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V-Flow Line operating instructions
Variable area flowmeters
Handbuch PCU1000
and high-precision control valves
for gases and liquids
Vögtlin Instruments AG – flow technology
Langenhagstrasse 1 | 4147 Aesch (Switzerland)
Phone 41 (0)61 756 63 00 | Fax +41 (0)61 756 63 01
www.voegtlin.com | info@voegtlin.com

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Summarization of Contents

Introduction and General Information
Service, Quality, and Warranty
Outlines the company's commitment to quality, service provision, and the terms and limitations of product warranty.
General Usage Instructions
Covers essential guidelines for safe and effective operation, including handling, safety warnings, and manual navigation.
Variable Area Flowmeter Principles
Explains the operational mechanism of variable area flowmeters and the identification of instrument types.
Technical Data and Specifications
Q-Flow Series Technical Details
Details specifications, materials, and installation setups for the Q-Flow series.
V-100 Series Technical Details
Details specifications, materials, and installation setups for the V-100 series.
M-Flow Series Technical Details
Details specifications, materials, and installation setups for the M-Flow series.
Flow Measurement and Valve Control
M-Flow Valve Operation Options
Describes various operational modes, valve configurations, and control mechanisms available for M-Flow valves.
Variable Area Flowmeter Ranges
Displays direct reading scales for air (In/h) and water (l/h) flow measurements for Q-Flow and V-100 instruments.
mm-Scale Flowmeter Ranges
Lists mm-scale measuring ranges for Q-Flow and V-100 flowmeters, applicable for air and water scales.
M-Flow Control Valve Cv-Values
Illustrates the relationship between control valve size, spindle turns, and Cv-values for M-Flow series.
Installation and Commissioning Procedures
Instrument Design and Mounting Guidelines
Covers requirements for instrument design, optimal placement of control valves, and selection of direct reading or mm-scales.
Installation and Commissioning Steps
Provides sequential instructions for installing instruments, making connections, and performing the initial commissioning process.
Special Features and Mounting
Panel Mounting for Q-Flow
Details the specific procedures, dimensions, and aperture requirements for panel mounting Q-Flow instruments.
Faceplate Mounting for V-100
Outlines the steps, dimensions, and panel aperture specifications for securely mounting V-100 instruments via a faceplate.
Limit Indicator Installation and Use
Explains the functionality, wiring, setting, minimum spacing, and application areas for limit indicators on V-100 flowmeters.
Disassembly and Maintenance
General Disassembly and Maintenance
Offers crucial instructions for safely disassembling Q-Flow, V-100, and M-Flow instruments, along with basic maintenance advice.
Instrument Cleaning and Return Process
Describes recommended cleaning methods for soiled instruments and the procedure for returning them for service.
Appendix: Product Identification and Dimensions
Q-Flow Dimensions and Fittings
Presents detailed dimensional drawings and fitting specifications for various Q-Flow models.
V-100 Dimensions and Fittings
Provides comprehensive dimensional diagrams and fitting information for the V-100 series flowmeters.
M-Flow Dimensions and Fittings
Displays dimensional data and fitting options for M-Flow straight valves and corner valves.
Q-Flow Type Code Explained
Details the structure of the Q-Flow type code, including instrument type, size, materials, setup, and options.
V-100 Type Code Explained
Explains the coding system for V-100 instruments, covering type, size, materials, setup, valve position, connections, and options.
M-Flow Type Code Explained
Details the type code construction for M-Flow instruments, including instrument type, size, materials, setup, valve direction, and connections.
Contamination Declaration
Provides a mandatory form to declare the contamination status of devices being returned for service or repair.
Document Change Log
Revision History
Lists the version history of the document, including dates, version numbers, authors, and notes on changes made.

Table of Contents