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Glass Tube Rotameters

Name: Glass Tube Rotameters
Brand: FLOWTECH MEASURING INSTRUMENTS PVT. LTD.
Price: 4950 INR
Availability: InStock

Price 4950 INR/ Piece

Get a Price/Quote

MOQ : 1 Piece

Glass Tube Rotameters Specification

Pressure Range
Up to 10 kg/cm

Resolution
According to scale graduation, typically high for low ranges

Equipment Type
Variable Area Flow Meter

Sensor Type
Float-based (metal or PTFE), Mechanical Sensing

Temperature Range
Up to 120C (standard), higher versions on request Celsius (oC)

Flow Rate
10 to 15,000 LPH (Liquid) / 0.1 to 75 Nm/hr (Gas)

Measurement Range
As per application and tube size

Humidity %
Not Affected

Connectivity Type
Flanged / Threaded / Hose Connections

Material
Borosilicate Glass Tube, End Connections in SS / PVC / PP / PTFE

Power Supply
Not Required (Manual Operation)

Accuracy
2% of Full Scale %

Display Type
Direct Reading Graduated Scale

Range
10 to 15,000 LPH (Liquid) / 0.1 to 75 Nm/hr (Gas) [customizable]

Glass Tube Rotameters Trade Information

Minimum Order Quantity
1 Piece

Payment Terms
Paypal, Cash Against Delivery (CAD), Cash on Delivery (COD), Cash in Advance (CID), Cheque, Letter of Credit at Sight (Sight L/C), Telegraphic Transfer (T/T), Letter of Credit (L/C)

Supply Ability
500 Pieces Per Month

Delivery Time
1 Week

Sample Available
Yes

Sample Policy
Contact us for information regarding our sample policy

Packaging Details
Wooden Cages

Main Domestic Market
All India, Tripura, West India, Andaman and Nicobar Islands, Gujarat, Mizoram, Chandigarh, Himachal Pradesh, Punjab, Manipur, Meghalaya, Madhya Pradesh, Arunachal Pradesh, Karnataka, Goa, South India, Jammu and Kashmir, Dadra and Nagar Haveli, Nagaland, Rajasthan, Jharkhand, North India, Daman and Diu, Central India, Pondicherry, Haryana, Kerala, Telangana, Uttar Pradesh, Andhra Pradesh, Bihar, Uttarakhand, Maharashtra, Chhattisgarh, Delhi, Odisha, Sikkim, Lakshadweep, East India, Tamil Nadu, West Bengal, Assam

About Glass Tube Rotameters

Glass Tube Rotameters are intended for general in line and By-Pass metering applications (i.e. for Gas & Liquid. where operating conditions are with the limitations of Glass metering tubes. These are the principle of Variable Area. The float moves freely up and down tapered borosilicate glass with fluid flow from bottom to top. The float takes up a position where buoyancy forces and the float weight are balanced in proportion to flow rate. The Vertical position of the float as indicated by scale is the measure of the instantaneous flow rate.

Glass Tube Rotameter Specifications:

Accuracy :+/- 2% F.S.D.
Temperature Ratings : Maximum Operating Temperature rating is 121 degree centigrade for Gas services and 93 degree centigrade for Liquid services.
Repeatability :0.5 %
Connections :Flanged Or Screwed Or Triclover Joint OR Hose Nipple.
Rangebility: 10:1
Enclosure :IP 55 OR IP 65 on request.
Scale length : 180-200 mm.

Materials Of Constructions:

Tube : Borosilicate Glass
Float : SS316, PTFE, Aluminium and P.P.
Pickings : Neoprene, PTFE, Silicon, Viton
Frame and Cover : M.S.OR SS
End Fitting :M.S.,C.S., SS304, SS316, CF-8M, CF8, C.I. PTFE Lined, SS PTFE Lined, PVC, others on request.
Frame and Cover : M.S.OR SS

Frequently Asked Questions aboutGlass Tube Rotameters:

1. What are rotameter's biggest drawbacks?

Ans: It is difficult to handle the glass tube type. Vertical mounting is required. It is not suitable for pulsating services. Generally, it only applies to modest pipe services.

