Deward Type Automatic Medical Gas Manifold

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Description

Medical Gas Automatic Manifold for Deward type cylinder headers, meeting NFPA99 and ASTM B819 (clean for oxygen use).

Cabinet:

  • Indoor use, NEMA class 12 IP56 protection level cabinet, in Rittal brand powder coating finish with CE certificate.
  • Indoor-Outdoor use, NEMA class 3 IP56 protection level cabinet, in Rittal brand powder coating finish with CE certificate.
  • Weatherproof-Outdoor, NEMA Class 4X IP56 rated enclosure, in polished stainless steel finish 3.

Control System:

  • High speed electronic PCB with 7 " full color LCD display, touch screen control.
  • 110-220 vac normally open electric valve.
  • Non-return valves
  • 4-20Map high and low pressure transducers

Graphics:

  • High and Low pressure Display readings for primary and secondary deward cylinder headers in real time.
  • High and Low pressure Display readings for manifold final pressure delivery in real time.
  • Pressure units.
  • Alarm signals.

Signals (Alarms):

  • Low delivery pressure alarm.
  • Main cylinder header empty alarm.
  • Backup cylinder header in use alarm.
  • High pressure alarm (above of 20% of nominal pressure).
  • Leak alarm (25% pressure drop detected in the reserve or stand by cylinder header).

Minimum Pressure of Deward Cylinders:

  • 230 PSI

By-pass System:

  • 2 low pressure final line regulators with manual isolation stainless steel ball valves (one regulator in use and the other in reserve).

Over-pressure and vent valve system:

  • Interconnected circuit protection system of relief valves, over-pressure guided to the exterior of cabinet manifold.

Comunication System:

  • 5 alarms Relay type (Dry Contact) connections to a remote master panel alarm connection, as well an integration of a remote monitoring and administration system BMS (Building Management System) common language based on relay switching.
  • Two-wire Modbus RTU RS485 communication in slave mode for monitoring pressures in PSI units and alarm conditions from a BMS (Building Management System), SCADA (Supervisory Control and Data Acquisition) system or any equipment configured as master panel.
  • Main Cilynder Header use choosing button.

Emergency Ports:

  • Located Before end-line regulators and only for low pressure 50-55 PSI.
  • Coupling with CGA inlet according to the medical gas of the Manifold.

Pressure Gauges:

  • To high and low pressure analog type.
 
Warning:
 
  • Do not use Oil and its Derivatives.
  • Operation and maintenance personnel must be certified for the manifold safe operation.
  • Quality and Medical Gases Purity Degree, as well condition of containers, cylinders and their connections will be always responsibility of the medical gases supplier.
  • Deward cylinder evaporators must work properly in the event of an oxygen over demand to avoid freezing of the manifold due to inefficient liquid evaporation.
  • An external vaporizer with sufficient capacity for consumer demand should be used in case that Deward cylinder evaporators will be insufficient.

Specifications

Flow Delivery:
  • Standard Flow Delivery of 65 Scf/min.
  • For larger deliveries, consult the factory in advance.
Cylinder Headers:
  • Modular Assembly.
  • Red brass tube special extrusion SPS alloy 23000, H58 Drawn temper made, complies with ASTM B-43-98, ASTM B-819 (Clean for oxygen use) 3,000 PSI working pressure.
  • CGA connection points for each cylinder with self-closing non-return valves (check) brass made.
  • Manual master valve to opening and closing control of the primary and secondary cylinder headers.
  • Relief valve to each cylinder headers.
Pigtails:
  • Cryogenic: Flexible rubber hose, CGA connection for the specific gas.
Available Gases:
  • CGA540 Oxygen Deward type 230PSI minimum pressure.
  • Low pressure (50-55psi) emergency input CGA540 coupling port, for a backup header to medical gas automatic manifold deward type.
  • Liquid Nitrogen cryogenic systems CGA 580 connection for Dewar type cylinders, complies with NFPA99-2015, includes emergency inlet in low pressure stage.
Require:
  • 100-220 V 50-60 Htz. power supply
  • External evaporators in case of an oxygen over demand that freezes the system
  • A source primary supply bulk (microbulk) in case of an oxygen over demand that freezes the manifold, (The manifold becomes a secondary or backup source).
Wire type network system connection:
  • Belden STP (Shield Twisted Pair) #8461ZH or #8208.
Effects on the Equipment operation that must be avoided:
  • Voltage variations in the electrical power supply.
  • Main power supply with emergency power plants.
  • Intermittent Power supply (power lost and regained often in a short time).
Installation recommendations:
  • Check ground connection (to protect from unwanted discharges).
  • Install a system against voltage variations and power backup (Non-Break).
  • Install a system with a surge suppressor (against power surges and discharges).

Brochure

ficha comercial MANIFOLD AUTOMATICO_WEB_2020

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