The Shridhan CFS Series comprises Cable Suspended Float Operated Level Switches for reliable liquid level detection and automatic level control.
The dual-chambered polypropylene float contains a micro switch and steel-ball mechanism that operates when the float tilts with changing liquid level.
Suitable for liquid level monitoring, pump control and automatic operation of pumps, submerged pumps, solenoid valves and alarms in applications such as sumps, sewage and factory drainage.
✅ Genuine Shridhan product with manufacturer warranty
✅ ProSens Automation — Coimbatore, Erode & Salem
The Shridhan CFS Series Cable Suspended Float Operated Level Switch is a simple, user-friendly and reliable level switch designed for liquid level detection and automatic level control.
The CFS uses a dual-chambered, injection-moulded polypropylene float with an internal micro switch and moving steel-ball mechanism. As the liquid level changes, the float tilts around its pivot and the steel ball operates the micro switch to open or close the electrical circuit.
The switching differential can be adjusted by changing the position of the adjustable stopper. The level switch uses an integral three-core flexible electrical cable with PVC or Neoprene outer insulation.
The CFS Series is intended for applications including liquid level monitoring, pump control, potable water, sewage, factory drainage and liquids containing sludge or suspended solids.
The CFS float is connected directly to an electrical cable. A fixed micro switch and moving steel ball are enclosed within the float casting.
When the liquid level changes, the float tilts up or down around a pivot formed by an adjustable stopper or support pipe. This movement causes the steel ball to move and operate the micro-switch plunger.
The micro switch then opens or closes the electrical circuit through potential-free contacts. These contacts can be used to operate auxiliary electrical devices such as pumps, alarms and solenoid valves.
| Operating Element | Description |
|---|---|
| Float | Dual-chambered injection-moulded polypropylene float |
| Internal mechanism | Fixed micro switch and moving steel ball |
| Pivot | Adjustable stopper or support pipe |
| Electrical output | Potential-free micro-switch contacts |
| Parameter | Specification |
|---|---|
| Float Protection | Weather Proof IP-68 |
| Micro Switch Rating | 10A, 250V AC |
| Switching Angle | ±45° |
| Maximum Temperature | 50°C |
| Maximum Pressure | 1 bar |
| Terminal Enclosure | Cast Aluminium, Weather Proof IP-67 |
| Cable Gland | Polyamide × PG |
| Process Connection | 2", 2½", 3" & 4" ANSI or BS Standard Flange |
| Integral Cable Length | 5 m or 10 m; larger length on request |
| Contact Type | Micro Switch (SPDT) |
| Float MOC | PP |
| Cable | Neoprene or PVC, Ø9 mm, 3 core 1 mm² |
| Minimum Liquid Specific Gravity | 0.8 |
| Adjustable Stopper | PP |
| Support Pipe | SS304 / PP / PVC |
The brochure describes two installation arrangements for the CFS Series.
| Installation Mode | Description |
|---|---|
| Top Mounted with Adjustable Stopper | The cable is suspended through a top clamp or flange. An adjustable stopper moves along the cable and is positioned at the required fixation point using an internal O-ring. |
| Top Mounted with Support Pipe | A support pipe with the required number of cable float switches is suspended from the tank top through a flange. The cables are tied or clamped to the support pipe at various points to create fixation points. |
The switching differential is adjustable by changing the position of the adjustable stopper. The fixation point determines the level at which the float achieves switch actuation.
According to the brochure, the location of the fixation point depends on the preset level, float shape, weight and differential angle.
| Configuration | Options |
|---|---|
| Enclosure | Not Provided / Cast Aluminium, Weather Proof IP-67 / Others |
| Construction | Adjustable Stopper / Support Pipe × CPVC / SS304 / SS316 / Others |
| Accessories | Not Provided / 'L' Clamp / 2½", 3" or 4" ANSI Flange / Others |
| Number of Floats | One / Two / Three / Four / Others |
| Application | Typical Function |
|---|---|
| Sumps | Liquid level detection and automatic pump control |
| Sewage | Level monitoring and pump switching |
| Factory Drainage | Automatic switching of pumps and other devices |
| Sludgy Water | Level detection in liquids containing sludge |
| Soil Water with Suspensions | Liquid level monitoring and automatic control |
The brochure specifically identifies applications involving sums, sewage, factory drainage, sludgy and soil water containing suspensions, including automatic switching of pumps, submerged pumps, solenoid valves and alarms. :contentReference[oaicite:1]{index=1}
The potential-free contacts of the CFS micro switch can be used to operate auxiliary electrical equipment.
| Equipment | Possible Function |
|---|---|
| Pump | Automatic pump switching |
| Submerged Pump | Automatic level-based switching |
| Solenoid Valve | Automatic valve operation |
| Alarm | High/low liquid level alarm function |
The brochure specifies the CFS ordering structure as:
CFS 1 2 3 4
Example shown in the brochure:
CFS A 1 1 1
| Code | Configuration | Options |
|---|---|---|
| 1 | Enclosure | A — Not Provided B — Cast Aluminium, Weather Proof IP-67 O — Others |
| 2 | Construction | 1 — Adjustable Stopper 2 — Support Pipe × CPVC / SS304 / SS316 O — Others |
| 3 | Accessories | 1 — Not Provided 2 — 'L' Clamp 3 — 2½" / 3" / 4" ANSI Flange O — Others |
| 4 | No. of Floats | 1 — One 2 — Two 3 — Three 4 — Four 0 — Others |
The ordering configuration and installation options above are taken from the CFS ordering section of the brochure. :contentReference[oaicite:2]{index=2}
Note: Actual supplied accessories and configuration depend on the selected ordering code.
The Shridhan CFS Series is available through ProSens Automation for industrial liquid level detection and automatic pump/control applications.
For selecting the correct CFS configuration, we recommend sharing the liquid type, tank/sump arrangement, required switching levels, cable length, mounting arrangement and number of floats.
ProSens Automation — Coimbatore, Erode & Salem
Shipping available across India.
The CFS Series is a Cable Suspended Float Operated Level Switch designed for liquid level detection and automatic level control.
The brochure identifies sumps, sewage, factory drainage, sludgy water and soil water containing suspensions as applications.
Yes. The brochure states that the switching differential is adjustable by changing the position of the adjustable stopper.
The float material is polypropylene (PP).
The brochure specifies a 10A, 250V AC micro switch.
The standard integral cable lengths shown are 5 m and 10 m. Larger lengths are available on request.
The CFS ordering information provides options for one, two, three or four floats, with other configurations available.
The brochure states that the potential-free contacts can operate auxiliary electrical devices such as pumps, submerged pumps, solenoid valves and alarms. The electrical system should be designed according to the actual load and installation requirements.
