hydrostatic principle. The chamber is piped externally to a vessel/tank. A magnetic float rises and drops inside the by-pass chamber with the liquid level. Magnetic flags in an external display flip via magnetic attraction as the float passes, giving a visual level readout based on flag color change. |
| Power Requirement (base indicator) | None – purely mechanical/magnetic. Not operated by electricity, so unaffected by power failure. Optional Magnetic Switch and/or Level Transducer (see separate product tables below) add electrical signal output. |
| Applications | High temperature, high pressure, strong acid, strong alkaline and hazardous-location service. Textile dyeing, sewage water processing, power generation, boiler, and petrochemical industries. |
| Key Design Features | Patent No. 137824 – miniature plastic magnetic switch (IP67, anti-corrosive, real-time adjustable).
Patent No. 149292 (DE: L97230220.4; CN: Nr 298 01 501.3) – innovative bottom-end / connecting-flange design with lower center duct so liquid fully drains from the chamber (no residue) – suited to processes requiring frequent liquid change.
Patent No. 135002 – removable duct and connecting flange, flange setting close to both chamber ends to maximize C-C distance, strengthened by large phase weld. |
| Available Body Types | Plastic Standard Type, Metal Standard Type, Blanket Type (insulated), Jacket Type (steam-traced), Heating Type (electric-traced with temperature controller), Antiseptic Type (coated), High Pressure Type |
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| ● MATERIALS |
| Chamber – Plastic Standard Type | PP: φ60.5 x 3.8t | PVDF: φ63 x 3.2t |
| Chamber – Metal Standard / Blanket / Antiseptic-base / High-Pressure-base | φ60.5 x 2.8t (SUS304 or SUS316), unless noted otherwise per type below |
| Chamber – Jacket Type | Inner chamber standard; outer jacket φ76 x 3.0t, 1/2″PT plug, steam-tracing connection 2 x 1/2″ x 5kg/cm² |
| Chamber – Heating Type | φ65 x 3.5t (φ130 outer heating jacket), with electric temperature controller |
| Chamber – Antiseptic Type | φ65 x 2t, coated with PP or PTFE |
| Chamber – High Pressure Type | φ76.3 x 5.5t |
| Body Material Options | PP / PVDF (Plastic types) | SUS304 / SUS316 (Metal types, incl. Blanket/Jacket/Heating/Antiseptic/High Pressure) |
| Float Material | PP, PVDF, SUS316, SUS316L, or Titanium alloy – see Float table under ACCESSORIES |
| Flag Display Housing / Flag Material | Housing SUS304; flag material Engineering plastic, Ceramic, or SUS304; cover Engineering plastics or Glass depending on model – see Flag Display table under ACCESSORIES |
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| ● ELECTRICAL / PERFORMANCE RATINGS BY TYPE |
| Plastic Standard Type |
| Model No. | EF□□□B1H | EF□□□B1K | EF□□□B2K | EF□□□B7H | EF□□□C1H | | Top end | Flat top with 1/2″PT plug | Dual flange with 1/2″PT plug | | Bottom end | Dual flange with 1/2″PT plug | Dual flange with 1/2″PT drain valve | Dual flange with 1/2″PT plug | | Connecting | 3/4″ x 10kg/cm² (Flange) | 3/4″ or 1″PT (Screw) | 3/4″ x 10kg/cm² (Ball Valve) | 3/4″ x 10kg/cm² (Flange) | | C-C Distance | Min. 150mm; Max. 3800mm | | Operation pressure | 5kg/cm² | | Operation temp. | PP: 80°C, PVDF: 120°C | | Chamber | PP: φ60.5 x 3.8t, PVDF: φ63 x 3.2t | | Float type | EFB-2500 (PVDF) / EFB-2510 (PP) | | Material | PP / PVDF | | Flag indicator | EFB-0750 (140°C) | | Ruler | Option |
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| Metal Standard Type |
| Model No. | EF□□□A1H | EF□□□A5M | EF□□□B1H | EF□□□B1K | EF□□□B2K | EF□□□B7H | EF□□□C1H | EF□□□B1L | | Top end | Cap | Flat top with 1/2″PT plug | Dual flange with 1/2″PT plug | Flat top with 1/2″PT plug | | Bottom end | Dual flange +1/2″PT plug | Dual flange +3″ shield pipe | Dual flange +1/2″PT plug | Dual flange +1/2″ drain valve | Dual flange +1/2″ drain valve | Dual flange with 1/2″PT plug | Dual flange + angle pipe | | Bottom flange | 1-1/2″ x 5kg/cm² | 3-1/2″ x 5kg/cm² | 1-1/2″ x 5kg/cm² | 1-1/2″ x 5kg/cm² | 1-1/2″ x 5kg/cm² | 1-1/2″ x 5kg/cm² | — (not given) | | Connecting | A1H/B1H/B1K: 3/4″ x 10kg/cm² (Flange); A5M: 3″ (Hole) | 3/4″ x 10kg/cm² (Flange) | 3/4″PT or 1″PT (Screw) | 3/4″ x 10kg/cm² (Ball Valve) | 3/4″ x 10kg/cm² (Flange) | 3/4″ x 10kg/cm² (Flange) | | C-C Distance | Min.150; Max.5800mm | Min.150; Max.2000mm | Min. 150mm; Max. 5800mm | | Operation pressure | 25kg/cm² (Max. 50kg/cm²) | 20kg/cm² | 20kg/cm² | 10kg/cm² | 25kg/cm² (Max. 50kg/cm²) | 25kg/cm² (Max. 50kg/cm²) | | Operation temp. | SUS304: 140/200/400°C; SUS316: 140/200/400°C | SUS304: 140/200/350°C; SUS316: 140/200/350°C | SUS304/SUS316: 140/200/400°C | SUS304/SUS316: 140/200/400°C | SUS304/SUS316: 140/200/400°C | | Chamber | φ60.5 x 2.8t | | Float type | EFB-2580 | | Material | SUS304 / SUS316 | | Flag indicator | EFB-0700 (200°C), EFB-0740 (400°C), EFB-0750 (140°C) | | Ruler | Option |