2. How does a glass tube rotameter work?

Ans: A Rotameter is a type of variable area flow metre that operates in a straightforward manner by passing a liquid or gas through a tapered tube. This gas must first elevate a float that is held inside the tube in order for it to travel through it.

3. What kind of tube material is for rotameter?

Ans: A rotameter consists of a tapered tube, usually made of glass, with a "float" within that is pushed up by the drag force of the flow and dragged down by gravity. The "float" might be made of anodized aluminium or ceramic.

4. What is the application of glass tube rotameter?

Ans: Rotameters, sometimes referred to as variable area flow metres, are devices that measure the volumetric flow rates of gases or liquids as they move through the tapering tube of the rotameter.

5. What is a rotameter also called?

Ans: It is also called variable area flow meter

6. Is rotameter used to measure pressure?

Ans: A Rotameter is a tool used to gauge fluid flow rates. With its metal float and glass tube, it is a well-known instrument used to gauge a fluid's volumetric pressure.

Versatile Mounting and Connection Options

Glass Tube Rotameters can be installed vertically as standard or horizontally with a special design. They come with diverse end connections including BSP/NPT threads and can be supplied with flanged or hose fittings. This versatility makes them suitable for varied system requirements in both retrofit and new installations across different industries.

Precision Flow Measurement and Usability

These rotameters feature a variable area operating principle, providing direct visual flow indication via the marked graduated scale. The high-clarity borosilicate tube and optional shields offer both safety and durability. Users benefit from optional flow regulation via an integral needle valve delivering precise flow control, ideal for laboratory and process applications.

Minimal Maintenance and Maximum Efficiency

Glass Tube Rotameters are designed for straightforward maintenance, featuring easy disassembly and minimal parts. With mechanical float-based sensing, they require no external power, leading to zero power consumption, and can be cleaned or serviced readily. This assures long-term, reliable operation even with continuous use and in challenging environments.

FAQs of Glass Tube Rotameters:

Q: How does a Glass Tube Rotameter measure flow?

A: A Glass Tube Rotameter operates on the variable area principle, where the float rises in the tapered glass tube as the fluid flows. The floats position, viewed against the direct reading graduated scale, indicates the flow rate of liquid or gas passing through the meter.

Q: What are the primary applications for Glass Tube Rotameters?

A: These rotameters are widely used in chemical processing, water treatment, pharmaceutical production, laboratories, and OEM equipment where precise measurement of clean liquids and gases is essential for process control and safety.

Q: When should I choose a vertical versus a horizontal mounting configuration?

A: Vertical mounting is the standard and most commonly recommended configuration for optimal accuracy. Horizontal mounting can be selected with special design modifications when installation space or system layout necessitates a non-vertical orientation.

Q: Where can these rotameters be installed within a system?

A: Glass Tube Rotameters are suitable for indoor and sheltered installations across chemical plants, water treatment facilities, research laboratories, and production lines, wherever real-time flow monitoring of clean media is needed.

Q: What is the process for cleaning and maintaining the rotameter?

A: The rotameter is designed for minimal maintenance. To clean, simply disassemble the unit following the manufacturers instructions, rinse with a suitable cleaning solution, and reassemble. No special tools or power supply are needed, keeping maintenance efficient and straightforward.

Q: How do customized options benefit specific applications?

A: Custom options, such as tailored scales, special tube lengths, different float materials, and protective shields, allow the rotameter to match specific flow, chemical compatibility, and safety requirements for various industries and unique operational environments.

Q: What are the benefits of using a Glass Tube Rotameter over electronic flow meters?

A: Glass Tube Rotameters offer the advantage of direct visual indication, do not require any external power source, are highly reliable under a range of temperatures and pressures, and are straightforward to operate and maintain, leading to cost-effective, consistent flow monitoring.

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