Imperial 520 Two-Valve Manifold Gauge Set | 1/4" SAE | No Hoses

Imperial 520 Two-Valve Manifold Gauge Set — 1/4" SAE | IMP-580-CKPSC

The Imperial 520 is a two-valve manifold gauge set designed for HVAC/R technicians who need a reliable, straightforward manifold for refrigerant service, diagnostics, and evacuation on residential and light commercial AC and refrigeration systems. The 520 uses Imperial’s proven diaphragm-type soft-seat valve design — one turn to fully open or close, with fingertip pressure only — making it well suited to deep vacuum service as well as standard charging and diagnostic work.

Important: No hoses are supplied with this manifold. Hoses must be purchased separately. Confirm hose connection sizes and refrigerant compatibility before ordering.

Refrigerant handling requires appropriate trade qualifications. Confirm licensing and compliance requirements with the relevant authority in your state or territory before undertaking refrigerant work.

Key Features

• Two-valve design — low side and high side individually controlled
• Diaphragm-type soft-seat valves — one turn to fully open/close, fingertip pressure only
• Superior for deep vacuum service
• Precision colour-coded gauges with protective boots — shock, vibration, and pulsation resistant
• Sight glass and swivel hanger included
• Ergonomic soft-touch non-slip handles
• 1/4" SAE connections
• PolarShield® Hi-Performance Hose compatible — 800 PSI working pressure, 4,000 PSI burst pressure (hoses sold separately)

Best For

• HVAC/R technicians performing refrigerant charging, diagnostics, and evacuation on residential and light commercial systems
• Technicians who need a reliable two-valve manifold for standard AC and refrigeration service
• Deep vacuum service applications
• Technicians who supply their own hoses

Check Before Ordering

• No hoses included — purchase hoses separately and confirm connection sizes before ordering
• Confirm refrigerant compatibility with your specific system and refrigerant type
• For R410A and R32 systems requiring 5/16" connections, see the Imperial 800 series manifolds
• Refrigerant handling requires appropriate trade qualifications — confirm licensing requirements in your state or territory
• Confirm warranty terms with HVAC Trade Supply at time of purchase

Frequently Asked Questions

Do hoses come with the Imperial 520?

No — hoses are not included. Purchase hoses separately and confirm connection sizes and refrigerant compatibility before ordering. Contact our team for compatible hose options.

What refrigerants is the Imperial 520 compatible with?

Confirm refrigerant compatibility against the Imperial manufacturer’s current datasheet. The 520 uses 1/4" SAE connections — confirm suitability for your specific refrigerant and system before use.

Is the Imperial 520 suitable for R410A?

R410A systems typically require 5/16" SAE connections. Confirm connection size compatibility before ordering. For R410A and R32 applications, see the Imperial 800 series.

What is the warranty?

Confirm current warranty terms with HVAC Trade Supply at time of purchase.

Browse our full refrigerant gauge and manifold range or contact our team for advice on the right manifold for your application.