Uniweld VV1 Vapor Vue visible vapour charging device Uniweld VV1 Vapor Vue retail packaging Uniweld VV1 Vapor Vue product banner
Visible Vapour Charging Convert liquid refrigerant to vapour and monitor flow through the charging line
Uniweld VV1 Vapor Vue product banner

Uniweld

Vapor Vue, 1/4 in. Flare

The Uniweld UW-VV1 Vapor Vue® is a visible vapour charging device that connects to the low side of a charging manifold to help HVAC/R technicians charge refrigerant as vapour while monitoring movement through the double sight glass.

Available exclusively through your local distributor
Brand Uniweld
SKU UW-VV1
Product Type Visible vapour charging device
Connection 1/4 in. flare fittings
Flow View Double sight glass
Charging Use Connects to the low side of a charging manifold
Pressure Test Factory pressure tested to 800 PSI
Refrigerant Types R-410A, CFC, HCFC, HFC, zeotropic and azeotropic refrigerants
Omni Weight 275 g
Omni Dimensions 60 × 100 × 250 mm

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UW-VV1

A compact visible charging accessory for turning liquid refrigerant into vapour and checking movement through the line.

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Technical snapshot

Key VV1 details.

Built for refrigerant charging workflows where technicians need visual confirmation of flow and controlled vapour charging through a manifold setup.
Part Number VV1 Omni SKU UW-VV1
Fittings 1/4 in. flare For manifold charging setups
Viewing Point Double sight glass Monitor vapour rate and movement
Pressure Test 800 PSI Factory pressure tested
Charging Rate Up to 8× faster As listed by Uniweld
Omni Size 60 × 100 × 250 mm Listed product dimensions

Visible vapour charging

Charge through the low side while watching refrigerant movement.

The VV1 uses natural heat absorption to flash liquid refrigerant from the cylinder and charge it into the system as vapour. The double sight glass gives technicians a visual reference while the manifold valve controls the vapour rate.

  • Designed to connect to the low side of a charging manifold.
  • Helps change liquid refrigerant to vapour before it enters the system.
  • Provides visual confirmation through the double sight glass.
  • Supports charging, recovery, evacuation and diagnostic service workflows.
  • Compact 1/4 in. flare accessory for HVAC/R field work.

What it helps check

The sight glass helps technicians confirm whether refrigerant is moving, flashing and clearing through the line while the manifold valve is adjusted.

  • Visible flow during vapour charging.
  • Liquid-to-vapour activity through the device.
  • Line movement during charging and service checks.

Charging path

Liquid in, vapour out, controlled at the manifold.

Place the Vapor Vue® in the low-side charging path, use the manifold valve to control the flow, and watch the sight glass for movement as refrigerant flashes to vapour.

01 Cylinder

Liquid refrigerant leaves the cylinder and enters the charging setup.

02 Vapor Vue®

The VV1 absorbs heat and helps flash liquid refrigerant to vapour.

03 Low-side manifold

Use the manifold valve to control vapour rate into the system.

Sight glass activity Monitor the vapour rate and refrigerant movement through the device.
Airflow assist Warm discharge airflow can improve heat exchange and charging rate efficiency.
Compressor care Controlled vapour charging helps reduce liquid slugging risk during service.

Service checks

Use with the correct refrigerant, manifold and charging procedure.

The Vapor Vue® is a charging accessory, not a replacement for safe refrigerant handling, pressure monitoring or manufacturer charging instructions. Confirm the system, refrigerant and hose path before opening valves.

Before charging
  • Inspect the sight glass, flare fittings, seals and hose connections.
  • Confirm the refrigerant type and required charging method.
  • Connect to the low side of the charging manifold as specified by the setup.
During service
  • Monitor system pressures and temperatures throughout the charge.
  • Use the manifold valve to control vapour rate through the VV1.
  • Follow refrigerant handling, recovery and site safety procedures.

Related Uniweld products

Useful Omni Tools links.

Internal links to the Uniweld range and related manifold, hose, charging and nitrogen service products.

Useful information & documents

VV1 resources.

Omni product and range links, plus official Uniweld product information for the Vapor Vue® charging accessory.

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