AVSU’s & Modules

1 - AVSU’S

Single AVSU
The Single Area Valve Service Units (AVSU’s) are manufactured under BS EN 13485 Medical Devices: Quality Management Systems and Medical Device Directive 93/42/EEC (CE0086) Class IIb. They provide a local gas isolation facility for use during normal installation and maintenance or in the event of an emergency. They are built in accordance with the HTM02-01, C11 and BS EN 18082 standards and are suitable for Oxygen, Nitrous Oxide, Oxy-Nitrous Oxide, MA4, MA7, CO2 and Vacuum (other gases on request).

Single AVSU Features

  • The AVSU can be installed as a flush or surface mounted.
  • Housed in a steel white epoxy coated box and a key operated 90° lock for security with 20,000 lock combinations.
  • Gas Identification is located on the body of the AVSU behind the window and immovable.
  • A large viewing window to the door gives immediate indication of Gas Identification located on body of AVSU, valve position and flow direction.
  • In an emergency this can be gained by pulling the window thus allowing access to the valve. Anti-Tamper device can be fitted to the window and connected to our Digital Alarm and BMS to incorporate monitoring of all CPX AVSU’s.
  • The valve type is a 90° shut off ball valve, which is operated via a red ergonomic handle, each unit comes complete with a blanking plate which can be fitted, to either side of the valve.
  • Non-interchangeable NIST connectors are fitted upstream and downstream of the valve. Including 100% sealing serviceable non-return valves to allow the pipeline to be pressure tested and provide an easily accessible point for gas sampling.
  • Pressure sensors shall be fitted inside the box to enable local monitoring and servicing via Copper Sensing Pipe.
  • Side entry sizes available 22mm, 28mm, 35mm and 42mm (other entry versions available).


Compact Multi Valve AVSU

Compact Multi Valve AVSU Features
  • NFPA & EN ISO 7396-1 Fully Compliant
  • Emergency Access via simple push mechanism with no serviceable items required to reset, requiring appropriate lock key to reset.
  • Downstream NIST connector for all gas types including Vacuum.
  • Optional DISS or Gas Outlet can be fitted inside lockable box.
  • Pressure Gauge with easy to read dial gives user immediate information.
  • Integrated 12V Digital Alarm factory set for the Gas types and Pressure Settings.
  • Battery back up in case of power failure shall continue to operate for up to 24 hours.
  • Modbus ASCI outputs for digital connection to BMS to monitor Live Local pressures within Hospital. * Connection to CPX ‘Hospi-View’ Schematic BMS system
  • Option Flow Measurement can be connected to each individual gas type to provide flow data 24 hours each day.
  • Flush or Surface Type fitting for 3, 4, 5 or 6 gas types available.

Product codes


Product Code AVSU Type
AVSU*SIZE*-*GAS* Single AVSU
AVSU-MOD-POLY*QTY*A AVSU Module (Semi Flush or Surface Type)
MOD-COMPACT-*QTY*-ALARM Compact AVSU Module
Example:   AVSU22-O2 22mm AVSU – Oxygen
Example:   AVSU-MOD-POLY-3A 3 Gas AVSU Module (Semi Flush or Surface Type)
Example:   MOD-COMPACT-3-ALARM AVSU Module – 3 Gas Compact c/w Digital Alarm

2 - AVSU Module


The CPX HTM standard AVSU Module is used in conjunction with and by configuring Precision UK’s Area Valve Service Units (AVSU) for one to six gases services, depending on the hospital area served.

Features

  • Modules are available in the following Flush or Surface fitting types.
  • HTM 02-01, BS EN 18082 and C11 fully compliant ensuring individual gas separation in case of emergency.
  • Designed to fit ceiling heights of 2.4mtr, 2.7mtr or 3mtr as standard, other lengths available.
  • Gas venting as per BS EN 11197to avoid inadvertent gas build up in cavity wall installation.
  • Upstream and Downstream NIST connectors with 100% serviceable non-return valves fitted on all gases.
  • Gas types available O2, N2O,O2/N2O, MA4, SA7, VAC, CO2, N2, Helium Mix, Lab Gas other variables available on request.
  • Factory tested and certified Pre-Piped EN 13348 Copper Tube to top ceiling level to aid in installation.
  • Cover types available- Epoxy coated steel or Polymer laminated anti-Microbial cover.
  • Extremely hard wearing impact proof Polymer Laminate material available in any RAL colouror Finish type enabling the Module to fit Hospital architectural design requirement.
  • Factory Fitted CPX Analogue or Digital Area Alarm (Also available to be manufactured as remote alarm set-up)
  • On board pressure sensors shall be fitted local to each gas line behind locked door.Integrated 12V Digital Alarm factory set for the Gas types and Pressure Settings. Battery back up in case of power failure shall continue to operate for up to 24 hours.
  • Modbus ASCI outputs for digital connection to BMS to monitor Live Local pressures within Hospital. * Connection to CPX ‘Hospi-View’ Schematic BMS system
  • Option Flow Measurement can be connected to each individual gas type to provide flow data 24 hours each day.
  • Delivered assembled to site for easy one man installation.

Product codes


Product Code AVSU Type
AVSU*SIZE*-*GAS* Single AVSU
AVSU-MOD-POLY*QTY*A AVSU Module (Semi Flush or Surface Type)
MOD-COMPACT-*QTY*-ALARM Compact AVSU Module
Example:   AVSU22-O2 22mm AVSU – Oxygen
Example:   AVSU-MOD-POLY-3A 3 Gas AVSU Module (Semi Flush or Surface Type)
Example:   MOD-COMPACT-3-ALARM AVSU Module – 3 Gas Compact c/w Digital Alarm