# Venturi tube — FLC-VT-BAR

> Venturi tube for liquid, gas and steam flow measurement with high pressure recovery and low upstream/downstream pipe requirements.

- Catalog code: flc_vt_bar_flc_vt_ws
- Model: FLC-VT-BAR
- Category: Flow measurement › Primary flow elements
- Product page: https://avigan.com.ua/wika/en/products/flc_vt_bar_flc_vt_ws
- Price: on request
- Supplier: AVIGAN (TOV VIKA Prylad), official WIKA partner in Ukraine

## Overview

Venturi tubes are reliable, easy to use and low-maintenance. Depending on the measuring point requirement, there are different versions to choose from.

## Applications

- Power generation
- Oil production and refining
- Water treatment and distribution
- Gas processing and transmission
- Chemical and petrochemical industry

## Special features

- Suitable for liquid, gas and steam flow measurement
- Accuracy ≤ ±0.5 % of actual flow rate
- Repeatability of measurement 0.1 %
- Lowest pressure loss in the family of primary flow elements
- Calibration may be performed if required

## Specifications

| Parameter | Value |
|---|---|
| model | FLC-VT-BAR |
| product family | FLC-VT |
| short description | Venturi tube for liquid, gas and steam flow measurement with high pressure recovery and low upstream/downstream pipe requirements. |
| subcategory | Venturi tube |
| languages in datasheet | en |
| technology | differential-pressure |
| pipe diameter mm | 800 |
| accuracy percent | 0.7 |
| process connections | Butt weld; Bevelled; Flanged; Direct tap, threaded; Direct tap, flange connection; NPT; Annular chamber tap; Piezometric ring; butt weld; bevelled; flanged |

## Datasheet tables

### Basic information

| Designs | ■ ISO 5167-4 ■ ASME MFC-3M |
|---|---|
| Nominal size and pipe schedule | All nominal sizes are available in accordance with relevant standards. The pipe schedule must be specified by the customer. Standards cover diameters from 2 ... 48" [50 ... 1,200 mm]. Larger diameters are available on request. |
| Nominal pressure ratings | Available in accordance with all relevant standards. |
| Materials | A wide range of materials is available. |

### Venturi tube, model FLC-VT-BAR, from bar stock

| Description | The model FLC-VT-BAR is manufactured from bar stock.The internal profile of this model is obtained by machining. |
|---|---|
| Internal profile | ■ As cast ■ Machined ■ As cast with machined upstream and convergent section The respective limits of use vary depending on the selected internal profile. |
| Nominal size | 50 ... 800 mm[2 ... 31.5 in] |
| Beta ratio | 0.3 ... 0.75 |
| Reynolds number | 2 x 10 4 ... 3.2 x 10 6 |
| Accuracy | 0.7 ... 3 %of the provided discharge coefficient |

### Venturi tube, model FLC-VT-WS, from welded sheet

| Description | Model FLC-VT-WS is a classical Venturi tube, which is manufactured from welded sheets. For smaller nominal sizes the throat section can be machined from a round bar. |
|---|---|
| Nominal size | 200 ... 1,200 mm[7.9 ... 47.2 in] |
| Beta ratio | 0.4 ... 0.7 |
| Reynolds number | 4 x 10 4 ...1 x 10 6 |
| Accuracy | 1,5 ... 3 %of the provided discharge coefficient |

## Documents

- [ds_fl1004_en_co_4428a0](https://avigan.com.ua/wika/docs/wika/ds_fl1004_en_co.pdf) — PDF, 497 KB, en