* B1L: the by-pass pipe is long enough that a support rack is needed to prevent the pipe from bending. |
| Blanket / Jacket / Heating Type |
| Model No. | Blanket: EF□□□C1H | Jacket: EF□□□C8H | Heating: EF□□□B1H | | Top end | Dual flange with 1/2″PT plug | | Bottom end | Dual flange with 1/2″PT plug | | Connecting | 3/4″ x 10kg/cm² (Flange) | 1-1/4″ x 10kg/cm² | 3/4″ x 10kg/cm² (Flange) | | C-C Distance | Min. 150mm; Max. 5800mm | | Operation pressure | 25kg/cm² (Max. 50kg/cm²) | 20kg/cm² | | Operation temp. | SUS304: 140/200/400°C; SUS316: 140/200/400°C | SUS304: 100°C; SUS316: 100°C | | Chamber | φ60.5 x 2.8t + fireproof insulation cotton | Jacket φ76 x 3.0t, 1/2″PT plug, steam tracing | φ65 x 3.5t / φ130 heating jacket + temperature controller | | Float type | EFB-2580 | | Material | SUS304 / SUS316 | | Flag indicator | EFB-0700 (200°C), EFB-0740 (400°C), EFB-0750 (140°C) | | Ruler | Option |
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| Antiseptic / High Pressure Type |
| Model No. | Antiseptic: EF□A/B□C1H | High Pressure: EF□□□C1H | | Top end | Dual flange | Dual flange with 1/2″PT plug | | Bottom end | Dual flange | Dual flange with 1/2″PT plug | | Connecting | 3/4″ x 10kg/cm² (Flange) | 600Lb or 300Lb | | C-C Distance | Min. 150mm; Max. 3800mm | | Operation pressure | 25kg/cm² (Max. 50kg/cm²) | 100kg/cm² (≤300°C) for 600Lb; 60kg/cm² (>300°C) for 300Lb | | Operation temp. | PP: 80°C, PTFE: 120°C | SUS304: 140°C, SUS316: 140°C | | Chamber | φ65 x 2t, coating PP or PTFE | φ76.3 x 5.5t | | Float type | EFB-2580 + Coating | EFB-2654 | | Material | SUS304 / SUS316 | | Flag indicator | EFB-0700 (200°C), EFB-0740 (400°C), EFB-0750 (140°C) | | Ruler | Option |
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| ● INSTALLATION NOTES |
| Support / Fixed Holder | Required when C-C length exceeds: Plastic type >1.5m; Metal type >3.5m. Distance between fix support/flange must be within 1m (plastic) or 2.5m (metal). |
| Magnetic Switch Position | Must be located near the flag display, surface as close to the outer chamber wall as possible; keep ≥10cm from external magnetic fields; switch wire must point downward. |
| Pre-Installation | Remove dust-proof plug on flange before installation. |
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| ● APPROVALS |
| Marks shown on datasheet cover | DNV·GL (Maritime, Type Approved), Lloyd’s Register (Type Approved), Bureau Veritas (Type Approved Product), ABS (Type Approved Product), SIL, ATEX (Ex), IEC, IECEx, Ex NEPSI, CSA, TS, cULus Listed, UL, CE, CCC, FDA, HART Communication Protocol, OIML. One additional classification-society style mark appears next to UL but is not clearly legible in the source scan. |
| Certification codes available on main body order code (digits 07-08) | 00: None | B0: DNV.GL | C0: ABS | E0: BV (Bureau Veritas) | F0: LR (Lloyd’s Register) | G0: CR (China Classification Society / CR) |
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| ● ORDERING INFORMATION – QUICK REFERENCE (Model Number → Order Code) |
<td style=”border:1px solid #e0e0e0; padding:3px 6px | Plastic Standard Type | Metal Standard Type | | EF□□□B1H | EFX1□□□□-B1C | EF□□□A1H | EFX1□□□□-A1C | | EF□□□B1K | EFX1□□□□-B1G | EF□□□A1L | EFX1□□□□-A1N | | EF□□□B2K | EFX1□□□□-B2G | EF□□□A5M | EFX1□□□□-A5R | | EF□□□B7H | EFX1□□□□-B7C | EF□□□B1H | EFX1□□□□-B1C | | EF□□□C1H | EFX1□□□□-C1C | EF□□□B1K | EFX1□□□□-B1G | | | | EF□□□B2K | EFX1□□□□-B2G | | | | EF□□□B7H | EFX1□□□□-B7C | | | | EF□□□C1H | EFX1□□□□-C1C | | | | EF□□□B1L | EFX1□□□□-B1N | | Blanket Type | Jacket Type | | EF□□□C1H | EFX1A2□□-C1C | EF□□□C8H | EFX1A3□□-C1C | | Heating Type | Antiseptic Type | | EF□□□B1H | EFX1A4□□-B1C | EF□□□C1H | EFX1A1□□-C1C | | High Pressure Type |
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